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Choudhury, Debajyoti ; Mahajan, Namit ; Patra, Sudhanwa ; Sarkar, Utpal (2012) Radiative leptogenesis at the TeV scale Journal of Cosmology and Astroparticle Physics, 2012 (04). 017. ISSN 1475-7516

Ma, Ernest ; Sarkar, Utpal (2012) Scalar neutrino as asymmetric dark matter: radiative neutrino mass and leptogenesis Physical Review D, 85 (7). 075015_1-075015_4. ISSN 1550-7998

Gu, Pei-Hong ; Sarkar, Utpal (2011) Baryogenesis and neutron–antineutron oscillation at TeV Physics Letters B, 705 (3). pp. 170-173. ISSN 0370-2693

Azam, Mofazzal ; Bhatt, Jitesh R. ; Sarkar, Utpal (2011) Experimental signatures of cosmological neutrino condensation Physics Letters B, 697 (1). pp. 7-10. ISSN 0370-2693

Gu, Pei-Hong ; Sarkar, Utpal (2011) Leptogenesis bound on spontaneous symmetry breaking of global lepton number The European Physical Journal C, 71 (2). p. 1560. ISSN 1434-6044

Ghosh, Kirtiman ; Mukhopadhyaya, Biswarup ; Sarkar, Utpal (2011) Signals of an invisibly decaying Higgs boson in a scalar dark matter scenario: a study for the large hadron collider Physical Review D, 84 (1). 015017_1-015017_9. ISSN 0556-2821

Cowsik, Ramanath ; Nussinov, Shmuel ; Sarkar, Utpal (2011) Superluminal neutrinos at OPERA confront pion decay kinematics Physics Review Letters, 107 (25). p. 251801. ISSN 0031-9007

Borah, Debasish ; Patra, Sudhanwa ; Sarkar, Utpal (2011) TeV scale left-right symmetry with spontaneous D-parity breaking Physical Review D, 83 (3). 035007_1-035007_13. ISSN 1550-7998

Gu, Pei-Hong ; Lindner, Manfred ; Sarkar, Utpal ; Zhang, Xinmin (2011) Weakly interacting dark matter and baryogenesis Physical Review D, 83 (5). 055008_1-055008_5. ISSN 1550-7998

Gu, Pei-Hong ; Sarkar, Utpal (2010) Leptogenesis with linear, inverse or double seesaw Physics Letters B, 694 (3). pp. 226-232. ISSN 0370-2693

Gu, Pei-Hong ; Ma, Ernest ; Sarkar, Utpal (2010) Pseudo-Majoron as dark matter Physics Letters B, 690 (2). pp. 145-148. ISSN 0370-2693

Bhatt, Jitesh R. ; Desai, Bipin R. ; Ma, Ernest ; Rajasekaran, G. ; Sarkar, Utpal (2010) Neutrino condensate as origin of dark energy Physics Letters B, 687 (1). pp. 75-78. ISSN 0370-2693

Gu, Pei-Hong ; Sarkar, Utpal (2010) Pathways to testable leptogenesis Modern Physics Letters A, 25 (7). p. 501. ISSN 0217-7323

Gu, Pei-Hong ; Sarkar, Utpal (2010) Common origin of visible and dark universe Physical Review Letters, 81 (3). 033001_1-033001_7. ISSN 0031-9007

Bhatt, Jitesh R. ; Patra, Sudhanwa ; Sarkar, Utpal (2010) Gravitational correction to SU(5) gauge coupling unification Modern Physics Letters A, 25 (4). pp. 283-293. ISSN 0217-7323

Patra, Sudhanwa ; Sarkar, Anjishnu ; Sarkar, Utpal (2010) Spontaneous left-right symmetry breaking in supersymmetric models with only Higgs doublets Physical Review D, 82 (1). 015010_1-015010_9. ISSN 1550-7998

Bhatt, Jitesh R. ; Gu, Pei-Hong ; Sarkar, Utpal ; Singh, Santosh K. (2009) Neutrino dark energy in grand unified theories Physical Review D - Particles, Fields, Gravitation and Cosmology, 80 (7). 073013_1-073013_14. ISSN 1550-7998

Gu, Pei-Hong ; Sarkar, Utpal ; Zhang, Xinmin (2009) Visible and dark matter genesis and cosmic positron and electron excesses Physical Review D - Particles, Fields, Gravitation and Cosmology, 80 (7). 076003_1-076003_5. ISSN 1550-7998

Gu, Pei-Hong ; He, Hong-Jian ; Sarkar, Utpal ; Zhang, Xinmin (2009) Double type-II seesaw scenario, baryon asymmetry, and dark matter for cosmic e^± excesses Physical Review D - Particles, Fields, Gravitation and Cosmology, 80 (5). 053004_1-053004_8. ISSN 1550-7998

Patra, Sudhanwa ; Sarkar, Anjishnu ; Sarkar, Utpal ; Yajnik, Urjit A. (2009) Spontaneous parity violation in a supersymmetric left-right symmetric model Physics Letters B, 679 (4). pp. 386-389. ISSN 0370-2693

Gu, Pei-Hong ; Sarkar, Utpal (2009) Annihilating leptogenesis Physics Letters B, 679 (2). pp. 118-121. ISSN 0370-2693

Bhatt, Jitesh R. ; Sarkar, Utpal (2009) Majorana neutrino superfluidity and stability of neutrino dark energy Physical Review D - Particles, Fields, Gravitation and Cosmology, 80 (4). 045016_1-045016_6. ISSN 1550-7998

Gu, Pei-Hong ; Hirsch, M. ; Sarkar, Utpal ; Valle, J. W. F. (2009) Neutrino masses, leptogenesis, and dark matter in a hybrid seesaw model Physical Review D - Particles, Fields, Gravitation and Cosmology, 79 (3). 033010_1-033010_4. ISSN 1550-7998

Sahu, Narendra ; Sarkar, Utpal (2008) Extended Zee model for neutrino mass, leptogenesis, and sterile-neutrino-like dark matter Physical Review D - Particles, Fields, Gravitation and Cosmology, 78 (11). 115013_1-115013_6. ISSN 1550-7998

Gu, Pei-Hong ; Sarkar, Utpal (2008) Radiative seesaw in left-right symmetric model Physical Review D - Particles, Fields, Gravitation and Cosmology, 78 (7). 073012_1-073012_5. ISSN 1550-7998

Gu, Pei-Hong ; Sarkar, Utpal (2008) Radiative neutrino mass, dark matter, and leptogenesis Physical Review D - Particles, Fields, Gravitation and Cosmology, 77 (10). 105031_1-105031_4. ISSN 1550-7998

Bhatt, Jitesh R. ; Gu, Pei-Hong ; Sarkar, Utpal ; Singh, Santosh K. (2008) Left-right symmetric model of neutrino dark energy Physics Letters B, 663 (1-2). pp. 83-85. ISSN 0370-2693

Gu, Pei-Hong ; Sarkar, Utpal (2008) SO(10) GUT baryogenesis Physics Letters B, 663 (1-2). pp. 80-82. ISSN 0370-2693

McDonald, John ; Sahu, Narendra ; Sarkar, Utpal (2008) Type-II seesaws at colliders, lepton asymmetry and singlet scalar dark matter Journal of Cosmology and Astroparticle Physics, 2008 (4). No pp. given. ISSN 1475-7516

Gu, Pei-Hong ; He, Hong-Jian ; Sarkar, Utpal (2008) Realistic neutrinogenesis with radiative vertex correction Physics Letters B, 659 (3). pp. 634-639. ISSN 0370-2693

Gu, Pei-Hong ; Sarkar, Utpal (2008) Leptogenesis, dark matter and Higgs phenomenology at TeV Nuclear Physics B, 789 (1-2). pp. 245-257. ISSN 0550-3213

Gu, Pei-Hong ; Sarkar, Utpal (2008) B−L conserved baryogenesis Modern Physics Letters A, 23 (25). pp. 2047-2051. ISSN 0217-7323

Gu, Pei-Hong ; He, Hong-Jian ; Sarkar, Utpal (2007) Dirac neutrinos, dark energy and baryon asymmetry Journal of Cosmology and Astroparticle Physics, 2007 (11). No pp. given. ISSN 1475-7516

Gu, Pei-Hong ; He, Hong-Jian ; Sarkar, Utpal (2007) Neutrino dark energy and baryon asymmetry from Higgs sector Physics Letters B, 653 (5-6). pp. 419-423. ISSN 0370-2693

Ma, Ernest ; Sarkar, Utpal (2007) Revelations of the E₆/U(1)_N model: two-loop neutrino mass and dark matter Physics Letters B, 653 (2-4). pp. 288-291. ISSN 0370-2693

Sahu, Narendra ; Sarkar, Utpal (2007) Predictive model for dark matter, dark energy, neutrino masses, and leptogenesis at the TeV scale Physical Review D - Particles, Fields, Gravitation and Cosmology, 76 (4). 045014_1-045014_5. ISSN 1550-7998

Hill, C. T. ; Mocioiu, I. ; Paschos, E. A. ; Sarkar, U. (2007) Neutrino phenomenology, dark energy and leptogenesis from pseudo-Nambu-Goldstone bosons Physics Letters B, 651 (2-3). pp. 188-194. ISSN 0370-2693

Sarkar, Utpal ; Singh, Santosh K. (2007) CP violation in neutrino mass matrix Nuclear Physics B, 771 (1-2). pp. 28-39. ISSN 0550-3213

Majee, Swarup Kumar ; Parida, Mina K. ; Raychaudhuri, Amitava ; Sarkar, Utpal (2007) Low intermediate scales for leptogenesis in supersymmetric SO(10) grand unified theories Physical Review D - Particles, Fields, Gravitation and Cosmology, 75 (7). 075003_1-075003_14. ISSN 1550-7998

Ma, Ernest ; Sahu, Narendra ; Sarkar, Utpal (2007) Low-energy thermal leptogenesis in an extended NMSSM model Journal of Physics G: Nuclear and Particle Physics, 34 (4). pp. 741-752. ISSN 0954-3899

Hirsch, M. ; W., J. ; Malinský, M. ; Romão, J. C. ; Sarkar, U. (2007) Thermal leptogenesis in extended supersymmetric seesaw model Physical Review D - Particles, Fields, Gravitation and Cosmology, 75 (1). 011701_1-011701_4. ISSN 1550-7998

Sarkar, Utpal (2007) Anomaly for model building International Journal of Modern Physics A, 22 (5). pp. 931-936. ISSN 0217-751X

Sahu, Narendra ; Sarkar, Utpal (2006) Leptogenesis bound on neutrino masses in left-right symmetric models with spontaneous D-parity violation Physical Review D - Particles, Fields, Gravitation and Cosmology, 74 (9). 093002 _1-093002 _14. ISSN 1550-7998

Bhattacharya, Kaushik ; Sahu, Narendra ; Sarkar, Utpal ; Singh, Santosh K. (2006) Leptogenesis and low energy CP phases with two heavy neutrinos Physical Review D - Particles, Fields, Gravitation and Cosmology, 74 (9). 093001 _1-093001 _12. ISSN 1550-7998

Ma, Ernest ; Sahu, Narendra ; Sarkar, Utpal (2006) Leptogenesis below the Davidson-Ibarra bound Journal of Physics G: Nuclear and Particle Physics, 32 (11). L65-L68. ISSN 0954-3899

Ma, Ernest ; Sarkar, Utpal (2006) Connecting dark energy to neutrinos with an observable Higgs triplet Physics Letters B, 638 (4). pp. 356-358. ISSN 0370-2693

Desai, Bipin R. ; Rajasekaran, G. ; Sarkar, Utpal (2005) An SO(10) GUT with see-saw masses for all fermions Physics Letters B, 626 (1-4). pp. 167-174. ISSN 0370-2693

Sarkar, Utpal (2005) Minimal supersymmetric SO(10) GUT with only doublet Higgs Physics Letters B, 622 (1-2). pp. 118-123. ISSN 0370-2693

Sarkar, Utpal (2005) Split supersymmetry in an orbifold GUT Physical Review D - Particles, Fields, Gravitation and Cosmology, 72 (3). 035002_1-035002_5. ISSN 1550-7998

Sarkar, Utpal (2004) Parity in left-right symmetric models Physics Letters B, 594 (3-4). pp. 308-314. ISSN 0370-2693

Pal, Palash B. ; Sarkar, Utpal (2003) Gauged B-3L_τ, low-energy unification and proton decay Physics Letters B, 573 . pp. 147-152. ISSN 0370-2693

Brahmachari, Biswajoy ; Ma, Ernest ; Sarkar, Utpal (2003) Left-right model of quark and lepton masses without a scalar bidoublet Physical Review Letters, 91 (1). 011801_1-011801_4. ISSN 0031-9007

Klapdor-Kleingrothaus, H. V. ; Sarkar, Utpal (2003) Neutrinoless double beta decay with scalar bilinears Physics Letters B, 554 (1-2). pp. 45-50. ISSN 0370-2693

Klapdor-Kleingrothaus, H. V. ; Sarkar, U. (2003) Consequences of neutrinoless double beta decay and WMAP Modern Physics Letters A, 18 (32). pp. 2243-2254. ISSN 0217-7323

Klapdor-Kleingrothaus, H. V. ; Sarkar, U. (2002) Majorana neutrinos with split fermions in extra dimensions Physics Letters B, 541 (3-4). pp. 332-337. ISSN 0370-2693

Klapdor-Kleingrothaus, H. V. ; Sarkar, U. (2002) Neutrino mixing schemes and neutrinoless double beta decay Physics Letters B, 532 (1-2). pp. 71-76. ISSN 0370-2693

Klapdor-Kleingrothaus, H. V. ; Ma, Ernest ; Sarkar, Utpal (2002) Baryon and Lepton number violation with scalar bilinears Modern Physics Letters A, 17 (33). pp. 2221-2228. ISSN 0217-7323

Panigrahi, Prasanta K. ; Sarkar, Utpal (2002) Nuclear devices and basic neutrino-oscillation research Modern Physics Letters A, 17 (29). pp. 1893-1897. ISSN 0217-7323

Ma, Ernest ; Raidal, Martti ; Sarkar, Utpal (2001) Phenomenology of the neutrino-mass-giving Higgs triplet and the low-energy seesaw violation of lepton number Nuclear Physics B, 615 (1-3). pp. 313-330. ISSN 0550-3213

Brahmachari, Biswajoy ; Ma, Ernest ; Sarkar, Utpal (2001) Supersymmetric model of neutrino mass and leptogenesis with string-scale unification Physics Letters B, 520 (1-2). pp. 152-158. ISSN 0370-2693

Hambye, Thomas ; Ma, Ernest ; Raidal, Martti ; Sarkar, Utpal (2001) Allowable low-energy E₆ subgroups from leptogenesis Physics Letters B, 512 (3-4). pp. 373-378. ISSN 0370-2693

Hambye, Thomas ; Ma, Ernest ; Sarkar, Utpal (2001) Supersymmetric triplet Higgs model of neutrino masses and leptogenesis Nuclear Physics B, 602 (1-2). pp. 23-38. ISSN 0550-3213

Ma, Ernest ; Raidal, Martti ; Sarkar, Utpal (2001) Low-scale axion from large extra dimensions Physics Letters B, 504 (4). pp. 296-300. ISSN 0370-2693

Liu, Yong ; Sarkar, Utpal (2001) CP violation in neutrino mixing matrix and leptogenesis Modern Physics Letters A, 16 (9). pp. 603-613. ISSN 0217-7323

Klapdor-Kleingrothaus, H. V. ; Sarkar, U. (2001) Implications of observed neutrinoless double beta decay Modern Physics Letters A, 16 (38). pp. 2469-2482. ISSN 0217-7323

Ray, Asim K. ; Sarkar, Utpal (2001) Neutrino mass matrices in models with horizontal symmetries Modern Physics Letters A, 16 (36). pp. 2345-2352. ISSN 0217-7323

Ma, Ernest ; Rajasekaran, G. ; Sarkar, Utpal (2000) Light sterile neutrinos from large extra dimensions Physics Letters B, 495 (3-4). pp. 363-368. ISSN 0370-2693

Hambye, Thomas ; Ma, Ernest ; Sarkar, Utpal (2000) Leptogenesis from neutralino decay with nonholomorphic R-parity violation Nuclear Physics B, 590 (3). pp. 429-452. ISSN 0550-3213

Demir, D. A. ; Ma, Ernest ; Sarkar, Utpal (2000) Neutrino masses and the gluino axion model Journal of Physics G: Nuclear and Particle Physics, 26 (11). L117-L121. ISSN 0954-3899

Ma, Ernest ; Raidal, Martti ; Sarkar, Utpal (2000) Verifiable model of neutrino masses from large extra dimensions Physical Review Letters, 85 (18). pp. 3769-3772. ISSN 0031-9007

Klapdor-Kleingrothaus, H. V. ; Päs, H. ; Sarkar, U. (2000) Confronting dilaton-exchange gravity with experiments Physics Letters B, 488 (3-4). pp. 398-401. ISSN 0370-2693

Klapdor-Kleingrothaus, H. V. ; Kolb, St. ; Sarkar, U. (2000) Neutrino majorana mass and baryon number of the universe below the electroweak symmetry breaking scale Physics Letters B, 487 (3-4). pp. 289-293. ISSN 0370-2693

Kang, Kyungsik ; Kang, Sin Kyu ; Sarkar, Utpal (2000) Lepton flavor mixing and Baryogenesis Physics Letters B, 486 (3-4). pp. 391-399. ISSN 0370-2693

Hambye, Thomas ; Ma, Ernest ; Sarkar, Utpal (2000) Leptogenesis from R parity nonconservation Physical Review D - Particles, Fields, Gravitation and Cosmology, 62 (1). 015010_1-015010_4. ISSN 1550-7998

Klapdor-Kleingrothaus, H. V. ; Päs, H. ; Sarkar, U. (2000) Effects of new gravitational interactions on neutrinoless double beta decay Physics Letters B, 478 (1-3). pp. 269-274. ISSN 0370-2693

Sarkar, Utpal (2000) Models of neutrino masses and baryogenesis Pramana - Journal of Physics, 54 (1). pp. 101-118. ISSN 0304-4289

Liu, Yong ; Sarkar, Utpal (2000) About the mixing and CP violation in neutrino system Communications in Theoretical Physics, 34 . pp. 289-294. ISSN 0253-6102

Klapdor-Kleingrothaus, H. V. ; Päs, H. ; Sarkar, U. (2000) Effects of quantum space time foam in the neutrino sector European Physical Journal A (EPJ A), The - Hadrons and Nuclei, 8 (4). pp. 577-580. ISSN 1434-6001

Ma, Ernest ; Raidal, Martti ; Sarkar, Utpal (1999) Baryogenesis with scalar bilinears Physical Review D - Particles, Fields, Gravitation and Cosmology, 60 (7). 076005_1-076005_4. ISSN 1550-7998

Ma, Ernest ; Raidal, Martti ; Sarkar, Utpal (1999) Neutrino masses in supersymmetry: R-parity and leptogenesis Physics Letters B, 460 (3-4). pp. 359-364. ISSN 0370-2693

Delepine, David ; Sarkar, Utpal (1999) Gravitino constraints on models of neutrino masses and leptogenesis Physical Review D - Particles, Fields, Gravitation and Cosmology, 60 (5). 055005_1-055005_4. ISSN 1550-7998

Ma, Ernest ; Sarkar, Subir ; Sarkar, Utpal (1999) Scale of SU(2)_R symmetry breaking and leptogenesis Physics Letters B, 458 (1). pp. 73-78. ISSN 0370-2693

Sarkar, Utpal (1999) Degenerate Dirac neutrinos Physical Review D - Particles, Fields, Gravitation and Cosmology, 59 (3). 037302_1-037302_4. ISSN 1550-7998

Sarkar, Utpal (1999) Naturally light sterile neutrinos Physical Review D - Particles, Fields, Gravitation and Cosmology, 59 (3). 031301_1-031301_4. ISSN 1550-7998

Sarkar, Saswati ; Ray, Asim K. ; Sarkar, Utpal (1999) Constraints on the SU(5)_c×₁5;SU(2)_L×U(1)' model lep data International Journal of Modern Physics A, 14 (7). pp. 1049-1060. ISSN 0217-751X

Ma, E. ; Raidal, M. ; Sarkar, U. (1999) Probing the exotic particle content beyond the standard model European Physical Journal C (EPJ C), The - Particles and Fields, 8 (2). pp. 301-309. ISSN 1434-6044

Faridani, J. ; Lola, S. ; O'Donnell, P. J. ; Sarkar, U. (1999) Scale of leptogenesis European Physical Journal C (EPJ C), The - Particles and Fields, 7 (3). pp. 543-549. ISSN 1434-6044

Klapdor-Kleingrothaus, H. V. ; Päs, H. ; Sarkar, U. (1999) Test of special relativity and equivalence principle from neutrinoless double beta decay European Physical Journal A (EPJ A), The - Hadrons and Nuclei, 5 (1). pp. 3-6. ISSN 1434-6001

Mohanty, Subhendra ; Roy, D. P. ; Sarkar, Utpal (1998) Texture of a four-neutrino mass matrix Physics Letters B, 445 (1-2). pp. 185-190. ISSN 0370-2693

Ma, Ernest ; Roy, D. P. ; Sarkar, Utpal (1998) A see-saw model for atmospheric and solar neutrino oscillations Physics Letters B, 444 (3-4). pp. 391-396. ISSN 0370-2693

Sarkar, Utpal ; Vaidya, Rishikesh (1998) CP-violation in the mass matrix of heavy neutrinos Physics Letters B, 442 (1-4). pp. 243-248. ISSN 0370-2693

Ma, Ernest ; Sarkar, Utpal (1998) Gauged B-3L_τ and baryogenesis Physics Letters B, 439 (1-2). pp. 95-102. ISSN 0370-2693

Mohanty, Subhendra ; Sarkar, Utpal (1998) Constraints on background torsion field from K-physics Physics Letters B, 433 (3-4). pp. 424-428. ISSN 0370-2693

Ma, Ernest ; Sarkar, Utpal (1998) Neutrino masses and leptogenesis with heavy Higgs triplets Physical Review Letters, 80 (26). pp. 5716-5719. ISSN 0031-9007

Hambye, T. ; Mann, R. B. ; Sarkar, U. (1998) Test of special relativity and equivalence principle from K physics Physical Review D - Particles, Fields, Gravitation and Cosmology, 58 (2). 025003_1-025003_8. ISSN 1550-7998

Adhikari, Rathin ; Sarkar, Utpal (1998) Baryogenesis in a supersymmetric model without R-parity Physics Letters B, 427 (1-2). pp. 59-64. ISSN 0370-2693

Hambye, T. ; Mann, R. B. ; Sarkar, U. (1998) Test of special relativity from K physics Physics Letters B, 421 (1-4). pp. 105-108. ISSN 0370-2693

Sarkar, Utpal ; Adhikari, Rathin (1997) Baryogenesis through R-parity violation Physical Review D - Particles, Fields, Gravitation and Cosmology, 55 (6). pp. 3836-3843. ISSN 1550-7998

Sarkar, Utpal (1997) Electroweak baryogenesis and constraints on left-handed Majorana neutrino masses Physics Letters B, 390 (1-4). pp. 97-100. ISSN 0370-2693

Brahmachari, Biswajoy ; O'Donnell, Patrick J. ; Sarkar, Utpal (1997) A model for the three lepton decay mode of the proton Zeitschrift für Physik C: Particles and Fields, 74 (1). pp. 171-178. ISSN 0170-9739

Flanz, Marion ; Paschos, Emmanuel A. ; Sarkar, Utpal ; Weiss, Jan (1996) Baryogenesis through mixing of heavy Majorana neutrinos Physics Letters B, 389 (4). pp. 693-699. ISSN 0370-2693

Ganguly, Avijit ; Parikh, Jitendra C. ; Sarkar, Utpal (1996) Low energy leptogenesis in left-right symmetric models Physics Letters B, 385 (1-4). pp. 175-180. ISSN 0370-2693

Mann, R. B. ; Sarkar, U. (1996) Test of the equivalence principle from neutrino oscillation experiments Physical Review Letters, 76 (6). pp. 865-868. ISSN 0031-9007

Paschos, Emmanuel A. ; Sarkar, Utpal ; So, Hiroto (1995) Baryon and lepton number assignment in E₆ models Physical Review D - Particles, Fields, Gravitation and Cosmology, 52 (3). pp. 1701-1705. ISSN 1550-7998

O'Donnell, Patrick J. ; Sarkar, Utpal (1995) Neutrinoless double β decay and CP violation Physical Review D - Particles, Fields, Gravitation and Cosmology, 52 (3). pp. 1720-1721. ISSN 1550-7998

Datta, Alakabha ; Pakvasa, Sandip ; Sarkar, Uptal (1995) Gravitational uncertainties from dimension-six operators on supersymmetric GUT predictions Physical Review D - Particles, Fields, Gravitation and Cosmology, 52 (1). pp. 550-552. ISSN 1550-7998

Bhowmick, Debasis ; Bandyopadhyay, Krishnanath ; Ray, Asim K. ; Sarkar, Utpal (1995) Bounds on the Z' mass and mixing angles in the ununified gauge models Physical Review D - Particles, Fields, Gravitation and Cosmology, 51 (5). pp. 2118-2124. ISSN 1550-7998

Flanz, Marion ; Paschos, Emmanuel A. ; Sarkar, Utpal (1995) Baryogenesis from a lepton asymmetric universe Physics Letters B, 345 (3). pp. 248-252. ISSN 0370-2693

Datta, Alakabha ; Pakvasa, Sandip ; Sarkar, Utpal (1994) Corrections to mass scale predictions in SO(10) grand unified theory with higher dimensional operators Physical Review D - Particles, Fields, Gravitation and Cosmology, 50 (3). pp. 2192-2198. ISSN 1550-7998

Pal, Palash B. ; Sarkar, Utpal (1994) Proton decay and related processes models with gauged baryon number Physical Review D - Particles, Fields, Gravitation and Cosmology, 49 (7). pp. 3721-3733. ISSN 1550-7998

O'Donnell, Patrick J. ; Sarkar, Utpal (1994) Baryogenesis via lepton-number-violating scalar interactions Physical Review D - Particles, Fields, Gravitation and Cosmology, 49 (4). pp. 2118-2121. ISSN 1550-7998

Sarkar, Utpal (1993) LEP constraints on grand unified theories Pramana - Journal of Physics, 41 (Suppl. 1). pp. 261-269. ISSN 0304-4289

Acker, Andy ; Kikuchi, Hisashi ; Ma, Ernest ; Sarkar, Utpal (1993) CP violation and leptogenesis Physical Review D - Particles, Fields, Gravitation and Cosmology, 48 (10). pp. 5006-5008. ISSN 1550-7998

O'Donnell, Patrick J. ; Sarkar, Utpal (1993) Three lepton decay modes of the proton Physics Letters B, 316 (1). pp. 121-126. ISSN 0370-2693

Datta, Alakabha ; Pakvasa, Sandip ; Sarkar, Utpal (1993) Higher dimensional operators and low energy left-right symmetry Physics Letters B, 313 (1-2). pp. 83-88. ISSN 0370-2693

Sarkar, Saswati ; Bandyopadhyay, Krishnanath ; Ray, Asim K. ; Sarkar, Utpal (1993) Distinguishability of superstring E₆-inspired low-energy models and SU(5)_c color model Physical Review D - Particles, Fields, Gravitation and Cosmology, 47 (9). pp. 3768-3774. ISSN 1550-7998

Bhattacharyya, Gautam ; Datta, Amitava ; Raychaudhuri, Amitava ; Sarkar, Utpal (1993) New bound on right-handed charged gauge boson mass Physical Review D - Particles, Fields, Gravitation and Cosmology, 47 (9). R3693-R3696. ISSN 1550-7998

Brahmachari, Biswajoy ; Sarkar, Uptal (1993) Implications of supersymmetric SU(15) grand unification Physics Letters B, 303 (3-4). pp. 260-264. ISSN 0370-2693

Sarkar, Utpal (1993) 17-keV neutrino in a Zee-type model Physical Review D - Particles, Fields, Gravitation and Cosmology, 47 (3). pp. 1114-1116. ISSN 1550-7998

Brahmachari, Biswajoy ; Patra, P. K. ; Sarkar, Utpal ; Sridhar, K. (1993) Higher-dimensional operators to the rescue of minimal SU(5) Modern Physics Letters A, 8 (16). pp. 1487-1494. ISSN 0217-7323

Brahmachari, Biswajoy ; Sarkar, Utpal ; Sridhar, K. (1993) Non-perturbative unification in the light of LEP results Modern Physics Letters A, 8 (35). pp. 3349-3354. ISSN 0217-7323

Brahmachari, Biswajoy ; Sarkar, Utpal ; Sridhar, K. (1992) Ruling out low energy left-right symmetry in unified theories Physics Letters B, 297 (1-2). pp. 105-110. ISSN 0370-2693

Bandyopadhyay, Krishnanath ; Bhowmick, Debasis ; Ray, Asim K. ; Sarkar, Utpal (1992) Distinguishability of some ununified models Physical Review D - Particles, Fields, Gravitation and Cosmology, 46 (3). pp. 914-920. ISSN 1550-7998

Choudhury, Debajyoti ; Sarkar, Utpal (1992) Neutrino magnetic moment and a 17-keV ν_τ Physical Review Letters, 68 (19). pp. 2875-2878. ISSN 0031-9007

Brahmachari, Biswajoy ; Sarkar, Utpal ; Mann, Robert B. ; Steele, Tom G. (1992) Higgs effect in SU(15) grand unified theory Physical Review D - Particles, Fields, Gravitation and Cosmology, 45 (7). pp. 2467-2470. ISSN 1550-7998

Samal, Manoj K. ; Sarkar, Utpal (1992) Symmetric Cabibbo-Kobayashi-Maskawa matrix and quark mass matrices Physical Review D - Particles, Fields, Gravitation and Cosmology, 45 (7). pp. 2421-2426. ISSN 1550-7998

Choudhury, D. ; O'Donnell, P. J. ; Sarkar, U. (1992) Magnetic moments and the structure function of the proton Zeitschrift für Physik C Particles and Fields, 54 (2). pp. 307-309. ISSN 0170-9739

Samal, Manoj K. ; Choudhury, Debajyoti ; Sarkar, Utpal ; Mann, Robert B. (1991) Top-quark mass and a symmetric Cabibbo-Kobayashi-Maskawa matrix Physical Review D - Particles, Fields, Gravitation and Cosmology, 44 (9). pp. 2860-2863. ISSN 1550-7998

Choudhury, Debajyoti ; Sarkar, Utpal (1991) A new mechnism to generate a 17 keV neutrino Physics Letters B, 268 (1). pp. 96-100. ISSN 0370-2693

Samal, Manoj K. ; Sarkar, Utpal (1991) 17 keV nondegenerate Majorana neutrino and neutrino mixing Physics Letters B, 267 (2). pp. 243-248. ISSN 0370-2693

Blundell, H. G. ; Mann, R. B. ; Sarkar, U. (1991) Generalized two-angle parametrization of the Cabibbo-Kobayashi-Maskawa matrix Physical Review D - Particles, Fields, Gravitation and Cosmology, 43 (7). pp. 2386-2390. ISSN 1550-7998

Bagan, E. ; Mann, R. B. ; Steele, T. G. ; Sarkar, U. (1991) Renormalization-group evolution of the gluonic CP-violating operator Physical Review D - Particles, Fields, Gravitation and Cosmology, 43 (7). pp. 2233-2235. ISSN 1550-7998

Sarkar, U. ; Zheng, H. B. ; Leblanc, M. ; Mann, R. B. (1991) On the Yukawa couplings of N=2 superconformal theories Physics Letters B, 256 (2). pp. 179-184. ISSN 0370-2693

Bandyopadhyay, Krishnanath ; Choudhury, Debajyoti ; Sarkar, Utpal (1991) Neutrino mass matrices in horizontal models Physical Review D - Particles, Fields, Gravitation and Cosmology, 43 (5). pp. 1646-1651. ISSN 1550-7998

Choudhury, Debajyoti ; Sarkar, Utpal (1990) Naturally light Majorana neutrinos with no neutrinoless double-β decay Physical Review D - Particles, Fields, Gravitation and Cosmology, 41 (5). pp. 1591-1594. ISSN 1550-7998

Choudhury, Debajyoti ; Sarkar, Utpal (1990) Large magnetic moments for near massless neutrinos Physics Letters B, 235 (1-2). pp. 113-116. ISSN 0370-2693

Sarkar, Utpal (1989) Isospin breaking in superstring-inspired E₆ model Physical Review D - Particles, Fields, Gravitation and Cosmology, 40 (1). pp. 170-172. ISSN 1550-7998

Choudhury, Debajyoti ; Sarkar, Utpal (1989) Model-independent analysis of quark mass matrices Physical Review D - Particles, Fields, Gravitation and Cosmology, 39 (11). pp. 3425-3434. ISSN 1550-7998

Choudhury, Debajyoti ; Sarkar, Utpal (1989) B---B̅ mixing, ε'/ε and quark mass matrices Physics Letters B, 217 (3). pp. 341-346. ISSN 0370-2693

Sarkar, Utpal ; Mann, Robert B. (1988) Neutrino masses in superstring theories with intermediate scales International Journal of Modern Physics A, 3 (9). pp. 2165-2173. ISSN 0217-751X

Joshipura, Anjan S. ; Sarkar, Utpal (1987) Economic models for Dirac neutrinos in grand unified theories Pramana - Journal of Physics, 29 (3). pp. 247-251. ISSN 0304-4289

Sarkar, Utpal (1987) Pseudo-Dirac solar neutrinos? Physical Review D - Particles, Fields, Gravitation and Cosmology, 35 (4). pp. 1528-1530. ISSN 1550-7998

Mishra, Snigdha ; Misra, S. P. ; Panda, Sudhakar ; Sarkar, Utpal (1987) Light Dirac neutrino in left-right-symmetric models Physical Review D - Particles, Fields, Gravitation and Cosmology, 35 (3). pp. 975-983. ISSN 1550-7998

Govindarajan, T. R. ; Joshipura, Anjan S. ; Rindani, Saurabh D. ; Sarkar, Utpal (1987) Coset spaces as alternatives to calabi-yau spaces in the presence of gaugino condensation International Journal of Modern Physics A, 2 (3). pp. 797-829. ISSN 0217-751X

Govindarajan, T. R. ; Joshipura, Anjan S. ; Rindani, Saurabh D. ; Sarkar, Utpal (1986) Supersymmetric compactification of the heterotic string on coset spaces Physical Review Letters, 57 (20). pp. 2489-2492. ISSN 0031-9007

Joshipura, Anjan S. ; Sarkar, Utpal (1986) Phenomenologically consistent discrete symmetries in superstring theories Physical Review Letters, 57 (1). pp. 33-36. ISSN 0031-9007

Bandyopadhyay, Krishnanath ; Ray, Asim K. ; Sarkar, Utpal (1986) Discriminating horizontal symmetries from operator analysis and proton-decay experiments Physical Review D - Particles, Fields, Gravitation and Cosmology, 33 (11). pp. 3293-3305. ISSN 1550-7998

Gupta, V. ; Mani, H. S. ; Sarkar, U. (1986) Supersymmetric preon models with three-fermion generations Pramana - Journal of Physics, 26 (4). pp. 311-315. ISSN 0304-4289

Nandi, S. ; Sarkar, U. (1986) Solution to the neutrino-mass problem in superstring E₆ theory Physical Review Letters, 56 (6). pp. 564-567. ISSN 0031-9007

Chiu, Charles B. ; Nandi, S. ; Sarkar, U. (1985) Unitarity constraints on the nondegenerate-majorana-neutrino model Physical Review Letters, 55 (19). p. 2089. ISSN 0031-9007

Joshipura, Anjan S. ; Mukherjee, Amitabha ; Sarkar, Utpal (1985) Light Dirac neutrinos in N=1 locally supersymmetric SU(5) GUT Physics Letters B, 156 (5-6). pp. 353-356. ISSN 0370-2693

Sarkar, U. (1985) Backward hierarchy and susy SO(10) GUT Physics Letters B, 156 (1-2). pp. 61-65. ISSN 0370-2693

Joshipura, Anjan S. ; Ramachandran, B. ; Sarkar, U. (1985) Compositeness versus elementarity in N=2 SUSY theory Physics Letters B, 153 (1-2). pp. 40-44. ISSN 0370-2693

Bandyopadhyay, Krishnanath ; Ray, Asim K. ; Sarkar, Utpal (1985) Strangeness changing baryon nonconservation in nonsupersymmetric theories Physics Letters B, 151 (2). pp. 132-134. ISSN 0370-2693

Joshipura, A. S. ; Roy, Probir ; Shanker, O. ; Sarkar, Utpal (1985) Superunified model with naturally ultralight Dirac neutrinos Physics Letters B, 150 (4). pp. 270-276. ISSN 0370-2693

Godbole, R. M. ; Sarkar, U. ; Shanker, O. (1984) Low energy constraints on N=2 supersymmetric models Physics Letters B, 142 (4). pp. 286-290. ISSN 0370-2693

Panda, Sudhakar ; Sarkar, Utpal (1984) Light Dirac neutrinos and mirror fermions Physics Letters B, 139 (1-2). pp. 42-44. ISSN 0370-2693

Majumdar, Parthasarathi ; Raychaudhuri, Amitava ; Sarkar, Utpal (1984) Are neutron-antineutron oscillations allowed in supersymmetric grand unified theories? Physics Letters B, 137 (3-4). pp. 181-186. ISSN 0370-2693

Sarkar, Utpal ; Ray, Asim K. (1984) Testing horizontal gauge symmetries from nucleon-decay experiments Physical Review D - Particles, Fields, Gravitation and Cosmology, 29 (1). pp. 166-168. ISSN 1550-7998

Pati, Jogesh C. ; Salam, Abdus ; Sarkar, Utpal (1983) ΔB=−ΔL, Neutron →e⁻π⁺, e⁻K⁺, μ⁻π⁺ and μ⁻K⁺ decay modes in SU(2)_L×SU(2)_R×SU(4)^col or SO(10) Physics Letters B, 133 (5). pp. 330-336. ISSN 0370-2693

Misra, S. P. ; Sarkar, Utpal (1983) n-n̅ oscillation, H-H̅ oscillation, and the double proton decay: are they suppressed by wave-function effects? Physical Review D - Particles, Fields, Gravitation and Cosmology, 28 (1). pp. 249-251. ISSN 1550-7998

Hazra, C. C. ; Parida, M. K. ; Sarkar, Utpal (1983) Are n-n̅ oscillation and proton decay mutually exclusive? Physics Letters B, 123 (6). pp. 413-416. ISSN 0370-2693

Sarkar, Uptal ; Misra, S. P. ; Parida, M. K. (1983) Hydrogen-antihydrogen oscillations: signature of intermediate mass scales in GUTs Physics Letters B, 120 (1-3). pp. 124-126. ISSN 0370-2693

Raychaudhuri, Amitava ; Sarkar, Utpal (1982) Low-energy restoration of parity and maximal symmetry Physical Review D - Particles, Fields, Gravitation and Cosmology, 26 (11). pp. 3212-3220. ISSN 1550-7998

Sarkar, U. ; Raychaudhuri, A. (1982) Static solutions of Yang-Mills equations with external sources Physical Review D - Particles, Fields, Gravitation and Cosmology, 26 (10). pp. 2804-2813. ISSN 1550-7998

Sarkar, U. (1982) B-L non-conserving proton decay in guts Physics Letters B, 114 (4). pp. 239-242. ISSN 0370-2693

Raychaudhuri, A. ; Sarkar, U. (1981) New solutions of Yang-Mills equations with static external sources Physics Letters B, 102 (6). pp. 421-425. ISSN 0370-2693