Joshipura, Anjan S. ; Ravindran, V. ; Vempati, Sudhir K. (1998) Charm-squark interpretation of the DESY HERA events Physical Review D - Particles, Fields, Gravitation and Cosmology, 57 (9). R5327-R5331. ISSN 1550-7998
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Official URL: http://prd.aps.org/abstract/PRD/v57/i9/pR5327_1
Related URL: http://dx.doi.org/10.1103/PhysRevD.57.R5327
Abstract
The charm squark resonance in the e+q channel provides one of the plausible interpretations of the reported anomaly at DESY HERA. We show that the relevant R violating coupling λ121' is required to be large, typically around 0.1 in a large class of supergravity based models including the minimal one with universal boundary conditions at the GUT scale. Existing constraints on these couplings are reanalyzed in this light and it is argued that such large couplings may be feasible, but would require fine tuned cancellations.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 67610 |
| Deposited On: | 31 Oct 2011 05:25 |
| Last Modified: | 31 Oct 2011 05:25 |
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