Chatrchyan, S. ; Khachatryan, V. ; Sirunyan, A. M. ; Tumasyan, A. ; Adam, W. ; Bergauer, T. ; Dragicevic, M. ; Mondal, N. K. ; Fabjan, C. ; et., al. (2011) Measurement of the inclusive Z cross section via decays to tau pairs in pp collisions at √s = 7 TeV Journal of High Energy Physics, 2011 (8). p. 117. ISSN 1126-6708
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Official URL: http://www.springerlink.com/content/c473630jm25647...
Related URL: http://dx.doi.org/10.1007/JHEP08(2011)117
Abstract
The first measurement of inclusive Z→t + t - production in pp collisions at the LHC is presented, in the final states μ+hadrons, e+hadrons, e+μ, and μ+μ. The data sample corresponds to an integrated luminosity of 36 pb-1 collected with the CMS detector. The measured cross section is s (pp→ZX)xB (Z→t + t - )=1.00±0.05(stat.)±0.08(syst.)±0.04(lumi.)nb, which is in good agreement with the next-to-next-to-leading order QCD prediction and improves on previous measurements in the Z→e+e- and μ +μ - channels. The reconstruction efficiency for hadronic t decays is determined with a precision of 7%.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| Keywords: | Hadron-Hadron Scattering |
| ID Code: | 89972 |
| Deposited On: | 04 May 2012 05:05 |
| Last Modified: | 04 May 2012 05:05 |
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