Inclusive and differential measurements of the charge asymmetry in proton-proton collisions at
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- 作者：CMS Collaboration ; S. Chatrchyan ; V. Khachatryan ; A.M. Sirunyan ; A. Tumasyan ; W. Adam ; E. Aguilo ; T. Bergauer ; M. Dragicevic ; J. Er? ; C. Fabjan ; M. Friedl ; R. Fr¨¹hwirth ; V.M. Ghete ; J. Hammer ; N. H?rmann ; J. Hrubec ; M. Jeitler ; W. Kiesenhofer ; V. Kn¨¹nz ; et al.
- 关键词：CMS ; Physics ; Top quark ; Asymmetry ; BSM
- 刊名：Physics Letters B
- 出版年：2012
- 出版时间：22 October, 2012
- 年：2012
- 卷：717
- 期：1-3
- 页码：129-150
- 全文大小：587 K
文摘
The charge asymmetry is measured in events containing a charged lepton (electron or muon) and at least four jets, one of which is identified as originating from b-quark hadronization. The analyzed dataset corresponds to an integrated luminosity of collected with the CMS detector at the LHC. An inclusive and three differential measurements of the charge asymmetry as a function of rapidity, transverse momentum, and invariant mass of the system are presented. The measured inclusive charge asymmetry is . This result and the three differential measurements are consistent with zero asymmetry as well as with the predictions of the standard model.