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Title: Signatures of CP violation in the presence of multiple b-pair production at hadron colliders
Author: Halzen, Francis
González García, Ma. Concepción
Stelzer, T.
Vázquez, R. A.
Keywords: Fenomenologia (Física)
Violació càrrega-paritat (Física nuclear)
Partícules (Matèria)
Acceleradors de partícules
Col·lisions (Física nuclear)
Phenomenological theory (Physics)
CP violation (Nuclear physics)
Particles (Nuclear physics)
Particle accelerators
Collisions (Nuclear physics)
Issue Date: 1995
Publisher: The American Physical Society
Abstract: We calculate the production of two b-quark pairs in hadron collisions. Sources of multiple pairs are multiple interactions and higher order perturbative QCD mechanisms. We subsequently investigate the competing effects of multiple b-pair production on measurements of CP violation: (i) the increase in event rate with multiple b-pair cross sections which may reach values of the order of 1 b in the presence of multiple interactions and (ii) the dilution of b versus b tagging efficiency because of the presence of events with four B mesons. The impact of multiple B-meson production is small unless the cross section for producing a single pair exceeds 1 mb. We show that even for larger values of the cross section the competing effects (i) and (ii) roughly compensate so that there is no loss in the precision with which CP-violating CKM angles can be determined.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review D, 1995, vol. 51, núm. 9, p. 4861-4866
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ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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