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Signatures of CP violation in the presence of multiple b-pair production at hadron colliders

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dc.creator Halzen, Francis
dc.creator González García, Ma. Concepción
dc.creator Stelzer, T.
dc.creator Vázquez, R. A.
dc.date 2010-05-06T12:20:28Z
dc.date 2010-05-06T12:20:28Z
dc.date 1995
dc.date.accessioned 2024-12-16T10:23:41Z
dc.date.available 2024-12-16T10:23:41Z
dc.identifier 0556-2821
dc.identifier http://hdl.handle.net/2445/12494
dc.identifier 551516
dc.identifier.uri http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/16396
dc.description 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.
dc.format 6 p.
dc.format application/pdf
dc.language eng
dc.publisher The American Physical Society
dc.relation Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.51.4861
dc.relation Physical Review D, 1995, vol. 51, núm. 9, p. 4861-4866
dc.relation http://dx.doi.org/10.1103/PhysRevD.51.4861
dc.rights (c) The American Physical Society, 1995
dc.rights info:eu-repo/semantics/openAccess
dc.source Articles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject Fenomenologia (Física)
dc.subject Violació càrrega-paritat (Física nuclear)
dc.subject Partícules (Matèria)
dc.subject Acceleradors de partícules
dc.subject Col·lisions (Física nuclear)
dc.subject Phenomenological theory (Physics)
dc.subject CP violation (Nuclear physics)
dc.subject Particles (Nuclear physics)
dc.subject Particle accelerators
dc.subject Collisions (Nuclear physics)
dc.title Signatures of CP violation in the presence of multiple b-pair production at hadron colliders
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion


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