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Title:
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Signatures of CP violation in the presence of multiple b-pair production at hadron colliders
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Author:
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Halzen, Francis; González García, Ma. Concepción; Stelzer, T.; Vázquez, R. A.
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Other authors:
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Universitat de Barcelona |
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Abstract:
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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. |
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Subject(s):
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-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) |
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Rights:
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(c) The American Physical Society, 1995
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Document type:
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Article
Article - Published version |
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Published by:
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The American Physical Society
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