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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 http://dx.doi.org/10.1103/PhysRevD.51.4861 |
It is part of: | Physical Review D, 1995, vol. 51, núm. 9, p. 4861-4866 |
URI: | http://hdl.handle.net/2445/12494 |
Related resource: | http://dx.doi.org/10.1103/PhysRevD.51.4861 |
ISSN: | 0556-2821 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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