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High Energy Physics - Phenomenology

arXiv:1503.00737 (hep-ph)
[Submitted on 2 Mar 2015 (v1), last revised 27 Apr 2015 (this version, v2)]

Title:Using U Spin to Extract gamma from Charmless B -> PPP Decays

Authors:Bhubanjyoti Bhattacharya, David London
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Abstract:Some years ago, a method was proposed for measuring the CP-violating phase gamma using pairs of two-body decays that are related by U-spin reflection (d <-> s). In this paper we adapt this method to charmless B -> PPP decays. Time-dependent Dalitz-plot analyses of these three-body decays are required for the measurement of the mixing-induced CP asymmetries. However, isobar analyses of the decay amplitudes are not necessary. A potential advantage of using three-body decays is that the effects of U-spin breaking may be reduced by averaging over the Dalitz plot. This can be tested independently using the measurements of direct CP asymmetries and branching ratios in three-body charged B decays.
Comments: 16 pages, no figures; Revised text; Version accepted for publication in JHEP
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Report number: UdeM-GPP-TH-15-240
Cite as: arXiv:1503.00737 [hep-ph]
  (or arXiv:1503.00737v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1503.00737
Journal reference: JHEP04 (2015) 154
Related DOI: https://doi.org/10.1007/JHEP04%282015%29154

Submission history

From: Bhubanjyoti Bhattacharya [view email]
[v1] Mon, 2 Mar 2015 21:03:22 UTC (15 KB)
[v2] Mon, 27 Apr 2015 14:55:35 UTC (16 KB)
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