Home > LHCb Collection > LHCb Preprints > Curious Link of Exclusive and Inclusive CPV in Charmless 3-body B$^+$ Decays |
Article | |
Report number | arXiv:1911.06966 |
Title | Curious Link of Exclusive and Inclusive CPV in Charmless 3-body B$^+$ Decays |
Author(s) | Hou, George W.-S. (Taiwan, Natl. Taiwan U.) |
Publication | 2020 |
Imprint | 2019-11-16 |
Number of pages | 12 |
Note | 12 pages, 7 figures, to appear in proceedings of HADRON2019, held August 2019 in Guilin, China |
In: | XVIII International Conference on Hadron Spectroscopy and Structure, Guilin, China, 16 - 21 Aug 2019, pp.358-369 |
DOI | 10.1142/9789811219313_0060 |
Subject category | hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology |
Accelerator/Facility, Experiment | CERN LHC ; LHCb |
Abstract | The LHCb experiment has measured CP violation (CPV) across the Dalitz plot of charmless decays of B+ mesons to 3 charged tracks, namely in K{\pi}{\pi}, KKK, {\pi}{\pi}{\pi} and {\pi}KK final states, with strikingly large CPV that vary strongly with Dalitz variables. Identifying these processes with b -> sqq(bar), sss(bar) and b -> dqq(bar), dss(bar), where q = u, d, then the "sum rule" that requires two-loop absorptive parts by unitarity works well for inclusive b -> s CPV, but less well for inclusive b -> d case. We elucidate the situation, and argue that the 30 year old unitarity/CPT argument is valid to this day, while affirming quark-hadron duality. |
Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) |