CP violation in multi-body charmless b-hadron decays at LHCb

被引：0

作者：

Morris, Adam ^{[1
]}

机构：

[1] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France

来源：

EUROPEAN PHYSICAL SOCIETY CONFERENCE ON HIGH ENERGY PHYSICS, EPS-HEP2019 | 2020年

关键词：

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Long-distance resonant dynamics along with a sizeable weak phase present in multi-body charmless b-hadron decays leads to rich structures of CP violation as a function of the phase space. Amplitude analysis provides a deeper understanding of the mechanisms that generate strong phase variations, which are responsible for this effect. We present the amplitude analyses of B+ -> pi+K+K- and B-s(0) -> (KsK +/-)-K-0 pi(-/+) decays. For the former, CP asymmetries of the contributing quasi-two-body resonances are measured. Charmless b-baryon decays represent a promising opportunity to make a first observation of CP violation in the baryonic sector. We also present the most recent measurements of four-body charmless b-baryon decays performed by LHCb.

引用

页数：8

共 14 条

[1]

Aaij R, 2017, NAT PHYS, V13, P391, DOI [10.1038/NPHYS4021, 10.1038/nphys4021]

[2] Observation of B0s → K* ± K∓ and evidence for B0s → K*- π+ decays [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Affolder, A. ;

Ajaltouni, Z. ;

Akar, S. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Ali, S. ;

Alkhazov, G. ;

Alvarez Cartelle, P. ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Anderson, J. ;

Andreassen, R. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Baalouch, M. ;

Bachmann, S. ;

Back, J. J. ;

Badalov, A. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Batozskaya, V. ;

Battista, V. ;

Bay, A. ;

Beaucourt, L. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. ;

Belogurov, S. ;

Belous, K. ;

Belyaev, I. ;

Ben-Haim, E. ;

Bencivenni, G. .

NEW JOURNAL OF PHYSICS, 2014, 16

[3] CP violation: Dalitz interference, CPT, and final state interactions [J].

Alvarenga Nogueira, J. H. ;

Bediaga, I. ;

Cavalcante, A. B. R. ;

Frederico, T. ;

Lourenco, O. .

PHYSICAL REVIEW D, 2015, 92 (05)

[4]

[Anonymous], 2018, JHEP

[5]

[Anonymous], 2017, JHEP

[6] A STUDY OF K-PI+ SCATTERING IN THE REACTION K-P-]K-PI+N AT 11 GEV/C [J].

ASTON, D ;

AWAJI, N ;

BIENZ, T ;

BIRD, F ;

DAMORE, J ;

DUNWOODIE, W ;

ENDORF, R ;

FUJII, K ;

HAYASHII, H ;

IWATA, S ;

JOHNSON, WB ;

KAJIKAWA, R ;

KUNZ, P ;

LEITH, DWGS ;

LEVINSON, L ;

MATSUI, T ;

MEADOWS, BT ;

MIYAMOTO, A ;

NUSSBAUM, M ;

OZAKI, H ;

PAK, CO ;

RATCLIFF, BN ;

SCHULTZ, D ;

SHAPIRO, S ;

SHIMOMURA, T ;

SINERVO, PK ;

SUGIYAMA, A ;

SUZUKI, S ;

TARNOPOLSKY, G ;

TAUCHI, T ;

TOGE, N ;

UKAI, K ;

WAITE, A ;

WILLIAMS, S .

NUCLEAR PHYSICS B, 1988, 296 (03) :493-526

[7]

LHCB collaboration, Measurement of DA CP in charmless four-body L 0 and X 0 decays, b b 1903.06792 LHCb- PAPER- 2018-044,

[8]

LHCB collaboration, 1905.09244LHCb-PAPER-2018-051, [1905.09244]

[9]

LHCB collaboration, 2014, Phys. Rev., V90

[10]

LHCB collaboration, 2018, JHEP, V08

← 1 2 →