Search for CP violation and observation of P violation in Λ0b→pπ−π+π− decays; Physical Review D; Vol. 102, iss. 5

Search for CP violation and observation of P violation in Λ0b→pπ−π+π− decays

Bibliographic Details
Parent link:	Physical Review D: particles, fields, gravitation, and cosmology Vol. 102, iss. 5.— 2020.— [051101, 12 p.]
Corporate Authors:	Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники Отделение автоматизации и робототехники (ОАР), Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Other Authors:	Aaij R. Roel, Beteta C. A. Carlos Abellan, Ackernley T., Adeva B. Bernardo, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich
Summary:	Title screen A search for CP violation in the Λ0b→pπ−π+π− decay is performed using LHCb data corresponding to an integrated luminosity of 6.6 fb−1 collected in pp collisions at center-of-mass energies of 7, 8 and 13 TeV. The analysis uses both triple product asymmetries and the unbinned energy test method. The highest significances of CP asymmetry are 2.9 standard deviations from triple product asymmetries and 3.0 standard deviations for the energy test method. Once the global p-value is considered, all results are consistent with no CP violation. Parity violation is observed at a significance of 5.5 standard deviations for the triple product asymmetry method and 5.3 standard deviations for the energy test method. The reported deviations are given in regions of phase space.
Language:	English
Published:	2020
Subjects:	электронный ресурс труды учёных ТПУ
Online Access:	https://doi.org/10.1103/PhysRevD.102.051101
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664693

Internet

https://doi.org/10.1103/PhysRevD.102.051101