Measurement of CP Violation in the Decay B+→K+π0; Physical Review Letters; Vol. 126, iss. 9

Measurement of CP Violation in the Decay B+→K+π0; Physical Review Letters; Vol. 126, iss. 9

Dettagli Bibliografici
Parent link:Physical Review Letters
Vol. 126, iss. 9.— 2021.— [091802, 11 p.]
Enti autori: 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
Altri autori: 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
Riassunto:Title screen
A measurement of CP violation in the decay B+→K+π0 is reported using data corresponding to an integrated luminosity of 5.4  fb−1 collected with the LHCb experiment at a center-of-mass energy of √s=13  TeV. The CP asymmetry is measured to be 0.025±0.015±0.006±0.003, where the uncertainties are statistical, systematic, and due to an external input. This is the most precise measurement of this quantity. It confirms and significantly enhances the observed anomalous difference between the direct CP asymmetries of the B0→K+π− and B+→K+π0 decays, known as the Kπ puzzle.
Lingua:inglese
Pubblicazione: 2021
Soggetti:
электронный ресурс
труды учёных ТПУ
Accesso online:https://doi.org/10.1103/PhysRevLett.126.091802
Natura: xMaterials Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664708

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