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

Bibliografiska uppgifter
Parent link:Physical Review Letters
Vol. 126, iss. 9.— 2021.— [091802, 11 p.]
Institutionella upphovsmän: Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники, Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Övriga upphovsmän: 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
Sammanfattning: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.
Språk:engelska
Publicerad: 2021
Ämnen:
электронный ресурс
труды учёных ТПУ
Länkar:https://doi.org/10.1103/PhysRevLett.126.091802
Materialtyp: Elektronisk Bokavsnitt
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664708
Beskrivning
Sammanfattning: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.
DOI:10.1103/PhysRevLett.126.091802

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