Measurement of CP asymmetry in D0→K0SK0S decays

Measurement of CP asymmetry in D0→K0SK0S decays

Bibliographic Details
Parent link:	Physical Review D: particles, fields, gravitation, and cosmology Vol. 104, iss. 3.— 2021.— [L031102, 11 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, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich
Summary:	Title screen A measurement of the CP asymmetry in D0→K0SK0S decays is reported, based on a data sample of proton-proton collisions collected by the LHCb experiment from 2015 to 2018, corresponding to an integrated luminosity of 6 fb−1. The flavor of the D0 candidate is determined using the charge of the D*± meson, from which the decay is required to originate. The D0→K+K− decay is used as a calibration channel. The time-integrated CP asymmetry for the D0→K0SK0S mode is measured to be ACP(D0→K0SK0S)=(−3.1±1.2±0.4±0.2), where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the CP asymmetry of the calibration channel. This is the most precise determination of this quantity to date.
Published:	2021
Subjects:	электронный ресурс труды учёных ТПУ
Online Access:	http://earchive.tpu.ru/handle/11683/72775 https://doi.org/10.1103/PhysRevD.104.L031102
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666716

Internet

http://earchive.tpu.ru/handle/11683/72775
https://doi.org/10.1103/PhysRevD.104.L031102