Observation of B0s→¯D*0ϕ and search for B0→¯D0ϕ decays; Physical Review D; Vol. 98, iss. 7

Observation of B0s→¯D*0ϕ and search for B0→¯D0ϕ decays; Physical Review D; Vol. 98, iss. 7

Bibliografske podrobnosti
Parent link:	Physical Review D: particles, fields, gravitation, and cosmology.— , 1970- Vol. 98, iss. 7.— 2018.— [071103, 10 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
Drugi avtorji:	Aaij R. Roel, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich, Vagner A. R. Aleksandr Rudolfovich
Izvleček:	Title screen The first observation of the B0s→¯D0ϕ decay is reported, with a significance of more than seven standard deviations, from an analysis of pp collision data corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The branching fraction is measured relative to that of the topologically similar decay B0→¯D0π+π− and is found to be B(B0s→¯D0ϕ)=(3.7±0.5±0.3±0.2)×10−5, where the first uncertainty is statistical, the second systematic, and the third from the branching fraction of the B0→¯D0π+π− decay. The fraction of longitudinal polarization in this decay is measured to be fL=(73±15±4)%. The most precise determination of the branching fraction for the B0s→¯D0ϕ decay is also obtained, B(B0s→¯D0ϕ)=(3.0±0.3±0.2±0.2)×10−5. An upper limit, B(B0→¯D0ϕ)<2.0 (2.3)×10−6 at 90% (95%) confidence level is set. A constraint on the ω−ϕ mixing angle δ is set at \|δ\|<5.2° (5.5°) at 90% (95%) confidence level.
Jezik:	angleščina
Izdano:	2018
Teme:	электронный ресурс труды учёных ТПУ
Online dostop:	http://earchive.tpu.ru/handle/11683/57724 https://doi.org/10.1103/PhysRevD.98.071103
Format:	Elektronski Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658871

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