Model-Independent Observation of Exotic Contributions to B0→J/ψK+π− Decays

Model-Independent Observation of Exotic Contributions to B0→J/ψK+π− Decays

Bibliographic Details
Parent link:	Physical Review Letters Vol. 122, iss. 15.— 2019.— [152002, 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
Other Authors:	Aaij R. Roel, Beteta C. A. Carlos Abellan, Adeva B. Bernardo, Shapkin M. M. Mikhail Mikhaylovich, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich
Summary:	Title screen An angular analysis of B0→J/ψK+π− decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb detector. The m(K+π−) spectrum is divided into fine bins. In each m(K+π−) bin, the hypothesis that the three-dimensional angular distribution can be described by structures induced only by K∗ resonances is examined, making minimal assumptions about the K+π− system. The data reject the K∗-only hypothesis with a large significance, implying the observation of exotic contributions in a model-independent fashion. Inspection of the m(J/ψπ−) vs m(K+π−) plane suggests structures near m(J/ψπ−)=4200 and 4600 MeV.
Language:	English
Published:	2019
Subjects:	электронный ресурс труды учёных ТПУ
Online Access:	https://doi.org/10.1103/PhysRevLett.122.152002
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663334

Internet

https://doi.org/10.1103/PhysRevLett.122.152002