Search for excited B+c states; Journal of High Energy Physics; Vol. 2018, iss. 1

Search for excited B+c states; Journal of High Energy Physics; Vol. 2018, iss. 1

Bibliografiske detaljer
Parent link:Journal of High Energy Physics
Vol. 2018, iss. 1.— 2018.— [138, 18 p.]
Institution som forfatter: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Andre forfattere: Aaij R. Roel, Adeva B. Bernardo, Adinolfi M. Marco, Vagner A. R. Aleksandr Rudolfovich
Summary:Title screen
A search is performed in the invariant mass spectrum of the B+cπ+π− system for the excited B+c states B c (21S0)+ and B c (23S1)+ using a data sample of pp collisions collected by the LHCb experiment at the centre-of-mass energy of s√=8s=8 TeV, corresponding to an integrated luminosity of 2 fb−1. No evidence is seen for either state. Upper limits on the ratios of the production cross-sections of the B c (21S0)+ and B c (23S1)+ states times the branching fractions of B c (21S0)+ → B+cπ+π− and B c (23S1)+ → B*c+π+π− over the production cross-section of the B+c state are given as a function of their masses. They are found to be between 0.02 and 0.14 at 95% confidence level for B c (21S0)+ and B c (23S1)+ in the mass ranges [6830, 6890] MeV/c2 and [6795, 6890] MeV/c2, respectively.
Sprog:engelsk
Udgivet: 2018
Fag:
электронный ресурс
труды учёных ТПУ
B physics
Hadron-Hadron scattering (experiments)
spectroscopy
Online adgang:https://doi.org/10.1007/JHEP01(2018)138
Format: Electronisk Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664050

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