Measurement of fs/fu Variation with Proton-Proton Collision Energy and B-Meson Kinematics; Physical Review Letters; Vol. 124, iss. 12

Measurement of fs/fu Variation with Proton-Proton Collision Energy and B-Meson Kinematics; Physical Review Letters; Vol. 124, iss. 12

מידע ביבליוגרפי
Parent link:Physical Review Letters
Vol. 124, iss. 12.— 2020.— [122002, 11 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники, Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
מחברים אחרים: Aaij R. Roel, Beteta C. A. Carlos Abellan, Adeva B. Bernardo, Adinolfi M. Marco, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich
סיכום:Title screen
The ratio of the B0s and B+ fragmentation fractions fs and fu is studied with B0s→J/ψϕ and B+→J/ψK+ decays using data collected by the LHCb experiment in proton-proton collisions at 7, 8, and 13 TeV center-of-mass energies. The analysis is performed in bins of B-meson momentum, longitudinal momentum, transverse momentum, pseudorapidity, and rapidity. The fragmentation-fraction ratio fs/fu is observed to depend on the B-meson transverse momentum with a significance of 6.0σ. This dependency is driven by the 13 TeV sample (8.7σ), while the results for the other collision energies are not significant when considered separately. Furthermore, the results show a 4.8σ evidence for an increase of fs/fu as a function of collision energy.
שפה:אנגלית
יצא לאור: 2020
נושאים:
электронный ресурс
труды учёных ТПУ
גישה מקוונת:https://doi.org/10.1103/PhysRevLett.124.122002
פורמט: אלקטרוני Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664645

פריטים דומים

פריטים דומים