期刊
PHYSICAL REVIEW D
卷 96, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.96.096019
关键词
-
资金
- Ministry of Education and Science of Russia under Samara University [3.5093.2017/8.9]
We calculate the angular distribution spectra between beauty (B) and antibeauty ((B) over bar) mesons in proton-proton collisions in the leading order approximation of the parton Reggeization approach consistently merged with the next-to-leading order corrections from the emission of an additional hard gluon. To describe b-quark hadronization we use the universal scale-dependent parton-to-meson fragmentation functions extracted from the world e(+)e(-) annihilation data. We have obtained good agreement between our predictions and data from the CMS Collaboration at the energy root S = 7 TeV for B (B) over bar angular correlations within uncertainties and without free parameters. Predictions for analogous correlationo bservables at ffiffiffi root S = 13 TeV are provided.
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