学術雑誌論文 Measurement of the B±c production cross section in pp¯ collisions at s√=1.96  TeV

CDF Collaboration  ,  Hara, K.  ,  Kim, S. H.  ,  Sato, K.  ,  Takeuchi, Y.  ,  Ukegawa, F.

93 ( 5 )  , p.052001 , 2016-03 , American Physical Society
ISSN:2470-0010
NII書誌ID(NCID):AA00773624
内容記述
We describe a measurement of the ratio of the cross sections times branching fractions of the B+c meson in the decay mode B+c→J/ψμ+ν to the B+ meson in the decay mode B+→J/ψK+ in proton-antiproton collisions at center-of-mass energy s√=1.96  TeV. The measurement is based on the complete CDF Run II data set, which comes from an integrated luminosity of 8.7  fb−1. The ratio of the production cross sections times branching fractions for B+c and B+ mesons with momentum transverse to the beam greater than 6  GeV/c and rapidity magnitude smaller than 0.6 is 0.211±0.012(stat)+0.021−0.020(syst). Using the known B+→J/ψK+ branching fraction, the known B+ production cross section, and a selection of the predicted B+c→J/ψμ+ν branching fractions, the range for the total B+c production cross section is estimated.
本文を読む

https://tsukuba.repo.nii.ac.jp/?action=repository_action_common_download&item_id=37810&item_no=1&attribute_id=17&file_no=1

このアイテムのアクセス数:  回

その他の情報