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Inclusive Production of the X(4140) State in pp[over ¯] Collisions at D0.
- Source :
-
Physical review letters [Phys Rev Lett] 2015 Dec 04; Vol. 115 (23), pp. 232001. Date of Electronic Publication: 2015 Dec 02. - Publication Year :
- 2015
-
Abstract
- We present a study of the inclusive production of the X(4140) state with the decay to the J/ψϕ final state in hadronic collisions. Based on 10.4 fb^{-1} of pp[over ¯] collision data collected by the D0 experiment at the Fermilab Tevatron collider, we report the first evidence for the prompt production of an X(4140) state and find the fraction of X(4140) events originating from b hadrons to be f_{b}=0.39±0.07(stat)±0.10(syst). The ratio of the nonprompt X(4140) production rate to the B_{s}^{0} yield in the same channel is R=0.19±0.05(stat)±0.07(syst). The values of the mass M=4152.5±1.7(stat)_{-5.4}^{+6.2}(syst) MeV and width Γ=16.3±5.6(stat)±11.4(syst) MeV are consistent with previous measurements.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 115
- Issue :
- 23
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 26684112
- Full Text :
- https://doi.org/10.1103/PhysRevLett.115.232001