Measurement of the J/{psi} meson and b-hadron production cross sections in pp collisions at {radical}(s)=1960 GeV

Journal Article · Tue Feb 01 00:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.032001· OSTI ID:20705907

Acosta, D; Field, R D; Klimenko, S; Konigsberg, J; Korytov, A; Lungu, G; Mitselmakher, G; Necula, V; Pronko, A; Sukhanov, A; Tsybychev, D; Wang, S M ^[1]; Adelman, J; Brubaker, E; Fedorko, W T; Furic, I; Grosso-Pilcher, C; Hoffman, K D; Kim, Y K; Kwang, S ^[2]

---

1. University of Florida, Gainesville, Florida 32611 (United States)
2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States); and others

We present a new measurement of the inclusive and differential production cross sections of J/{psi} mesons and b hadrons in proton-antiproton collisions at {radical}(s)=1960 GeV. The data correspond to an integrated luminosity of 39.7 pb{sup -1} collected by the CDF run II detector. We find the integrated cross section for inclusive J/{psi} production for all transverse momenta from 0 to 20 GeV/c in the rapidity range |y|<0.6 to be 4.08{+-}0.02(stat){sub -0.33}{sup +0.36}(syst) {mu}b. We separate the fraction of J/{psi} events from the decay of the long-lived b hadrons using the lifetime distribution in all events with p{sub T}(J/{psi})>1.25 GeV/c. We find the total cross section for b hadrons, including both hadrons and antihadrons, decaying to J/{psi} with transverse momenta greater than 1.25 GeV/c in the rapidity range |y(J/{psi})|<0.6 is 0.330{+-}0.005(stat){sub -0.033}{sup +0.036}(syst) {mu}b. Using a Monte Carlo simulation of the decay kinematics of b hadrons to all final states containing a J/{psi}, we extract the first measurement of the total single b-hadron cross section down to zero transverse momentum at {radical}(s)=1960 GeV. We find the total single b-hadron cross section integrated over all transverse momenta for b hadrons in the rapidity range |y|<0.6 to be 17.6{+-}0.4(stat){sub -2.3}{sup +2.5}(syst) {mu}b.

• OSTI ID: 20705907
• Journal Information: Physical Review. D, Particles Fields, Vol. 71, Issue 3; Other Information: DOI: 10.1103/PhysRevD.71.032001; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPUTERIZED SIMULATION
DISTRIBUTION
FERMILAB COLLIDER DETECTOR
GEV RANGE
J PSI-3097 MESONS
LIFETIME
MONTE CARLO METHOD
PARTICLE DECAY
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PROTON-ANTIPROTON INTERACTIONS
PROTON-PROTON INTERACTIONS
TRANSVERSE MOMENTUM