Measurement of the J/ meson and b-hadron production cross sections in pp collisions at s = 1960 GeV Academic Article uri icon


  • We present a new measurement of the inclusive and differential production cross sections of J/ mesons and b hadrons in proton-antiproton collisions at s = 1960 GeV. The data correspond to an integrated luminosity of 39.7 pb-1 collected by the CDF run II detector. We find the integrated cross section for inclusive J/ 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)-0.33+0.36(syst) b. We separate the fraction of J/ events from the decay of the long-lived b hadrons using the lifetime distribution in all events with pT(J/) > 1.25 GeV/c. We find the total cross section for b hadrons, including both hadrons and antihadrons, decaying to J/ with transverse momenta greater than 1.25 GeV/c in the rapidity range |y(J/)| < 0.6 is 0.330 0.005(stat) -0.033+0.036(syst) b. Using a Monte Carlo simulation of the decay kinematics of b hadrons to all final states containing a J/, we extract the first measurement of the total single b-hadron cross section down to zero transverse momentum at 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) -2.3+2.5(syst) b. 2005 The American Physical Society.

published proceedings

  • Physical Review D - Particles, Fields, Gravitation and Cosmology

altmetric score

  • 5.048

author list (cited authors)

  • Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M. G., Ambrose, D., ... Connolly, A.

citation count

  • 627

complete list of authors

  • Acosta, D||Adelman, J||Affolder, T||Akimoto, T||Albrow, MG||Ambrose, D||Amerio, S||Amidei, D||Anastassov, A||Anikeev, K||Annovi, A||Antos, J||Aoki, M||Apollinari, G||Arisawa, T||Arguin, JF||Artikov, A||Ashmanskas, W||Attal, A||Azfar, F||Azzi-Bacchetta, P||Bacchetta, N||Bachacou, H||Badgett, W||Barbaro-Galtieri, A||Barker, GJ||Barnes, VE||Barnett, BA||Baroiant, S||Barone, M||Bauer, G||Bedeschi, F||Behari, S||Belforte, S||Bellettini, G||Bellinger, J||Ben-Haim, E||Benjamin, D||Beretvas, A||Bhatti, A||Binkley, M||Bisello, D||Bishai, M||Blair, RE||Blocker, C||Bloom, K||Blumenfeld, B||Bocci, A||Bodek, A||Bolla, G||Bolshov, A||Booth, PSL||Bortoletto, D||Boudreau, J||Bourov, S||Brau, B||Bromberg, C||Brubaker, E||Budagov, J||Budd, HS||Burkett, K||Busetto, G||Bussey, P||Byrum, KL||Cabrera, S||Campanelli, M||Campbell, M||Canepa, A||Casarsa, M||Carlsmith, D||Carron, S||Carosi, R||Cavalli-Sforza, M||Castro, A||Catastini, P||Cauz, D||Cerri, A||Cerrito, L||Chapman, J||Chen, C||Chen, YC||Chertok, M||Chiarelli, G||Chlachidze, G||Chlebana, F||Cho, L||Cho, K||Chokheli, D||Chou, JP||Chu, ML||Chuang, S||Chung, JY||Chung, WH||Chung, YS||Ciobanu, CI||Ciocci, MA||Clark, AG||Clark, D||Coca, M||Connolly, A

publication date

  • January 2005