Measurement of the B+ total cross section and B+ differential cross section d σ/ dpT in pp̄ collisions at √s = 1.8 TeV

Acosta, D.; Affolder, T.; Akimoto, H.; Albrow, M. G.; Amaral, P.; Ambrose, D.; Amidei, D.; Anikeev, K.; Antos, J; Apollinari, G.; Arisawa, T.; Artikov, A.; Asakawa, T.; Ashmanskas, W.; Azfar, F.; Azzi Bacchetta, P.; Bacchetta, N.; Bachacou, H.; Bailey, S.; De Barbara, P.; Barbaro Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Baroiant, S.; Barone, M.; Bauer, G.; Bedeschi, F.; Belforte, S.; Bell, W. H.; Bellettini, G.; Bellinger, J.; Benjamin, D.; Bensinger, J.; Beretvas, A.; Berge, J. P.; Berryhill, J.; Bhatti, A.; Binkley, M.; Bisello, D.; Bishai, M.; Blair, R. E.; Blocker, C.; Bloom, K.; Blumenfeld, B.; Blusk, S. R.; Bocci, A.; Bodek, A.; Bolla, G.; Bonushkin, Y.; Bortoletto, D.; Boudreau, J.; Brandi, A.; Van Den Brink, S.; Bromberg, C.; Brozovic, M.; Brubaker, E.; Bruner, N.; Buckley Geer, E.; Budagov, J.; Budd, H. S.; Burkett, K.; Busetto, G.; Byon Wagner, A.; Byrum, K. L.; Cabrera, S.; Calafiura, P.; Campbell, M.; Carithers, W.; Carlson, J.; Carlsmith, D.; Caskey, W.; Castro, A.; Cauz, Diego; Cerri, A.; Chan, A. W.; Chang, P. S.; Chang, P. T.; Chapman, J.; Chen, C.; Chen, Y. C.; Cheng, M. T.; Chertok, M.; Chiarelli, G.; Chirikov Zorin, I.; Chlachidze, G.; Chlebana, F.; Christofek, L.; Chu, M. L.; Chung, J. Y.; Chung, Y. S.; Ciobanu, C. I.; Clark, A. G.; Colijn, A. P.; Connolly, A.; Convery, M.; Conway, J.; Cordelli, M.; Cranshaw, J.; Culbertson, R.; Santi, Lorenzo Gianni; Pauletta, Giovanni

doi:10.1103/PhysRevD.65.052005

We present measurements of the B+ meson total cross section and differential cross section dσ/dpT. The measurements use a 98±4 pb−1 sample of pp¯ collisions at √s=1.8 TeV collected by the CDF detector. Charged B meson candidates are reconstructed through the decay B±→J/ψK± with J/ψ⃗ μ+μ−. The total cross section, measured in the central rapidity region |y|<1.0 for pT(B)>6.0 GeV/c, is 3.6±0.6(stat⊕ syst) μb. The measured differential cross section is substantially larger than typical QCD predictions calculated to next-to-leading order.