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.

Titolo:	Measurement of the B+ total cross section and B+ differential cross section d σ/ dpT in pp̄ collisions at √s = 1.8 TeV
Autori:	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 mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2002
Rivista:	PHYSICAL REVIEW D
Abstract:	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.
Handle:	http://hdl.handle.net/11390/1085171
Appare nelle tipologie:	1.1 Articolo in rivista

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