Measurement of b(b)over-bar rapidity correlations in p(p)over-bar collisions at √s=1.8 TeV -: art. no. 032001

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作者
Abe, F [1 ]
Akimoto, H
Akopian, A
Albrow, MG
Amadon, A
Amendolia, SR
Amidei, D
Antos, J
Aota, S
Apollinari, G
Arisawa, T
Asakawa, T
Ashmanskas, W
Atac, M
Azzi-Bacchetta, P
Bacchetta, N
Bagdasarov, S
Bailey, MW
de Barbaro, P
Barbaro-Galtieri, A
Barnes, VE
Barnett, BA
Barone, M
Bauer, G
Baumann, T
Bedeschi, F
Behrends, S
Belforte, S
Bellettini, G
Bellinger, J
Benjamin, D
Bensinger, J
Beretvas, A
Berge, JP
Berryhill, J
Bertolucci, S
Bettelli, S
Bevensee, B
Bhatti, A
Biery, K
Bigongiari, C
Binkley, M
Bisello, D
Blair, RE
Blocker, C
Bloom, K
Blusk, S
Bodek, A
Bokhari, W
Bolla, G
机构
[1] Natl Lab High Energy Phys, 1-1 Oho, Tsukuba, Ibaraki 305, Japan
[2] Argonne Natl Lab, Argonne, IL 60439 USA
[3] Univ Bologna, Ist Nazl Fis Nucl, I-40127 Bologna, Italy
[4] Brandeis Univ, Waltham, MA 02254 USA
[5] Univ Calif Los Angeles, Los Angeles, CA 90024 USA
[6] Univ Chicago, Chicago, IL 60637 USA
[7] Duke Univ, Durham, NC 27708 USA
[8] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
[9] Univ Florida, Gainesville, FL 32611 USA
[10] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[11] Univ Geneva, CH-1211 Geneva 4, Switzerland
[12] Harvard Univ, Cambridge, MA 02138 USA
[13] Hiroshima Univ, Higashihiroshima 724, Japan
[14] Univ Illinois, Urbana, IL 61801 USA
[15] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada
[16] Univ Toronto, Toronto, ON M5S 1A7, Canada
[17] Johns Hopkins Univ, Baltimore, MD 21218 USA
[18] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany
[19] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[20] MIT, Cambridge, MA 02139 USA
[21] Univ Michigan, Ann Arbor, MI 48109 USA
[22] Michigan State Univ, E Lansing, MI 48824 USA
[23] Univ New Mexico, Albuquerque, NM 87131 USA
[24] Ohio State Univ, Columbus, OH 43210 USA
[25] Osaka City Univ, Osaka 588, Japan
[26] Univ Padua, Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
[27] Univ Penn, Philadelphia, PA 19104 USA
[28] Univ Pisa, Ist Nazl Fis Nucl, I-56100 Pisa, Italy
[29] Scuola Normale Super Pisa, I-56100 Pisa, Italy
[30] Univ Pittsburgh, Pittsburgh, PA 15260 USA
[31] Purdue Univ, W Lafayette, IN 47907 USA
[32] Univ Rochester, Rochester, NY 14627 USA
[33] Rockefeller Univ, New York, NY 10021 USA
[34] Rutgers State Univ, Piscataway, NJ 08855 USA
[35] Acad Sinica, Taipei 11530, Taiwan
[36] Texas A&M Univ, College Stn, TX 77843 USA
[37] Texas Tech Univ, Lubbock, TX 79409 USA
[38] Univ Trieste Udine, Ist Nazl Fis Nucl, Trieste, Italy
[39] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan
[40] Tufts Univ, Medford, MA 02155 USA
[41] Waseda Univ, Tokyo 169, Japan
[42] Univ Wisconsin, Madison, WI 53706 USA
[43] Yale Univ, New Haven, CT 06520 USA
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暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report the first direct measurement of b(b) over bar rapidity correlations in p(p) over bar collisions at root s=1.8 TeV. We select events with a high transverse momentum muon accompanied by a jet, and a second jet associated with a decay vertex displaced from the pp interaction vertex. Two independent samples are obtained corresponding to events with a forward (2.0<\eta\<2.6) or central (\eta\<0.6) muon. We measure the ratio of forward to central <b(b)over bar> production to be 0.361 +/- 0.033( stat)(-0.031)(+0/015)(syst), in good agreement with the next-to-leading order QCD prediction 0.338(-0.097)(+0.014).
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页数:18
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