Observation of orbitally excited B mesons in p(p)over-bar collisions at √s=1.8 TeV -: art. no. 072002

被引：0

作者：

Affolder, T ^{[1
]}

Akimoto, H

Akopian, A

Albrow, MG

Amaral, P

Amendolia, SR

Amidei, D

Anikeev, K

Antos, J

Apollinari, G

Arisawa, T

Asakawa, T

Ashmanskas, W

Atac, M

Azfar, F

Azzi-Bacchetta, P

Bacchetta, N

Bailey, MW

Bailey, S

de Barbaro, P

Barbaro-Galtieri, A

Barnes, VE

Barnett, BA

Barone, M

Bauer, G

Bedeschi, F

Belforte, S

Bellettini, G

Bellinger, J

Benjamin, D

Bensinger, J

Beretvas, A

Berge, JP

Berryhill, J

Bertolucci, S

Bevensee, B

Bhatti, A

Bigongiari, C

Binkley, M

Bisello, D

Blair, RE

Blocker, C

Bloom, K

Blumenfeld, B

Blusk, BS

Bocci, A

Bodek, A

Bokhari, W

Bolla, G

Bonushkin, Y

机构：

[1] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[3] Argonne Natl Lab, Argonne, IL 60439 USA

[4] Univ Bologna, Ist Nazl Fis Nucl, I-40127 Bologna, Italy

[5] Brandeis Univ, Waltham, MA 02254 USA

[6] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[7] Univ Cantabria, Inst Fis Cantabria, E-39005 Santander, Spain

[8] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[9] Joint Nucl Res Inst, RU-141980 Dubna, Russia

[10] Duke Univ, Durham, NC 27708 USA

[11] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[12] Univ Florida, Gainesville, FL 32611 USA

[13] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[14] Univ Geneva, CH-1211 Geneva 4, Switzerland

[15] Harvard Univ, Cambridge, MA 02138 USA

[16] Hiroshima Univ, Higashihiroshima 724, Japan

[17] Univ Illinois, Urbana, IL 61801 USA

[18] Johns Hopkins Univ, Baltimore, MD 21218 USA

[19] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[20] Kyungpook Natl Univ, Korean Hadron Collider Lab, Taegu 702701, South Korea

[21] Seoul Natl Univ, Seoul 151742, South Korea

[22] Sungkyunkwan Univ, Suwon 440746, South Korea

[23] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 305, Japan

[24] MIT, Cambridge, MA 02139 USA

[25] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada

[26] Univ Toronto, Toronto, ON M5S 1A7, Canada

[27] Univ Michigan, Ann Arbor, MI 48109 USA

[28] Michigan State Univ, E Lansing, MI 48824 USA

[29] Univ New Mexico, Albuquerque, NM 87131 USA

[30] Ohio State Univ, Columbus, OH 43210 USA

[31] Osaka City Univ, Osaka 588, Japan

[32] Univ Oxford, Oxford OX1 3RH, England

[33] Univ Padua, Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[34] Univ Penn, Philadelphia, PA 19104 USA

[35] Univ Pisa, Ist Nazl Fis Nucl, I-56100 Pisa, Italy

[36] Scuola Normale Super Pisa, I-56100 Pisa, Italy

[37] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[38] Purdue Univ, W Lafayette, IN 47907 USA

[39] Univ Rochester, Rochester, NY 14627 USA

[40] Rockefeller Univ, New York, NY 10021 USA

[41] Rutgers State Univ, Piscataway, NJ 08855 USA

[42] Texas A&M Univ, College Stn, TX 77843 USA

[43] Texas Tech Univ, Lubbock, TX 79409 USA

[44] Univ Trieste, Ist Nazl Fis Nucl, Udine, Italy

[45] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan

[46] Tufts Univ, Medford, MA 02155 USA

[47] Waseda Univ, Tokyo 169, Japan

[48] Univ Wisconsin, Madison, WI 53706 USA

[49] Yale Univ, New Haven, CT 06520 USA

来源：

PHYSICAL REVIEW D | 2001年 / 64卷 / 07期

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We measure the relative rate of production of orbitally excited (L = 1) states of B mesons (B**) by observing their decays into B pi (+/-). We reconstruct B mesons through semileptonic decay channels using data collected in p(p) over bar collisions at roots = 1.8 TeV. The fraction of light B mesons that are produced as L = 1B** states is measured to be 0.28 +/- 0.06(stat) +/- 0.03(syst). We also measure the collective mass of the B** states, and quantify the result by quoting the (model-dependent) mass of the lowest B** state to be m(B-1) = 5.71 +/- 0.02 GeV/c(2).

引用

页数：16

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