Measurement of bottom-quark hadron masses in exclusive J/ψ decays with the CDF detector

被引：74

作者：

Acosta, D. ^{[1
]}

Adelman, J.

Affolder, T.

Akimoto, T.

Albrow, M. G.

Ambrose, D.

Amerio, S.

Amidei, D.

Anastassov, A.

Anikeev, K.

Annovi, A.

Antos, J.

Aoki, M.

Apollinari, G.

Arisawa, T.

Arguin, F.

Artikov, A.

Ashmanskas, W.

Attal, A.

Azfar, F.

Azzi-Bacchetta, P.

Bacchetta, N.

Bachocou, H.

Badgett, W.

Barbaro-Galtieri, A.

Barker, G. J.

Barnes, V. E.

Barnett, B. A.

Baroiant, S.

Bauer, G.

Bedeschi, F.

Behari, S.

Belforte, S.

Bellettini, G.

Bellinger, J.

Belloni, A.

Ben-Haim, E.

Benjamin, D.

Beretvas, A.

Berry, T.

Bhatti, A.

Binkley, M.

Bisello, D.

Bishai, M.

Blair, R. E.

Blocker, C.

Bloom, K.

Blumenfeld, B.

Bocci, A.

Bodek, A.

机构：

[1] Univ Florida, Gainesville, FL 32611 USA

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

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

[4] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

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

[6] Brandeis Univ, Waltham, MA 02254 USA

[7] Univ Calif Davis, Davis, CA 95616 USA

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

[9] Univ Calif San Diego, La Jolla, CA 92093 USA

[10] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

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

[12] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

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

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

[15] Fermilab Natl Accelerator Lab, Durham, NC 27708 USA

[16] Univ Florida, Gainesville, FL 32611 USA

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

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

[19] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[20] Harvard Univ, Cambridge, MA 02138 USA

[21] Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland

[22] Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[23] Hiroshima Univ, Higashihiroshima 724, Japan

[24] Univ Illinois, Urbana, IL 61801 USA

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

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

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

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

[29] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea

[30] Sungkyunkwan Univ, Suwon 440746, South Korea

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

[32] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England

[33] UCL, London WC1E 6BT, England

[34] MIT, Cambridge, MA 02139 USA

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

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

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

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

[39] Inst Theoret & Expt Phys, Moscow 117259, Russia

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

[41] Northwestern Univ, Evanston, IL 60208 USA

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

[43] Okayama Univ, Okayama 7008530, Japan

[44] Osaka City Univ, Osaka 588, Japan

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

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

[47] Univ Penn, Philadelphia, PA 19104 USA

[48] Univ Pisa, Ist Nazl Fis Nucl Pisa, Siena, Italy

[49] Scuola Normale Super Pisa, I-56127 Pisa, Italy

[50] Univ Pittsburgh, Pittsburgh, PA 15260 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 20期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.96.202001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure the masses of b hadrons in exclusively reconstructed final states containing a J/psi ->mu(-)mu(+) decay using 220 pb(-1) of data collected by the CDF II experiment. We find: m(B+)=5279.10 +/- 0.41((stat.))+/- 0.36((sys.)) MeV/c(2), m(B-0)=5279.63 +/- 0.53((stat.))+/- 0.33((sys.)) MeV/c(2), m(B-s(0))=5366.01 +/- 0.73((stat.))+/- 0.33((sys.)) MeV/c(2), m(Lambda(0)(b))=5619.7 +/- 1.2((stat.))+/- 1.2((sys.)) MeV/c(2). m(B+)-m(B-0)=-0.53 +/- 0.67((stat.))+/- 0.14((sys.)) MeV/c(2), m(B-s(0))-m(B-0)=86.38 +/- 0.90((stat.))+/- 0.06((sys.)) MeV/c(2), m(Lambda(0)(b))-m(B-0)=339.2 +/- 1.4((stat.))+/- 0.1((sys.)) MeV/c(2). The measurements of the B-s(0), Lambda(0)(b) mass, m(B-s(0))-m(B-0) and m(Lambda(0)(b))-m(B-0) mass difference are of better precision than the current world averages.

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