Inclusive Production of the X(4140) State in p(p)over-bar Collisions at D0

被引：34

作者：

Abazov, V. M. ^{[33
]}

Abbott, B. ^{[70
]}

Acharya, B. S. ^{[27
]}

Adams, M. ^{[49
]}

Adams, T. ^{[47
]}

Agnew, J. P. ^{[44
]}

Alexeev, G. D. ^{[33
]}

Alkhazov, G. ^{[37
]}

Alton, A. ^{[59
]}

Askew, A. ^{[47
]}

Atkins, S. ^{[57
]}

Augsten, K. ^{[7
]}

Avila, C. ^{[5
]}

Badaud, F. ^{[10
]}

Bagby, L. ^{[48
]}

Baldin, B. ^{[48
]}

Bandurin, D. V. ^{[77
]}

Banerjee, S. ^{[27
]}

Barberis, E. ^{[58
]}

Baringer, P. ^{[56
]}

Bartlett, J. F. ^{[48
]}

Bassler, U. ^{[16
]}

Bazterra, V. ^{[49
]}

Bean, A. ^{[56
]}

Begalli, M. ^{[2
]}

Bellantoni, L. ^{[48
]}

Beri, S. B. ^{[25
]}

Bernardi, G. ^{[14
,15
]}

Bernhard, R. ^{[21
]}

Bertram, I. ^{[42
]}

Besancon, M. ^{[16
]}

Beuselinck, R. ^{[43
]}

Bhat, P. C. ^{[48
]}

Bhatia, S. ^{[61
]}

Bhatnagar, V. ^{[25
]}

Blazey, G. ^{[50
]}

Blessing, S. ^{[47
]}

Bloom, K. ^{[62
]}

Boehnlein, A. ^{[48
]}

Boline, D. ^{[67
]}

Boos, E. E. ^{[35
]}

Borissov, G. ^{[42
]}

Borysova, M. ^{[41
]}

Brandt, A. ^{[74
]}

Brandt, O. ^{[22
]}

Brock, R. ^{[60
]}

Bross, A. ^{[48
]}

Brown, D. ^{[14
,15
]}

Bu, X. B. ^{[48
]}

Buehler, M. ^{[48
]}

机构：

[1] LAFEX, Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[2] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

[3] Univ Fed ABC, Santo Andre, Brazil

[4] Univ Sci & Technol China, Hefei, Peoples R China

[5] Univ Los Andes, Bogota, Colombia

[6] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic

[7] Czech Tech Univ, CR-16635 Prague, Czech Republic

[8] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

[9] Univ San Francisco Quito, Quito, Ecuador

[10] Univ Blaise Pascal, LPC, CNRS IN2P3, Clermont, France

[11] Univ Grenoble 1, LPSC, CNRS IN2P3, Inst Natl Polytech Grenoble, Grenoble, France

[12] Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France

[13] Univ Paris 11, LAL, CNRS IN2P3, Orsay, France

[14] Univ Paris 06, LPNHE, Paris, France

[15] Univ Paris 06, CNRS IN2P3, Paris, France

[16] CEA, Irfu, SPP, Saclay, France

[17] Univ Strasbourg, IPHC, CNRS IN2P3, Strasbourg, France

[18] Univ Lyon 1, IPNL, CNRS IN2P3, F-69622 Villeurbanne, France

[19] Univ Lyon, Lyon, France

[20] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[21] Univ Freiburg, Phys Inst, D-79106 Freiburg, Germany

[22] Univ Gottingen, Phys Inst 2, D-37073 Gottingen, Germany

[23] Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany

[24] Univ Munich, Munich, Germany

[25] Panjab Univ, Chandigarh 160014, India

[26] Univ Delhi, Delhi 110007, India

[27] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[28] Univ Coll Dublin, Dublin 2, Ireland

[29] Korea Univ, Korea Detector Lab, Seoul, South Korea

[30] CINVESTAV, Mexico City 14000, DF, Mexico

[31] Nikhef, Amsterdam, Netherlands

[32] Radboud Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands

[33] Joint Inst Nucl Res, Dubna, Russia

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

[35] Moscow MV Lomonosov State Univ, Moscow, Russia

[36] Inst High Energy Phys, Protvino, Russia

[37] Petersburg Nucl Phys Inst, St Petersburg, Russia

[38] ICREA, Barcelona, Spain

[39] IFAE, Barcelona, Spain

[40] Uppsala Univ, Uppsala, Sweden

[41] Taras Shevchenko Natl Univ Kyiv, Kiev, Ukraine

[42] Univ Lancaster, Lancaster LA1 4YB, England

[43] Imperial Coll London, London SW7 2AZ, England

[44] Univ Manchester, Manchester M13 9PL, Lancs, England

[45] Univ Arizona, Tucson, AZ 85721 USA

[46] Univ Calif Riverside, Riverside, CA 92521 USA

[47] Florida State Univ, Tallahassee, FL 32306 USA

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

[49] Univ Illinois, Chicago, IL 60607 USA

[50] Northern Illinois Univ, De Kalb, IL 60115 USA

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 23期

基金：

美国国家科学基金会; 中国国家自然科学基金; 瑞典研究理事会; 新加坡国家研究基金会; 英国科学技术设施理事会; 俄罗斯基础研究基金会; 爱尔兰科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.115.232001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a study of the inclusive production of the X(4140) state with the decay to the J/psi phi final state in hadronic collisions. Based on 10.4 fb(-1) of p (p) over bar collision data collected by the D0 experiment at the Fermilab Tevatron collider, we report the first evidence for the prompt production of an X(4140) state and find the fraction of X(4140) events originating from b hadrons to be f(b) = 0.39 +/- 0.07 (stat) +/- 0.10 (syst). The ratio of the nonprompt X(4140) production rate to the B-s(0) yield in the same channel is R = 0.19 +/- 0.05 (stat) +/- 0.07 (syst). The values of the mass M = 4152.5 +/- 1.7 (stat)(-5.4)(+/- 6.2)(syst) MeV and width Gamma = 16.3 +/- 5.6 (stat) +/- 11.4 (syst) MeV are consistent with previous measurements.

引用

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