Evidence for a Particle Produced in Association with Weak Bosons and Decaying to a Bottom-Antibottom Quark Pair in Higgs Boson Searches at the Tevatron

被引：197

作者：

Aaltonen, T. ^{[1
,2
]}

Abazov, V. M. ^{[65
]}

Abbott, B. ^{[128
]}

Acharya, B. S. ^{[37
]}

Adams, M. ^{[97
]}

Adams, T. ^{[93
]}

Alexeev, G. D. ^{[65
]}

Alkhazov, G. ^{[69
]}

Alton, A. ^{[113
,114
]}

Gonzalez, B. Alvarez ^{[76
]}

Alverson, G. ^{[111
]}

Amerio, S. ^{[42
]}

Amidei, D. ^{[114
]}

Anastassov, A. ^{[95
]}

Annovi, A. ^{[41
]}

Antos, J. ^{[70
,71
]}

Apollinari, G. ^{[95
]}

Appel, J. A. ^{[95
]}

Arisawa, T. ^{[53
]}

Artikov, A. ^{[65
]}

Asaadi, J.

Ashmanskas, W. ^{[95
]}

Askew, A. ^{[93
]}

Atkins, S.

Auerbach, B. ^{[91
]}

Augsten, K. ^{[14
]}

Aurisano, A.

Avila, C. ^{[12
]}

Azfar, F. ^{[85
]}

Badaud, F. ^{[17
]}

Badgett, W. ^{[95
]}

Bae, T. ^{[55
,56
,57
,58
,59
,60
]}

Bagby, L. ^{[95
]}

Baldin, B. ^{[95
]}

Bandurin, D. V. ^{[93
]}

Banerjee, S. ^{[37
]}

Barbaro-Galtieri, A. ^{[87
]}

Barberis, E. ^{[111
]}

Baringer, P. ^{[106
]}

Barnes, V. E. ^{[104
]}

Barnett, B. A. ^{[109
]}

Barria, P. ^{[44
]}

Bartlett, J. F. ^{[95
]}

Bartos, P. ^{[70
,71
]}

Bassler, U. ^{[23
]}

Bauce, M. ^{[42
,43
]}

Bazterra, V. ^{[97
]}

Bean, A. ^{[106
]}

Bedeschi, F. ^{[44
]}

Begalli, M. ^{[4
]}

机构：

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

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

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

[4] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil

[5] Univ Fed ABC, Santo Andre, Brazil

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

[7] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

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

[9] TRIUMF, Vancouver, BC V6T 2A3, Canada

[10] Univ Sci & Technol China, Hefei 230026, Peoples R China

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

[12] Univ Los Andes, Bogota, Colombia

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

[14] Czech Tech Univ, Prague, Czech Republic

[15] Acad Sci Czech Republ, Inst Phys, Ctr Particle Phys, Prague, Czech Republic

[16] Univ San Francisco Quito, Quito, Ecuador

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

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

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

[20] Univ Paris Sud, CNRS, IN2P3, LAL, Orsay, France

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

[22] Univ Paris 07, CNRS, IN2P3, Paris, France

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

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

[25] Univ Lyon, Lyon, France

[26] Univ Lyon 1, IPNL, CNRS, IN2P3, F-69365 Lyon, France

[27] Rhein Westfal TH Aachen, Inst Phys 3, Aachen, Germany

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

[29] Univ Gottingen, Inst Phys 2, Gottingen, Germany

[30] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany

[31] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany

[32] Univ Munich, Munich, Germany

[33] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[34] Univ Athens, GR-15771 Athens, Greece

[35] Panjab Univ, Chandigarh 160014, India

[36] Univ Delhi, Delhi 110007, India

[37] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India

[38] Univ Coll Dublin, Dublin 2, Ireland

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

[40] Univ Bologna, I-40127 Bologna, Italy

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

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

[43] Univ Padua, I-35131 Padua, Italy

[44] Ist Nazl Fis Nucl, I-56127 Pisa, Italy

[45] Univ Pisa, I-56127 Pisa, Italy

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

[47] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy

[48] Univ Roma La Sapienza, I-00185 Rome, Italy

[49] Ist Nazl Fis Nucl, I-34100 Trieste, Italy

[50] Ist Nazl Fis Nucl, I-33100 Udine, Italy

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 07期

基金：

瑞典研究理事会; 巴西圣保罗研究基金会; 美国国家科学基金会; 芬兰科学院; 加拿大自然科学与工程研究理事会;

关键词：

STANDARD MODEL; SYMMETRIES; COLLISIONS;

D O I：

10.1103/PhysRevLett.109.071804

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We combine searches by the CDF and D0 Collaborations for the associated production of a Higgs boson with a W or Z boson and subsequent decay of the Higgs boson to a bottom-antibottom quark pair. The data, originating from Fermilab Tevatron p (p) over bar collisions at root s = 1.96 TeV, correspond to integrated luminosities of up to 9.7 fb(-1). The searches are conducted for a Higgs boson with mass in the range 100-150 GeV/c(2). We observe an excess of events in the data compared with the background predictions, which is most significant in the mass range between 120 and 135 GeV/c(2). The largest local significance is 3.3 standard deviations, corresponding to a global significance of 3.1 standard deviations. We interpret this as evidence for the presence of a new particle consistent with the standard model Higgs boson, which is produced in association with a weak vector boson and decays to a bottom-antibottom quark pair.

引用

页数：12

共 57 条

[51] New generation of parton distributions with uncertainties from global QCD analysis [J].