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Frontiers of Physics

ISSN 2095-0462

ISSN 2095-0470(Online)

CN 11-5994/O4

邮发代号 80-965

2019 Impact Factor: 2.502

Frontiers of Physics  2013, Vol. 8 Issue (3): 270-284   https://doi.org/10.1007/s11467-013-0293-0
  REVIEW ARTICLE 本期目录
Higgs boson searches at the Tevatron
Higgs boson searches at the Tevatron
Gavin J. Davies, on behalf of the CDF and D0 Collaborations()
Imperial College London, London SW7 2AZ, United Kingdom
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Abstract

This article reviews the Higgs searches at the Tevatron, as presented over the summer of 2012; both standard model (SM) and beyond the standard model (BSM) results are discussed as detailed (arXiv: 1207.0449; Phys. Rev. Lett., 2012, 109: 071804; Phys. Rev. D, 2012, 85: 032005).We discuss the combination of searches by the CDF and D0 Collaborations for the standard model Higgs boson in the mass range 100-200 GeV/c2 produced in the the ggH, WH, ZH, tt ˉH, and vector boson fusion production modes, and decaying in the Hbb ˉ, HW + W-, HZZ, Hτ+τ-, and H→γγ modes. The data, collected at the Fermilab Tevatron collider inpp ˉ collisions at s = 1.96 TeV, correspond to integrated luminosities of up to 10 fb-1. In the absence of signal, we expect to exclude the regions 100<mH<120 GeV/c2 and 139<mH<184 GeV/c2. We exclude, at the 95% C.L., two regions: 100<mH<103 GeV/c2, and 147<mH<180 GeV/c2. We observe a signi.cant excess of events in the mass range between 115 and 140 GeV/c2. The local signi.cance corresponds to 3.0 standard deviations at mH =120 GeV/c2; the global signi.cance (incorporating the lookelsewhere e.ect) for such an excess anywhere in the full mass range investigated is approximately 2.5 standard deviations. Furthermore, we separately combine searches for Hbb ˉ, HW + W-and H→γγ. We find that the excess is concentrated in the Hbbˉ channel, appearing in the searches over a broad range of mH; the maximum local significance of 3.3 standard deviations corresponds to a global significance of approximately 3.1 standard deviations. The observed signal strengths in all channels are consistent with the expectation for a standard model Higgs boson at mH = 125 GeV/c2. The production of neutral Higgs bosons in association with b-quarks can be significantly enhanced in various beyond the standard model scenarios, including Supersymmetry. The recent combination of such searches from the two collaborations is discussed.

Key wordsHiggs    Tevatron
收稿日期: 2012-12-18      出版日期: 2013-06-01
Corresponding Author(s): Davies, on behalf of the CDF and D0 Collaborations Gavin J.,Email:g.j.davies@imperial.ac.uk   
 引用本文:   
. Higgs boson searches at the Tevatron[J]. Frontiers of Physics, 2013, 8(3): 270-284.
Gavin J. Davies, on behalf of the CDF and D0 Collaborations. Higgs boson searches at the Tevatron. Front. Phys. , 2013, 8(3): 270-284.
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https://academic.hep.com.cn/fop/CN/10.1007/s11467-013-0293-0
https://academic.hep.com.cn/fop/CN/Y2013/V8/I3/270
1 T. Aaltonen, . [CDF and D0 Collaborations], arXiv: 1207.0449 , 2012
2 T. Aaltonen, . [CDF and D0 Collaborations], Phys. Rev. Lett. , 2012, 109: 071804
doi: 10.1103/PhysRevLett.109.071804
3 T. Aaltonen, . [CDF and D0 Collaborations], Phys. Rev. D , 2012, 85: 032005
doi: 10.1103/PhysRevD.85.032005
4 S. L. Glashow, Nucl. Phys. , 1961, 22(4): 579
doi: 10.1016/0029-5582(61)90469-2
5 S. Weinberg, Phys. Rev. Lett. , 1967, 19(21): 1264
doi: 10.1103/PhysRevLett.19.1264
6 A. Salam, Elementary Particle Theory, edited by N. Svartholm, Stockholm: Almqvist &amp; Wiksell, 1968: 367
7 F. Englert and R. Brout, Phys. Rev. Lett. , 1964, 13(9): 321
doi: 10.1103/PhysRevLett.13.321
8 P. W. Higgs, Phys. Rev. Lett. , 1964, 13(16): 508
doi: 10.1103/PhysRevLett.13.508
9 G. S. Guralnik, C. R. Hagen, and T. W. B. Kibble, Phys. Rev. Lett. , 1964, 13(20): 585
doi: 10.1103/PhysRevLett.13.585
10 P. W. Higgs, Phys. Rev. , 1966, 145(4): 1156
doi: 10.1103/PhysRev.145.1156
11 T. Aaltonen, . [CDF and D0 Collaborations], arXiv: 1204.0042 , 2012
12 T. Aaltonen, . [CDF and D0 Collaborations], Phys. Rev. D , 2012, 86: 092003
doi: 10.1103/PhysRevD.86.092003
13 The ALEPH, CDF, D0, DELPHI, L3, OPAL, and SLD Collaborations, the LEP ElectroweakWorking Group, the Tevatron Electroweak Working Group, and the SLD Electroweak and Heavy Flavor Working Groups, arXiv: 1012.2367v2 , 2011
14 The ALEPH, DELPHI, L3 and OPAL Collaborations, and the LEP Working Group for Higgs Boson Searches, Phys. Lett. B , 2003, 565: 61
15 G. Aad, . [ATLAS Collaboration], Phys. Lett. B , 2012, 716: 1
doi: 10.1016/j.physletb.2012.08.020
16 S. Chatrchyan, . [CMS Collaboration], Phys. Lett. B , 2012, 716: 30
doi: 10.1016/j.physletb.2012.08.021
17 G. Aad, . [ATLAS Collaboration], arXiv: 1207.0210 , 2012; submitted to Phys. Lett. B .
18 S. Chatrchyan, . [CMS Collaboration], Phys. Lett. B , 2012, 710: 284
doi: 10.1016/j.physletb.2012.02.085
19 CDF and D0 use cylindrical coordinate systems with origins in the centers of the detectors, where θ and ? are the polar and azimuthal angles, respectively, and pseudora pidity is η= .ln tan(θ/2). The missing ET (E?T) is defined by E?T = -ΣiETin^i, i = calorimeter tower number, where n^i is a unit vector perpendicular to the beam axis and pointing at the ith calorimeter tower. E?T is corrected for high-energy muons and also jet energy corrections.We define E?T = |E?T|.The transverse momentum pTis defined to be psin θ.
20 T. Sj?strand, S. Mrenna, and P. Skands, J. High Energy Phys. , 2006, 05: 026. We use pythia version 6.216 to generate the Higgs boson signals.
21 H. L. Lai, J. Huston, S. Kuhlmann, J. Morfin, F. Olness, J. F. Owens, J. Pumplin, and W. K. Tung, Eur. Phys. J. C , 2000, 12(3): 375
doi: 10.1007/s100529900196
22 J. Pumplin, , J. High Energy Phys. , 2002, 07: 012
23 C. Anastasiou, R. Boughezal, and F. Petriello, J. High Energy Phys. , 2009, 04: 003
24 D. de Florian and M. Grazzini, Phys. Lett. B , 2009, 674(4-5): 291
doi: 10.1016/j.physletb.2009.03.033
25 J. Baglio and A. Djouadi, J. High Energy Phys. , 2010, 10: 064
26 O. Brein, R. V. Harlander, M. Weisemann, and T. Zirke, Eur. Phys. J. C , 2012, 72(2): 1868
doi: 10.1140/epjc/s10052-012-1868-6
27 P. Bolzoni, F. Maltoni, S. O. Moch, and M. Zaro, Phys. Rev. Lett. , 2010, 105(1): 011801
doi: 10.1103/PhysRevLett.105.011801
28 M. Ciccolini, A. Denner, and S. Dittmaier, Phys. Rev. Lett. , 2007, 99(16): 161803
doi: 10.1103/PhysRevLett.99.161803
29 M. Ciccolini, A. Denner, and S. Dittmaier, Phys. Rev. D , 2008, 77(1): 013002
doi: 10.1103/PhysRevD.77.013002
30 A. D. Martin, W. J. Stirling, R. S. Thorne, and G. Watt, Eur. Phys. J. C , 2009, 63(2): 189
doi: 10.1140/epjc/s10052-009-1072-5
31 S. Alekhin, . [PDF4LHC Working Group], arXiv: 1101.0536 , 2011
32 M. Botje, . [PDF4LHC Working Group], arXiv: 1101.0538 , 2011
33 C. Anastasiou, G. Dissertori, M. Grazzini, F. St?ckli, and B. R. Webber, J. High Energy Phys. , 2009, 08: 099
34 S. Dittmaier, . [LHC Higgs Cross Section Working Group], arXiv: 1201.3084 , 2012
35 A. Djouadi, J. Kalinowski, and M. Spira, Comput. Phys. Commun. , 1998, 108(1): 56
doi: 10.1016/S0010-4655(97)00123-9
36 A. Bredenstein, A. Denner, S. Dittmaier, and M. M. Weber, Phys. Rev. D , 2006, 74(1): 013004
doi: 10.1103/PhysRevD.74.013004
37 A. Bredenstein, A. Denner, S. Dittmaier, A. Mück, and M. M. Weber, J. High Energy Phys. , 2007, 02: 080
38 G. Bozzi, S. Catani, D. de Florian, and M. Grazzini, Phys. Lett. B , 2003, 564(1-2): 65
doi: 10.1016/S0370-2693(03)00656-7
39 G. Bozzi, S. Catani, D. de Florian, and M. Grazzini, Nucl. Phys. B , 2006, 737(1-2): 73
doi: 10.1016/j.nuclphysb.2005.12.022
40 M. Mangano, M. Moretti, F. Piccinini, R. Pittau, and A. Polosa, J. High Energy Phys. , 2003, 07: 001
41 S. Frixione and B. R. Webber, J. High Energy Phys. , 2002, 06: 029
42 G. Corcella, I. G. Knowles, G. Marchesini, S. Moretti, K. Odagiri, P. Richardson, M. H. Seymour, and B. R. Webber, J. High Energy Phys. , 2001, 01: 010
43 A. Pukhov, E. Boos, M. Dubinin, V. Edneral, V. Ilyin, D. Kovalenko, A. Kryukov, V. Savrin, S. Shichanin, and A. Semenov, arXiv: hep-ph/9908288 , 1999
44 E. Boos, V. Bunichev, M. Dubinin, L. Dudko, V. Ilyin, A. Kryukov, V. Edneral, V. Savrin, A. Semenov, and A. Sherstnev, Nucl. Instrum. Methods Phys. Res.: Sect. A , 2004, 534: 250
doi: 10.1016/j.nima.2004.07.096
45 E. E. Boos, V. E. Bunichev, L. V. Dudko, V. I. Savrin, and A. V. Sherstnev, Phys. At. Nucl. , 2006, 69(8): 1317
doi: 10.1134/S1063778806080084
46 J. M. Campbell and R. K. Ellis, Phys. Rev. D , 1999, 60(11): 113006
doi: 10.1103/PhysRevD.60.113006
47 U. Langenfeld, S. Moch, and P. Uwer, Phys. Rev. D , 2009, 80(5): 054009
doi: 10.1103/PhysRevD.80.054009
48 N. Kidonakis, Phys. Rev. D , 2006, 74(11): 114012
doi: 10.1103/PhysRevD.74.114012
49 R. Hamberg, W. L. van Neerven, and T. Matsuura, Nucl. Phys. B , 1991, 359(2-3): 343; Erratum, Nucl. Phys. B , 2002, 644: 403
doi: 10.1016/S0550-3213(02)00814-3
50 A heavy-.avor jet is a reconstructed cluster of calorimeter energies associated with particles produced in the hadronization and decay of a bottom or charm quark.
51 A B-tagged jet is one identified to have originated from the decay of a heavy .avor quark.
52 D. Acosta, . [CDF Collaboration], Phys. Rev. D , 2005, 71: 032001
doi: 10.1103/PhysRevD.71.032001
53 A. Abulencia, . [CDF Collaboration], J. Phys. G , 2007, 34: 2457
doi: 10.1088/0954-3899/34/12/001
54 V. M. Abazov, . [D0 Collaboration], Nucl. Instrum. Methods Phys. Res.: Sect. A , 2006, 565: 463
doi: 10.1016/j.nima.2006.05.248
55 M. Abolins, ., Nucl. Instrum. Methods Phys. Res.: Sect. A , 2008, 584: 75
doi: 10.1016/j.nima.2007.10.014
56 R. Angstadt, ., Nucl. Instrum. Methods Phys. Res.: Sect. A , 2010, 622: 298
doi: 10.1016/j.nima.2010.04.148
57 For a recent review, see: P. C. Bhat, Ann. Rev. Nucl. Part. Sci. , 2011, 61(1): 281. The specific details of each analysis’s MVA are described in the respective references .
doi: 10.1146/annurev.nucl.012809.104427
58 V. M. Abazov, , Nucl. Instrum. Methods Phys. Res.: Sect. A , 2010, 620: 490
doi: 10.1016/j.nima.2010.03.118
59 J. Freeman, . Nucl. Instrum. Methods Phys. Res.: Sect. A , 2013, 697: 64
doi: 10.1016/j.nima.2012.09.021
60 D. Acosta, . [CDF Collaboration], Phys. Rev. D , 2005, 71: 052003
doi: 10.1103/PhysRevD.71.052003
61 A. Abulencia, . [CDF Collaboration], Phys. Rev. D , 2006, 74: 072006
doi: 10.1103/PhysRevD.74.072006
62 Statistics, in: K. Nakamura, . [Particle Data Group], J. Phys. G , 2010, 37: 075021.
doi: 10.1088/0954-3899/37/7A/075021
63 T. Aaltonen, . [CDF Collaboration], Phys. Rev. Lett. , 2012, 109(11): 111802
doi: 10.1103/PhysRevLett.109.111802
64 V. M. Abazov, . [D0 Collaboration], Phys. Rev. Lett. , 2012, 109(12): 121802
doi: 10.1103/PhysRevLett.109.121802
65 W. Fisher, FERMILAB-TM-2386-E , 2006
66 T. Junk Nucl. Instrum. Methods Phys. Res.: Sect. A , 1999, 434: 435
doi: 10.1016/S0168-9002(99)00498-2
67 A. L. Read, J. Phys. G , 2002, 28(10): 2693
doi: 10.1088/0954-3899/28/10/313
68 I. W. Stewart and F. J. Tackmann, Phys. Rev. D , 2012, 85(3): 034011
doi: 10.1103/PhysRevD.85.034011
69 J. M. Campbell, R. K. Ellis, and C. Williams, Phys. Rev. D , 2010, 81(7): 074023
doi: 10.1103/PhysRevD.81.074023
70 L. Lyons, Annals of Applied Statistics , 2008, 2(3): 887
71 O. J. Dunn, J. Am. Stat. Assoc. , 1961, 56(293): 52
doi: 10.1080/01621459.1961.10482090
72 A particular decay mode defined by an experimental signature as done here may be an admixture of several, though dominated by the one denoted.
73 V. Barger, J. L. Hewett, and R. J. N. Phillips, Phys. Rev. D , 1990, 41(11): 3421
doi: 10.1103/PhysRevD.41.3421
74 H. P. Nilles, Phys. Rep. , 1984, 110(1-2): 1
doi: 10.1016/0370-1573(84)90008-5
75 H. E. Haber, and G. L. Kane, Phys. Rep. , 1985, 117(2-4): 75
doi: 10.1016/0370-1573(85)90051-1
76 The ALEPH Collaboration, The DELPHI Collaboration, The L3 Collaboration, and The OPAL Collaboration, Eur. Phys. J. C , 2006, 47: 547
77 T. Affolder, . [CDF Collaboration], Phys. Rev. Lett. , 2001, 86: 4472
doi: 10.1103/PhysRevLett.86.4472
78 A. Abulencia, . [CDF Collaboration], Phys. Rev. Lett. , 2006, 96: 011802
doi: 10.1103/PhysRevLett.96.011802
79 T. Aaltonen, . [CDF Collaboration], Phys. Rev. D , 2012, 85: 032005
doi: 10.1103/PhysRevD.85.032005
80 V. M. Abazov, . [D0 Collaboration], Phys. Rev. Lett. , 2005, 95(15): 151801
doi: 10.1103/PhysRevLett.95.151801
81 V. M. Abazov, . [D0 Collaboration], Phys. Rev. Lett. , 2006, 97(12): 121802
doi: 10.1103/PhysRevLett.97.121802
82 V. M. Abazov, . [D0 Collaboration], Phys. Rev. Lett. , 2008, 101(7): 071804
doi: 10.1103/PhysRevLett.101.071804
83 V. M. Abazov, . [D0 Collaboration], Phys. Rev. Lett. , 2008, 101(22): 221802
doi: 10.1103/PhysRevLett.101.221802
84 V. M. Abazov, . [D0 Collaboration], Phys. Rev. Lett. , 2009, 102(5): 051804
doi: 10.1103/PhysRevLett.102.051804
85 V. M. Abazov, . [D0 Collaboration], Phys. Rev. Lett. , 2010, 104(15): 151801
doi: 10.1103/PhysRevLett.104.151801
86 V. M. Abazov, . [D0 Collaboration], Phys. Lett. B , 2011, 698: 97
doi: 10.1016/j.physletb.2011.02.062
87 V. M. Abazov, . [D0 Collaboration], Phys. Rev. Lett. , 2011, 107(12): 121801
doi: 10.1103/PhysRevLett.107.121801
88 V. M. Abazov, . [D0 Collaboration], Phys. Lett. B , 2012, 707: 323
doi: 10.1016/j.physletb.2011.12.050
89 V. M. Abazov, . [D0 Collaboration], Phys. Lett. B , 2012, 710: 569
doi: 10.1016/j.physletb.2012.03.021
90 CMS Collaboration, Phys. Rev. Lett. , 2011, 106: 231801
doi: 10.1103/PhysRevLett.106.231801
91 ATLAS Collaboration, Phys. Lett. B , 2011, 705: 174
doi: 10.1016/j.physletb.2011.10.001
92 CMS Collaboration, Phys. Lett. B , 2012, 713: 68
doi: 10.1016/j.physletb.2012.05.028
93 S. Heinemeyer, W. Hollik, and G. Weiglein, Eur. Phys. J. C , 1999, 9: 343, FEYNHIGGS version 2.6.8 is used .
94 S. Heinemeyer, W. Hollik, and G. Weiglein, Comput. Phys. Commun. , 2000, 124(1): 76
doi: 10.1016/S0010-4655(99)00364-1
95 G. Degrassi, S. Heinemeyer, W. Hollik, P. Slavich, and G. Weiglein, Eur. Phys. J. C , 2003, 28(1): 133
doi: 10.1140/epjc/s2003-01152-2
96 M. Frank, T. Hahn, S. Heinemeyer, W. Hollik, H. Rzehak, and G. Weiglein, J. High Energy Phys. , 2007, 02: 047
97 L. Hofer, U. Nierste, and D. Shere, J. High Energy Phys. , 2009, 10: 081
98 D. Noth and M. Spira, Phys. Rev. Lett. , 2008, 101(18): 181801
doi: 10.1103/PhysRevLett.101.181801
99 MSUSY = 1 TeV, Xt = 2 TeV, M2 = 0.2 TeV, |μ| = 0.2 TeV, and mg = 0.8 TeV .
100 M. Carena, S. Heinemeyer, C. E. M. Wagner, and G. Weiglein, Eur. Phys. J. C , 2006, 45(3): 797
doi: 10.1140/epjc/s2005-02470-y
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