Combined search for anomalous pseudoscalar HW couplings in VH(H → b(b)over-bar) production and H → VV decay

被引：27

作者：

Adam, W. ^{[1
]}

Asilar, E. ^{[1
]}

Bergauer, T. ^{[1
]}

Brandstetter, J. ^{[1
]}

Brondolin, E. ^{[1
]}

Dragicevic, M. ^{[1
]}

Ero, J. ^{[1
]}

Flechl, M. ^{[1
]}

Friedl, M. ^{[1
]}

Fruhwirth, R. ^{[1
]}

Ghete, V. M. ^{[1
]}

Hartl, C. ^{[1
]}

Hormann, N. ^{[1
]}

Hrubec, J. ^{[1
]}

Jeitler, M. ^{[1
]}

Knunz, V. ^{[1
]}

Konig, A. ^{[1
]}

Krammer, M. ^{[1
]}

Kratschmer, I. ^{[1
]}

Liko, D. ^{[1
]}

Matsushita, T. ^{[1
]}

Mikulec, I. ^{[1
]}

Rabady, D. ^{[1
]}

Rad, N. ^{[1
]}

Rahbaran, B. ^{[1
]}

Rohringer, H. ^{[1
]}

Schieck, J. ^{[1
]}

Schofbeck, R. ^{[1
]}

Strauss, J. ^{[1
]}

Treberer-Treberspurg, W. ^{[1
]}

Waltenberger, W. ^{[1
]}

Wulz, C. -E. ^{[1
]}

Mossolov, V. ^{[2
]}

Shumeiko, N. ^{[2
]}

Gonzalez, J. Suarez ^{[2
]}

Alderweireldt, S. ^{[3
]}

Cornelis, T. ^{[3
]}

De Wolf, E. A. ^{[3
]}

Janssen, X. ^{[3
]}

Knutsson, A. ^{[3
]}

Lauwers, J. ^{[3
]}

Luyckx, S. ^{[3
]}

De Klundert, M. Van ^{[3
]}

Van Haevermaet, H. ^{[3
]}

Van Mechelen, R. ^{[3
]}

Van Remortel, N. ^{[3
]}

Van Spilbeeck, A. ^{[3
]}

Abu Zeid, S. ^{[4
]}

Blekman, F. ^{[4
]}

D'Hondt, J. ^{[4
]}

机构：

[1] OeAW, Inst Hochenergiephys, Vienna, Austria

[2] Natl Ctr Particle & High Energy Phys, Minsk, BELARUS

[3] Univ Antwerp, Antwerp, Belgium

[4] Vrije Univ Brussel, Brussels, Belgium

[5] Univ Libre Bruxelles, Brussels, Belgium

[6] Univ Ghent, Ghent, Belgium

[7] Catholic Univ Louvain, Louvain La Neuve, Belgium

[8] Univ Mons, Mons, Belgium

[9] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

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

[11] Univ Estadual Paulista, Sao Paulo, Brazil

[12] Univ Fed ABC, Sao Paulo, Brazil

[13] Inst Nucl Energy Res, Sofia, Bulgaria

[14] Univ Sofia, Sofia, Bulgaria

[15] Inst High Energy Phys, Beijing, Peoples R China

[16] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[17] Univ Los Andes, Bogota, Colombia

[18] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[19] Univ Split, Fac Sci, Split, Croatia

[20] Rudjer Boskovic Inst, Zagreb, Croatia

[21] Univ Cyprus, Nicosia, Cyprus

[22] Charles Univ Prague, Prague, Czech Republic

[23] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt

[24] NICPB, Tallinn, Estonia

[25] Univ Helsinki, Dept Phys, Helsinki, Finland

[26] Helsinki Inst Phys, Helsinki, Finland

[27] Lappeenranta Univ Technol, Lappeenranta, Finland

[28] CEA Saclay, DSM IRFU, Gif Sur Yvette, France

[29] Ecole Polytech, Lab Leprince Ringuet, IN2P3 CNRS, Palaiseau, France

[30] Univ Haute Alsace Mulhouse, Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, CNRS IN2P3, Strasbourg, France

[31] CNRS IN2P3, Inst Natl Phys Nucl & Phys Particules, Ctr Calcul, Villeurbanne, France

[32] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France

[33] Georgian Tech Univ, Tbilisi, Georgia

[34] Tbilisi State Univ, Tbilisi, Georgia

[35] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany

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

[37] Rhein Westfal TH Aachen, Phys Inst B, Aachen, Germany

[38] Deutsch Elektronensynchrotron, Hamburg, Germany

[39] Univ Hamburg, Hamburg, Germany

[40] Inst Expt Kernphys, Karlsruhe, Germany

[41] NCSR Demokritos, Inst Nucl & Particle Phys INPP, Aghia Paraskevi, Greece

[42] Natl & Kapodistrian Univ Athens, Athens, Greece

[43] Univ Ioannina, Ioannina, Greece

[44] Wigner Res Ctr Phys, Budapest, Hungary

[45] Inst Nucl Res ATOMKI, Debrecen, Hungary

[46] Inst Nucl Res ATOMKI, Debrecen, Hungary

[47] Univ Debrecen, Debrecen, Hungary

[48] Natl Inst Sci Educ & Res, Bhubaneswar, Orissa, India

[49] Panjab Univ, Chandigarh, India

[50] Univ Delhi, Delhi, India

来源：

PHYSICS LETTERS B | 2016年 / 759卷

基金：

巴西圣保罗研究基金会; 美国国家科学基金会; 芬兰科学院; 欧洲研究理事会;

关键词：

CMS; Physics; Higgs; BSM; BROKEN SYMMETRIES; WH;

D O I：

10.1016/j.physletb.2016.06.004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V (= W or Z) in a sample of proton-proton collision events corresponding to an integrated luminosity of 18.9 fb(-1) at a center-of-mass energy of 8 TeV is presented. Events consistent with the topology of associated VH production, where the Higgs boson decays to a pair of bottom quarks and the vector boson decays leptonically, are analyzed. The consistency of data with a potential pseudoscalar contribution to the HVV interaction, expressed by the effective pseudoscalar cross section fractions f(a3), is assessed by means of profile likelihood scans. Results are given for the VH channels alone and for a combined analysis of the VH and previously published H -> VV channels. Under certain assumptions, f(a3)(ZZ) > 0.0034 is excluded at 95% confidence level in the combination. Scenarios in which these assumptions are relaxed are also considered. (C) 2016 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

引用

页码：672 / 696

页数：25

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