Search for Higgs boson pair production in the bbτ final state in proton-proton collisions at √(s)=8 TeV

被引：13

作者：

Sirunyan, A. M. ^{[1
]}

Tumasyan, A. ^{[1
]}

Adam, W. ^{[2
]}

Asilar, E. ^{[2
]}

Bergauer, T. ^{[2
]}

Brandstetter, J. ^{[2
]}

Brondolin, E. ^{[2
]}

Dragicevic, M. ^{[2
]}

Eroe, J. ^{[2
]}

Flechl, M. ^{[2
]}

Friedl, M. ^{[2
]}

Fruehwirth, R. ^{[2
,199
]}

Ghete, V. M. ^{[2
]}

Hartl, C. ^{[2
]}

Hoermann, N. ^{[2
]}

Hrubec, J. ^{[2
]}

Jeitler, M. ^{[2
,199
]}

Koenig, A. ^{[2
]}

Kraetschmer, I. ^{[2
]}

Liko, D. ^{[2
]}

Matsushita, T. ^{[2
]}

Mikulec, I. ^{[2
]}

Rabady, D. ^{[2
]}

Rad, N. ^{[2
]}

Rahbaran, B. ^{[2
]}

Rohringer, H. ^{[2
]}

Schieck, J. ^{[2
,199
]}

Strauss, J. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wulz, C. -E. ^{[2
,199
]}

Chekhovsky, V. ^{[3
]}

Dvornikov, O. ^{[3
]}

Dydyshka, Y. ^{[3
]}

Emeliantchik, I. ^{[3
]}

Litomin, A. ^{[3
]}

Makarenko, V. ^{[3
]}

Mossolov, V. ^{[3
]}

Stefanovitch, R. ^{[3
]}

Gonzalez, J. Suarez ^{[3
,179
]}

Zykunov, V. ^{[3
]}

Shumeiko, N. ^{[4
]}

Alderweireldt, S. ^{[5
]}

De Wolf, E. A. ^{[5
]}

Janssen, X. ^{[5
]}

Lauwers, J. ^{[5
]}

Van De Klundert, M. ^{[5
]}

Van Haevermaet, H. ^{[5
]}

Van Mechelen, P. ^{[5
]}

Van Remortel, N. ^{[5
]}

Van Spilbeeck, A. ^{[5
]}

机构：

[1] Yerevan Phys Inst, Yerevan, Armenia

[2] Inst Hochenergiephys, Vienna, Austria

[3] Inst Nucl Problems, Minsk, BELARUS

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

[5] Univ Antwerp, Antwerp, Belgium

[6] Vrije Univ Brussel, Brussels, Belgium

[7] Univ Libre Bruxelles, Brussels, Belgium

[8] Univ Ghent, Ghent, Belgium

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

[10] Univ Mons, Mons, Belgium

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

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

[13] Univ Estadual Paulista, Sao Paulo, Brazil

[14] Univ Fed ABC, Sao Paulo, Brazil

[15] Bulgaria Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[16] Univ Sofia, Sofia, Bulgaria

[17] Beihang Univ, Beijing, Peoples R China

[18] Inst High Energy Phys, 194 Beijing, Peoples R China

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

[20] Univ Los Andes, Bogota, Colombia

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

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

[23] Inst Rudjer Boskovic, Zagreb, Croatia

[24] Univ Cyprus, Nicosia, Cyprus

[25] Charles Univ Prague, Prague, Czech Republic

[26] Univ San Francisco Quito, Quito, Ecuador

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

[28] Nat Inst Chem Phys & Biophys, Tallinn, Estonia

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

[30] Helsinki Inst Phys, Helsinki, Finland

[31] Lappeenranta Univ Technol, Lappeenranta, Finland

[32] Univ Paris Saclay, CEA, IRFU, Gif Sur Yvette, France

[33] Univ Paris Saclay, Ecole Polytech, Lab Leprince Ringuet, CNRS IN2P3, Palaiseau, France

[34] Univ Strasbourg, CNRS, IPHC, UMR 7178, Strasbourg, France

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

[36] Univ Claude Bernard Lyon 1, Univ Lyon, Inst Phys Nucl Lyon, CNRS IN2P3, Villeurbanne, France

[37] Georgian Tech Univ, Tbilisi, Georgia

[38] Tbilisi State Univ, Tbilisi, Georgia

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

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

[41] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany

[42] Deutsch Elek Synchrotron, Hamburg, Germany

[43] Univ Hamburg, Hamburg, Germany

[44] Inst Expt Kernphys, Karlsruhe, Germany

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

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

[47] Univ Ioannina, Ioannina, Greece

[48] Eotvos Lorand Univ, MTA ELTE Lendulet CMS Particle & Nucl Phys Grp, Budapest, Hungary

[49] Wigner Res Ctr Phys, Budapest, Hungary

[50] Inst Nucl Res ATOMKI, Debrecen, Hungary

来源：

PHYSICAL REVIEW D | 2017年 / 96卷 / 07期

基金：

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

关键词：

HIERARCHY;

D O I：

10.1103/PhysRevD.96.072004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Results are presented from a search for production of Higgs boson pairs (HH) where one boson decays to a pair of b quarks and the other to a t lepton pair. This work is based on proton-proton collision data collected by the CMS experiment at root(s) = 8 TeV, corresponding to an integrated luminosity of 18.3 fb (TM) (1). Resonant and nonresonant modes of HH production have been probed and no significant excess relative to the background-only hypotheses has been found in either mode. Upper limits on cross sections of the two HH production modes have been set. The results have been combined with previously published searches at root(s) = 8 TeV, in decay modes to two photons and two b quarks, as well as to four b quarks, which also show no evidence for a signal. Limits from the combination have been set on resonant HH production by an unknown particle X in the mass range m (x)= 300 GeV to m (x)= 1000 GeV. For resonant production of spin 0 (spin 2) particles, the observed 95%' CL upper limit is 1.13 pb (1.09 pb) at m (x)= 300 GeV and to 21 fb (18 fb) at m (x)= 1000 GeV. For nonresonant HH production, a limit of 43 times the rate predicted by the standard model has been set.

引用

页数：25

共 50 条

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Adam, W.
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Bergauer, T.
Chatterjee, S.
Damanakis, K.
Dragicevic, M.
Del Valle, A. Escalante
Fruhwirth, R.
Jeitler, M.
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Liko, D.
Mikulec, I
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Fruehwirth, R.
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Hrubec, J.
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Mikulec, I.
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Rohringer, H.
Schieck, J.
Schoefbeck, R.
Spanring, M.
Spitzbart, D.
Taurok, A.
Waltenberger, W.
Wittmann, J.
Wulz, C. -E.
Zarucki, M.
Chekhovsky, V.
Mossolov, V.
Gonzalez, J. Suarez
De Wolf, E. A.
Di Croce, D.
Janssen, X.
Lauwers, J.
Pieters, M.
Van de Klundert, M.
Janssen, X.
Lauwers, J.
Pieters, M.
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Wittmann, J.
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Zarucki, M.
Chekhovsky, V.
Mossolov, V.
Gonzalez, J. Suarez
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Di Croce, D.
Janssen, X.
Lauwers, J.
Van Haevermaet, H.
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