Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at √s=13 TeV

被引：0

作者：

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

Tumasyan, A. ^{[1
]}

Adam, W. ^{[2
]}

Ambrogi, F. ^{[2
]}

Bergauer, T. ^{[2
]}

Brandstetter, J. ^{[2
]}

Dragicevic, M. ^{[2
]}

Eroe, J. ^{[2
]}

Del Valle, A. Escalante ^{[2
]}

Flechl, M. ^{[2
]}

Fruehwirth, R. ^{[2
,213
]}

Jeitler, M. ^{[2
,213
]}

Krammer, N. ^{[2
]}

Kraetschmer, I ^{[2
]}

Liko, D. ^{[2
]}

Madlener, T. ^{[2
]}

Mikulec, I ^{[2
]}

Rad, N. ^{[2
]}

Schieck, J. ^{[2
,213
]}

Schoefbeck, R. ^{[2
]}

Spanring, M. ^{[2
]}

Spitzbart, D. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wulz, C-E ^{[2
,213
]}

Zarucki, M. ^{[2
]}

Drugakov, V ^{[3
]}

Mossolov, V ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

Darwish, M. R. ^{[4
]}

De Wolf, E. A. ^{[4
]}

Di Croce, D. ^{[4
]}

Janssen, X. ^{[4
]}

Lauwers, J. ^{[4
]}

Lelek, A. ^{[4
]}

Pieters, M. ^{[4
]}

Sfar, H. Rejeb ^{[4
]}

Van Haevermaet, H. ^{[4
]}

Van Mechelen, P. ^{[4
]}

Van Putte, S. ^{[4
]}

Van Remortel, N. ^{[4
]}

Blekman, F. ^{[5
]}

Bols, E. S. ^{[5
]}

Chhibra, S. S. ^{[5
]}

D'Hondt, J. ^{[5
]}

De Clercq, J. ^{[5
]}

Lontkovskyi, D. ^{[5
]}

Lowette, S. ^{[5
]}

Marchesini, I ^{[5
]}

Moortgat, S. ^{[5
]}

Moreels, L. ^{[5
]}

机构：

[1] Yerevan Phys Inst, Yerevan, Armenia

[2] Inst Hochenergiephys, Vienna, Austria

[3] Inst Nucl Problems, Minsk, BELARUS

[4] Univ Antwerp, Antwerp, Belgium

[5] Vrije Univ Brussel, Brussels, Belgium

[6] Univ Libre Bruxelles, Brussels, Belgium

[7] Univ Ghent, Ghent, Belgium

[8] Catholic Univ Louvain, Louvain La Neuve, 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] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[14] Univ Sofia, Sofia, Bulgaria

[15] Beihang Univ, Beijing, Peoples R China

[16] Tsinghua Univ, Dept Phys, Beijing, Peoples R China

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

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

[19] Univ Los Andes, Bogota, Colombia

[20] Univ Antioquia, Medellin, 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] Escuela Politec Nacl, Quito, Ecuador

[27] Univ San Francisco Quito, Quito, Ecuador

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

[29] NICPB, Tallinn, Estonia

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

[31] Helsinki Inst Phys, Helsinki, Finland

[32] Lappeenranta Univ Technol, Lappeenranta, Finland

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

[34] Inst Polytech Paris, Lab Leprince Ringuet, Ecole Polytech, CNRS,IN2P3, Palaiseau, France

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

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

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

[38] Georgian Tech Univ, Tbilisi, Georgia

[39] Tbilisi State Univ, Tbilisi, Georgia

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

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

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

[43] DESY, Hamburg, Germany

[44] Univ Hamburg, Hamburg, Germany

[45] Karlsruhe Inst Technol, Karlsruhe, Germany

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

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

[48] Natl Tech Univ Athens, Athens, Greece

[49] Univ Ioannina, Ioannina, Greece

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 04期

基金：

欧洲研究理事会; 欧盟地平线“2020”; 芬兰科学院; 巴西圣保罗研究基金会;

关键词：

Hadron-Hadron scattering (experiments); Higgs physics; Top physics; LOCALLY WEIGHTED REGRESSION; GLUON FUSION; PROGRAM;

D O I：

10.1007/JHEP04(2020)171

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A search is presented for additional scalar (H) or pseudoscalar (A) Higgs bosons decaying to a top quark pair in proton-proton collisions at a center-of-mass energy of 13 TeV. The data set analyzed corresponds to an integrated luminosity of 35.9 fb(-1) collected by the CMS experiment at the LHC. Final states with one or two charged leptons are considered. The invariant mass of the reconstructed top quark pair system and variables that are sensitive to the spin of the particles decaying into the top quark pair are used to search for signatures of the H or A bosons. The interference with the standard model top quark pair background is taken into account. A moderate signal-like deviation compatible with an A boson with a mass of 400 GeV is observed with a global significance of 1.9 standard deviations. New stringent constraints are reported on the strength of the coupling of the hypothetical bosons to the top quark, with the mass of the bosons ranging from 400 to 750 GeV and their total relative width from 0.5 to 25%. The results of the search are also interpreted in a minimal supersymmetric standard model scenario. Values of m(A) from 400 to 700 GeV are probed, and a region with values of tan beta below 1.0 to 1.5, depending on m(A), is excluded at 95% confidence level.

引用

页数：51

共 50 条

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Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Ambrogi, F.
Bergauer, T.
Brandstetter, J.
Dragicevic, M.
Ero, J.
Escalante Del Valle, A.
Flechl, M.
Fruehwirth, R.
Jeitler, M.
Krammer, N.
Kratschmer, I.
Liko, D.
Madlener, T.
Mikulec, I.
Rad, N.
Schieck, J.
Schofbeck, R.
Spanring, M.
Spitzbart, D.
Waltenberger, W.
Wulz, C. -E.
Zarucki, M.
Drugakov, V.
Mossolov, V.
Suarez Gonzalez, J.
Darwish, M. R.
De Wolf, E. A.
Di Croce, D.
Janssen, X.
Lauwers, J.
Lelek, A.
Pieters, M.
Rejeb Sfar, H.
Van Haevermaet, H.
Van Mechelen, P.
Van Putte, S.
Van Remortel, N.
Blekman, F.
Bols, E. S.
Chhibra, S. S.
D'Hondt, J.
De Clercq, J.
Lontkovskyi, D.
Lowette, S.
Marchesini, I.
Moortgat, S.
Moreels, L.
[J]. JOURNAL OF HIGH ENERGY PHYSICS, 2022, (03):
[2] Search for a heavy Higgs boson decaying to a pair of W bosons in proton-proton collisions at √s=13 TeV
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Ambrogi, F.
Bergauer, T.
Brandstetter, J.
Dragicevic, M.
Eroe, J.
Del Valle, A. Escalante
Flechl, M.
Fruehwirth, R.
Jeitler, M.
Krammer, N.
Kraetschmer, I.
Liko, D.
Madlener, T.
Mikulec, I.
Rad, N.
Schieck, J.
Schoefbeck, R.
Spanring, M.
Spitzbart, D.
Waltenberger, W.
Wulz, C. -E.
Zarucki, M.
Drugakov, V.
Mossolov, V.
Gonzalez, J. Suarez
Darwish, M. R.
De Wolf, E. A.
Di Croce, D.
Janssen, X.
Lauwers, J.
Lelek, A.
Pieters, M.
Sfar, H. Rejeb
Van Haevermaet, H.
Van Mechelen, P.
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Van Remortel, N.
Blekman, F.
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X. Janssen
J. Lauwers
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Adam, W.
Ambrogi, F.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Brondolin, E.
Dragicevic, M.
Eroe, J.
Flechl, M.
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Fruehwirth, R.
Ghete, V. M.
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Hrubec, J.
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Spitzbart, D.
Strauss, J.
Waltenberger, W.
Wittmann, J.
Wulz, C. -E.
Zarucki, M.
Chekhovsky, V.
Mossolov, V.
Gonzalez, J. Suarez
Shumeiko, N.
De Wolf, E. A.
Janssen, X.
Lauwers, J.
Van De Klundert, M.
Van Haevermaet, H.
Van Mechelen, P.
Van Remortel, N.
Van Spilbeeck, A.
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