Search for Resonant Production of High-Mass Photon Pairs in Proton-Proton Collisions at s =8 and 13 TeV

CMS Collaboration

doi:10.1103/PhysRevLett.117.051802

Search for Resonant Production of High-Mass Photon Pairs in Proton-Proton Collisions at s =8 and 13 TeV

CMS Collaboration

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
Vrije Universiteit Brussel
Texas A&M University
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Université libre de Bruxelles
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Institut Pluridisciplinaire - Hubert Curien (IPHC)
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Beihang University
CAS - Institute of High Energy Physics
German Electron Synchrotron
Universidad de los Andes Colombia
Universidad de Cantabria
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Ruder Boskovic Institute
University of Cyprus
Charles University
Joint Institute for Nuclear Research
Universidad San Francisco de Quito
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Helwan University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
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RWTH Aachen University
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Karlsruhe Institute of Technology
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University of Debrecen
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Indian Institute of Science Education and Research Bhopal
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Panjab University
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Saha Institute of Nuclear Physics
Indian Institute of Technology Madras
Bhabha Atomic Research Centre
Tata Institute of Fundamental Research
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University College Dublin
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Abstract

A search for the resonant production of high-mass photon pairs is presented. The analysis is based on samples of proton-proton collision data collected by the CMS experiment at center-of-mass energies of 8 and 13 TeV, corresponding to integrated luminosities of 19.7 and 3.3 fb-1, respectively. The interpretation of the search results focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4 TeV and with widths, relative to the mass, between 1.4×10-4 and 5.6×10-2. Limits are set on scalar resonances produced through gluon-gluon fusion, and on Randall-Sundrum gravitons. A modest excess of events compatible with a narrow resonance with a mass of about 750 GeV is observed. The local significance of the excess is approximately 3.4 standard deviations. The significance is reduced to 1.6 standard deviations once the effect of searching under multiple signal hypotheses is considered. More data are required to determine the origin of this excess.

Original language	English
Article number	051802
Journal	Physical Review Letters
Volume	117
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.117.051802
Publication status	Published - 28 Jul 2016
Externally published	Yes

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10.1103/PhysRevLett.117.051802

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@article{3f806eb1ffd74c13a40da35d5f482aff,

title = "Search for Resonant Production of High-Mass Photon Pairs in Proton-Proton Collisions at s =8 and 13 TeV",

abstract = "A search for the resonant production of high-mass photon pairs is presented. The analysis is based on samples of proton-proton collision data collected by the CMS experiment at center-of-mass energies of 8 and 13 TeV, corresponding to integrated luminosities of 19.7 and 3.3 fb-1, respectively. The interpretation of the search results focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4 TeV and with widths, relative to the mass, between 1.4×10-4 and 5.6×10-2. Limits are set on scalar resonances produced through gluon-gluon fusion, and on Randall-Sundrum gravitons. A modest excess of events compatible with a narrow resonance with a mass of about 750 GeV is observed. The local significance of the excess is approximately 3.4 standard deviations. The significance is reduced to 1.6 standard deviations once the effect of searching under multiple signal hypotheses is considered. More data are required to determine the origin of this excess.",

author = "\{CMS Collaboration\} and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and N. Rad and B. Rahbaran and H. Rohringer and J. Schieck and J. Strauss and W. Treberer-Treberspurg and W. Waltenberger and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and \{De Wolf\}, \{E. A.\} and X. Janssen and J. Lauwers and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and \{Van Spilbeeck\}, A. and \{Abu Zeid\}, S. and F. Blekman and J. D'Hondt and N. Daci and \{De Bruyn\}, I. and O. Bouhali",

note = "Publisher Copyright: {\textcopyright} 2016 CERN.",

year = "2016",

month = jul,

day = "28",

doi = "10.1103/PhysRevLett.117.051802",

language = "English",

volume = "117",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Search for Resonant Production of High-Mass Photon Pairs in Proton-Proton Collisions at s =8 and 13 TeV

AU - CMS Collaboration

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - König, A.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rad, N.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Strauss, J.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Lauwers, J.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Abu Zeid, S.

AU - Blekman, F.

AU - D'Hondt, J.

AU - Daci, N.

AU - De Bruyn, I.

AU - Bouhali, O.

PY - 2016/7/28

Y1 - 2016/7/28

N2 - A search for the resonant production of high-mass photon pairs is presented. The analysis is based on samples of proton-proton collision data collected by the CMS experiment at center-of-mass energies of 8 and 13 TeV, corresponding to integrated luminosities of 19.7 and 3.3 fb-1, respectively. The interpretation of the search results focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4 TeV and with widths, relative to the mass, between 1.4×10-4 and 5.6×10-2. Limits are set on scalar resonances produced through gluon-gluon fusion, and on Randall-Sundrum gravitons. A modest excess of events compatible with a narrow resonance with a mass of about 750 GeV is observed. The local significance of the excess is approximately 3.4 standard deviations. The significance is reduced to 1.6 standard deviations once the effect of searching under multiple signal hypotheses is considered. More data are required to determine the origin of this excess.

AB - A search for the resonant production of high-mass photon pairs is presented. The analysis is based on samples of proton-proton collision data collected by the CMS experiment at center-of-mass energies of 8 and 13 TeV, corresponding to integrated luminosities of 19.7 and 3.3 fb-1, respectively. The interpretation of the search results focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4 TeV and with widths, relative to the mass, between 1.4×10-4 and 5.6×10-2. Limits are set on scalar resonances produced through gluon-gluon fusion, and on Randall-Sundrum gravitons. A modest excess of events compatible with a narrow resonance with a mass of about 750 GeV is observed. The local significance of the excess is approximately 3.4 standard deviations. The significance is reduced to 1.6 standard deviations once the effect of searching under multiple signal hypotheses is considered. More data are required to determine the origin of this excess.

UR - https://www.scopus.com/pages/publications/84982740536

U2 - 10.1103/PhysRevLett.117.051802

DO - 10.1103/PhysRevLett.117.051802

M3 - Article

AN - SCOPUS:84982740536

SN - 0031-9007

VL - 117

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 051802

ER -

Search for Resonant Production of High-Mass Photon Pairs in Proton-Proton Collisions at s =8 and 13 TeV

Abstract

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