Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at √ 8 = 7 TeV

The CMS Collaboration

doi:10.1007/JHEP06(2011)093

Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at √ 8 = 7 TeV

The CMS Collaboration

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

Abstract

A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions at s√ = 7TeV. Such events are expected in many new physics models, in particular a supersymmetric theory that is broken via a gauge-mediated mechanism, when the lightest charged and neutral gauginos are mass degenerate. The data sample used in this search corresponds to an integrated luminosity of 35 pb^-1 collected with the CMS detector at the LHC. No evidence of such an excess above the standard model backgrounds, dominated by W production, is found. The results are presented as 95% con dence level upper limits on the cross section for a benchmark gauge-mediated scenario, and are then converted into exclusion limits on the squark, gluino, and wino masses.

Original language	English
Article number	93
Journal	Journal of High Energy Physics
Volume	2011
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2011)093
Publication status	Published - 2011

Bibliographical note

Funding Information:
The following grant information was disclosed by the authors: The VEGA Scientific Agency: 1/0164/19, 1/0533/21. The APVV grant agency of the Slovak Republic: APVV-16-0121, APVV-20-0079. The UK grant of the Comenius University in Bratislava: UK/56/2019, UK/100/2020, UK/75/2021. The Institute of Geology of the Czech Academy of Sciences: RVO67985831. The NSP (National Scholarship program of Slovak Republic for the Support of Mobility of University Researchers): 33758. The Specific research project at the Faculty of Science at Masaryk University: MUNI/1263/2020. The Ministerio de Ciencia e Innovación and the Agencia Estatal de Investigación: I+D+I PID2020-117289GB-I00 funded by MCIN/AEI/10.13039/501100011033/. The Operational Programme Research, Development and Education –Project ‘Postdoc@MUNI’: No. CZ.02.2.69/0.0/0.0/16_027/0008360.

Funding Information:
The research reported in this work has been funded by: the VEGA Scientific Agency (Project No. 1/0164/19; Isaac Bonilla-Salomón and; Martin Sabol; and Project No. 1/0533/21; Martin Sabol); the APVV grant agency of the Slovak Republic (Project No. APVV-16-0121 and APVV-20-0079; Isaac Bonilla-Salomón; Martin Sabol); the UK grant of the Comenius University in Bratislava (Project No. UK/56/2019, UK/100/2020 and UK/75/2021; Isaac Bonilla-Salomón); the institutional support RVO67985831 of the Institute of Geology of the Czech Academy of Sciences (Stanislav Čermák); the NSP (National Scholarship program of Slovak Republic for the Support of Mobility of University Researchers (ID 33758 to Sílvia Jovells-Vaqué); the Specific research project at the Faculty of Science at Masaryk University, Brno (MUNI/1263/2020; Martin Ivanov). Àngel H. Luján also received funding from the Ministerio de Ciencia e Innovación and the Agencia Estatal de Investigación (Grant I+D+I PID2020-117289GB-I00 funded by MCIN/AEI/10.13039/501100011033/), the Operational Programme Research, Development and Education –Project ‘Postdoc@MUNI’ (No. CZ.02.2.69/0.0/0.0/16_027/0008360), the Generalitat de Catalunya (CERCA Program and 2017 SGR 116) and the ‘Programa Postdoctoral Beatriu de Pinós de la Secretaria d’Universitats i Recerca del Departament d’Empresa i Coneixement de la Generalitat de Catalunya’ (2019 BP 00154). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Keywords

Hadron
Scattering

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP06(2011)093

Cite this

@article{61649fed1b0e46449de5534c333d5f97,

title = "Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at √ 8 = 7 TeV",

abstract = "A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions at s√ = 7TeV. Such events are expected in many new physics models, in particular a supersymmetric theory that is broken via a gauge-mediated mechanism, when the lightest charged and neutral gauginos are mass degenerate. The data sample used in this search corresponds to an integrated luminosity of 35 pb-1 collected with the CMS detector at the LHC. No evidence of such an excess above the standard model backgrounds, dominated by W production, is found. The results are presented as 95% con dence level upper limits on the cross section for a benchmark gauge-mediated scenario, and are then converted into exclusion limits on the squark, gluino, and wino masses.",

keywords = "Hadron, Scattering",

author = "{The CMS Collaboration} and S. Chatrchyan and V. Khachatryan and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and Ghete, {V. M.} and J. Hammer and S. H{\"a}nsel and M. Hoch and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and M. Krammer and D. Liko and I. Mikulec and M. Pernicka and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and F. Teischinger and P. Wagner and W. Waltenberger and G. Walzel and E. Widl and Wulz, {C. E.} and V. Mossolov and N. Shumeiko and {Suarez Gonzalez}, J. and S. Bansal and L. Benucci and {De Wolf}, {E. A.} and X. Janssen and J. Maes and T. Maes and L. Mucibello and S. Ochesanu and B. Roland and R. Rougny and S. Choi and B. Hong and Park, {S. K.} and J. Yoo",

note = "Funding Information: The following grant information was disclosed by the authors: The VEGA Scientific Agency: 1/0164/19, 1/0533/21. The APVV grant agency of the Slovak Republic: APVV-16-0121, APVV-20-0079. The UK grant of the Comenius University in Bratislava: UK/56/2019, UK/100/2020, UK/75/2021. The Institute of Geology of the Czech Academy of Sciences: RVO67985831. The NSP (National Scholarship program of Slovak Republic for the Support of Mobility of University Researchers): 33758. The Specific research project at the Faculty of Science at Masaryk University: MUNI/1263/2020. The Ministerio de Ciencia e Innovaci{\'o}n and the Agencia Estatal de Investigaci{\'o}n: I+D+I PID2020-117289GB-I00 funded by MCIN/AEI/10.13039/501100011033/. The Operational Programme Research, Development and Education –Project {\textquoteleft}Postdoc@MUNI{\textquoteright}: No. CZ.02.2.69/0.0/0.0/16_027/0008360. Funding Information: The research reported in this work has been funded by: the VEGA Scientific Agency (Project No. 1/0164/19; Isaac Bonilla-Salom{\'o}n and; Martin Sabol; and Project No. 1/0533/21; Martin Sabol); the APVV grant agency of the Slovak Republic (Project No. APVV-16-0121 and APVV-20-0079; Isaac Bonilla-Salom{\'o}n; Martin Sabol); the UK grant of the Comenius University in Bratislava (Project No. UK/56/2019, UK/100/2020 and UK/75/2021; Isaac Bonilla-Salom{\'o}n); the institutional support RVO67985831 of the Institute of Geology of the Czech Academy of Sciences (Stanislav {\v C}erm{\'a}k); the NSP (National Scholarship program of Slovak Republic for the Support of Mobility of University Researchers (ID 33758 to S{\'i}lvia Jovells-Vaqu{\'e}); the Specific research project at the Faculty of Science at Masaryk University, Brno (MUNI/1263/2020; Martin Ivanov). {\`A}ngel H. Luj{\'a}n also received funding from the Ministerio de Ciencia e Innovaci{\'o}n and the Agencia Estatal de Investigaci{\'o}n (Grant I+D+I PID2020-117289GB-I00 funded by MCIN/AEI/10.13039/501100011033/), the Operational Programme Research, Development and Education –Project {\textquoteleft}Postdoc@MUNI{\textquoteright} (No. CZ.02.2.69/0.0/0.0/16_027/0008360), the Generalitat de Catalunya (CERCA Program and 2017 SGR 116) and the {\textquoteleft}Programa Postdoctoral Beatriu de Pin{\'o}s de la Secretaria d{\textquoteright}Universitats i Recerca del Departament d{\textquoteright}Empresa i Coneixement de la Generalitat de Catalunya{\textquoteright} (2019 BP 00154). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.",

year = "2011",

doi = "10.1007/JHEP06(2011)093",

language = "English",

volume = "2011",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "6",

}

TY - JOUR

T1 - Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at √ 8 = 7 TeV

AU - The CMS Collaboration

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hammer, J.

AU - Hänsel, S.

AU - Hoch, M.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Krammer, M.

AU - Liko, D.

AU - Mikulec, I.

AU - Pernicka, M.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Teischinger, F.

AU - Wagner, P.

AU - Waltenberger, W.

AU - Walzel, G.

AU - Widl, E.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Bansal, S.

AU - Benucci, L.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Maes, J.

AU - Maes, T.

AU - Mucibello, L.

AU - Ochesanu, S.

AU - Roland, B.

AU - Rougny, R.

AU - Choi, S.

AU - Hong, B.

AU - Park, S. K.

AU - Yoo, J.

N1 - Funding Information: The following grant information was disclosed by the authors: The VEGA Scientific Agency: 1/0164/19, 1/0533/21. The APVV grant agency of the Slovak Republic: APVV-16-0121, APVV-20-0079. The UK grant of the Comenius University in Bratislava: UK/56/2019, UK/100/2020, UK/75/2021. The Institute of Geology of the Czech Academy of Sciences: RVO67985831. The NSP (National Scholarship program of Slovak Republic for the Support of Mobility of University Researchers): 33758. The Specific research project at the Faculty of Science at Masaryk University: MUNI/1263/2020. The Ministerio de Ciencia e Innovación and the Agencia Estatal de Investigación: I+D+I PID2020-117289GB-I00 funded by MCIN/AEI/10.13039/501100011033/. The Operational Programme Research, Development and Education –Project ‘Postdoc@MUNI’: No. CZ.02.2.69/0.0/0.0/16_027/0008360. Funding Information: The research reported in this work has been funded by: the VEGA Scientific Agency (Project No. 1/0164/19; Isaac Bonilla-Salomón and; Martin Sabol; and Project No. 1/0533/21; Martin Sabol); the APVV grant agency of the Slovak Republic (Project No. APVV-16-0121 and APVV-20-0079; Isaac Bonilla-Salomón; Martin Sabol); the UK grant of the Comenius University in Bratislava (Project No. UK/56/2019, UK/100/2020 and UK/75/2021; Isaac Bonilla-Salomón); the institutional support RVO67985831 of the Institute of Geology of the Czech Academy of Sciences (Stanislav Čermák); the NSP (National Scholarship program of Slovak Republic for the Support of Mobility of University Researchers (ID 33758 to Sílvia Jovells-Vaqué); the Specific research project at the Faculty of Science at Masaryk University, Brno (MUNI/1263/2020; Martin Ivanov). Àngel H. Luján also received funding from the Ministerio de Ciencia e Innovación and the Agencia Estatal de Investigación (Grant I+D+I PID2020-117289GB-I00 funded by MCIN/AEI/10.13039/501100011033/), the Operational Programme Research, Development and Education –Project ‘Postdoc@MUNI’ (No. CZ.02.2.69/0.0/0.0/16_027/0008360), the Generalitat de Catalunya (CERCA Program and 2017 SGR 116) and the ‘Programa Postdoctoral Beatriu de Pinós de la Secretaria d’Universitats i Recerca del Departament d’Empresa i Coneixement de la Generalitat de Catalunya’ (2019 BP 00154). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

PY - 2011

Y1 - 2011

N2 - A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions at s√ = 7TeV. Such events are expected in many new physics models, in particular a supersymmetric theory that is broken via a gauge-mediated mechanism, when the lightest charged and neutral gauginos are mass degenerate. The data sample used in this search corresponds to an integrated luminosity of 35 pb-1 collected with the CMS detector at the LHC. No evidence of such an excess above the standard model backgrounds, dominated by W production, is found. The results are presented as 95% con dence level upper limits on the cross section for a benchmark gauge-mediated scenario, and are then converted into exclusion limits on the squark, gluino, and wino masses.

AB - A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions at s√ = 7TeV. Such events are expected in many new physics models, in particular a supersymmetric theory that is broken via a gauge-mediated mechanism, when the lightest charged and neutral gauginos are mass degenerate. The data sample used in this search corresponds to an integrated luminosity of 35 pb-1 collected with the CMS detector at the LHC. No evidence of such an excess above the standard model backgrounds, dominated by W production, is found. The results are presented as 95% con dence level upper limits on the cross section for a benchmark gauge-mediated scenario, and are then converted into exclusion limits on the squark, gluino, and wino masses.

KW - Hadron

KW - Scattering

UR - http://www.scopus.com/inward/record.url?scp=80053157397&partnerID=8YFLogxK

U2 - 10.1007/JHEP06(2011)093

DO - 10.1007/JHEP06(2011)093

M3 - Article

AN - SCOPUS:80053157397

SN - 1126-6708

VL - 2011

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 93

ER -

Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at √ 8 = 7 TeV

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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