Search for dark matter particles in proton-proton collisions at √8 = TeV using the razor variables

被引：0

作者：

Khachatryan, V. ^{[1
]}

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
,191
]}

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

Hartl, C. ^{[2
]}

Hoermann, N. ^{[2
]}

Hrubec, J. ^{[2
]}

Jeitler, M. ^{[2
,191
]}

Koenig, A. ^{[2
]}

Krammer, M. ^{[2
,191
]}

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
]}

Schoefbeck, R. ^{[2
]}

Strauss, J. ^{[2
]}

Treberer-Treberspurg, W. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wulz, C. -E. ^{[2
,191
]}

Mossolov, V. ^{[3
]}

Shumeiko, N. ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

Alderweireldt, S. ^{[4
]}

Cornelis, T. ^{[4
]}

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

Janssen, X. ^{[4
]}

Knutsson, A. ^{[4
]}

Lauwers, J. ^{[4
]}

Luyckx, S. ^{[4
]}

De Klundert, M. Van ^{[4
]}

Van Haevermaet, H. ^{[4
]}

Van Mechelen, P. ^{[4
]}

Van Remortel, N. ^{[4
]}

Van Spilbeeck, A. ^{[4
]}

Abu Zeid, S. ^{[5
]}

机构：

[1] Yerevan Phys Inst, Yerevan, Armenia

[2] OeAW, Inst Hochenergiephys, Vienna, Austria

[3] Natl Ctr Particle & High Energy Phys, 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] Univ Mons, Mons, Belgium

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

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

[12] Univ Estadual Paulista, Sao Paulo, Brazil

[13] Univ Fed ABC, Sao Paulo, Brazil

[14] Inst Nucl Energy Res, Sofia, Bulgaria

[15] Univ Sofia, Sofia, Bulgaria

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

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

[22] Rudjer Boskovic Inst, Zagreb, Croatia

[23] Univ Cyprus, Nicosia, Cyprus

[24] Charles Univ Prague, Prague, Czech Republic

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

[26] NICPB, Tallinn, Estonia

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

[28] Helsinki Inst Phys, Helsinki, Finland

[29] Lappeenranta Univ Technol, Lappeenranta, Finland

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

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

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

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

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

[35] Georgian Tech Univ, Tbilisi, Georgia

[36] Tbilisi State Univ, Tbilisi, Georgia

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

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

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

[40] DESY, Hamburg, Germany

[41] Univ Hamburg, Hamburg, Germany

[42] Inst Expt Kernphys, Karlsruhe, Germany

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

[44] Univ Athens, Athens, Greece

[45] Univ Ioannina, Ioannina, Greece

[46] Wigner Res Ctr Phys, Budapest, Hungary

[47] ATOMKI, Inst Nucl Res, Debrecen, Hungary

[48] Univ Debrecen, Debrecen, Hungary

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

[50] Panjab Univ, Chandigarh, India

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 12期

基金：

芬兰科学院; 美国国家科学基金会; 巴西圣保罗研究基金会; 英国科学技术设施理事会; 新加坡国家研究基金会; 俄罗斯基础研究基金会; 中国国家自然科学基金; 奥地利科学基金会;

关键词：

Hadron-Hadron scattering (experiments); Supersymmetry; MODEL; EXTENSION; GALAXIES; CLUSTERS;

D O I：

10.1007/JHEP12(2016)088

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 for dark matter particles directly produced in proton-proton collisions recorded by the CMS experiment at the LHC is presented. The data correspond to an integrated luminosity of 18.8 fb(-1), at a center-of-mass energy of 8 TeV. The event selection requires at least two jets and no isolated leptons. The razor variables are used to quantify the transverse momentum balance in the jet momenta. The study is performed separately for events with and without jets originating from b quarks. The observed yields are consistent with the expected backgrounds and, depending on the nature of the production mechanism, dark matter production at the LHC is excluded at 90% confidence level for a mediator mass scale I > below 1 TeV. The use of razor variables yields results that complement those previously published.

引用

页数：48

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