Interpreting the CMS l+l-jj plus missing transverse energy excess with a leptoquark model

被引：29

作者：

Allanach, Ben ^{[1
]}

Alves, Alexandre ^{[2
]}

Queiroz, Farinaldo S. ^{[3
,4
]}

Sinha, Kuver ^{[5
]}

Strumia, Alessandro ^{[6
,7
,8
]}

机构：

[1] Univ Cambridge, CMS, DAMTP, Cambridge CB3 0WA, England

[2] Univ Fed Sao Paulo, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil

[3] Univ Calif Santa Cruz, Inst Particle Phys, Dept Phys & Santa Cruz, Santa Cruz, CA 95064 USA

[4] Univ Fed Rio Grande do Norte, Int Inst Phys, BR-59078400 Natal, RN, Brazil

[5] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA

[6] Univ Pisa, Dipartimento Fis, I-56126 Pisa, Italy

[7] INFN, I-56126 Pisa, Italy

[8] NICPB, EE-12618 Tallinn, Estonia

来源：

PHYSICAL REVIEW D | 2015年 / 92卷 / 05期

基金：

巴西圣保罗研究基金会; 美国国家科学基金会;

关键词：

SCALAR LEPTOQUARKS;

D O I：

10.1103/PhysRevD.92.055023

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a model of leptoquarks (LQs) with a significant partial branching ratio into an extra sector, taken to be a viable dark matter candidate, other than the canonical lepton and jets final state. For LQs with mass around 500 GeV, the model reproduces the recent excess claimed by the CMS Collaboration in the l(+)l(-)jj is not an element of(T) final state: the event rate, the distribution in the dilepton invariant mass and the rapidity range are compatible with the data. The model is compatible with other collider bounds including LQ searches, as well as bounds from meson mixing and decays. Prospects of discovery at run II of the LHC are discussed.

引用

页数：7

共 39 条

[1]

Aad G, 2014, J HIGH ENERGY PHYS, DOI 10.1007/JHEP09(2014)176

[2]

Aad G, 2012, EUR PHYS J C, V72, DOI 10.1140/epjc/s10052-012-2039-5

[3] Interpreting a CMS excess in lljj plus missing-transverse-momentum with the golden cascade of the minimal supersymmetric standard model [J].

Allanach, Ben ;

Kvellestad, Anders ;

Raklev, Are .

PHYSICAL REVIEW D, 2015, 91 (11)

[4] MadGraph 5: going beyond [J].

Alwall, Johan ;

Herquet, Michel ;

Maltoni, Fabio ;

Mattelaer, Olivier ;

Stelzer, Tim .

JOURNAL OF HIGH ENERGY PHYSICS, 2011, (06)

[5]

[Anonymous], CMSPASEXO12041

[6]

[Anonymous], NUCL PHYS B

[7]

[Anonymous], ARXIVHEPPH9611232

[8] Two-loop neutrino mass generation through leptoquarks [J].

Babu, K. S. ;

Julio, J. .

NUCLEAR PHYSICS B, 2010, 841 (1-2) :130-156

[9] LEPTOQUARKS IN LEPTON-QUARK COLLISIONS [J].

BUCHMULLER, W ;

RUCKL, R ;

WYLER, D .

PHYSICS LETTERS B, 1987, 191 (04) :442-448

[10]

Buchmuller W, 1999, PHYS LETT B, V448, P320

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