Explaining a CMS eejj excess with R-parity violating supersymmetry and implications for neutrinoless double beta decay

被引：19

作者：

Allanach, Ben ^{[1
]}

Biswas, Sanjoy ^{[2
]}

Mondal, Subhadeep ^{[3
]}

Mitra, Manimala ^{[4
]}

机构：

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

[2] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[3] Indian Assoc Cultivat Sci, Dept Theoret Phys, Kolkata 700032, India

[4] Univ Durham, Dept Phys, Inst Particle Phys Phenomenol, Durham DH1 3LE, England

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 01期

关键词：

CONSTRAINTS; MODELS;

D O I：

10.1103/PhysRevD.91.011702

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A recent CMS search for the right-handed gauge boson W-R reports an interesting deviation from the Standard Model. The search has been conducted in the eejj channel and has shown a 2.8 sigma excess around m(eejj) similar to 2 TeV. In this work, we explain the reported CMS excess with R-parity violating supersymmetry. We consider resonant selectron and sneutrino production, followed by the three body decays of the neutralino and chargino via an R-parity violating coupling. We fit the excess for slepton masses around 2 TeV. The scenario can further be tested in neutrinoless double beta decay (0 nu beta beta) experiments. GERDA Phase-II will probe a significant portion of the good-fit parameter space.

引用

页数：5

共 37 条

[1] Results on Neutrinoless Double-β Decay of 76Ge from Phase I of the GERDA Experiment [J].

Agostini, M. ;

Allardt, M. ;

Andreotti, E. ;

Bakalyarov, A. M. ;

Balata, M. ;

Barabanov, I. ;

Heider, M. Barnabe ;

Barros, N. ;

Baudis, L. ;

Bauer, C. ;

Becerici-Schmidt, N. ;

Bellotti, E. ;

Belogurov, S. ;

Belyaev, S. T. ;

Benato, G. ;

Bettini, A. ;

Bezrukov, L. ;

Bode, T. ;

Brudanin, V. ;

Brugnera, R. ;

Budjas, D. ;

Caldwell, A. ;

Cattadori, C. ;

Chernogorov, A. ;

Cossavella, F. ;

Demidova, E. V. ;

Domula, A. ;

Egorov, V. ;

Falkenstein, R. ;

Ferella, A. ;

Freund, K. ;

Frodyma, N. ;

Gangapshev, A. ;

Garfagnini, A. ;

Gotti, C. ;

Grabmayr, P. ;

Gurentsov, V. ;

Gusev, K. ;

Guthikonda, K. K. ;

Hampel, W. ;

Hegai, A. ;

Heisel, M. ;

Hemmer, S. ;

Heusser, G. ;

Hofmann, W. ;

Hult, M. ;

Inzhechik, L. V. ;

Ioannucci, L. ;

Csathy, J. Janicsko ;

Jochum, J. .

PHYSICAL REVIEW LETTERS, 2013, 111 (12)

[2] Closer look at the possible CMS signal of a new gauge boson [J].

Aguilar-Saavedra, J. A. ;

Joaquim, F. R. .

PHYSICAL REVIEW D, 2014, 90 (11)

[3] LHC and B physics probes of neutrinoless double beta decay in supersymmetry without R-parity [J].

Allanach, B. C. ;

Kom, C. H. ;

Paes, H. .

JOURNAL OF HIGH ENERGY PHYSICS, 2009, (10)

[4] Large Hadron Collider Probe of Supersymmetric Neutrinoless Double-Beta-Decay Mechanism [J].

Allanach, B. C. ;

Kom, C. H. ;

Paes, H. .

PHYSICAL REVIEW LETTERS, 2009, 103 (09)

[5] Resonant slepton production at the LHC in models with an ultralight gravitino [J].

Allanach, BC ;

Guchait, M ;

Sridhar, K .

PHYSICS LETTERS B, 2004, 586 (3-4) :373-381

[6] Bounds on R-parity violating couplings at the weak scale and at the GUT scale -: art. no. 075014. [J].

Allanach, BC ;

Dedes, A ;

Dreiner, IK .

PHYSICAL REVIEW D, 1999, 60 (07)

[7] NEW VECTOR-SCALAR CONTRIBUTIONS TO NEUTRINOLESS DOUBLE-BETA DECAY AND CONSTRAINTS ON R-PARITY VIOLATION [J].

BABU, KS ;

MOHAPATRA, RN .

PHYSICAL REVIEW LETTERS, 1995, 75 (12) :2276-2279

[8]

Bai Y., ARXIV14074466

[9] R-parity-violating supersymmetry [J].

Barbier, R ;

Bérat, C ;

Besançon, M ;

Chemtob, M ;

Deandrea, A ;

Dudas, E ;

Fayet, P ;

Lavignac, S ;

Moreau, G ;

Perez, E ;

Sirois, Y .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2005, 420 (1-6) :1-195

[10] CalcHEP 3.4 for collider physics within and beyond the Standard Model [J].

Belyaev, Alexander ;

Christensen, Neil D. ;

Pukhov, Alexander .

COMPUTER PHYSICS COMMUNICATIONS, 2013, 184 (07) :1729-1769

← 1 2 3 4 →