Probing leptogenesis

被引：78

作者：

Chun, E. J. ^{[1
]}

Cvetic, G. ^{[2
]}

Dev, P. S. B. ^{[3
,4
]}

Drewes, M. ^{[5
,7
]}

Fong, C. S. ^{[6
]}

Garbrecht, B. ^{[7
]}

Hambye, T. ^{[8
]}

Harz, J. ^{[9
,10
,11
]}

Hernandez, P. ^{[12
,13
]}

Kim, C. S. ^{[14
,15
]}

Molinaro, E. ^{[16
]}

Nardi, E. ^{[17
]}

Racker, J. ^{[18
]}

Rius, N. ^{[19
]}

Zamora-Saa, J. ^{[20
]}

机构：

[1] Korea Inst Adv Study, Seoul 02455, South Korea

[2] Univ Tecn Federico Santa Maria, Dept Phys, Valparaiso, Chile

[3] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[4] Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA

[5] Catholic Univ Louvain, Ctr Cosmol Particle Phys & Phenomenol, B-1348 Louvain, Belgium

[6] Univ Sao Paulo, Inst Fis, CP 66318, BR-05315970 Sao Paulo, Brazil

[7] Tech Univ Munich, Phys Dept T70, James Franck Str 1, D-85748 Garching, Germany

[8] Univ Libre Bruxelles, Serv Phys Theor, Blvd Triomphe,CP225, B-1050 Brussels, Belgium

[9] Sorbonne Univ, ILP, 98 Bis Blvd Arago, F-75014 Paris, France

[10] Sorbonne Univ, UPMC, Paris 06, LPTHE,UMR 7589, F-75005 Paris, France

[11] CNRS, UMR 7589, LPTHE, F-75005 Paris, France

[12] Univ Valencia, Inst Fis Corpuscular, Catedrat Jose Beltran 2, Valencia, Spain

[13] CERN, Theory Div, Catedrat Jose Beltran 2, Madrid, Spain

[14] Yonsei Univ, Dept Phys, CH-1211 Geneva 23, Switzerland

[15] Yonsei Univ, IPAP, CH-1211 Geneva 23, Switzerland

[16] Univ Southern Denmark, Origins CP3, Campusvej 55, DK-5230 Odense M, Denmark

[17] Ist Nazl Fis Nucl, Lab Nazl Frascati, CP 13, I-00044 Frascati, Italy

[18] UNC, CONICET, Consejo Nacl Invest Cient & Tecn, Cordoba, Argentina

[19] Univ Valencia, CSIC, Inst Fis Corpuscular IFIC, Apartado Correos 22085, Valencia 46071, Spain

[20] Joint Inst Nucl Res, Dzhelepov Lab Nucl Problems, Dubna 141980, Russia

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2018年 / 33卷 / 5-6期

关键词：

Neutrino interactions; nonstandard-model neutrinos; right-handed neutrinos; extensions of electroweak gauge sector; supersymmetric models; DOUBLE-BETA DECAY; BARYON-NUMBER NONCONSERVATION; NEUTRAL HEAVY-LEPTONS; PROCESSES INVOLVING NEUTRINOS; ELECTROWEAK PHASE-TRANSITION; ELECTRIC-DIPOLE MOMENT; MODEL CP-VIOLATION; MAJORANA NEUTRINOS; DARK-MATTER; STERILE NEUTRINOS;

D O I：

10.1142/S0217751X18420058

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The focus of this paper lies on the possible experimental tests of leptogenesis scenarios. We consider both leptogenesis generated from oscillations, as well as leptogenesis from out-of-equilibrium decays. As the Akhmedov-Rubakov-Smirnov (ARS) mechanism allows for heavy neutrinos in the GeV range, this opens up a plethora of possible experimental tests, e.g. at neutrino oscillation experiments, neutrinoless double beta decay, and direct searches for neutral heavy leptons at future facilities. In contrast, testing leptogenesis from out-of-equilibrium decays is a quite difficult task. We comment on the necessary conditions for having successful leptogenesis at the TeV-scale. We further discuss possible realizations and their model specific testability in extended seesaw models, models with extended gauge sectors, and supersymmetric leptogenesis. Not being able to test high-scale leptogenesis directly, we present a way to falsify such scenarios by focusing on their washout processes. This is discussed specifically for the left-right symmetric model and the observation of a heavy W-R, as well as model independently when measuring Delta L = 2 washout processes at the LHC or neutrinoless double beta decay.

引用

页数：99

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