Freeze-in dark matter within the seesaw mechanism

被引：1

作者：

Lucente, Michele ^{[1
,2
,3
]}

机构：

[1] Univ Bologna, Dipartimento Fis & Astron, Via Irnerio 46, I-40126 Bologna, Italy

[2] INFN Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[3] Rhein Westfal TH Aachen, Inst Theoret Particle Phys & Cosmol TTK, D-52056 Aachen, Germany

来源：

PHYSICS LETTERS B | 2023年 / 846卷

关键词：

Type-I seesaw; Dark matter; Freeze-in; Neutrinos; Lepton number symmetry; LYMAN-ALPHA FOREST; STERILE NEUTRINOS; MASSES; CONSTRAINTS; VIOLATION; SYMMETRY; DECAYS; VMSM; MSM;

D O I：

10.1016/j.physletb.2023.138206

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that the minimal Type-I Seesaw mechanism can successfully account for the observed dark matter abundance in the form of a keV sterile neutrino. This population can be produced by the decay of the heavier neutral leptons, with masses above the electroweak mass scale, while they are in thermal equilibrium in the early Universe (freeze-in). Moreover, the implementation of the relevant phenomenological constraints (relic abundance, indirect detection and structure formation) on this model automatically selects a region of the parameter space featuring an approximate lepton number symmetry.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

引用

页数：7

共 87 条

[1] Looking for the minimal inverse seesaw realisation [J].

Abada, A. ;

Lucente, M. .

NUCLEAR PHYSICS B, 2014, 885 :651-678

[2] Low-scale leptogenesis with three heavy neutrinos [J].

Abada, Asmaa ;

Arcadi, Giorgio ;

Domcke, Valerie ;

Drewes, Marco ;

Klaric, Juraj ;

Lucente, Michele .

JOURNAL OF HIGH ENERGY PHYSICS, 2019, (01)

[3] Neutrino masses, leptogenesis and dark matter from small lepton number violation? [J].

Abada, Asmaa ;

Arcadi, Giorgio ;

Domcke, Valerie ;

Lucente, Michele .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2017, (12)

[4] Lepton number violation as a key to low-scale leptogenesis [J].

Abada, Asmaa ;

Arcadi, Giorgio ;

Domcke, Valerie ;

Lucente, Michele .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2015, (11)

[5] Dark matter in the minimal inverse seesaw mechanism [J].

Abada, Asmaa ;

Arcadi, Giorgio ;

Lucente, Michele .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2014, (10)

[6] Low energy effects of neutrino masses [J].

Abada, Asmaa ;

Biggio, Carla ;

Bonnet, Florian ;

Gavela, Maria B. ;

Hambye, Thomas .

JOURNAL OF HIGH ENERGY PHYSICS, 2007, (12)

[7] Planck 2018 results: VI. Cosmological parameters [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Battye, R. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Challinor, A. ;

Chiang, H. C. ;

Chluba, J. ;

Colombo, L. P. L. ;

Combet, C. ;

Contreras, D. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Zotti, G. ;

Delabrouille, J. ;

Delouis, J. -M. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Dusini, S. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. .

ASTRONOMY & ASTROPHYSICS, 2020, 641

[8] Baryogenesis via neutrino oscillations [J].

Akhmedov, EK ;

Rubakov, VA ;

Smirnov, AY .

PHYSICAL REVIEW LETTERS, 1998, 81 (07) :1359-1362

[9] The vMSM, dark matter and neutrino masses [J].

Asaka, T ;

Blanchet, S ;

Shaposhnikov, M .

PHYSICS LETTERS B, 2005, 631 (04) :151-156

[10] The vMSM, dark matter and baryon asymmetry of the universe [J].

Asaka, T ;

Shaposhnikov, M .

PHYSICS LETTERS B, 2005, 620 (1-2) :17-26

← 1 2 3 4 5 6 7 8 9 →