Baryogenesis from Strong CP Violation and the QCD Axion

被引：64

作者：

Servant, Geraldine ^{[1
,2
]}

机构：

[1] Univ Autonoma Barcelona, Inst Catalana Recerca & Estudis Avancat, E-08193 Barcelona, Spain

[2] Univ Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.113.171803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that strong CP violation from the QCD axion can be responsible for the matter antimatter asymmetry of the Universe in the context of cold electroweak baryogenesis if the electroweak phase transition is delayed below the GeV scale. This can occur naturally if the Higgs couples to a O(100) GeV dilaton, as expected in some models where the Higgs is a pseudo-Nambu-Goldstone boson of a new strongly interacting sector at the TeV scale. The existence of such a second scalar resonance with a mass and properties similar to the Higgs boson will soon be tested at the LHC. In this context, the QCD axion would not only solve the strong CP problem, but also the matter antimatter asymmetry and dark matter.

引用

页数：5

共 37 条

[1] Planck 2013 results. XVI. Cosmological parameters [J].

Ade, P. A. R. ;

Aghanim, N. ;

Armitage-Caplan, C. ;

Arnaud, M. ;

Ashdown, M. ;

Atrio-Barandela, F. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bobin, J. ;

Bock, J. J. ;

Bonaldi, A. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Bridges, M. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cappellini, B. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chen, X. ;

Chiang, H. C. ;

Chiang, L. -Y ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. .

ASTRONOMY & ASTROPHYSICS, 2014, 571

[2] False vacuum decay after inflation [J].

Asaka, T ;

Buchmüller, W ;

Covi, L .

PHYSICS LETTERS B, 2001, 510 (1-4) :271-276

[3] Improved experimental limit on the electric dipole moment of the neutron [J].

Baker, C. A. ;

Doyle, D. D. ;

Geltenbort, P. ;

Green, K. ;

van der Grinten, M. G. D. ;

Harris, P. G. ;

Iaydjiev, P. ;

Ivanov, S. N. ;

May, D. J. R. ;

Pendlebury, J. M. ;

Richardson, J. D. ;

Shiers, D. ;

Smith, K. F. .

PHYSICAL REVIEW LETTERS, 2006, 97 (13)

[4] Differentiating the Higgs Boson from the Dilaton and Radion at Hadron Colliders [J].

Barger, Vernon ;

Ishida, Muneyuki ;

Keung, Wai-Yee .

PHYSICAL REVIEW LETTERS, 2012, 108 (10)

[5] A naturally light dilaton and a small cosmological constant [J].

Bellazzini, Brando ;

Csaki, Csaba ;

Hubisz, Jay ;

Serra, Javi ;

Terning, John .

EUROPEAN PHYSICAL JOURNAL C, 2014, 74 (03) :1-16

[6] A higgs-like dilaton [J].

Bellazzini, Brando ;

Csaki, Csaba ;

Hubisz, Jay ;

Serra, Javi ;

Terning, John .

EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (02) :1-17

[7] Nonequilibrium Goldstone phenomenon in tachyonic preheating -: art. no. 063512 [J].

Borsányi, S ;

Patkós, A ;

Sexty, D .

PHYSICAL REVIEW D, 2003, 68 (06)

[8] THE EFFECT OF DILATONS ON THE ELECTROWEAK PHASE-TRANSITION [J].

BUCHMULLER, W ;

WYLER, D .

PHYSICS LETTERS B, 1990, 249 (02) :281-285

[9] Phenomenology and cosmology of an electroweak pseudo-dilaton and electroweak baryons [J].

Campbell, Bruce A. ;

Ellis, John ;

Olive, Keith A. .

JOURNAL OF HIGH ENERGY PHYSICS, 2012, (03)

[10] Higgs phenomenology in the Minimal Dilaton Model after Run I of the LHC [J].

Cao, Junjie ;

He, Yangle ;

Wu, Peiwen ;

Zhang, Mengchao ;

Zhu, Jingya .

JOURNAL OF HIGH ENERGY PHYSICS, 2014, (01)

← 1 2 3 4 →