Abstract
We study the cosmological evolution of asymmetries in the two-Higgs doublet extension of the Standard Model, prior to the electroweak phase transition. If Higgs flavour-exchanging interactions are sufficiently slow, then a relative asymmetry among the Higgs doublets corresponds to an effectively conserved quantum number. Since the magnitude of the Higgs couplings depends on the choice of basis in the Higgs doublet space, we attempt to formulate basis-independent out-of-equilibrium conditions. We show that an initial asymmetry between the Higgs scalars, which could be generated by CP violation in the Higgs sector, will be transformed into a baryon asymmetry by the sphalerons, without the need of B − L violation. This novel mechanism of baryogenesis through (split) Higgsogenesis is exemplified with simple scenarios based on the out-of-equilibrium decay of heavy singlet scalar fields into the Higgs doublets.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
CMS collaboration, Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC, Phys. Lett. B 716 (2012) 30 [arXiv:1207.7235] [INSPIRE].
ATLAS collaboration, Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC, Phys. Lett. B 716 (2012) 1 [arXiv:1207.7214] [INSPIRE].
A. Sakharov, Violation of CP invariance, c asymmetry and baryon asymmetry of the universe, Pisma Zh. Eksp. Teor. Fiz. 5 (1967) 32 [JETP Lett. 5 (1967) 24] [Sov. Phys. Usp. 34 (1991) 392] [Usp. Fiz. Nauk 161 (1991) 61] [INSPIRE].
E.W. Kolb and S. Wolfram, Baryon number generation in the early universe, Nucl. Phys. B 172 (1980) 224 [Erratum ibid. B 195 (1982) 542] [INSPIRE].
A. Dolgov, Non-GUT baryogenesis, Phys. Rept. 222 (1992) 309 [INSPIRE].
For recent reviews see e.g. S. Davidson, E. Nardi and Y. Nir, Leptogenesis, Phys. Rept. 466 (2008) 105 [arXiv:0802.2962] [INSPIRE].
G. Branco, R.G. Felipe and F. Joaquim, Leptonic CP-violation, Rev. Mod. Phys. 84 (2012) 515 [arXiv:1111.5332] [INSPIRE].
V. Rubakov and M. Shaposhnikov, Electroweak baryon number nonconservation in the early universe and in high-energy collisions, Usp. Fiz. Nauk 166 (1996) 493 [Phys. Usp. 39 (1996) 461] [hep-ph/9603208] [INSPIRE].
M. Quirós, Electroweak baryogenesis, J. Phys. A 40 (2007) 6573 [INSPIRE].
J.M. Cline, Baryogenesis, hep-ph/0609145 [INSPIRE].
J.F. Gunion, H.E. Haber, G. Kane and S. Dawson, The Higgs hunter’s guide, Perseus Publishing, Cambridge MA U.S.A. (1990).
For a recent review on 2HDM see for example G. Branco et al., Theory and phenomenology of two-Higgs-doublet models, Phys. Rept. 516 (2012) 1 [arXiv:1106.0034] [INSPIRE].
P.B. Arnold and L.D. McLerran, Sphalerons, small fluctuations and baryon number violation in electroweak theory, Phys. Rev. D 36 (1987) 581 [INSPIRE].
F.R. Klinkhamer and N. Manton, A saddle point solution in the Weinberg-Salam theory, Phys. Rev. D 30 (1984) 2212 [INSPIRE].
L. Lavoura and J.P. Silva, Fundamental CP-violating quantities in a SU(2) × U(1) model with many Higgs doublets, Phys. Rev. D 50 (1994) 4619 [hep-ph/9404276] [INSPIRE].
F. Botella and J.P. Silva, Jarlskog-like invariants for theories with scalars and fermions, Phys. Rev. D 51 (1995) 3870 [hep-ph/9411288] [INSPIRE].
S. Davidson and H.E. Haber, Basis-independent methods for the two-Higgs-doublet model, Phys. Rev. D 72 (2005) 035004 [Erratum ibid. D 72 (2005) 099902] [hep-ph/0504050] [INSPIRE].
S.Y. Khlebnikov and M. Shaposhnikov, The statistical theory of anomalous Fermion number nonconservation, Nucl. Phys. B 308 (1988) 885 [INSPIRE].
S.Y. Khlebnikov and M. Shaposhnikov, Melting of the Higgs vacuum: conserved numbers at high temperature, Phys. Lett. B 387 (1996) 817 [hep-ph/9607386] [INSPIRE].
J.A. Harvey and M.S. Turner, Cosmological baryon and lepton number in the presence of electroweak fermion number violation, Phys. Rev. D 42 (1990) 3344 [INSPIRE].
For recent reviews see for example B. Grinstein and P. Uttayarat, Carving out parameter space in type-II two Higgs doublets model, JHEP 06 (2013) 094 [Erratum ibid. 09 (2013) 110] [arXiv:1304.0028] [INSPIRE].
A. Barroso, P. Ferreira, R. Santos, M. Sher and J.P. Silva, 2HDM at the LHC — the story so far, arXiv:1304.5225 [INSPIRE].
C.-Y. Chen, S. Dawson and M. Sher, Heavy Higgs searches and constraints on two Higgs doublet models, Phys. Rev. D 88 (2013) 015018 [arXiv:1305.1624] [INSPIRE].
O. Eberhardt, U. Nierste and M. Wiebusch, Status of the two-Higgs-doublet model of type-II, arXiv:1305.1649 [INSPIRE].
N. Craig, J. Galloway and S. Thomas, Searching for signs of the second Higgs doublet, arXiv:1305.2424 [INSPIRE].
P. Ferreira, R. Santos, M. Sher and J.P. Silva, 2HDM confronting LHC data, arXiv:1305.4587 [INSPIRE].
N.G. Deshpande and E. Ma, Pattern of symmetry breaking with two Higgs doublets, Phys. Rev. D 18 (1978) 2574 [INSPIRE].
R. Barbieri, L.J. Hall and V.S. Rychkov, Improved naturalness with a heavy Higgs: an alternative road to LHC physics, Phys. Rev. D 74 (2006) 015007 [hep-ph/0603188] [INSPIRE].
Q.-H. Cao, E. Ma and G. Rajasekaran, Observing the dark scalar doublet and its impact on the Standard Model Higgs boson at colliders, Phys. Rev. D 76 (2007) 095011 [arXiv:0708.2939] [INSPIRE].
M. Krawczyk, D. Sokolowska and B. Swiezewska, Inert doublet model with a 125 GeV Higgs, arXiv:1304.7757 [INSPIRE].
M. Krawczyk, D. Sokolowska, P. Swaczyna and B. Swiezewska, Constraining inert dark matter by R γγ and WMAP data, JHEP 09 (2013) 055 [arXiv:1305.6266] [INSPIRE].
B. Swiezewska and M. Krawczyk, 2-photon decay rate of the scalar boson in the inert doublet model, arXiv:1305.7356 [INSPIRE].
B. Swiezewska, Yukawa independent constraints for 2HDMs with a 125 GeV Higgs boson, Phys. Rev. D 88 (2013) 055027 [arXiv:1209.5725] [INSPIRE].
ATLAS collaboration, Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC, Phys. Lett. B 726 (2013) 88 [arXiv:1307.1427] [INSPIRE].
CMS collaboration, Updated measurements of the Higgs boson at 125 GeV in the two photon decay channel, CMS-PAS-HIG-13-001, CERN, Geneva Switzerland (2013).
D. Comelli and J. Espinosa, Bosonic thermal masses in supersymmetry, Phys. Rev. D 55 (1997) 6253 [hep-ph/9606438] [INSPIRE].
I. Ivanov, Thermal evolution of the ground state of the most general 2HDM, Acta Phys. Polon. B 40 (2009) 2789 [arXiv:0812.4984] [INSPIRE].
I. Ginzburg, I. Ivanov and K. Kanishev, The evolution of vacuum states and phase transitions in 2HDM during cooling of universe, Phys. Rev. D 81 (2010) 085031 [arXiv:0911.2383] [INSPIRE].
R.N. Mohapatra and X.-M. Zhang, QCD sphalerons at high temperature and baryogenesis at electroweak scale, Phys. Rev. D 45 (1992) 2699 [INSPIRE].
H. Davoudiasl and R.N. Mohapatra, On relating the genesis of cosmic baryons and dark matter, New J. Phys. 14 (2012) 095011 [arXiv:1203.1247] [INSPIRE].
K. Petraki and R.R. Volkas, Review of asymmetric dark matter, Int. J. Mod. Phys. A 28 (2013) 1330028 [arXiv:1305.4939] [INSPIRE].
G. Servant and S. Tulin, Higgsogenesis, Phys. Rev. Lett. 111 (2013) 151601 [arXiv:1304.3464] [INSPIRE].
D. Borah and J.M. Cline, Inert doublet dark matter with strong electroweak phase transition, Phys. Rev. D 86 (2012) 055001 [arXiv:1204.4722] [INSPIRE].
G. Gil, P. Chankowski and M. Krawczyk, Inert dark matter and strong electroweak phase transition, Phys. Lett. B 717 (2012) 396 [arXiv:1207.0084] [INSPIRE].
M. Laine, G. Nardini and K. Rummukainen, Lattice study of an electroweak phase transition at m h ~126 GeV, JCAP 01 (2013) 011 [arXiv:1211.7344] [INSPIRE].
WMAP collaboration, E. Komatsu et al., Seven-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: cosmological interpretation, Astrophys. J. Suppl. 192 (2011) 18 [arXiv:1001.4538] [INSPIRE].
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1307.6218
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
About this article
Cite this article
Davidson, S., Felipe, R.G., Serôdio, H. et al. Baryogenesis through split Higgsogenesis. J. High Energ. Phys. 2013, 100 (2013). https://doi.org/10.1007/JHEP11(2013)100
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP11(2013)100