skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Baryogenesis via elementary Goldstone Higgs relaxation

; ; ;
Publication Date:
Sponsoring Org.:
OSTI Identifier:
Grant/Contract Number:
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 93; Journal Issue: 11; Related Information: CHORUS Timestamp: 2016-07-01 01:22:34; Journal ID: ISSN 2470-0010
American Physical Society
Country of Publication:
United States

Citation Formats

Gertov, Helene, Pearce, Lauren, Sannino, Francesco, and Yang, Louis. Baryogenesis via elementary Goldstone Higgs relaxation. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.93.115042.
Gertov, Helene, Pearce, Lauren, Sannino, Francesco, & Yang, Louis. Baryogenesis via elementary Goldstone Higgs relaxation. United States. doi:10.1103/PhysRevD.93.115042.
Gertov, Helene, Pearce, Lauren, Sannino, Francesco, and Yang, Louis. 2016. "Baryogenesis via elementary Goldstone Higgs relaxation". United States. doi:10.1103/PhysRevD.93.115042.
title = {Baryogenesis via elementary Goldstone Higgs relaxation},
author = {Gertov, Helene and Pearce, Lauren and Sannino, Francesco and Yang, Louis},
abstractNote = {},
doi = {10.1103/PhysRevD.93.115042},
journal = {Physical Review D},
number = 11,
volume = 93,
place = {United States},
year = 2016,
month = 6

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.93.115042

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

Save / Share:
  • We examine the nature of electroweak Baryogenesis when the Higgs boson's properties are modified by the effects of new physics. We utilize the effective potential to one loop (ring improving the finite temperature perturbative expansion), while retaining parametrically enhanced dimension six operators of O(v{sup 2}/f{sup 2}) in the Higgs sector. These parametrically enhanced operators would be present if the Higgs is a pseudo-Goldstone boson of a new physics sector with a characteristic mass scale {lambda}{approx}TeV, a coupling constant 4{pi}{>=}g{>=}1, and a strong decay constant scale f={lambda}/g. We find that generically the effect of new physics of this form allows amore » sufficiently first order electroweak phase transition so that the produced Baryon number can avoid washing out, and has enhanced effects due to new sources of CP violation. We also improve the description of the electroweak phase transition in perturbation theory by determining the thermal mass eigenstate basis of the standard model gauge boson fields. This improves the calculation of the finite temperature effects through incorporating mixing in the determination of the vector boson thermal masses of the standard model. These effects are essential to determining the nature of the phase transition in the standard model and are of interest in our pseudo-Goldstone Baryogenesis scenario.« less
  • A semiclassical calculation of particle production by a scalar field in a potential is performed. We focus on the particular case of production of fermions by a Nambu-Goldstone boson [theta]. We have derived a (non)local equation of motion for the [theta] field with the back reaction of the produced particles taken into account. The equation is solved in some special cases, namely, for purely Nambu-Goldstone bosons and for the tilted potential U([theta])[proportional to][ital m][sup 2][theta][sup 2]. Enhanced production of bosons due to parametric resonance is investigated; we argue that the resonance probably disappears when the expansion of the Universe ismore » included. Application of our work on particle production to reheating and an idea for baryogenesis in inflation are mentioned.« less
  • We exhibit a model in which a single pseudo-Nambu-Goldstone boson explains dark energy, inflation and baryogenesis. The model predicts correlated signals in future collider experiments, WIMP searches, proton decay experiments, dark energy probes, and the PLANCK satellite CMB measurements.
  • We quantitatively study the charge transport mechanism of electroweak baryogenesis in a realistic two-Higgs-doublet model, comparing the contributions from quarks and leptons reflecting from electroweak domain walls, and comparing the exact profile of the {ital CP}-violating phase with a commonly used ansatz. We note that the phenomenon of spontaneous {ital CP} violation at high temperature can occur in this model, even when there is no {ital CP} violation at zero temperature. We include all known effects which are likely to influence the baryon production rate, including strong sphalerons, the nontrivial dispersion relations of the quasiparticles in the plasma, and Debyemore » screening of gauged charges. We confirm the claim of Joyce, Prokopec, and Turok that the reflection of {tau} leptons from the wall gives the dominant effect. We conclude that this mechanism is at best marginally capable of producing the observed baryon asymmetry of the universe, and we discuss some ways in which it might be enhanced. {copyright} {ital 1996 The American Physical Society.}« less