Axiogenesis from SU(2)R phase transition

Harigaya, Keisuke; R., Wang, Isaac

doi:10.1007/jhep10(2021)022

Cited by 22 publications

(17 citation statements)

References 64 publications

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“…• Also for Olcyr -current constraints and SM predictions for ACP and Br of B + c decays in the SM • Adding an appendix deriving the Boltzmann equations. This will be very similar to the lepton asymmetry of the D meso appendix [27] but note the dark matter treatment is di↵erent.…”

Section: Out Of Thermal Equilibriumsupporting

confidence: 54%

“…Nucleon decays are also predicted under plausible assumptions. An extra non-Abelian gauge symmetry SU (2) R can also give rise to baryon number violation [27], and this scenario predicts a new gauge boson that can be probed at the high luminosity LHC. All of these axiogenesis scenarios avoid overproduction of axion dark matter even with T EW = 130 GeV and prefer an axion decay constant f a = 10 [8][9][10][11] GeV, smaller than that of conventional predictions.…”

Section: Contributors: Raymond Co and Keisuke Harigayamentioning

confidence: 99%

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New Ideas in Baryogenesis: A Snowmass White Paper

Elor¹,

Harz²,

Ipek³

et al. 2022

Preprint

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The Standard Model of Particle Physics cannot explain the observed baryon asymmetry of the Universe. This observation is a clear sign of new physics beyond the Standard Model. There have been many recent theoretical developments to address this question. Critically, many new physics models that generate the baryon asymmetry have a wide range of repercussions for many areas of theoretical and experimental particle physics. This white paper provides an overview of such recent theoretical developments with an emphasis on experimental testability. Model Key Ingredients Observable scale Observables Axiogenesis Axion misalignment, sphalerons axion scale ~ O( 10 8-11 GeV) axion mass ~ 𝜇eV Gravitational waves WR baryogenesis axion inflation, WR interactions with the inflaton LR symmetry breaking ~ O( 10 10 GeV) Gravitational waves QCD Baryogenesis Singlet scalar coupled to the gluon field strength,

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Section: Out Of Thermal Equilibriumsupporting

confidence: 54%

Section: Contributors: Raymond Co and Keisuke Harigayamentioning

confidence: 99%

New Ideas in Baryogenesis: A Snowmass White Paper

Elor¹,

Harz²,

Ipek³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Baryon and/or lepton number violation can arise from R-parity violation [797]. An extra non-Abelian gauge symmetry SU (2) R can also give rise to baryon number violation [798]. Since these axiogenesis scenarios enhance the charge transfer rate, axion DM is viable even with the SM prediction of T EW .…”

Section: Perturbative Interaction Ratesmentioning

confidence: 99%

Early-Universe Model Building

Asadi,

Bansal,

Berlin

et al. 2022

Preprint

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“…The transfer of the Peccei-Quinn charge to the baryon asymmetry can be made more efficient if the electroweak sphalerons freeze-out at a larger temperature T ws [157][158][159][160], if the weak anomaly of U (1) PQ is larger (larger c B ) [136], in the presence of the dimension 5 Weinberg operator giving a Majorana mass to the SM neutrinos [161][162][163], or in the presence of supersymmetric R-parity violating couplings [164]. It will be interesting to study the correlation between the presence of a kinationinduced peak in SGWB from primordial origin and successful baryogenesis in the case of the QCD axion.…”

Section: More Efficient Charge Transfermentioning

confidence: 99%

Kination cosmology from scalar fields and gravitational-wave signatures

Gouttenoire¹,

Servant²,

Simakachorn³

2021

Preprint

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Kination denotes an era in the cosmological history corresponding to an equation of state ω = +1 such that the total energy density of the universe redshifts as the sixth inverse power of the scale factor. This arises if the universe is dominated by the kinetic energy of a scalar field. It has often been motivated in the literature as an era following inflation, taking place before the radiation era. In this paper, we review instead the possibility that kination is disconnected from primordial inflation and occurs much later, inside the Standard Model radiation era. We study the implications on all main sources of primordial gravitational waves. We show how this leads to very distinctive peaked spectra in the stochastic background of long-lasting cosmological sources of gravitational waves, namely the irreducible gravitational waves from inflation, and gravitational waves from cosmic strings, both local and global, with promising observational prospects. We present model-independent signatures and detectability predictions at LIGO, LISA, ET, CE, BBO, as a function of the energy scale and duration of the kination era. We then argue that such intermediate kination era is in fact symptomatic in a large class of axion models. We analyse in details the scalar field dynamics, the working conditions and constraints in the underlying models. We present the gravitational-wave predictions as a function of particle physics parameters. We derive the general relation between the gravitational-wave signal and the axion dark matter abundance as well as the baryon asymmetry. We investigate the predictions for the special case of the QCD axion. The key message is that gravitational-waves of primordial origin represent an alternative experimental probe of axion models.

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Axiogenesis from SU(2)R phase transition

Cited by 22 publications

References 64 publications

New Ideas in Baryogenesis: A Snowmass White Paper

New Ideas in Baryogenesis: A Snowmass White Paper

Early-Universe Model Building

Kination cosmology from scalar fields and gravitational-wave signatures

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