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Higgs relaxation after inflation

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0 Published in 2018 at "Journal of High Energy Physics"

DOI: 10.1007/jhep10(2018)020

Abstract: A bstractWe show that the mechanism of cosmological relaxation of the electroweak scale can take place independently of the inflation mechanism, thus relieving burdens from the original relaxion proposal. What eventually stops the (fast-rolling) relaxion… read more here.

Keywords: relaxation inflation; mechanism; relaxion; inflation ... See more keywords

Out-of-the-box baryogenesis during relaxation

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0 Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.100.015034

Abstract: We show that spontaneous baryogenesis occurs automatically in relaxion models if the reheating temperature is larger than the weak scale, provided the Standard Model fields are charged under the U(1) of which the relaxion is… read more here.

Keywords: baryogenesis relaxation; relaxion; box baryogenesis; baryogenesis ... See more keywords

Cosmological relaxation and high scale inflation

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0 Published in 2017 at "Physical Review D"

DOI: 10.1103/physrevd.95.015009

Abstract: The relaxion mechanism elegantly solves the Higgs hierarchy problem, but it requires that the early Universe experiences a long inflation phase with a small energy scale since the settle down of the relaxion needs to… read more here.

Keywords: high scale; relaxion; cosmological relaxation; inflation ... See more keywords

Relaxion: A Landscape Without Anthropics

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1 Published in 2017 at "Physical Review D"

DOI: 10.1103/physrevd.96.113007

Abstract: The relaxion mechanism provides a potentially elegant solution to the hierarchy problem without resorting to anthropic or other fine-tuning arguments. This mechanism introduces an axion-like field, dubbed the relaxion, whose expectation value determines the electroweak… read more here.

Keywords: without anthropics; relaxion; relaxion landscape; landscape without ... See more keywords

Nelson-Barr relaxion

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0 Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.99.035014

Abstract: Cosmological relaxation models in which the relaxion is identified with the QCD axion, generically fail to account for the smallness of the strong C P phase. We present a simple alternative solution to this “relaxion… read more here.

Keywords: barr relaxion; nelson barr; relaxion;