Cosmic signals from the hidden sector

Mardon, Jeremy; Nomura, Yasunori; Thaler, Jesse

doi:10.1103/physrevd.80.035013

Cited by 71 publications

(61 citation statements)

References 109 publications

(160 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although solutions to this problem involving supersymmetry exist (for example, see ref. [17][18][19]), a simple, natural solution would be to assume that the φ particle is a pseudo-Goldstone boson. The small mass of φ would be, in this case, "technically natural" in the sense that radiative corrections would be zero in the m φ = 0 limit.…”

Section: Jhep11(2009)046mentioning

confidence: 99%

Sommerfeld enhancement from Goldstone pseudo-scalar exchange

Bedaque¹,

Buchoff²,

Mishra³

2009

J. High Energy Phys.

View full text Add to dashboard Cite

We point out that the exchange of a Goldstone pseudo-scalar can provide an enhancement in the dark matter annihilation rate capable of explaining the excess flux seen in high energy cosmic ray data. The mechanism of enhancement involves the coupling of s and d waves through the tensor force that is very strong and, in fact, singular at short distances. The results indicate that large enhancements require some amount of fine tuning. We also discuss the enhancement due to other singular attractive potentials, such as WIMP models with a permanent electric dipole.

show abstract

Section: Jhep11(2009)046mentioning

confidence: 99%

Sommerfeld enhancement from Goldstone pseudo-scalar exchange

Bedaque¹,

Buchoff²,

Mishra³

2009

J. High Energy Phys.

View full text Add to dashboard Cite

show abstract

“…[299] proposes an axion with 360-800 MeV and an energy scale, f , at which the symmetry is broken in the range 1-3 TeV. A broader range of mass and energy scale values is allowed in other dark matter scenarios involving axions or axion-like states [300,301]. In both cases the hidden particle can be long-lived, hence showing a detached vertex with respect to the production point.…”

Section: Search For Light Particles Decaying Into Visible Final Statesmentioning

confidence: 99%

Rare B decays as tests of the Standard Model

Blake

Lanfranchi

Straub

2017

Progress in Particle and Nuclear Physics

126

View full text Add to dashboard Cite

One of the most interesting puzzles in particle physics today is that new physics is expected at the TeV energy scale to solve the hierarchy problem, and stabilise the Higgs mass, but so far no unambiguous signal of new physics has been found. Strong constraints on the energy scale of new physics can be derived from precision tests of the electroweak theory and from flavour-changing or CP -violating processes in strange, charm and beauty hadron decays. Decays that proceed via flavour-changing-neutral-current processes are forbidden at the lowest perturbative order in the Standard Model and are, therefore, rare. Rare b hadron decays are playing a central role in the understanding of the underlying patterns of Standard Model physics and in setting up new directions in model building for new physics contributions. In this article the status and prospects of this field are reviewed.

show abstract

“…We should note, here, that there is an excellent possibility on the DM candidate in strongly coupled low scale gauge mediation models [61,62,63,64,47]. In fact, some …”

Section: Messenger Contribution To the Higgs Boson Massmentioning

confidence: 99%

Higgs boson mass in low scale gauge mediation models

Yanagida

Yokozaki

Yonekura

2012

J. High Energ. Phys.

View full text Add to dashboard Cite

We consider low scale gauge mediation models with a very light gravitino m 3/2 16 eV, in the light of recent experimental hints on the Higgs boson mass. The light gravitino is very interesting since there is no gravitino over-production problem, but it seems difficult to explain the Higgs boson mass of ∼ 125 GeV. This is because of the conflict between the light gravitino mass and heavy SUSY particle masses needed for producing the relatively heavy Higgs boson mass. We consider two possible extensions in this paper: a singlet extension of the Higgs sector, and strongly coupled gauge mediation. We show that there is a large parameter space, in both scenarios, where the Higgs boson mass of ∼125 GeV is explained without any conflict with such a very light gravitino.

show abstract

Cosmic signals from the hidden sector

Cited by 71 publications

References 109 publications

Sommerfeld enhancement from Goldstone pseudo-scalar exchange

Sommerfeld enhancement from Goldstone pseudo-scalar exchange

Rare B decays as tests of the Standard Model

Higgs boson mass in low scale gauge mediation models

Contact Info

Product

Resources

About