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Gauge singlet scalars as cold dark matter

WebOct 24, 2016 · D.S. Akerib et al., Results from a search for dark matter in LUX with 332 live days of exposure, [1608.07648] Preprint Google Scholar [3] J. McDonald, 1994 Gauge singlet scalars as cold dark matter, Phys. Rev. D 50 3637 [hep-ph/0702143] Crossref Preprint Google Scholar [4] WebJun 26, 2024 · John McDonald, "Gauge singlet scalars as cold dark matter," Phys. Rev. D50, 3637-3649 (1994), arXiv:hep-ph/0702143 [HEP-PH] The Minimal model of nonbaryonic dark matter: A Singlet scalar Jan 2001

A simultaneous study of dark matter and phase transition

WebSep 3, 2024 · Scenarios for multi-component scalar dark matter based on a single Z N (N ≥ 4) symmetry are simple and well-motivated. In this paper we investigate, for the first time, the phenomenology of the Z 5 model for two-component dark matter. This model, which can be seen as an extension of the well-known singlet scalar model, features two … WebFeb 4, 2024 · [22] J. McDonald, “Gauge singlet scalars as cold dark matter,” Phys. Rev. D 50 (1994) 3637–3649 , arXiv:hep-ph/0702143 . [23] C. P. Burgess, M. Pospelov, and T. ter V eldhuis, “The Minimal ... legility law firm https://amdkprestige.com

Pragmatic Approach to the Little Hierarchy Problem: The Case for Dark …

WebIn it is shown that it is possible to modify the standard theory by adding a scalar which possesses a discrete symmetry and to address the issue of the dark matter of the universe, within the frame work of singlet extended SM; the issue of dark matter has been studied in [6–13], while electroweak phase transition was studied in [14–23] and ... WebJun 16, 2024 · We revisit the two real singlet extension of the Standard Model with a \( {Z}_2\times {Z}_2^{\prime } \) symmetry. One of the singlet scalars S 2, by virtue of an unbroken \( {Z}_2^{\prime } \) symmetry, plays the role of a stable dark matter candidate. The other scalar S 1, with spontaneously broken Z 2-symmetry, mixes with the SM … WebFeb 24, 2024 · In the framework of U(1)XSSM, we study the Higgs mass and take the lightest CP-even sneutrino as a cold dark matter candidate. For the lightest CP-even sneutrino, the relic density and the cross section for dark matter scattering off nucleon are both researched. ... Gauge singlet scalars as cold dark matter, Phys. Rev. D 50 … legility relativity

Scalar neutrino dark matter in U(1)XSSM SpringerLink

Category:The B anomalies, the U1 leptoquark and dark matter SpringerLink

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Gauge singlet scalars as cold dark matter

The two-real-singlet Dark Matter model Request PDF

WebCiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): In light of recent interest in minimal extensions of the Standard Model and gauge singlet scalar cold dark matter, we provide an arXiv preprint of the paper, published as Phys.Rev. D50 (1994) 3637, which presented the first detailed analysis of gauge singlet scalar cold dark … Webgauge singlet complex scalars S i. These scalars, if stable, can in principle account for a density of CDM. Stability of the scalars can most simply be guaranteed if a continuous …

Gauge singlet scalars as cold dark matter

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WebFeb 14, 2007 · In light of recent interest in minimal extensions of the Standard Model and gauge singlet scalar cold dark matter, we provide an arXiv preprint of the paper, published as Phys.Rev. D50 (1994) 3637, which presented the first detailed analysis of gauge singlet scalar cold dark matter. WebSep 15, 1994 · Abstract. We consider a very simple extension of the standard model in which one or more gauge singlet scalars Si couples to the standard model via an …

WebJun 16, 2024 · We revisit the two real singlet extension of the Standard Model with a \( {Z}_2\times {Z}_2^{\prime } \) symmetry. One of the singlet scalars S 2, by virtue of an … WebSep 15, 1994 · Gauge singlet scalars as cold dark matter. Gauge singlet scalars as cold dark matter. Gauge singlet scalars as cold dark matter Phys Rev D Part Fields. …

WebWe consider the standard model (SM) extended by a gauge singlet fermion as cold dark matter (SFCDM) and a gauge singlet scalar (singlet Higgs) as a mediator. The parameter space of the SM is enlarged by seven new ones. We obtain the total annihilation cross section of singlet fermions to the SM particles and singlet Higgs at tree level. WebJan 11, 2024 · The present-day B -anomalies involving b → sμ+μ− or b → cτ− \overline {\nu} transitions can all be explained with the addition of a vector U1 leptoquark with a mass of {M}_ {U_1} ≳ 1. 8 TeV. In the scalar singlet dark matter model (SSDMM), the DM is a scalar S that couples to the Higgs via λhS S2 H 2. We update the fit to the data ...

WebS 0.3 2 5 h 0.7 4 5, implying that such scalars are very weakly coupled to the standard model sector. DOI: 10.1103/PhysRevLett.88.091304 PACS numbers: 95.35.+d, 12.60.Fr, …

WebMay 1, 2011 · @article{osti_21541649, title = {Two-singlet model for light cold dark matter}, author = {Abada, Abdessamad and Ghaffor, Djamal and Nasri, Salah}, … legility reviewWebWe consider a very simple extension of the standard model in which one or more gauge singlet scalars S-i couples to the standard model via an interaction of the form … legility spotlightWebJul 10, 2024 · Searches for invisible decays of the Higgs boson are presented. The data collected with the CMS detector at the LHC correspond to integrated luminosities of 5.1, 19.7, and 2.3 fb(-1) at centre-of ... leg im injection adultWebAlthough gauge singlet scalars might account for cold dark matter, and more specif-ically for SIDM, it is necessary to explain how a critical density of gauge singlet scalars with the right properties could arise. The simplest and most natural way for a particle density to arise is by thermal generation. Therefore in the following we will ... legility tnWebNov 14, 2024 · We build a model containing two scalar doublets and a scalar singlet with a specific discrete symmetry. After spontaneous symmetry breaking, the model has Standard Model-like phenomenology, as well as a hidden scalar sector which provides a viable dark matter candidate. We show that CP violation in the scalar sector occurs exclusively in … leg in anatomical termsWebMar 17, 1994 · We consider the possibility of using a gauge singlet scalar as the source of the additional CP violation needed to allow the observed baryon (B) ... In this case the … leg in a sentence mathWebSearch results for citedby:recid:1607216. Number of results: 440 ≪ < page 18 of 18 > ≫. Brief list Raw JSON leg im injection site