Vacuum stability, perturbativity, and scalar singlet dark matter

By M. Gonderinger, Yingchuan Li, Hiren H. Patel, M. Ramsey-Musolf. 2009

209 citations recorded by the source corpus.

We analyze the one-loop vacuum stability and perturbativity bounds on a singlet extension of the Standard Model (SM) scalar sector containing a scalar dark matter candidate. We show that the presence of the singlet-doublet quartic interaction relaxes the vacuum stability lower bound on the SM Higgs mass as a function of the cutoff and lowers the corresponding upper bound based on perturbativity considerations. We also find that vacuum stability requirements may place a lower bound on the singlet dark matter mass for given singlet quartic self coupling, leading to restrictions on the parameter space consistent with the observed relic density. We argue that discovery of a light singlet scalar dark matter particle could provide indirect information on the singlet quartic self-coupling.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/36eea198330f1a09c90ed6bd3db363cf3abd9118

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In Nuclear and High Energy Physics

Citations in the corpus

Complex scalar singlet dark matter: Vacuum stability and phenomenology (2012, methodology): “As was shown in [29], the contribution of δ2 to the running of λ decreases the theoretical lower bounds on the Higgs mass from vacuum stability.”
Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke (2016, background): “[20] for a discussion of this effect in the context of scalar singlet dark matter.”