14 citations · 15 across the 9 of their papers we have counts for
11 papers · 1 filter
Constraints on Complex Electroweak WIMPs from Solar Capture
Juan P. Luengas, Maxim Pospelov, Harikrishnan Ramani
One of the most convincing realizations of particle dark matter is provided by models based on electroweak multiplets. The lightest neutral state of such a multiplet can be a stabl…
Strong Constraints on Higgsino Dark Matter from Solar Capture
Maxim Pospelov, Harikrishnan Ramani
Higgsino dark matter remains one of the most convincing dark matter candidates. It can exist in a ``quasi-Dirac" regime, when the splitting between two Majorana components is on th…
Signatures of gravity-mediated dark matter interaction in theories with large extra dimensions
A. Clarke, V. V. Flambaum, M. Pospelov +1
Dark matter particles that couple to the Standard Model only through gravity are usually regarded as inaccessible to laboratory detection. This expectation can change in theories w…
New physics in multi-lepton tau decays
Yohei Ema, Patrick J. Fox, Matheus Hostert +4
Dark particles with lepton-flavor-violating couplings to the tau lepton can induce rare neutrinoless decays with large final state multiplicities. We study models where transit…
Freeze-in dark matter in neutron stars
Maxim Pospelov, Samya Roychowdhury
Every neutron star is born in the process of core-collapse supernova explosion that, for a brief moment, reproduces conditions of the early Universe with temperatures $T\sim O(30\r…
Novel Constraints on Spin-Dependent Light Dark Matter Scattering
Alexander Clarke, Maxim Pospelov
We explore the sensitivity of the SNO experiment to light dark matter particles with spin-dependent interactions with nucleons. We show that the pair-production of MeV scale da…
Long-lived Axion-Like Particles from Tau Decays
Yohei Ema, Patrick J. Fox, Matheus Hostert +4
Axion-like particles (ALPs) are well-motivated examples of light, weakly coupled particles in theories beyond the Standard Model. In this work, we study long-lived ALPs coupled exc…
Constraints on millicharged particles from nuclear gamma-decays
Ting Gao, Maxim Pospelov
We consider nuclear gamma decays and -emitting reactions that can be an efficient source of hypothetical millicharged particles (). In particular, we revisit the production o…
Chiral properties of the nucleon interpolating current and -dependent observables
Yohei Ema, Ting Gao, Maxim Pospelov +1
We revisit the chiral properties of nucleon interpolating currents, and show that of the two leading order currents and , only two linear combinations trans…
Dark Matter Catalyzed Baryon Destruction
Yohei Ema, Robert McGehee, Maxim Pospelov +1
WIMP-type dark matter may have additional interactions that break baryon number, leading to induced nucleon decays which are subject to direct experimental constraints from proton…
Probing Earth-Bound Dark Matter with Nuclear Reactors
Yohei Ema, Maxim Pospelov, Anupam Ray
Strongly-interacting dark matter can be accumulated in large quantities inside the Earth, and for dark matter particles in a few GeV mass range, it can exist in large quantities ne…