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Related papers: Precision Photon Spectra for Wino Annihilation

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Direct searches for WIMPs are sensitive to physics well below the weak scale. In the absence of light mediators, it is fruitful to apply an Effective Field Theory (EFT) approach accounting only for dark matter (DM) interactions with…

High Energy Physics - Phenomenology · Physics 2015-04-21 Francesco D'Eramo , Massimiliano Procura

Using simple physical reasoning we have estimated the wavelengths and line-widths of spectral lines arising from the decays of massive neutrinos. We have, also, to some extent, discussed the possible consequences of these decays in…

Astrophysics · Physics 2007-05-23 Srdjan Samurovic , Vladan Celebonovic

In this paper we study sneutrino dark matter in a recently proposed supersymmetric electroweak-scale inverse seesaw model, in which the majority of the sneutrino dark matter particle is a mixture of the right-handed sneutrino $\tilde{N}^c$…

High Energy Physics - Phenomenology · Physics 2018-09-18 Jung Chang , Kingman Cheung , Hiroyuki Ishida , Chih-Ting Lu , Martin Spinrath , Yue-Lin Sming Tsai

We develop the quantum theory of the spin light of neutrino ($SL\nu$) exactly accounting for the effect of background matter. Contrary to the already performed studies of the $SL\nu$, in this paper we derive explicit and closed expressions…

High Energy Physics - Phenomenology · Physics 2009-11-11 Alexander Grigoriev , Alexander Studenikin , Alexei Ternov

A general relationship is formulated between the contributions of `Weak Annihilation' (WA) to inclusive semileptonic decays of heavy flavour hadrons and the matrix elements of four fermion operators. We argue that nonperturbative…

High Energy Physics - Phenomenology · Physics 2009-10-22 I. I. Bigi , N. G. Uraltsev

We model and constrain the unique indirect detection signature produced by dark matter particles that annihilate through a $U(1)$ gauge symmetry into dark photons that subsequently decay into three-photon final states. We focus on scenarios…

High Energy Physics - Phenomenology · Physics 2024-02-06 Tim Linden , Thong T. Q. Nguyen , Tim M. P. Tait

We study the prospects of detecting muon events at the upcoming Iron CALorimeter (ICAL) detector to be built at the proposed India-based Neutrino Observatory (INO) facility due to neutrinos arising out of annihilation of Weakly Interactive…

High Energy Physics - Phenomenology · Physics 2019-05-22 Deepak Tiwari , Sandhya Choubey , Anushree Ghosh

We show that simultaneously explaining dark matter and the observed value of the muon's magnetic dipole moment may lead to yet unexplored photon signals at the LHC. We consider the Minimal Supersymmetric Standard Model with electroweakino…

High Energy Physics - Phenomenology · Physics 2023-10-24 Sebastian Baum , Marcela Carena , Tong Ou , Duncan Rocha , Nausheen R. Shah , Carlos E. M. Wagner

We study the neutralino dark matter phenomenology in the context of effective field theories derived from the weakly--coupled heterotic string. We consider in particular direct detection and indirect detection with neutrino telescopes…

High Energy Physics - Phenomenology · Physics 2011-05-23 Pierre Binetruy , Yann Mambrini , Emmanuel Nezri

The WIMP proposed here yields the observed abundance of dark matter, and is consistent with the current limits from direct detection, indirect detection, and collider experiments, if its mass is $\sim 72$ GeV/$c^2$. It is also consistent…

High Energy Physics - Phenomenology · Physics 2021-08-02 Reagan Thornberry , Maxwell Throm , Gabriel Frohaug , John Killough , Dylan Blend , Michael Erickson , Brian Sun , Brett Bays , Roland E. Allen

We study the spectra of gamma ray signals that arise from dark matter annihilation in the universe. We focus on the large class of theories where the photon spectrum includes both continuum spectrum of gamma rays that arise from…

High Energy Physics - Phenomenology · Physics 2015-03-19 Kevork N. Abazajian , Prateek Agrawal , Zackaria Chacko , Can Kilic

We present the results from combining machine learning with the profile likelihood fit procedure, using data from the Large Underground Xenon (LUX) dark matter experiment. This approach demonstrates reduction in computation time by a factor…

Heavy sterile neutrinos are typically invoked to accommodate the observed neutrino masses, by positing a new Yukawa term connecting these new states to the neutrinos in the electroweak doublet. However, given our ignorance of the neutrino…

High Energy Physics - Phenomenology · Physics 2019-04-17 Ian M. Shoemaker , Jason Wyenberg

We perform an extensive suite of N-body simulations of the matter power spectrum, incorporating massive neutrinos in the range M = 0.15-0.6 eV, probing the non-linear regime at scales k < 10 hMpc-1 at z < 3. We extend the widely used…

Cosmology and Nongalactic Astrophysics · Physics 2014-04-29 Simeon Bird , Matteo Viel , Martin G. Haehnelt

Weakly Interacting Massive Particles (WIMPs) are one of the main candidates for the dark matter in the Universe. If these particles make up the dark matter, then they can be captured by the Sun or the Earth, sink to the respective cores,…

High Energy Physics - Phenomenology · Physics 2009-01-06 Mattias Blennow , Joakim Edsjo , Tommy Ohlsson

Experiments that use liquid noble gasses as target materials, such as argon and xenon, play a significant role in direct detection searches for WIMP(-like) dark matter. As these experiments grow in size, they will soon encounter a new…

High Energy Physics - Phenomenology · Physics 2023-05-05 Andrea Gaspert , Pietro Giampa , David E. Morrissey

If dark matter is a new species of particle produced in the early universe as a cold thermal relic (a weakly-interacting massive particle-WIMP), its present abundance, its scattering with matter in direct-detection experiments, its…

High Energy Physics - Phenomenology · Physics 2013-05-02 Jing-Yuan Chen , Edward W. Kolb , Lian-Tao Wang

We review the prospects for discovering supersymmetric dark matter in a recently proposed set of post-LEP supersymmetric benchmark scenarios. We consider direct detection through spin-independent nuclear scattering, as well as indirect…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis , Jonathan L. Feng , Andrew Ferstl , Konstantin T. Matchev , Keith A. Olive

Observational limits on the high-energy neutrino background have been used to place general constraints on dark matter that annihilates only into standard model particles. Dark matter particles that annihilate into neutrinos will also…

High Energy Physics - Phenomenology · Physics 2009-02-20 James B. Dent , Robert J. Scherrer , Thomas J. Weiler

We compute the present-day Wino dark matter annihilation cross-section including the one-loop radiative corrections together with the fully treated electroweak Sommerfeld effect. We discuss what is the consistent way of incorporating these…

High Energy Physics - Phenomenology · Physics 2013-06-18 Andrzej Hryczuk , Roberto Iengo