Results 11 to 20 of about 2,327 (186)

Precision photon spectra for wino annihilation [PDF]

open access: yesJournal of High Energy Physics, 2019
We provide precise predictions for the hard photon spectrum resulting from neutral SU(2) W triplet (wino) dark matter annihilation. Our calculation is performed utilizing an effective field theory expansion around the endpoint region where the photon ...
Matthew Baumgart   +8 more
doaj   +6 more sources

Zero-range effective field theory for resonant wino dark matter. Part I. Framework

open access: yesJournal of High Energy Physics, 2017
The most dramatic “Sommerfeld enhancements” of neutral-wino-pair annihilation occur when the wino mass is near a critical value where there is a zero-energy S-wave resonance at the neutral-wino-pair threshold.
Eric Braaten, Evan Johnson, Hong Zhang
doaj   +3 more sources

Sommerfeld-corrected relic abundance of wino dark matter with NLO electroweak potentials

open access: yesJournal of High Energy Physics, 2021
Extending previous work, we calculate the electroweak potentials for all co-annihilation channels of wino dark matter at the one-loop order and obtain the wino relic abundance including the Sommerfeld effect at the next-to-leading order (NLO).
Martin Beneke, Robert Szafron, Kai Urban
doaj   +2 more sources

R-parity violating decays of Wino chargino and wino neutralino LSPs and NLSPs at the LHC [PDF]

open access: yesJournal of High Energy Physics, 2019
The R-parity violating decays of both Wino chargino and Wino neutralino LSPs are analyzed within the context of the B − L MSSM “heterotic standard model”.
Sebastian Dumitru   +2 more
doaj   +3 more sources

Zero-range effective field theory for resonant wino dark matter. Part II. Coulomb resummation

open access: yesJournal of High Energy Physics, 2018
Near a critical value of the wino mass where there is a zero-energy S-wave resonance at the neutral-wino-pair threshold, low-energy winos can be described by a zero-range effective field theory (ZREFT) in which the winos interact nonperturbatively ...
Eric Braaten, Evan Johnson, Hong Zhang
doaj   +2 more sources

Smallest halos in thermal wino dark matter [PDF]

open access: yesPhysical Review D, 2019
(Mini) split supersymmetry explains the observed Higgs mass and evades stringent constraints, while keeping good features of TeV-scale supersymmetry other than the little hierarchy problem. Such scenarios naturally predict thermal wino dark matter whose mass is around $3 \, {\rm TeV}$.
Shin’ichiro Ando   +3 more
openaire   +6 more sources

Wino w wybranych epigramatach greckich [PDF]

open access: yesJęzyk. Religia. Tożsamość, 2023
Poetry and wine not only permeate throughout Greek culture but also emerge as inseparable motifs. The Dionysian gift has accompanied the creators of poetic works since as early as the 7th century BC.
Magadalena Jaworska
doaj   +2 more sources

Discovery reach for wino and higgsino dark matter with a disappearing track signature at a 100 TeV pp collider

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
Within the theory of supersymmetry, the lightest neutralino is a dark matter candidate and is often assumed to be the lightest supersymmetric particle (LSP) as well.
Masahiko Saito   +3 more
doaj   +2 more sources

Taking aim at the wino-Higgsino plane with the LHC [PDF]

open access: yesPhysical Review D
In this work we explore multiple search strategies for Higgsinos and mixed Higgsino-wino states in the minimal supersymmetric Standard Model (MSSM) and project the results onto the (μ,M2) plane. Assuming associated production of Higgsino-like pairs with a W/Z boson, we develop a search in a channel characterized by a hadronically tagged vector boson ...
Linda M. Carpenter   +3 more
openaire   +4 more sources

Closing in on the Wino LSP via trilepton searches at the LHC

open access: yesJournal of High Energy Physics, 2018
The neutralino dark matter (DM) predicted by the Minimal Supersymmetric Standard Model (MSSM) has been probed in several search modes at the Large Hadron Collider (LHC), one of the leading ones among which is the trilepton plus missing transverse ...
W. Abdallah   +3 more
doaj   +2 more sources

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