Studies of a thermally averaged p-wave Sommerfeld factor [PDF]
Physics Letters B, 2019 Thermal pair annihilation of heavy particles, such as dark matter or its co-annihilation partners, can be strongly influenced by attractive interactions.
Seyong Kim, M. Laine
doaj +4 more sources
Indirect Dark Matter Signatures in the Cosmic Dark Ages I. Generalizing the Bound on s-wave Dark Matter Annihilation from Planck [PDF]
, 2015 Recent measurements of the cosmic microwave background (CMB) anisotropies by Planck provide a sensitive probe of dark matter annihilation during the cosmic dark ages, and specifically constrain the annihilation parameter $f_\mathrm{eff} \langle \sigma v \
Slatyer, Tracy R.
core +4 more sources
Asymmetric thermal-relic dark matter: Sommerfeld-enhanced freeze-out, annihilation signals and unitarity bounds [PDF]
, 2017 Dark matter that possesses a particle-antiparticle asymmetry and has thermalised in the early universe, requires a larger annihilation cross-section compared to symmetric dark matter, in order to deplete the dark antiparticles and account for the ...
Baldes, Iason, Petraki, Kalliopi
core +5 more sources
Can God Destroy the World? St. Thomas Aquinas’ view in Disputed Questions on the Power of God [PDF]
Studia Gilsoniana, 2023 In the article, the author undertakes the problem of whether the world, which in the light of the philosophical theory of creation ex nihilo was introduced into being as indestructible in some of its elements, can be annihilated by God and turned into ...
Paulina Sulenta
doaj +1 more source
Search for Dark Matter Annihilation Signals in the H.E.S.S. Inner Galaxy Survey. [PDF]
Physical Review Letters, 2022 The central region of the Milky Way is one of the foremost locations to look for dark matter (DM) signatures. We report the first results on a search for DM particle annihilation signals using new observations from an unprecedented γ-ray survey of the ...
H. Collaboration +139 more
semanticscholar +1 more source
A Comparative Study of Annihilation from the Perspective of Ibn Sina, Suhrawardī and Mullā Ṣadrā [PDF]
آموزههای فلسفه اسلامي, 2021 One of the most important and fundamental issues in the field of ascending act of creation (arc of ascent) is the issues related to the end of the ascension arc and the issue of annihilation in God.
Amin Dehghani +2 more
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Imam Khomeini and Trio Approaches to Issues Surrounding Death [PDF]
پژوهشنامه متین, 2023 Death anxiety has been one of the most important concerns of human being since recorded history. This is a significant issue since the majority of thinkers have talked or written about it anytime anywhere.
Maedeh Sadaat Hosseinizadeh +1 more
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Celestial-body focused dark matter annihilation throughout the Galaxy [PDF]
Physical Review D, 2021 Indirect detection experiments typically measure the flux of annihilating dark matter (DM) particles propagating freely through galactic halos. We consider a new scenario where celestial bodies “focus” DM annihilation events, increasing the efficiency of
R. K. Leane +3 more
semanticscholar +1 more source
Testing CPT symmetry in ortho-positronium decays with positronium annihilation tomography [PDF]
Nature Communications, 2021 Charged lepton system symmetry under combined charge, parity, and time-reversal transformation (CPT) remains scarcely tested. Despite stringent quantum-electrodynamic limits, discrepancies in predictions for the electron–positron bound state (positronium
P. Moskal +37 more
semanticscholar +1 more source
Revisiting CMB constraints on dark matter annihilation [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 The precision measurements of the cosmic microwave background power spectrum put a strong constraint on the dark matter annihilation cross section since the electromagnetic energy injection by the dark matter annihilation affects the ionization history ...
M. Kawasaki +3 more
semanticscholar +1 more source