Probable evidence for a transient mega-electron volt emission line in the GRB 221023A
Detection of spectral line in gamma-ray bursts (GRBs) is importance for studying GRB physics, as it provides insights into the composition and physical conditions of the GRB environment.
Lu-Yao Jiang+8 more
doaj +1 more source
Strong first order electroweak phase transition in 2HDM confronting future Z & Higgs factories
The electroweak phase transition can be made first order by extending the Standard Model (SM) Higgs sector with extra scalars. The same new physics can explain the matter-antimatter asymmetry of the universe by supplying an extra source of CP violation ...
Wei Su+2 more
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Muonphilic dark matter explanation of gamma-ray galactic center excess: a comprehensive analysis
The Galactic center gamma-ray excess (GCE) is a long-standing unsolved problem. One of candidate solutions, the dark matter (DM) annihilation, has been recently tested with other astrophysical observations, such as AMS-02 electron-positron spectra, Fermi
Murat Abdughani+4 more
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Constraining primordial black holes as dark matter using AMS-02 data
Primordial black holes (PBHs) are the plausible candidates for the cosmological dark matter. Theoretically, PBHs with masses $$M_{\textrm{PBH}}$$ M PBH in the range of $$4\times 10^{14}\sim 10^{17}\,\textrm{g}$$ 4 × 10 14 ∼ 10 17 g can emit sub-GeV ...
Bing-Yu Su+5 more
doaj +1 more source
A delayed 400 GeV photon from GRB 221009A and implication on the intergalactic magnetic field
Large High Altitude Air Shower Observatory has detected 0.2 − 13 TeV emission of GRB 221009A within 2000 s since the trigger. Here we report the detection of a 400 GeV photon, without accompanying prominent low-energy emission, by Fermi Large Area ...
Zi-Qing Xia+3 more
doaj +1 more source
The multi-mode acoustic gravitational wave experiment: MAGE
The Multi-mode Acoustic Gravitational wave Experiment (MAGE) is a high frequency gravitational wave detection experiment. In its first stage, the experiment features two near-identical quartz bulk acoustic wave resonators that act as strain antennas with
William M. Campbell+2 more
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Unexpected major geomagnetic storm caused by faint eruption of a solar trans-equatorial flux rope
Some geomagnetic storms’ solar origins are ambiguous, making them hard to predict. On March 23, 2023, a severe geomagnetic storm occurred, however, forecasts based on remote-sensing observations failed to predict it.
Weilin Teng+3 more
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Classification of three-family flavoured DFSZ axion models that have no domain wall problem
We provide an exhaustive classification of three-family DFSZ axion models that have no cosmological domain wall problem. This result is obtained by making the Peccei-Quinn symmetry flavour dependent in certain specific ways, thus reinforcing a possible ...
Peter Cox+4 more
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The ScotoSinglet Model: a scalar singlet extension of the Scotogenic Model
The Scotogenic Model is one of the most minimal models to account for both neutrino masses and dark matter (DM). In this model, neutrino masses are generated at the one-loop level, and in principle, both the lightest fermion singlet and the lightest ...
Ankit Beniwal+4 more
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CYG $$\nu $$ ν S: detecting solar neutrinos with directional gas time projection chambers
Cygnus is a proposed global network of large-scale gas time projection chambers (TPCs) with the capability of directionally detecting nuclear and electron recoils at $$\gtrsim $$ ≳ keV energies.
Chiara Lisotti+10 more
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