Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Hongwan Liu"'
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 6, Pp 1-26 (2022)
Abstract Light dark sectors in thermal contact with the Standard Model can naturally produce the observed relic dark matter abundance and are the targets of a broad experimental search program. A key light dark sector model is the pseudo-Dirac fermio
Externí odkaz:
https://doaj.org/article/39825d2e35a1436fad271e276e21078b
Publikováno v:
Physical Review
We fully explore the thermal freezeout histories of a vector-portal dark matter model, in the region of parameter space in which the ratio of masses of the dark photon $A^{\prime}$ and dark matter $\chi$ is in the range $1 \lesssim m_{A^{\prime}}/m_{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bec8a96484df42b9e5dbd0847309ebaf
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
Physical Review
We examine the vector-portal inelastic dark matter (DM) model with DM mass $m_\chi$ and dark photon mass $m_{A'}$, in the `forbidden dark matter' regime where $1 \lesssim m_{A'}/m_\chi \lesssim 2$, carefully tracking the dark sector temperature throu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::773f7ebb088b406769a7f19ac1a31f40
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
Physical Review Letters
Dark sectors provide a compelling theoretical framework for thermally producing sub-GeV dark matter, and motivate an expansive new accelerator and direct-detection experimental program. We demonstrate the power of constraining such dark sectors using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3e992f32c39cd3c8b05831a276a95e6
https://doi.org/10.1103/physrevlett.129.021302
https://doi.org/10.1103/physrevlett.129.021302
Machine learning can play a powerful role in inferring missing line-of-sight velocities from astrometry in surveys such as Gaia. In this paper, we apply a neural network to Gaia Early Data Release 3 (EDR3) and obtain line-of-sight velocities and asso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f16f44f00a85efb6e21ea432817280c3
http://arxiv.org/abs/2205.12278
http://arxiv.org/abs/2205.12278
Publikováno v:
Physical Review
Dark matter particles may bind with nuclei if there exists an attractive force of sufficient strength. We show that a dark photon mediator of mass ∼(10–100) MeV that kinetically mixes with Standard Model electromagnetism at the level of ∼10−3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04f41164cec16bde74853b817a2451b6
https://doi.org/10.1103/physrevd.105.095028
https://doi.org/10.1103/physrevd.105.095028
Publikováno v:
Physical Review Letters
Recent work has suggested that an additional ≲6.9 eV per baryon of heating in the intergalactic medium is needed to reconcile hydrodynamical simulations with Lyman-α forest absorption line widths at redshift z≃0.1. Resonant conversion of dark ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8b3a0f808cde50dd944bbf1a054b2d0
https://hdl.handle.net/20.500.11767/132355
https://hdl.handle.net/20.500.11767/132355
Publikováno v:
Physical Review D. 104
We derive new constraints on models of decaying and annihilating dark matter (DM) by requiring that the energy injected into the intergalactic medium (IGM) not overheat it at late times, when measurements of the Lyman-$\alpha$ forest constrain the IG
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc9977a51ec97099bdfb0e8c69d138f1
https://doi.org/10.1103/physrevd.104.043514
https://doi.org/10.1103/physrevd.104.043514
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
A dark photon may kinetically mix with the ordinary photon, inducing oscillations with observable imprints on cosmology. Oscillations are resonantly enhanced if the dark photon mass equals the ordinary photon plasma mass, which tracks the free electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c26699ad0710ed5300a471ea08ae72a6
http://hdl.handle.net/10261/233182
http://hdl.handle.net/10261/233182
Publikováno v:
Journal of High Energy Physics
Light dark sectors in thermal contact with the Standard Model naturally produce the observed relic dark matter abundance and are the targets of a broad experimental search program. A key light dark sector model is the pseudo-Dirac fermion with a dark
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::460f9b33e5d0c8bbcab996ac29b97713