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Minho Son20/08/2024, 09:00
One-point correlators of conserved charges are argued to be perturbatively IR safe in QCD, which includes not only the density of energy, but also those of electric charge, isospin and baryon number. Theoretical and phenomenological aspects of the density matrix of one-point correlators will be discussed in the context of the states produced by a chiral current, as in the decay of a polarized...
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Jing Ren (Institute of High Energy Physics)20/08/2024, 09:30
As one of the major dark matter candidates, the ultralight Axion-Like Dark Matter (ALDM) exhibits a pronounced wave nature on astronomical scales and offers a promising solution to small-scale structure issues within local galaxies. While the linearly polarized pulsar light travels through the ALDM galactic halo, its position angle (PA) can be subject to an oscillation induced by the ALDM...
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Prof. JING SHU (PKU)20/08/2024, 10:00
Dark photons have emerged as promising candidates for dark matter, and their search is a top priority in particle physics, astrophysics, and cosmology. We report the first use of a tunable niobium superconducting radio-frequency cavity for a scan search of dark photon dark matter with innovative data analysis techniques. We mechanically adjusted the resonant frequency of a cavity submerged in...
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kenji kadota20/08/2024, 11:00
We explore the sensitivity of the radio telescope to the light dark matter such as sub-GeV dark matter and axion-like particles. We specifically analyze the impact of these light dark matter candidates on the formation of large-scale structures and the resultant 21 cm radio signals that the SKA is poised to detect. We will also discuss the complementarity of these forthcoming radio signal...
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Yi Wang (HKUST)20/08/2024, 11:30
It’s generally believed that the energy scale of cosmic inflation is much higher than that of the current particle physics colliders. Cosmological collider makes use of the extremely high energy scale of inflation, to determine the features of particles excited by the inflationary background, independent of the details of inflation models. In this talk, we will overview how to use the...
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Yi-Ming Zhong20/08/2024, 12:00
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Yue-Lin Sming Tsai (Purple Mountain Observatory)
We will discuss the remaining parameter space for WIMP-like dark matter with thermal relic density, focusing on two scenarios: the small interaction rate region and the small mass region. In the small interaction rate region, we reanalyze the prospects of detecting dark matter annihilation signals in the Galactic Center, particularly near the supermassive black hole (Sgr A*), by examining...
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