Zobrazeno 1 - 10
of 621
pro vyhledávání: '"Zu Lei"'
Publikováno v:
Eur. Phys. J. C 84, 606 (2024)
Primordial black holes (PBHs) are the plausible candidates for the cosmological dark matter. Theoretically, PBHs with masses $M_{\rm PBH}$ in the range of $4\times10^{14}\sim 10^{17}\,{\rm g}$ can emit sub-GeV electrons and positrons through Hawking
Externí odkaz:
http://arxiv.org/abs/2403.04988
Publikováno v:
JCAP08(2024)003
We investigate the elastic scattering cross section between dark matter and protons using the DES Year 3 weak lensing data. This scattering induces a dark acoustic oscillation structure in the matter power spectra. To address non-linear effects at lo
Externí odkaz:
http://arxiv.org/abs/2402.18880
Publikováno v:
Phys. Rev. D 109, 024041 (2024)
Mergers of binary compact objects, accompanied with electromagnetic (EM) counterparts, offer excellent opportunities to explore varied cosmological models, since gravitational waves (GWs) and EM counterparts always carry the information of luminosity
Externí odkaz:
http://arxiv.org/abs/2401.01567
Observations from the James Webb Space Telescope (JWST) have unveiled several galaxies with stellar masses $M_*\gtrsim10^{10} M_\odot$ at redshifts $7.4\lesssim z\lesssim 9.1$. These remarkable findings indicate an unexpectedly high stellar mass dens
Externí odkaz:
http://arxiv.org/abs/2307.11374
Publikováno v:
Sci.Bull. 69 (2024) 741-746
Several Pulsar Timing Array (PTA) collaborations have recently provided strong evidence for a nHz Stochastic Gravitational-Wave Background (SGWB). Here we investigate the implications of a first-order phase transition occurring within the early unive
Externí odkaz:
http://arxiv.org/abs/2306.16769
Autor:
Lei, Lei, Zu, Lei, Yuan, Guan-Wen, Shen, Zhao-Qiang, Wang, Yi-Ying, Wang, Yuan-Zhu, Su, Zhen-Bo, Ren, Wen-ke, Tang, Shao-Peng, Zhou, Hao, Zhang, Chi, Jin, Zhi-Ping, Feng, Lei, Fan, Yi-Zhong, Wei, Da-Ming
Publikováno v:
Sci. China-Phys. Mech. Astron. 67, 229811 (2024)
Studies have proposed that there is evidence for cosmological coupling of black holes (BHs) with an index of $k\approx 3$; hence, BHs serve as the astrophysical source of dark energy. However, the data sample is limited for the redshifts of $\leq 2.5
Externí odkaz:
http://arxiv.org/abs/2305.03408
Autor:
Zu, Lei, Zhang, Chi, Chen, Hou-Zun, Wang, Wei, Tsai, Yue-Lin Sming, Tsai, Yuhsin, Luo, Wentao, Fan, Yi-Zhong
Publikováno v:
JCAP08(2023)023
We explore the potential of precision cosmological data to study non-minimal dark sectors by updating the cosmological constraint on the mirror twin Higgs model (MTH). The MTH model addresses the Higgs little hierarchy problem by introducing dark sec
Externí odkaz:
http://arxiv.org/abs/2304.06308
Publikováno v:
JCAP05(2024)129
Omega Centauri, the largest known globular cluster in the Milky Way, is believed to be the remains of a dwarf galaxy's core. Giving its potential abundance of dark matter (DM), it is an attractive target for investigating the nature of this elusive s
Externí odkaz:
http://arxiv.org/abs/2303.14117
Publikováno v:
JCAP 08 (2023) 036
New long-lived particles produced at the colliders may escape from conventional particle detectors. Using satellites or ground telescopes, we can detect the photons generated from the annihilation of the star-captured dark matter into a pair of long-
Externí odkaz:
http://arxiv.org/abs/2302.09951
Publikováno v:
Light: Science & Applications, Vol 13, Iss 1, Pp 1-25 (2024)
Abstract Ultrasound sensors play an important role in biomedical imaging, industrial nondestructive inspection, etc. Traditional ultrasound sensors that use piezoelectric transducers face limitations in sensitivity and spatial resolution when miniatu
Externí odkaz:
https://doaj.org/article/22244a5fe4a84b38b81e31e5b3915f70
