Results 81 to 90 of about 2,741,953 (182)

Probing signatures of bounce inflation with current observations

European Physical Journal C: Particles and Fields, 2018
The aim of this paper is to probe the features of the bouncing cosmology with the current observational data. Basing on bounce inflation model, with high derivative term, we propose a general parametrization of primordial power spectrum which includes ...
Shulei Ni, Hong Li, Taotao Qiu, Wei Zheng, Xin Zhang   +4 more
doaj   +1 more source

Problems in High Energy Astrophysics [PDF]

arXiv, 2008
This contribution discusses some of the main problems in high energy astrophysics, and the perspectives to solve them using different types of "messengers": cosmic rays, photons and ...
arxiv  

Background experiment of the low energy x-ray telescope detectors on insight-HXMT

AIP Advances
The low energy x-ray telescope (LE) is one of the main instruments of the insight-hard x-ray modulation telescope, the first x-ray astronomical satellite of China.
Wei Li, Jingbin Lu, Yanji Yang, Yifan Zhang, Weiwei Cui, Juan Wang, Yong Chen   +6 more
doaj   +1 more source

Coincident Searches between Gravitational Waves and High-Energy Neutrinos with the Antares and LIGO/Virgo Detectors [PDF]

arXiv, 2012
A multi-messenger approach with gravitational-wave transients and high-energy neutrinos is expected to open new perspectives in the study of the most violent astrophysical processes in the Universe. In particular, gamma-ray bursts are of special interest as they are associated with astrophysical scenarios predicting significant joint emission of ...
arxiv  

Inclusion of the excited states quark propagator to the nucleon electromagnetic form factors in the perturbative chiral quark model

Results in Physics, 2020
Electromagnetic form factors of the nucleon are studied within the framework of the Perturbative Chiral Quark Model (PCQM). In a previous analysis of the nucleon electromagnetic form factors, the quark propagator used in the calculation was truncated to ...
J. Jarassriwilai, K. Pumsa-ard, P. Uttayarat   +2 more
doaj  

Uncertainty principle from the noise of gravitons

European Physical Journal C: Particles and Fields
The effect of the noise induced by gravitons in the case of a freely falling particle from the viewpoint of an external observer has been recently calculated in Phys. Rev. D 107, 066024 (2023) .
Soham Sen, Sunandan Gangopadhyay
doaj   +1 more source

Comparisons of magnetic charge and axial charge meson cloud distributions in the PCQM

Scientific Reports, 2017
The meson cloud distributions in r-space are extracted from the nucleon electromagnetic and axial form factors which are derived in the perturbative chiral quark model.
X. Y. Liu, Z. J. Liu, K. Khosonthongkee, A. Limphirat, Y. Yan   +4 more
doaj   +1 more source

Insight-HXMT Research Progress Since 2023

Kongjian kexue xuebao
Since the launch in June 2017, Insight-HXMT has been in service smoothly in orbit and particularly productive in 2023 and 2024. Among a total number of 238 papers published so far based on Insight-HXMT data, 63 were published in 2023, and 32 in the early
ZHANG Shu, ZHANG Shuang-Nan
doaj   +1 more source

Neutrino Astrophysics [PDF]

arXiv, 2012
A review of neutrino astrophysics is presented, including solar and atmospheric neutrinos; neutrino mass and oscillations; the supernova mechanism, supernova neutrino production, and associated nucleosynthesis; cosmological neutrinos and Big Bang nucleosynthesis; neutrino cooling and associated limits on neutrino properties; and high-energy ...
arxiv  

High Energy Phenomena In The Universe [PDF]

arXiv, 2009
Highlights of the 44th Rencontre De Moriond on High Energy Phenomena In The Universe which was held in La Thuile, Italy during February 1-8, 2009.
arxiv