李, 笑冰 郭, 冉冉 周, 宇 刘, 康宁 赵, 佳 龙, 芬 吴, 元芳 李, 治明
Published in
Chinese Physics C
Exploration of the QCD phase diagram and critical point is one of the main goals in current relativistic heavy-ion collisions. The QCD critical point is expected to belong to a three-dimensional (3D) Ising universality class. Machine learning techniques are found to be powerful in distinguishing different phases of matter and provide a new way to s...
曹, 庆宏 李, 浩林 徐, 凌霄 于, 江浩
Published in
Chinese Physics C
As one of the key properties of the Higgs boson, the Higgs total width is sensitive to the global profile of the Higgs boson couplings, and thus new physics would modify the Higgs width. We investigate the total width in various new physics models, including various scalar extensions, composite Higgs models, and the fraternal twin Higgs model. Typi...
Fazlollahi, H. R.
Published in
Chinese Physics C
Following the holographic principle, which suggests that the energy density of dark energy may be inversely proportional to the area of the event horizon of the Universe, we propose a new energy density of dark energy through the acceleration of the particle horizon scaled by the length of this parameter. The proposed model depends only on one free...
段, 文烽 李, 少平 李, 新强 杨, 亚东
Published in
Chinese Physics C
Updated measurements from the LHCb and SH0ES collaborations have respectively strengthened the deviations of the ratio in rare semi-leptonic -meson decays and the present-day Hubble parameter in the Universe, implying tantalizing hints of new physics beyond the standard model. In this paper, we consider a simple flavor-specific two-Higgs-doublet mo...
Giang, Bui Thi Ha
Published in
Chinese Physics C
A measurement of the Z production cross-section in collisions at the Large Hadron-electron Collider (LHeC) is presented for comparison to that at the International Linear Collider (ILC). The total cross-section depends strongly on the polarization of the initial and final beams and the electron beam energy ; the energy of the proton beam was set to...
李, 运 邹, 芝田 沈, 月龙 李, 营
Published in
Chinese Physics C
Using the perturbative QCD approach, we studied the effects of the hadronic structure of photons on the pure annihilation rediative decays and . These decays have small branching fractions due to the power suppression by , which makes them very sensitive to next-leading power corrections. The quark components and the related two-particle distributi...
Manna, Goutam Panda, Arijit Karmakar, Aninda Ray, Saibal Islam, Md. Rabiul
Published in
Chinese Physics C
The objective of this work is to generate a general formalism of gravity in the context of dark energy under the framework of K-essence emergent geometry with the Dirac-Born-Infeld (DBI) variety of action, where is the familiar Ricci scalar, is the DBI type non-canonical Lagrangian with , and ϕ is the K-essence scalar field. The emergent gravity me...
孙, 潮 倪, 如辉 陈, 慕阳
Published in
Chinese Physics C
The decay constants of the low lying S-wave mesons, i.e. and with , are calculated in the nonrelativistic quark model. The running coupling of the strong interaction is taken into account, and the uncertainties due to varying parameters and losing Lorentz covariance are considered carefully. As a byproduct, the decay constants of the low lying S-wa...
马, 腾 舒, 菁 肖, 明磊
Published in
Chinese Physics C
We present a general method of constructing unfactorizable on-shell amplitudes (amplitude basis) and build up their one-to-one correspondence to the independent and complete operator basis in effective field theory (EFT). We apply our method to the Standard Model EFT and identify the amplitude basis in dimensions 5 and 6, which correspond to the We...
刘, 志伟 李, 凯文 耿, 立升
Published in
Chinese Physics C
We study the baryon-baryon interactions with strangeness and corresponding momentum correlation functions in leading order covariant chiral effective field theory. The relevant low energy constants are determined by fitting to the latest HAL QCD simulations, taking into account all the coupled channels. Extrapolating the so-obtained strong interact...
