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Your search keyword '"Yu, Jiang"' showing total 30 results
Start Over Author "Yu, Jiang" Journal journal of high energy physics
30 results on '"Yu, Jiang"'

27. Probing extended scalar sectors with precision e+e−→ Zh and Higgs diphoton studies.

Author

Ramsey-Musolf, Michael J., Yu, Jiang-Hao, and Zhou, Jia

Subjects
*HIGGS bosons, *LARGE Hadron Collider, *STANDARD model (Nuclear physics), *PARTICLE interactions
Abstract

We compute the one-loop corrections to σ(e+e−→ Zh) arising from representative extended Standard Model scalar sector scenarios. According to the new scalar SU(2)L representations, we consider the inert doublet, real and complex triplet, quintuplet, and septuplet models. With the sub-percent level precision expected for prospective future e+e− collider measurements of σ(e+e−→ Zh), studies of the Higgsstrahlung process will probe extended scalar sector particle spectrum and interactions in a manner complementary to direct searches at the Large Hadron Collider and possible future pp colliders. We also compare with the sensitivity of future Higgs diphoton decay rate measurements. We find that the σ(e+e−→ Zh) and Γ(h → γγ) complementarity is particularly pronounced for the complex triplet model. [ABSTRACT FROM AUTHOR]

Published
2021
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29. Chiral phase transition of QCD at finite chemical potential

Author

Huan Chen, Hong-Shi Zong, Wei-Min Sun, and Yu Jiang

Subjects
Quark, Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Phase transition, Current quark, High Energy Physics::Lattice, Quantum electrodynamics, High Energy Physics::Phenomenology, Propagator, Chiral phase, Symmetry breaking, Gluon
Abstract

In the framework of Dyson-Schwinger equation (DSE) approach, we propose a chemical potential dependent effective gluon propagator and the quark gap equation is solved with such a gluon propagator. It is found for the first time in DSE approach that with light current quark mass m not equal 0, the Wigner solution will appear at some chemical potential mu(W). Based on this, the chiral phase transition at finite chemical potential is studied and the result shows that it is a first-order phase transition. The results are compared with the known results in the literature.

Published
2013

30. A model study of quark number susceptibility at finite temperature beyond rainbow-ladder approximation

Author

Liu-Jun Luo, Hong-Shi Zong, and Yu Jiang

Subjects
Quantum chromodynamics, Quark, Physics, Nuclear and High Energy Physics, Particle physics, Truncation, High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, Zero (complex analysis), FOS: Physical sciences, Rainbow, Type (model theory), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Transition point, Quantum electrodynamics, Vertex (curve)
Abstract

In this paper we calculate the quark number susceptibility (QNS) of QCD at finite temperature under the rainbow-ladder and Ball-Chiu type truncation schemes of the Dyson-Schwinger approach. It is found that the difference between the result of the rainbow-ladder truncation and that of Ball-Chiu type truncation is small, which shows that the dressing effect of the quark-gluon vertex on the QNS at finite temperature is small. It is also found that at low temperature the quark number susceptibility is nearly zero and it increases sharply when the temperature approaches the chiral phase transition point. A comparison between the result in the present paper with those in the literature is made., Comment: 17 pages, 6 figures

Published
2011

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