Zobrazeno 1 - 10
of 370
pro vyhledávání: '"HE, Li Ping"'
We study the time evolution of the numbers of charm mesons after the kinetic freezeout of the expanding hadron gas produced by the hadronization of the quark-gluon plasma from a central heavy-ion collision. The $\pi D$ reaction rates have contributio
Externí odkaz:
http://arxiv.org/abs/2307.07470
The thermal corrections to the propagator of a loosely bound charm-meson molecule in a pion gas are calculated to next-to-leading order in the heavy-meson expansion using a zero-range effective field theory. Ultraviolet divergences in the charm-meson
Externí odkaz:
http://arxiv.org/abs/2303.08072
We study the time evolution of the numbers of charm mesons after the kinetic freeze-out of the hadron gas produced by a central heavy-ion collision. The $\pi D^\ast \to \pi D^\ast$ reaction rates have $t$-channel singularities that give contributions
Externí odkaz:
http://arxiv.org/abs/2209.04972
Publikováno v:
Phys.Rev.D 106 (2022) 3, 034033
The double-charm tetraquark meson $T_{cc}^+(3875)$ can be produced in high-energy proton-proton collisions by the creation of the charm mesons $D^{*+} D^0$ at short distances followed by their binding into $T_{cc}^+$. The $T_{cc}^+$ can also be produ
Externí odkaz:
http://arxiv.org/abs/2202.03900
Publikováno v:
In Science of the Total Environment 10 April 2024 920
Publikováno v:
Phys. Rev. D 103, 071901 (2021)
The dependence of the production of the $X(3872)$ meson on the hadron multiplicity in $pp$ collisions has been used as evidence against $X$ being a charm-meson molecule. The argument is based in part on the incorrect assumption that the cross section
Externí odkaz:
http://arxiv.org/abs/2012.13499
Publikováno v:
Phys. Rev. D 103, 036014 (2021)
XEFT is a low-energy effective field theory for charm mesons and pions that provides a systematically improvable description of the $X(3872)$ resonance. To simplify calculations beyond leading order, we introduce a new formulation of XEFT with a dyna
Externí odkaz:
http://arxiv.org/abs/2010.05801
Publikováno v:
Phys. Rev. D 103, 016001 (2021)
In the heavy-quark limit, the two heavy quarks in a doubly heavy baryon or a doubly heavy tetraquark are bound by their color-Coulomb potential into a compact diquark. The doubly heavy hadrons are related by the approximate heavy-quark--diquark symme
Externí odkaz:
http://arxiv.org/abs/2006.08650
We calculate the cross section for $e^+ e^-$ annihilation into $D^{*0} \bar D^0 +\gamma$ at center-of-mass energies near the $D^{*0} \bar D^{*0}$ threshold under the assumption that $X(3872)$ is a weakly bound charm meson molecule. The Dalitz plot ha
Externí odkaz:
http://arxiv.org/abs/2004.12841
Autor:
Wang, Rui-zhi, Wang, Zhi-qiang, Tang, En-ling, Li, Lei, Yang, Guo-lai, Cheng, Chun, He, Li-ping, Han, Ya-fei
Publikováno v:
In Defence Technology October 2023 28:121-135