中文
相关论文

相关论文: A realistic method to access heavy meson light-con…

200 篇论文

Electromagnetic interactions are introduced in the effective chiral Lagrangian for heavy mesons which includes light vector particles. A suitable notion of vector meson dominance is formulated. The constraints on the heavy meson -light…

高能物理 - 唯象学 · 物理学 2014-11-17 Pankaj Jain , Arshad Momen , Joseph Schechter

The variational einbein field method is applied to the model of the QCD string with quarks at the ends for the case of light-light and heavy-light mesons. Special attention is payed to the proper string dynamics. The correct string slope of…

高能物理 - 唯象学 · 物理学 2009-11-07 A. V. Nefediev

In the high-temperature phase of QCD, the heavy quark momentum diffusion constant determines, via a fluctuation-dissipation relation, how fast a heavy quark kinetically equilibrates. This transport coefficient can be extracted from thermal…

高能物理 - 格点 · 物理学 2016-08-26 Harvey B. Meyer

We revisit QCD calculations of radiative heavy meson decay form factors by including the subleading power corrections from the twist-two photon distribution amplitude at next-to-leading-order in $\alpha_s$ with the method of the light-cone…

高能物理 - 唯象学 · 物理学 2020-02-11 Hua-Dong Li , Cai-Dian Lü , Chao Wang , Yu-Ming Wang , Yan-Bing Wei

In this work we outline a program for lattice QCD that would provide a first step toward understanding the strong and weak interactions of strange baryons. The study of hypernuclear physics has provided a significant amount of information…

核理论 · 物理学 2014-11-18 S. R. Beane , P. F. Bedaque , A. Parreno , M. J. Savage

Besides the conventional hadrons containing valence quarks and valence antiquarks, quantum chromodynamics (QCD) suggests the existence of the hybrid hadrons containing valence gluons in addition to the quarks and antiquarks, and some…

高能物理 - 格点 · 物理学 2012-09-11 Ziwen Fu

There have been rapid developments in the direct calculation in lattice QCD (LQCD) of the Bjorken-$x$ dependence of hadron structure through large-momentum effective theory (LaMET). LaMET overcomes the previous limitation of LQCD to moments…

高能物理 - 格点 · 物理学 2020-02-25 Rui Zhang , Zhouyou Fan , Ruizi Li , Huey-Wen Lin , Boram Yoon

We calculate the decay rate for $\eta_b \to \gamma \gamma$ in lattice QCD for the first time, providing a precise prediction for the Belle II experiment. Our calculation includes $u$, $d$, $s$ and $c$ quarks in the sea, using gluon field…

高能物理 - 格点 · 物理学 2025-12-19 Brian Colquhoun , Christine T. H. Davies , G. Peter Lepage

To study the light baryon light-cone distribution amplitudes (LCDAs), the spatial correlator of the light baryon has been calculated up to one-loop order in coordinate space. They reveal certain identities that do not appear in the study of…

高能物理 - 唯象学 · 物理学 2023-11-07 Chao Han , Jialu Zhang

The medium-modifications of processes characterized by the presence of a hard scale provide the most diverse tools to characterize the properties of the matter created in high-energy nuclear collisions. Indeed, jet quenching, the…

高能物理 - 唯象学 · 物理学 2015-05-30 Carlos A. Salgado

B-meson light-cone distribution amplitudes are discussed in these lectures in the framework of HQET. The evolution equation for the leading-twist distribution amplitude is derived in one-loop approximation. QCD sum rules for distribution…

高能物理 - 唯象学 · 物理学 2009-11-11 A. G. Grozin

In this series of lectures, I shall begin with the current investigations on phenomenology of hadron dynamics to demonstrate the importance of solving hadronic bound states within the framework of light-front (LF) QCD. Then, I will describe…

高能物理 - 唯象学 · 物理学 2007-05-23 Wei-Min Zhang

The study of the dynamics of strong interactions in the high-energy regime is a core line of frontier researches at the LHC as well as at new-generation colliding facilities. Here, the enhancement of energy logarithms due to diffractive…

高能物理 - 唯象学 · 物理学 2022-06-09 Francesco Giovanni Celiberto

I calculate heavy-light decay constants in a nonrelativistic potential model. The resulting estimate of heavy quark symmetry breaking conflicts with similar estimates from lattice QCD. I show that a semirelativistic potential model…

高能物理 - 唯象学 · 物理学 2011-07-19 James F. Amundson

In the last few years, numerical simulations of QCD on the lattice have reached a new level of accuracy. A wide range of thermodynamic quantities is now available in the continuum limit and for physical quark masses. This allows a…

高能物理 - 格点 · 物理学 2018-07-25 Claudia Ratti

I review recent progresses in heavy quarks physics on the lattice. I focus on decay constants and form factors relevant for the extraction of CKM matrix elements from experimental data. B-\bar{B} mixing is also discussed. In the last part…

高能物理 - 格点 · 物理学 2009-01-06 Michele Della Morte

We review the current status of heavy quark symmetry and its applications to weak decays of hadrons containing a single heavy quark. After an introduction to the underlying physical ideas, we discuss in detail the formalism of the heavy…

高能物理 - 唯象学 · 物理学 2010-11-01 Matthias Neubert

The heavy quark effective field theory (HQEFT) provides an effective way to deal with the heavy meson decays. In the paper, we adopt two different correlators to derive the light-cone sum rules of the $B \to \pi$ transition form factors…

高能物理 - 唯象学 · 物理学 2019-12-19 Rui-Yu Zhou , Lei Guo , Hai-Bing Fu , Wei Cheng , Xing-Gang Wu

We derive a QCD sum rule for the inverse moment of the $B_s$-meson light-cone distribution amplitude in HQET. Within this method, the $SU(3)_{fl}$ symmetry violation is traced to the strange quark mass and to the difference between strange…

高能物理 - 唯象学 · 物理学 2020-10-09 Alexander Khodjamirian , Rusa Mandal , Thomas Mannel

The cold and dense regime of the QCD phase diagram is to this day inaccessible to first principle lattice calculations owing to the sign problem. Here we present progress of an ongoing effort to probe this particularly difficult regime…

高能物理 - 格点 · 物理学 2015-11-04 Jonas Glesaaen , Mathias Neuman , Owe Philipsen
‹ 上一页 1 8 9 10 下一页 ›