中文
相关论文

相关论文: Erratum: QCD sum rules study of the $J^{PC}=1^{--}…

200 篇论文

We investigate the mass spectra of closed-charm mesons with $ J^{PC} = 1^{--} $, for hybrid charmonium, molecules, and diquark-antidiquark operators, in quenched lattice QCD with exact chiral symmetry. For two lattice volumes $ 24^3 \times…

高能物理 - 格点 · 物理学 2008-11-26 TWQCD Collaboration , Ting-Wai Chiu , Tung-Han Hsieh

A thorough study of the $J^{PC}=1^{++}$ elastic $D^{0}\bar{D}^{\ast0}$ and $D^{+}D^{\ast-}$ scattering, where the form of the meson-meson interaction is inferred from lattice QCD calculations of string breaking, is carried out for…

高能物理 - 唯象学 · 物理学 2023-03-03 R. Bruschini , P. González

We analyse the most recent experimental data regarding D^0 - \bar{D^0} mixing, allowing for CP violation. We focus on the dispersive part of the mixing amplitude, M^D_{12}, which is sensitive to new physics contributions. We obtain a…

高能物理 - 唯象学 · 物理学 2009-11-07 Guy Raz

A study of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ mesons in inclusive $c\bar{c}$ production is presented using 232 ${\rm fb}^{-1}$ of data collected by the BaBar experiment near $\sqrt{s} = 10.6$ \gev. Final states consisting of a…

高能物理 - 实验 · 物理学 2010-03-19 The BABAR Collaboration , B. Aubert

We determine the charm quark mass ${\hat m}_c({\hat m}_c)$ from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD. Only experimental data for the charm resonances below the continuum threshold are…

高能物理 - 唯象学 · 物理学 2017-08-01 Jens Erler , Pere Masjuan , Hubert Spiesberger

We extract a relatively precise value for the decay constant of the D+ meson by measuring B(D+ -> mu+ nu)=(4.40 +/- 0.66 {+0.09}{-0.12}) x 10^{-4}, using 281 inverse-pb of data taken on the psi(3770) resonance with the CLEO-c detector. We…

高能物理 - 实验 · 物理学 2010-04-08 M. Artuso , CLEO Collaboration

QCD Gaussian sum-rules are used to explore the vector ($J^{PC}=1^{--}$) strangeonium hybrid interpretation of the $Y(2175)$. Using a two-resonance model consisting of the $Y(2175)$ and an additional resonance, we find that the relative…

高能物理 - 唯象学 · 物理学 2019-08-21 J. Ho , R. Berg , T. G. Steele , W. Chen , D. Harnett

Correlation functions of QCD currents with quantum numbers of nucleon and $\Delta$-isobar are considered at finite temperatures. Corrections of order $T^4$ to the correlators are calculated and interpreted in terms of thermal mass shifts…

高能物理 - 唯象学 · 物理学 2009-10-28 V. L. Eletsky

We report the observation of a new $D_{sJ}$ meson produced in $B^{+} \to \bar{D}^{0} D_{sJ} \to \bar{D}^{0} D^{0} K^{+}$. This state has a mass of $M=2708 \pm 9 ^{+11}_{-10} \rm{MeV}/{\it c}^{2}$, a width $\Gamma = 108 \pm 23 ^{+36}_{-31}…

高能物理 - 实验 · 物理学 2019-08-13 J. Brodzicka , H. Palka

In this talk we discuss results of a new extraction of the MS-bar charm quark mass using relativistic QCD sum rules at O(as**3) based on moments of the vector and the pseudoscalar current correlators and using the available experimental…

高能物理 - 唯象学 · 物理学 2014-11-21 Bahman Dehnadi , Andre H. Hoang , Vicent Mateu

The parity violation in cesium atom is analysed in the framework of the models based on the SU(3)_C X SU(3)_L X U(1)_N gauge group. It is shown that in the minimal version, the main contribution to a deviation of weak charge \Delta Q_W due…

高能物理 - 唯象学 · 物理学 2008-11-26 Hoang Ngoc Long , Le Phuoc Trung

We update the experimental moments for the charm quark as computed in arXiv:hep-ph/0702103. and used in arXiv:0907.2110 and arXiv:1010.6157 for the determination of the charm-quark mass. The new value for the MSbar charm-quark mass reads…

We present a sum-rule extraction of the decay constants of the charmed mesons D and D_s from the two-point correlator of pseudoscalar currents. First, we compare the perturbative expansion for the correlator and the decay constant performed…

高能物理 - 唯象学 · 物理学 2015-03-18 Wolfgang Lucha , Dmitri Melikhov , Silvano Simula

Tevatron Experiments: CDF and D$\not$O collected during October 1992 and February 1996 (Run I) a data sample of roughly 120 $pb^{-1}$ $ p \bar{p}$ collisions at a center of mass energy $\sqrt{s}=$ 1.8 TeV. A large variety of physical…

高能物理 - 实验 · 物理学 2007-05-23 C. Pagliarone

Using the general form of the baryon currents, we calculate the meson-baryon coupling constants and the F/D ratio within the framework of light cone QCD sum rules in the SU(3) flavor symmetry limit. The dependence of the results on the…

高能物理 - 唯象学 · 物理学 2009-10-31 T. M. Aliev , A. Ozpineci , M. Savci

In this article, we calculate the mass shift and decay constant of isospin averaged pseudoscalar ($D^+$,$D^0$) and scalar ($D^+_0$,$D^0_0$) mesons by the magnetic field induced quark and gluon condensates at finite density and temperature…

高能物理 - 唯象学 · 物理学 2020-01-15 Rajesh Kumar , Arvind Kumar

We report the observation of a new DsJ meson produced in B+ -> D0-bar DsJ -> D0-bar D0 K+. This state has a mass of M = 2715 +-11(stat) +11-14(syst) MeV/c^2, a width Gamma = 115 +-20(stat) +36-32(syst) MeV/c^2 and a spin-parity 1-. The…

高能物理 - 实验 · 物理学 2011-11-09 The Belle Collaboration , K. Abe

Measurement results on $D^0$-$\bar D^0$ mixing and CP violation are presented. FOCUS, a fixed target experiment at Fermilab, collected a high statistics photo-produced charm sample collected during the 96-97 run. We reconstructed more than…

高能物理 - 实验 · 物理学 2007-05-23 Hwanbae Park

We propose that the $X(3915)$ observed in the $J/\psi\,\omega$ channel is the same state as the $\chi_{c2}(3930)$, and the $X(3960)$, observed in the $D_s^+D_s^-$ channel, is an $S$-wave $D_s^+ D_s^-$ hadronic molecule. In addition, the…

高能物理 - 唯象学 · 物理学 2023-09-14 Teng Ji , Xiang-Kun Dong , Miguel Albaladejo , Meng-Lin Du , Feng-Kun Guo , Juan Nieves , Bing-Song Zou

While the charmonium model has been effective in describing ccbar bound mesons, there have been many recently discovered charmonium-like states it cannot accommodate. Here I provide a review of recent results from the B-factories including…

高能物理 - 实验 · 物理学 2009-01-16 Bryan Fulsom