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We estimate the $\bar D^*D^*_0$ and $\bar B^*B^*_0(1^--)$ molecules masses and couplings using QCD spectral sum rules (QSSR)known perturbatively to N2LO of PT series and including the contributions of non-perturabtive condensates up to the…

高能物理 - 唯象学 · 物理学 2014-10-02 F. Fanomezana , S. Narison , A. Rabemananjara

The shift of the p-wave $D_s$ meson mass due to coupling to the DK channel is calculated without fitting parameters using the chiral Lagrangian. As a result the original $Q\bar q$ mass 2.490 MeV generically calculated in the relativistic…

高能物理 - 唯象学 · 物理学 2008-11-26 Yu. A. Simonov , J. A. Tjon

We study $D_s^+ D_s^-$ and $D \bar D$ states assuming that they are hadronic molecules with $J^{PC}=0^{++}$ quantum number. We use two-point QCD sum rule formalism and extract the mass and decay constant values of these states. We take into…

高能物理 - 唯象学 · 物理学 2023-02-02 Halil Mutuk

A precision measurement of the D^0 meson mass has been made using ~281 pb-1 of e+e- annihilation data taken with the CLEO-c detector at the psi(3770) resonance. The exclusive decay D^0 -> (Ks phi) has been used to obtain…

高能物理 - 实验 · 物理学 2010-04-08 C. Cawlfield , CLEO Collaboration

We determine the MS-bar charm quark mass from a charmonium QCD sum rules analysis. On the theoretical side we use input from perturbation theory at O(alpha_s^3). Improvements with respect to previous O(alpha_s^3) analyses include (1) an…

高能物理 - 唯象学 · 物理学 2013-07-30 Bahman Dehnadi , Andre H. Hoang , Vicent Mateu , S. Mohammad Zebarjad

We derive a new QCD sum rule for $D(0^+)$ which has only the $D\pi$ continuum with a resonance in the hadron side, using the assumption similar to that has been successfully used in our previous work to the mass of $D_s(0^+)(2317)$. For the…

高能物理 - 唯象学 · 物理学 2007-05-23 Yuan-Ben Dai , Shi-Lin Zhu

We investigate whether the newly observed narrow resonance $Z_{c}(4025)$ can be described as a $D^{*}\bar{D^{*}}$ molecular state with quantum numbers $J^{P}=1^{+}$. Using QCD sum rules, we consider contributions up to dimension six in the…

高能物理 - 唯象学 · 物理学 2014-03-19 Chun-Yu Cui , Yong-Lu Liu , Ming-Qiu Huang

We investigate the in-medium masses of $D$ and $\bar{D}$ mesons in the isospin-asymmetric nuclear matter at finite temperatures arising due to the interactions with the nucleons, the scalar isoscalar meson $\sigma$, and the scalar…

核理论 · 物理学 2014-11-21 Arvind Kumar , Amruta Mishra

We present a sum-rule extraction of the decay constants of the D, Ds, B, and Bs mesons from the two-point correlator of heavy-light pseudoscalar currents [1]. Our main emphasis is laid on the control over the uncertainties in the decay…

高能物理 - 唯象学 · 物理学 2014-11-21 Wolfgang Lucha , Dmitri Melikhov , Silvano Simula

We calculate the mass and decay constant of the $D_2^*(2460)$ tensor meson in the framework of QCD sum rules. The obtained result on the mass is compatible with the experimental data. Our prediction on the decay constant can be checked in…

高能物理 - 唯象学 · 物理学 2013-08-08 H. Sundu , K. Azizi

We present a selection of recent results from the BESIII collaboration, including both charmonium and $D$ meson physics. We first discuss the observation of a charged, charmonium-like state, the $Z_c(3900)$. Conventional charmonium topics…

高能物理 - 实验 · 物理学 2019-08-13 Roy A. Briere

We extend previous calculations of leading-order correlation functions of spin-0 and spin-1 light quarkonium hybrids to include QCD condensates of dimensions five and six, with a view to improving the stability of QCD sum-rules analyses in…

高能物理 - 唯象学 · 物理学 2018-12-05 J. Ho , R. Berg , Wei Chen , D. Harnett , T. G. Steele

We have measured the vector-pseudoscalar mass splitting $M(D_s^{*+})-M(D_s^+) = 144.22\pm 0.47\pm 0.37 MeV$, significantly more precise than the previous world average. We minimize the systematic errors by also measuring the…

高能物理 - 唯象学 · 物理学 2012-08-27 The CLEO Collaboration

The decay width and the mass of the D_s1(2536) have been measured via the decay channel D_s1 -> D*+K_S using 232 fb^-1 of data collected with the BABAR detector at the PEP-II asymmetric-energy e+e- storage ring. The result for the decay…

高能物理 - 实验 · 物理学 2007-05-23 The BABAR Collaboration , B. Aubert

Stimulated by the renewed observation of $D_{s0}^{*}(2317)$ signal and its updated mass value $2318.3\pm1.2\pm1.2~\mbox{MeV}/c^{2}$ in the process $e^{+}e^{-}\rightarrow D_{s}^{*+}D_{s0}^{*}(2317)^{-}+c.c.$ by BESIII Collaboration, we…

高能物理 - 唯象学 · 物理学 2019-01-15 Jian-Rong Zhang

We elaborate masses of open-charm mesons (c\bar{d} and c\bar{s}) with J^P=0^-,1^-,0^+,1^+ from a viewpoint of ordinary light-heavy systems in the analysis of standard Borel-transformed QCD sum rule. This analysis is implemented with the…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Hayashigaki , K. Terasaki

The decay width and mass of the Ds1(2536)+ meson are measured via the decay channel Ds1+ -> D*+KS0 using 385 fb^-1 of data recorded with the BABAR detector in the vicinity of the Y(4S) resonance at the PEP-II asymmetric-energy…

高能物理 - 实验 · 物理学 2015-03-19 The BABAR Collaboration , J. P. Lees

We present a determination of the decay constants of the $D$ and $D_s$ mesons from lattice QCD, each with a total error of about 2%, approximately a factor of three better than previous calculations. We have been able to achieve this…

高能物理 - 格点 · 物理学 2011-06-15 Eduardo Follana

A precision measurement of the mass of the h_c(1P1) state of charmonium has been made using a sample of 24.5 million psi(2S) events produced in e+e- annihilation at CESR. The reaction used was psi(2S) -> pi0 h_c, pi0 -> gamma gamma, h_c ->…

高能物理 - 实验 · 物理学 2010-04-08 CLEO Collaboration , S. Dobbs

The recent experimental data on $D^{+}-D^{0}$ and $D^{\ast\, +}-D^{\ast\,0}$ mass differences are used as inputs in the QCD sum rules to obtain new estimates on the mass difference of light quarks and on the difference of their condensates:…

高能物理 - 唯象学 · 物理学 2011-02-01 V. L. Eletsky , B. L. Ioffe