English
Related papers

Related papers: Charm and bottom quark masses from QCD moment sum …

200 papers

Using the new non-analytic reconstruction method obtained from Mellin-Barnes properties, one can extract the value $m_c(\bar{\text{MS}}) = 1.12 \pm 0.08 \;\; \text{GeV}$ from experimental data of the radiation-corrected measured hadronic…

High Energy Physics - Phenomenology · Physics 2013-02-08 David Greynat , Pere Masjuan

We use overlap fermions as valence quarks to calculate meson masses in a wide quark mass range on the $2+1$-flavor domain-wall fermion gauge configurations generated by the RBC and UKQCD Collaborations. The well-defined quark masses in the…

We compute two-loop corrections to the vector current matching coefficient involving two heavy quark masses. The result is applied to the computation of the $\Upsilon(1S)$ decay width into an electron or muon pair. We complement the…

High Energy Physics - Phenomenology · Physics 2021-10-04 Manuel Egner , Matteo Fael , Jan Piclum , Kay Schoenwald , Matthias Steinhauser

I review recent determinations of the (on-shell) charm- and beauty-quark masses in the framework of relativistic and non-relativistic ratios of Laplace transform QCD moment sum rules. The validity of the non-relativistic version of QCD sum…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. A. Dominguez

In this article, we study the mass spectrum of the scalar hidden charm and bottom tetraquark states with the QCD sum rules. The numerical results are compared with the corresponding ones from a relativistic quark model based on a…

High Energy Physics - Phenomenology · Physics 2010-04-23 Zhi-Gang Wang

We report results of our recent works [1,2] where we where the correlations between the c,b-quark running masses{m}_{c,b}, the gluon condensate<\alpha_s G^2> and the QCD coupling \alpha_s in the MS-scheme from an analysis of the charmonium…

High Energy Physics - Phenomenology · Physics 2023-08-08 Stephan Narison

We present a determination of the charm quark mass in lattice QCD with three active quark flavours. The calculation is based on PCAC masses extracted from $N_\mathrm{f}=2+1$ flavour gauge field ensembles at five different lattice spacings…

High Energy Physics - Lattice · Physics 2021-06-07 Jochen Heitger , Fabian Joswig , Simon Kuberski

We calculate the masses of baryons containing one, two, or three heavy quarks using lattice QCD. We consider all possible combinations of charm and bottom quarks, and compute a total of 36 different states with $J^P = \frac12^+$ and $J^P =…

High Energy Physics - Lattice · Physics 2014-11-26 Zachary S. Brown , William Detmold , Stefan Meinel , Kostas Orginos

We present a new QCD sum rule with high sensitivity to the continuum regions of charm and bottom quark pair production. Combining this sum rule with existing ones yields very stable results for the msbar quark masses, m_c(m_c)$ and m_b…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jens Erler , Mingxing Luo

Mass and width of a hidden charm-bottom axial-vector structure $T$ containing $bc \overline{b}\overline{c}$ quarks are calculated in QCD sum rule framework. It is treated as a diquark-antidiquark state built of scalar diquark and…

High Energy Physics - Phenomenology · Physics 2025-03-20 S. S. Agaev , K. Azizi , H. Sundu

We report on our ongoing determination of the charm quark mass and the masses and decay constants of various charmed mesons, obtained within a mixed-action setup. We employ $N_f=2+1$ CLS ensembles combined with a Wilson twisted mass valence…

High Energy Physics - Lattice · Physics 2021-12-02 A. Bussone , A. Conigli , J. Frison , G. Herdoíza , C. Pena , D. Preti , J. Á. Romero , J. Ugarrio

One of the most popular definition for the charm-quark mass is the charm-quark pole mass $m_c^{\rm pole}$. In this contribution, we extract the charm-quark pole mass through perturbative Quantum Chromo Dynamics (pQCD) analysis up to the…

High Energy Physics - Phenomenology · Physics 2021-04-09 A. Vafaee , K. Javidan , S. Atashbar Tehrani

Inspired by the results of recent experimental discoveries for charm and bottom baryons, the masses and magnetic moments of the heavy baryons with $J^P=3/2^+$ containing a single heavy quark are studied within light cone QCD sum rules…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. M. Aliev , K. Azizi , A. Ozpineci

We present a comprehensive analysis of the bottom-charmed ($B_c$) meson spectrum within the inverse matrix QCD sum rules formalism. In this framework, conventional QCD sum rules are recast as an inverse problem, allowing for the direct…

High Energy Physics - Phenomenology · Physics 2026-02-27 Halil Mutuk , Duygu Yıldırım

We present the determination of the charm quark mass, the masses, and decay constants of charmed mesons using thirteen 2+1 flavor gauge ensembles at five different lattice spacings $a\in[0.05,0.11]$ fm, 8 pion masses $m_{\pi}\in(130,360)$…

High Energy Physics - Lattice · Physics 2025-01-10 Hai-Yang Du , Bolun Hu , Mengchu Cai , Ying Chen , Heng-Tong Ding , Xiangyu Jiang , Chuan Liu , Liuming Liu , Yu Meng , Peng Sun , Ji-Hao Wang , Yi-Bo Yang , Dian-Jun Zhao

I report here on the (first) direct extraction of the running charm quark mass m_c(\nu) from the D-meson sum rules, and on the implications of this result for the estimate of the leptonic decay constants f_{D_s}. The outputs:…

High Energy Physics - Phenomenology · Physics 2009-10-31 Stephan Narison

We present the deterimination of the bottom quark mass using non-relativistic $\Upsilon$ Sum Rules at $\text{N}^3\text{LO}^*$[1]. The explicit dependence of $\overline{m}_b(\overline{m}_b)$ on the input value $\alpha_s(M_Z)$ is given for…

High Energy Physics - Phenomenology · Physics 2014-07-02 Nikolai Zerf

We report on a recent determination of the bottom quark mass from nonrelativistic (large-n) Upsilon sum rules with renormalization group improvement (RGI) at next-to-next-to-leading logarithmic (NNLL) order. The comparison to previous…

High Energy Physics - Phenomenology · Physics 2013-01-25 Maximilian Stahlhofen

We present preliminary results on the light, charmed and bottom baryon spectra using overlap valence quarks on the background of 2+1+1 flavours HISQ gauge configurations of the MILC collaboration. These calculations are performed on three…

High Energy Physics - Lattice · Physics 2018-04-18 Sourav Mondal , M. Padmanath , Nilmani Mathur

We present a determination of the strong coupling constant and heavy quark masses in (2+1)-flavor QCD using lattice calculations of the moments of the pseudo-scalar quarkonium correlators at several values of the heavy valence quark mass…

High Energy Physics - Lattice · Physics 2019-09-10 P. Petreczky , J. H. Weber
‹ Prev 1 4 5 6 7 8 10 Next ›