English
Related papers

Related papers: Charmonium spectrum including higher spin and exot…

200 papers

We study the charmonium spectrum including higher spin and gluonic excitations. We determine an upper limit on the mixing of the eta_c ground state with light pseudoscalar flavour-singlet mesons and investigate the mixing of charmonia near…

High Energy Physics - Lattice · Physics 2015-03-19 Gunnar S. Bali , Sara Collins , Christian Ehmann

We study the spectra of heavy-light and heavy-heavy mesons containing charm quarks, including higher spin states. We use two sets of $N_f = 2 + 1$ gauge configurations, one set from QCDSF using the SLiNC action, and the other configurations…

We present highly excited spectra of charmonium, charm-light and charm-strange mesons using the dynamical anisotropic lattices of the Hadron Spectrum Collaboration. The use of novel techniques has allowed us to extract these spectra with a…

High Energy Physics - Lattice · Physics 2013-12-06 Graham Moir , Michael Peardon , Sinead M. Ryan , Christopher E. Thomas , Liuming Liu

We present a progress report on our study of the charmonium spectrum in full QCD on anisotropic lattices generated by the Hadron Spectrum Collaboration. We adopt a large basis of interpolating operators to extract the excited charmonium…

High Energy Physics - Lattice · Physics 2015-03-19 Liuming Liu , Sinead M. Ryan , Mike Peardon , Graham Moir , Pol Vilaseca

We review selected lattice results on the charmonium spectrum and first attempts to search for the existence of exotic states. The hadro-quarkonium model was proposed to interpret some of the exotic states as a quarkonium core inside a…

High Energy Physics - Lattice · Physics 2019-05-01 Francesco Knechtli

We present our most recent results on the charmonium spectrum using relativistic Wilson fermions. We study the dependence of the spectrum on the charm quark mass and the Wohlert-Sheikholeslami improvement term.

High Energy Physics - Lattice · Physics 2010-11-19 Aida X. El-Khadra

We present a calculation of the charmonium spectrum with three flavors of dynamical staggered quarks from gauge configurations that were generated by the MILC collaboration. We use the Fermilab action for the valence charm quarks. Our…

We present a spectrum of highly excited charmonium mesons up to around 4.5 GeV calculated using dynamical lattice QCD. Employing novel computational techniques and the variational method with a large basis of carefully constructed…

Charmonium is an attractive system for the application of lattice QCD methods. While the sub-threshold spectrum has been considered in some detail in previous works, it is only very recently that excited and higher-spin states and further…

High Energy Physics - Phenomenology · Physics 2014-11-18 Jozef J. Dudek

We present our final results of the charmonium spectrum in quenched QCD on anisotropic lattices. Simulations are made with the plaquette gauge action and a tadpole improved clover quark action employing $\xi = a_s/a_t = 3$. We calculate the…

The charmonium-nucleon interaction is studied by the time-dependent HAL QCD method. We use a larger lattice volume and the relativistic heavy quark action for charm quark to obtain less systematic errors than those in our previous study. As…

Nuclear Theory · Physics 2019-05-08 Takuya Sugiura , Yoichi Ikeda , Noriyoshi Ishii

We present a first study of the charmonium spectrum on N_f=2 dynamical, anisotropic lattices. We take advantage of all-to-all quark propagators to build spatially extended interpolating operators to increase the overlap with states not…

High Energy Physics - Lattice · Physics 2009-11-11 K. J. Juge , A. O'Cais , M. B. Oktay , M. J. Peardon , S. M. Ryan

We report on recent results for the spectrum of heavy quarkonia. Using coarse and anisotropic lattices we achieved an unprecedented control over statistical and systematic errors for higher excited states such as exotic hybrid states. In a…

In order to test different models proposed for some states discovered recently in the charmonium mass range that do not fit into the pattern predicted by the conventional quark model, we derive predictions for the spectrum within the…

High Energy Physics - Phenomenology · Physics 2015-07-15 Martin Cleven , Feng-Kun Guo , Christoph Hanhart , Qian Wang , Qiang Zhao

This contribution briefly discusses some new theoretical results for the properties of charmonium, especially the "higher charmonium" states above open-charm threshold. In particular we discuss the spectrum of states, open-flavor strong…

High Energy Physics - Phenomenology · Physics 2009-11-10 T. Barnes

We present results from an ongoing study of mass splittings of the lowest lying states in the charmonium system. We use clover valence charm quarks in the Fermilab interpretation, an improved staggered (asqtad) action for sea quarks, and…

High Energy Physics - Lattice · Physics 2012-11-20 Carleton DeTar , A. S. Kronfeld , Song-Haeng Lee , L. Levkova , D. Mohler , J. N. Simone

We present results for the low-lying spectrum of D and D_s mesons from a lattice QCD calculation on 2+1 flavor Clover-Wilson configurations generated by the PACS-CS collaboration. In particular S- and P-wave states of charmed and…

High Energy Physics - Lattice · Physics 2011-09-01 Daniel Mohler , R. M. Woloshyn

Results are presented for the low-lying spectrum of D and D_s mesons calculated in lattice QCD using 2+1 flavor Clover-Wilson configurations made available by the PACS-CS collaboration. For the heavy quark, the Fermilab method is employed.…

High Energy Physics - Lattice · Physics 2013-05-29 Daniel Mohler , R. M. Woloshyn

A selected survey is presented of the recent progress in hadron spectroscopy. This includes spin-singlet charmonium states, excitations of charmonium and open-charm mesons, double-charm baryons, and pentaquark candidates. Models proposing…

High Energy Physics - Phenomenology · Physics 2017-08-23 J. -M. Richard

We compute the spectrum of excited nucleons using the anisotropic Wilson lattice with two flavors of dynamical fermions. Using optimized sets of operators which transform irreducibly under the octahedral group, matrices of correlation…

‹ Prev 1 2 3 10 Next ›