Charmonia in moving frames

S. Prelovsek; G. Bali; S. Collins; D. Mohler; M. Padmanath; S. Piemonte; S. Weishaeupl

doi:10.1051/epjconf/201817514006

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Proceedings

Open Access

EPJ Web of Conferences 175, 14006 (2018)
https://doi.org/10.1051/epjconf/201817514006

Charmonia in moving frames

S. Prelovsek¹^,2^,3^*, G. Bali¹, S. Collins¹, D. Mohler⁴, M. Padmanath¹, S. Piemonte¹ and S. Weishaeupl¹

¹ Institute für Theoretische Physik, Universität Regensburg, D-93040, Germany
² Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
³ Jozef Stefan Institute, 1000 Ljubljana, Slovenia
⁴ Helmholtz-Institut Mainz, 55099 Mainz, Germany
⁵ Johannes Gutenberg Universität Mainz, 55099 Mainz, Germany

^* Speaker, e-mail: sasa.prelovsek@ijs.si

Published online: 26 March 2018

Abstract

Lattice simulation of charmonium resonances with non-zero momentum provides additional information on the two-meson scattering matrices. However, the reduced rotational symmetry in a moving frame renders a number of states with different J^P in the same lattice irreducible representation. The identification of JP for these states is particularly important, since quarkonium spectra contain a number of states with different J^P in a relatively narrow energy region. Preliminary results concerning spin-identification are presented in relation to our study of charmonium resonances in flight on the N_f = 2 + 1 CLS ensembles.

© The Authors, published by EDP Sciences, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).