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XXQCD SIGNED

Excited and exotic hadron resonances from Quantum Chromodynamics

Total Cost €

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EC-Contrib. €

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Partnership

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Project "XXQCD" data sheet

The following table provides information about the project.

Coordinator
THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN 

Organization address
address: College Green
city: DUBLIN
postcode: 2
website: www.tcd.ie

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Ireland [IE]
 Project website https://jeffersonlab.github.io/hadspec/index.html
 Total cost 175˙866 €
 EC max contribution 175˙866 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2017
 Duration (year-month-day) from 2017-06-30   to  2019-06-29

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN IE (DUBLIN) coordinator 175˙866.00

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 Project objective

This project will investigate the newly observed and poorly-understood `XYZ' resonances seen in the spectrum of charmonium resonances around the open-charm threshold. These states are difficult to explain in a simple quark model and a full understanding of their nature requires lattice quantum chromodynamics to provide an ab-initio framework. One important candidate to describe some of these states is a tetraquark configuration of a bound charm quark and anti-quark coupled non-trivially to a light quark and anti-quark. The technical expertise to perform these lattice calculations has only recently been developed and it will be tested and extended in this collaborative project by combining the expertise of the fellow and the PI.

To understand the nature of unstable states at thresholds for strong decays requires the lattice calculation of multi-meson states interacting in finite volume and analysed using the Luescher method, extended to include coupled-channel scattering amplitudes. These new techniques, pioneered by the fellow will be applied for the first time to study charmed mesons in D-Dbar and Ds-Dsbar scattering in the energy range relevant for studies of the mysterious XYZ resonances.

 Publications

year authors and title journal last update
List of publications.
2018 Antoni J. Woss, Christopher E. Thomas, Jozef J. Dudek, Robert G. Edwards, David J. Wilson
Dynamically-coupled partial-waves in ρπ isospin-2 scattering from lattice QCD
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP07(2018)043
Journal of High Energy Physics 2018/7 2019-06-11
2018 Raul A. Briceño, Jozef J. Dudek, Robert G. Edwards, David J. Wilson
Isoscalar π π ,   K K ¯ ,   η η scattering and the σ ,   f 0 ,   f 2 mesons from QCD
published pages: , ISSN: 2470-0010, DOI: 10.1103/physrevd.97.054513
Physical Review D 97/5 2019-06-11

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