This title appears in the Scientific Report :
2008
Please use the identifier:
http://dx.doi.org/10.1016/j.nuclphysb.2007.07.030 in citations.
Please use the identifier: http://hdl.handle.net/2128/10530 in citations.
The Delta-resonance in a finite volume
The Delta-resonance in a finite volume
We study the extraction of Delta-resonance parameters from lattice data for small quark masses, corresponding to the case of an unstable Delta. To this end, we calculate the spectrum of the correlator of two Delta-fields in a finite Euclidean box up-to-and-including O(epsilon(3)) in the small scale...
Saved in:
Personal Name(s): | Bernard, V. |
---|---|
Meissner, U.G. / Rusetsky, A. | |
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 Jülich-Aachen Research Alliance - Simulation Sciences; JARA-SIM |
Published in: |
Nuclear physics |
Imprint: |
Amsterdam
North-Holland Publ. Co.
2008
|
Physical Description: |
1 - 20 |
DOI: |
10.1016/j.nuclphysb.2007.07.030 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Nuclear Physics B
788 |
Subject (ZB): | |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10530 in citations.
We study the extraction of Delta-resonance parameters from lattice data for small quark masses, corresponding to the case of an unstable Delta. To this end, we calculate the spectrum of the correlator of two Delta-fields in a finite Euclidean box up-to-and-including O(epsilon(3)) in the small scale expansion using infrared regularization. On the basis of our numerical study, we argue that the extraction of the parameters of the Delta-resonance (in particular, of the mass and the pion-nucleon-delta coupling constant) from the measured volume dependence of the lowest energy levels should be feasible. (c) 2007 Elsevier B.V. All rights reserved. |