Bali, Gunnar S. and Bursa, Francis (2008) Mesons at large N-c from lattice QCD. JOURNAL OF HIGH ENERGY PHYSICS (9): 110. ISSN 1029-8479,
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We calculate the pion and rho meson masses in quenched SU(N) gauge theories for N = 2, 3, 4 and 6. Extrapolating these results to the chiral and large-N limits, we find m(rho) = (1.670 +/- 0.024)root sigma for the rho meson mass at a fixed lattice spacing a approximate to 0.2093 sigma(-1/2) approximate to 0.093 fm, where we use the (arbitrary) value (444MeV)(2) for the string tension. We estimate a continuum limit large-N value, m(rho) = (1.77 +/- 0.05)root sigma. We find 1/N-2 corrections to be small and we compare our results to predictions from AdS/QCD.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FIELD-THEORIES; FINITE-VOLUME; MASS; PION; lattice QCD; AdS-CFT correspondence; 1/N expansion |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Oct 2020 13:32 |
| Last Modified: | 26 Oct 2020 13:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30388 |
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