Width of the confining string in Yang-Mills theory.
We investigate the transverse fluctuations of the confining string connecting two static quarks in (2+1)D SU(2) Yang-Mills theory using Monte Carlo calculations. The exponentially suppressed signal is extracted from the large noise by a very efficient multilevel algorithm. The resulting width of the string increases logarithmically with the distance between the static quark charges. Corrections at intermediate distances due to universal higher-order terms in the effective string action are calculated analytically. They accurately fit the numerical data.
Gliozzi
F
F
Dipartimento di Fisica Teorica, Università di Torino, and INFN, Sezione di Torino, via P. Giuria 1, 10125 Torino, Italy.
Pepe
M
M
Wiese
U-J
UJ