TY - GEN
T1 - Sigma-meson and confinement singularity
AU - Anisovich, V. V.
AU - Nikonov, V. A.
AU - Vulfs, T. O.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - We investigate a hypothesis according to which the sigma-meson is a remnant of the confinement singularity in the white channel.1 Introducing the confinement singularity 1/s2 into the ππ-interaction block, we observe a splitting of the white component of the confinement singularity (1/s2) into two poles which are diving on the second sheet of the complex-s plane. The poles correspond to states which are mixtures of gluonic, flavour-singlet qq̄, and ππ components. The low-lying pole is located at the complex-M region (690 ± 160) - i(400 ± 150) MeV, the second one goes in the region of large masses: (ReM ≳ 1400, -ImM ≳ 500) MeV.
AB - We investigate a hypothesis according to which the sigma-meson is a remnant of the confinement singularity in the white channel.1 Introducing the confinement singularity 1/s2 into the ππ-interaction block, we observe a splitting of the white component of the confinement singularity (1/s2) into two poles which are diving on the second sheet of the complex-s plane. The poles correspond to states which are mixtures of gluonic, flavour-singlet qq̄, and ππ components. The low-lying pole is located at the complex-M region (690 ± 160) - i(400 ± 150) MeV, the second one goes in the region of large masses: (ReM ≳ 1400, -ImM ≳ 500) MeV.
UR - http://www.scopus.com/inward/record.url?scp=84885912515&partnerID=8YFLogxK
U2 - 10.1142/9789814350198_0009
DO - 10.1142/9789814350198_0009
M3 - Conference contribution
AN - SCOPUS:84885912515
SN - 9814350184
SN - 9789814350181
T3 - GRIBOV-80 Memorial Volume: Quantum Chromodynamics and Beyond - Proceedings of the Memorial Workshop Devoted to the 80th Birthday of V N Gribov
SP - 71
EP - 81
BT - GRIBOV-80 Memorial Volume
PB - World Scientific Publishing Co. Pte Ltd
T2 - Memorial Workshop Devoted to the 80th Birthday of V N Gribov on Quantum Chromodynamics and Beyond
Y2 - 26 May 2010 through 28 May 2010
ER -