Naslov
DCC and Anomalous Production of Pions

Autori
Mikuta-Martinis, Vesna

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Skup
Triangle Meeting on Particle Physics

Mjesto i datum
Beč, Austrija, 26.11.1999. - 27.11.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
DCC; anomalous production; pion

Sažetak
The leading-particle effect and the factorization property of the scattering amplitude in the impact parameter space are used to study semiclassical production of pions in the central region. The mechanism is related to the isospin-uniform solution of the nonlinear $ \sigma $-model coupled to quark degrees of freedom. The multipion exchange potential between two quarks is derived. It is shown thatthe soft chiral pion bremsstralung also leads to anomalously large fluctuations in the ratio of neutral to charged pions. We show that only direct production ofpions in the form of an isoscalar coherent pulse without isovector pairs can lead to large neutral-charged fluctuations.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA