NAGIOS: RODERIC FUNCIONANDO

phi ->pi(+)pi(-) decay within a chiral unitary approach

Repositori DSpace/Manakin

Valencià Castellano

Inici
Investigació
e-prints
22 - Física
Visualitza element

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

phi ->pi(+)pi(-) decay within a chiral unitary approach

Mostra el registre complet de l'element

Visualització (365.2Kb)

Oller Berber, José Antonio; Oset Báguena, Eulogio; Peláez Sagredo, José Ramón

Aquest document és un/a article, creat/da en: 2000

Starting from the Chiral Perturbation Theory Lagrangian, but keeping different masses for the charged and neutral mesons, and using a previously developed non-perturbative unitary scheme that generates the lightest meson-meson resonances, we construct K Kbar to K Kbar and K Kbar to pi+ pi- in the vector channel. This allows us to obtain the kaon-loop contribution to the phi-rho mixing and study the phi to pi+pi- decay. The dominant contribution to this decay comes from the phi to gamma to pi+pi- process. However, there can be large interferences with the subdominant contributions coming from phi-rho and phi-omega mixing, or of these two contributions among themselves. As a consequence, a reliable measurement of phi to pi+pi- decay could be used to differentiate between some phi-omega mixing scenarios proposed in the literature.

Veure al catàleg Trobes