Low-lying pseudoscalar and vector mesons and their dynamics: How to describe radiative reactions with an odd number of pions
2014 (English)In: INPC 2013 - International Nuclear Physics Conference, Vol. 2 / [ed] Lunardi, S; Bizzeti, PG; Kabana, S; Bucci, C; Chiari, M; Dainese, A; DiNezza, P; Menegazzo, R; Nannini, A; Signorini, C; ValienteDobon, JJ, 2014, Vol. 66, 06023- p.Conference paper (Refereed)
In chiral perturbation theory, the leading-order contribution to reactions with pions in the sector of odd intrinsic parity is defined by the Wess-Zumino-Witten structure. This structure is supplemented by a simple vector-meson Lagrangian where the vector mesons are described by antisymmetric tensor fields. With the rho-omega-pion coupling as the only parameter in the sector of odd intrinsic parity, i.e. without additional contact terms, one can achieve a proper description of the single- and double-virtual pion transition form factor and the three-pion production in electron-positron collisions.
Place, publisher, year, edition, pages
2014. Vol. 66, 06023- p.
, EPJ Web of Conferences, ISSN 2100-014X ; 66
Astronomy, Astrophysics and Cosmology Physical Sciences
IdentifiersURN: urn:nbn:se:uu:diva-235862DOI: 10.1051/epjconf/20146606023ISI: 000342463600078ISBN: 978-2-7598-1176-2OAI: oai:DiVA.org:uu-235862DiVA: diva2:762641
International Nuclear Physics Conference (INPC), JUN 02-07, 2013, Firenze, ITALY