Dispersive analysis of ω → 3π and φ → 3π decays

被引：117

作者：

Niecknig, Franz ^{[1
]}

Kubis, Bastian

Schneider, Sebastian P.

机构：

[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2012年 / 72卷 / 05期

关键词：

LIGHT VECTOR; SCATTERING; EQUATIONS; AMPLITUDE; E(+)E(-); PHYSICS; CUSPS; ROY;

D O I：

10.1140/epjc/s10052-012-2014-1

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the three-pion decays of the lightest isoscalar vector mesons, omega and phi, in a dispersive framework that allows for a consistent description of final-state interactions between all three pions. Our results are solely dependent on the phenomenological input for the pion-pion P-wave scattering phase shift. We predict the Dalitz plot distributions for both decays and compare our findings to recent measurements of the phi -> 3 pi Dalitz plot by the KLOE and CMD-2 collaborations. Dalitz plot parameters for future precision measurements of omega -> 3 pi are predicted. We also calculate the pi pi P-wave inelasticity contribution from omega pi intermediate states.

引用

页码：1 / 24

页数：24

共 64 条

[1] RELATIVISTIC 3-PION DYNAMICS IN OMEGA CHANNEL [J].

AITCHISON, IJR ;

GOLDING, RJA .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1978, 4 (01) :43-66

[2] Study of φ→π+π-π0 with CMD-2 detector [J].

Akhmetshin, R. R. ;

Aulchenko, V. M. ;

Banzarov, V. Sh. ;

Barkov, L. M. ;

Bashtovoy, N. S. ;

Bondar, A. E. ;

Bondarev, D. V. ;

Bragin, A. V. ;

Eidelman, S. I. ;

Epifanov, D. A. ;

Fedotovich, G. V. ;

Gabyshev, N. I. ;

Gorbachev, D. A. ;

Grebeniuk, A. A. ;

Grigoriev, D. N. ;

Ignatov, F. V. ;

Karpov, S. V. ;

Kazanin, V. F. ;

Khazin, B. I. ;

Koop, I. A. ;

Krokovny, P. P. ;

Kuzmin, A. S. ;

Logashenko, I. B. ;

Lukin, P. A. ;

Lysenko, A. P. ;

Mikhailov, K. Yu. ;

Milstein, A. I. ;

Nesterenko, I. N. ;

Nikulin, M. A. ;

Okhapkin, V. S. ;

Otboev, A. V. ;

Perevedentsev, E. A. ;

Popov, A. S. ;

Redin, S. I. ;

Root, N. I. ;

Ruban, A. A. ;

Ryskulov, N. M. ;

Shatunov, Yu. M. ;

Shwartz, B. A. ;

Sibidanov, A. L. ;

Sidorov, V. A. ;

Skrinsky, A. N. ;

Smakhtin, V. P. ;

Snopkov, I. G. ;

Solodov, E. P. ;

Yudin, Yu. V. ;

Zaitsev, A. S. ;

Zverev, S. G. .

PHYSICS LETTERS B, 2006, 642 (03) :203-209

[3] Study of the process e+e- → ωπ0 → π0π0γ in c.m. energy range 920-1380 MeV at CMD-2 [J].

Akhmetshin, RR ;

Aulchenko, VM ;

Banzarov, VS ;

Baratt, A ;

Barkov, LM ;

Baru, SE ;

Bashtovoy, NS ;

Bondar, AE ;

Bondarev, DV ;

Bragin, AV ;

Eidelman, SI ;

Epifanov, DA ;

Fedotovitch, GV ;

Gabyshev, NI ;

Gorbachev, DA ;

Grebeniuk, AA ;

Grigoriev, DN ;

Hughes, VW ;

Ignatov, FV ;

Karpov, SV ;

Kazanin, VF ;

Khazin, BI ;

Koop, IA ;

Krokovny, PP ;

Kuzmin, AS ;

Logashenko, IB ;

Lukin, PA ;

Lysenko, AP ;

Mikhailov, KY ;

Milstein, AI ;

Nesterenko, IN ;

Okhapkin, VS ;

Otboev, AV ;

Pak, AV ;

Perevedentsev, EA ;

Polunin, AA ;

Popov, AS ;

Redin, SI ;

Roberts, BL ;

Root, NI ;

Ruban, AA ;

Ryskulov, NM ;

Shamov, AG ;

Shatunov, YM ;

Shwartz, BA ;

Sibidanov, AL ;

Sidorov, VA ;

Skrinsky, AN ;

Snopkov, IG ;

Solodov, EP .

PHYSICS LETTERS B, 2003, 562 (3-4) :173-181

[4] Erratum to:: "Study of the decay φ→π+π-π0 with the KLOE detector" (vol 561, pg 55, 2003) [J].

Aloisio, A ;

Ambrosino, F ;

Antonelli, A ;

Antonelli, M ;

Bacci, C ;

Bellini, F ;

Bencivenni, G ;

Bertolucci, S ;

Bini, C ;

Bloise, C ;

Bocci, V ;

Bossi, F ;

Branchini, P ;

Bulychjov, SA ;

Cabibbo, G ;

Caloi, R ;

Campana, P ;

Capon, G ;

Capussela, T ;

Carboni, G ;

Casarsa, M ;

Casavola, V ;

Cataldi, G ;

Ceradini, F ;

Cervelli, F ;

Cevenini, F ;

Chiefari, G ;

Ciambrone, P ;

Conetti, S ;

De Lucia, E ;

De Robertis, G ;

De Simone, P ;

De Zorzi, G ;

Dell'Agnello, S ;

Denig, A ;

Di Domenico, A ;

Di Donato, C ;

Di Falco, S ;

Di Micco, B ;

Doria, A ;

Dreucci, M ;

Erriquez, O ;

Farilla, A ;

Felici, G ;

Ferrari, A ;

Ferrer, ML ;

Finocchiaro, G ;

Forti, C ;

Franceschi, A ;

Franzini, P .

PHYSICS LETTERS B, 2005, 609 (3-4) :449-450

[5] Study of the decay φ → π+π-π0 with the KLOE detector [J].