Study of the decay φ → π+π-π0 with the KLOE detector

被引：48

作者：

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

机构：

[1] Univ Bari, Dipartmento Fis, Bari, Italy

[2] Univ Bari, Sez INFN, Bari, Italy

[3] Ist Nazl Fis Nucl, Nazl Frascati Lab, I-00044 Frascati, Italy

[4] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany

[5] Univ Lecce, Dipartimento Fis, I-73100 Lecce, Italy

[6] Univ Lecce, Sez INFN, I-73100 Lecce, Italy

[7] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy

[8] Univ Naples Federico II, Sez INFN, Naples, Italy

[9] Univ Pisa, Dipartimento Fis, Pisa, Italy

[10] Univ Pisa, Sez INFN, Pisa, Italy

[11] Univ Roma La Sapienza, Dipartimento Energet, Rome, Italy

[12] Univ Roma La Sapienza, Dipartmento Fis, Rome, Italy

[13] Univ Roma La Sapienza, Sez INFN, Rome, Italy

[14] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy

[15] Univ Roma Tor Vergata, Sez INFN, I-00173 Rome, Italy

[16] Univ Roma Tre, Dipartmento Fis, Rome, Italy

[17] Univ Roma Tre, Dipartmento Fis, Rome, Italy

[18] Univ Roma Tre, Sez INFN, Rome, Italy

[19] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA

[20] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy

[21] Univ Trieste, Sez INFN, I-34127 Trieste, Italy

[22] Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA

[23] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[24] Inst Theoret & Expt Phys, Moscow, Russia

来源：

PHYSICS LETTERS B | 2003年 / 561卷 / 1-2期

关键词：

e(+)e(-) collisions; phi -> pi(+)pi(-)pi(0); rho meson masses and widths;

D O I：

10.1016/S0370-2693(03)00402-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a study of the reaction e(+)e(-) --> pi(+)pi(-)pi(0) at the phi peak, W = M(phi) = 1019.4 MeV, observed with the KLOE detector at DAPhiNE. The reaction is dominated by phi production and decay, e(+)e(-) --> phi --> pi(+)pi(-)pi(0). From a fit to the Dalitz plot density distribution we obtain the rho-meson parameters for its three charge states. We also find the relative amplitudes for phi --> rhopi and phi --> pi(+)pi(-)pi(0) and the cross section for e(+)e(-) --> omegapi(0) with omega --> pi(+)pi(-). (C) 2003 Published by Elsevier Science B.V.

引用

页码：55 / 60

页数：6

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