Measurement of the branching ratio for the decay K± → π±π0π0 with the KLOE detector

被引：12

作者：

Aloisio, A ^{[1
]}

Ambrosino, F

Antonelli, A

Antonelli, M

Bacci, C

Barva, M

Bencivenni, G

Bertolucci, S

Bini, C

Bloise, C

Bocci, V

Bossi, F

Branchini, P

Bulychjov, SA

Caloi, R

Campana, P

Capon, G

Capussela, T

Carboni, G

Ceradini, F

Cervelli, F

Cevenini, F

Chiefari, G

Ciambrone, P

Conetti, S

De Lucia, E

De Santis, A

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

Franzini, P

Gatti, C

Gauzzi, P

Giovannella, S

Gorini, E

Graziani, E

机构：

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

[2] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy

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

[4] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[5] Acad Sinica, Inst High Energy Phys, Beijing, Peoples R China

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

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

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

[9] Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy

[10] Inst Theoret & Expt Phys, Moscow 117259, Russia

[11] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

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

[13] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy

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

[15] Univ Naples Federico II, Dept Fis, Naples, Italy

[16] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy

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

[18] Univ Roma Tre, Dipartimento Fis, Rome, Italy

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

[20] Univ Virginia, Dept Phys, Charlottesville, VA 22903 USA

来源：

PHYSICS LETTERS B | 2004年 / 597卷 / 02期

关键词：

Charged kaons decays; e[!sup]+[!/sup]e[!sup]-[!/sup] collisions;

D O I：

10.1016/j.physletb.2004.07.012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have measured the absolute branching ratio BR(K+/- --> pi(+/-)pi(0)pi(0)) with the KLOE detector at the DAPhiNE e(+)e(-) collider. We collected similar to 3.3 x 10(7) tagged charged kaons, from the reaction e(+)e(-) --> phi --> K+K-. We find BR(K+/- --> pi(+/-)pi(0)pi(0)) = (1.763 +/- 0.013(stat) +/- 0.022(syst)) x 10(-2). (C) 2004 Elsevier B.V. All fights reserved.

引用

页码：139 / 144

页数：6