Dynamics of the π- p → π0π0n reaction for pπ- <750 MeV/c -: art. no. 102301

被引：12

作者：

Craig, K ^{[1
]}

Comfort, JR

Allgower, CE

Bekrenev, V

Berger, E

Briscoe, WJ

Clajus, M

Draper, B

Grosnick, D

Isenhower, D

Knecht, N

Koetke, D

Koulbardis, A

Kozlenko, N

Kruglov, S

Lolos, GJ

Lopatin, I

Manley, DM

Manweiler, R

Marusic, A

McDonald, S

Nefkens, BMK

Olmsted, J

Papandreou, Z

Peaslee, D

Phaisangittisakul, N

Prakhov, S

Price, JW

Pulver, M

Ramirez, AF

Sadler, ME

Shafi, A

Spinka, H

Stanislaus, S

Starostin, A

Supek, I

Staudenmaier, HM

Tippens, WB

机构：

[1] Arizona State Univ, Tempe, AZ 85287 USA

[2] Argonne Natl Lab, Argonne, IL 60439 USA

[3] Petersburg Nucl Phys Inst, Gatchina 188350, Leningrad Dist, Russia

[4] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[5] George Washington Univ, Washington, DC 20052 USA

[6] Abilene Christian Univ, Abilene, TX 79699 USA

[7] Valparaiso Univ, Valparaiso, IN 46383 USA

[8] Univ Regina, Regina, SK S4S 0A2, Canada

[9] Kent State Univ, Kent, OH 44242 USA

[10] Brookhaven Natl Lab, Upton, NY 11973 USA

[11] Univ Maryland, College Pk, MD 20742 USA

[12] Rudjer Boskovic Inst, Zagreb 10002, Croatia

[13] Univ Karlsruhe, D-76128 Karlsruhe, Germany

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.91.102301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Data are presented for the reaction pi(-) p --> pi(0) pi(0) n in the range from threshold to p(pi)- = 750 MeV/c. The systematics of the data and multipole analyses are examined for sensitivity to a f(0)(600) ("sigma") meson. A one-pion-exchange mechanism is found to be very weak, or absent. The reaction appears to become dominated by sequential pi(0) decays through the Delta(1232) resonance as the beam momentum increases, along with substantial interference effects from several competing mechanisms.

引用

页数：4

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Dynamics of the π- p → π0π0n reaction for pπ- &lt;750 MeV/c -: art. no. 102301

Dynamics of the π- p → π0π0n reaction for pπ- <750 MeV/c -: art. no. 102301