Measurement of π0 photoproduction on the proton from 550 to 1500 MeV at GRAAL

被引：99

作者：

Bartalini, O

Bellini, V

Bocquet, JP

Capogni, M

Casano, L

Castoldi, M

Calvat, P

D'Angelo, A

Di Salvo, R

Fantini, A

Gaulard, C

Gervino, G

Ghio, F

Girolami, B

Giusa, A

Kouznetsov, V

Lapik, A

Sandri, PL

Lleres, A

Moricciani, D

Mushkarenkov, AN

Nedorezov, V

Nicoletti, L

Perrin, C

Rebreyend, D

Renard, F

Rudnev, N

Russew, T

Russo, G

Schaerf, C

Sperduto, ML

Sutera, MC

Turinge, A

机构：

[1] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

[2] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy

[3] Univ Turin, Dipartimento Fis Sperimentale, I-00125 Turin, Italy

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

[5] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95123 Catania, Italy

[6] Ist Nazl Fis Nucl, Sez Catania, I-95123 Catania, Italy

[7] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy

[8] Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy

[9] Ist Nazl Fis Nucl, Sez Roma 2, I-00185 Rome, Italy

[10] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

[11] Ist Super Sanita, I-00161 Rome, Italy

[12] IN2P3, Lab Phys Subatom & Cosmol, F-38026 Grenoble, France

[13] Inst Nucl Res, Moscow 117312, Russia

来源：

EUROPEAN PHYSICAL JOURNAL A | 2005年 / 26卷 / 03期

关键词：

D O I：

10.1140/epja/i2005-10191-2

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Neutral pion photoproduction has been measured from 550 to 1500 MeV with the GRAAL facility, located at the ESRF in Grenoble. Differential cross-section and beam asymmetry have been measured over a wide angular range. These high-precision data improve significantly the database for the beam asymmetry in the second and third resonance regions covering for the first time the energy domain 1100-1500 MeV. New partial-wave analyses including these data are presented for which the beam asymmetry brings crucial constraints.

引用

页码：399 / 419

页数：21

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