Measurement of the G asymmetry for the γp → Nπ channels in the Δ(1232) resonance region

被引：22
|
作者：
Ahrens, J
Altieri, S
Annand, JRM
Arends, HJ
Beck, R
Braghieri, A
d'Hose, N
Dutz, H
Goertz, S
Grabmayr, P
Hasegawa, S
Heid, E
Holvoet, H
Van Hoorebeke, L
Horikawa, N
Iwata, T
Jahn, O
Jennewein, P
Kondratiev, R
Krimmer, J
Lang, M
Lannoy, B
Livingston, K
McGeorge, JC
Meyer, W
Panzeri, A
Pedroni, P
Pinelli, T
Preobrajenski, I
Reicherz, G
Rosner, G
Rost, M
Rostomyan, T
Ryckbosch, D
Schumacher, M
Seitz, B
Tamas, G
Thomas, A
de Vyver, RV
Walcher, T
Zapadtka, F
机构：
[1] Ruhr Univ Bochum, Inst Expt Phys, D-44801 Bochum, Germany
[2] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
[3] Univ Ghent, B-9000 Ghent, Belgium
[4] CEA Saclay, DSM, DAPNIA, SPhN, F-91191 Gif Sur Yvette, France
[5] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
[6] Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany
[7] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany
[8] Acad Sci, INR, Moscow, Russia
[9] Nagoya Univ, Dept Phys, Chikusa Ku, Nagoya, Aichi 464, Japan
[10] Nagoya Univ, CIRSE, Chikusa Ku, Nagoya, Aichi, Japan
[11] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy
[12] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy
[13] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany
来源：
EUROPEAN PHYSICAL JOURNAL A | 2005年 / 26卷 / 01期
关键词：
D O I：
10.1140/epja/i2005-10158-3
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：
The G asymmetry of the gamma p -> N pi reaction has been measured for the first time for E gamma = 340 +/- 14 MeV. This observable, for which very scarce published data exist, plays an important role to disentangle the contributions of the various nucleon resonances. The experiment, performed at the Mainz microtron MAIM, used a 4 pi-detector system, a linearly polarized, tagged photon beam, and a longitudinally polarized proton target.
引用
收藏
页码：135 / 140
页数：6
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