STUDY OF THE ETA-PI- SYSTEM IN THE PI-P REACTION AT 6.3 GEV/C

被引：90

作者：

AOYAGI, H

FUKUI, S

HASEGAWA, T

HAYASHI, N

HORIKAWA, N

IIZUKA, J

INABA, S

ISHIMOTO, S

ISHIZAKI, Y

IWATA, T

KANATANI, E

KAWAI, H

KINASHI, T

KISHI, A

KOBAYASHI, K

KOBAYASHI, Y

MATSUDA, K

MATSUDA, T

MORI, K

NAKAGAWA, T

NAKAMURA, S

NAKAMURA, T

NAKANISHI, T

NARITA, A

OHMI, K

OHMORI, C

SAMOTO, T

SHIMIZU, H

TAJIMA, Y

TAKAMATSU, K

TAKASAKI, M

TSUBAKI, T

TSUCHIYA, K

TSURU, T

YAMAUCHI, I

YASU, Y

YOSHIDA, HY

WAKAI, A

机构：

[1] SUGIYAMA JOGAKUEN UNIV, AICHI 47001, JAPAN

[2] MIYAZAKI UNIV, MIYAZAKI 88921, JAPAN

[3] KEK, NATL LAB HIGH ENERGY PHYS, IBARAKI 305, JAPAN

[4] CHIBA UNIV, INAGE KU, CHIBA 263, JAPAN

[5] UNIV TOKYO, INST NUCL STUDY, TANASHI, TOKYO 188, JAPAN

[6] HAMAMATSU UNIV SCH MED, HAMAMATSU, SHIZUOKA 43131, JAPAN

[7] NAGOYA UNIV, COLL MED TECHNOL, HIGASHI KU, NAGOYA 461, JAPAN

[8] YAMAGATA UNIV, YAMAGATA 990, JAPAN

[9] TOHOKU UNIV, AOBA KU, SENDAI, MIYAGI 980, JAPAN

[10] SAGA UNIV, SAGA 840, JAPAN

[11] TOKYO METROPOLITAN TECH COLL, SHINAGAWA KU, TOKYO 140, JAPAN

[12] TOKYO INST TECHNOL, MEGURO KU, TOKYO 152, JAPAN

来源：

PHYSICS LETTERS B | 1993年 / 314卷 / 02期

关键词：

D O I：

10.1016/0370-2693(93)90456-R

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Data of the etapi- system were obtained in the reaction pi-p-->etapi-p at 6.3 GeV/c beam momentum. About 17 k events of etapi- were collected in the mass range 0.8 less-than-or-equal-to M(etapi-) less-than-or-equal-to 1.8 GeV/c2 and in the range of the momentum transfer squared 0.075 less-than-or-equal-to \t'\ less-than-or-equal-to 0.60 (GeV/c)2. A large forward-backward asymmetry was observed around 1.3 GeV/C2 in the Gottfried-Jackson frame of the etapi- system. A partial wave analysis of the data was performed. A peak of the D+ wave attributed to a2 (1320) is clearly seen. An enhancement is observed around 1.3 GeV/C2 in the P+ wave.

引用

页码：246 / 254

页数：9

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