TOTAL CROSS-SECTION FOR THE GAMMA-D-]PI-PP REACTION BETWEEN 380 AND 840 MEV

被引：18

作者：

ASAI, M

ENDO, I

HARADA, M

KASAI, S

NIKI, K

SUMI, Y

KATO, S

MARUYAMA, K

MURATA, Y

MUTO, M

YOSHIDA, K

IWATANI, K

HASAI, H

ITO, H

MAKI, T

RANGACHARYULU, C

SHIMIZU, H

WADA, Y

机构：

[1] HIROSHIMA UNIV, DEPT PHYS, HIROSHIMA 730, JAPAN

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

[3] HIROSHIMA UNIV, DEPT APPL PHYS & CHEM, HIGASHI KU, HIROSHIMA 724, JAPAN

[4] SAGA UNIV, DEPT PHYS, SAGA 840, JAPAN

[5] UNIV OCCUPAT & ENVIRONM HLTH, KITAKYUSHU, FUKUOKA 807, JAPAN

[6] UNIV SASKATCHEWAN, DEPT PHYS, SASKATOON S7N 0W0, SASKATCHEWAN, CANADA

[7] TOKYO INST TECHNOL, DEPT PHYS, TOKYO 152, JAPAN

[8] MEIJI COLL PHARM, TOKYO 154, JAPAN

来源：

PHYSICAL REVIEW C | 1990年 / 42卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.42.837

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 total cross section for the d-pp reaction has been measured for incident photon energies from 380 to 840 MeV in steps of 10 MeV, with the best energy resolution attained so far. A large-acceptance detector was used to observe the reaction products. Overall uncertainties in the deduced cross sections are less than 9% (4% statistical and 8% systematic). The results are in excellent agreement with previous bubble chamber measurements and do not show any statistically significant structure which can be interpreted as evidence for the formation of dibaryon resonances. An upper limit at 95% confidence level of peak<230 b MeV is obtained for a resonance in the vicinity of photon energy 700 MeV (mass2490 MeV). © 1990 The American Physical Society.

引用

页码：837 / 845

页数：9

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