Search for a bound trineutron with the 3He(π-,π+)nnn reaction

被引：12
|
作者：
Gräter, J
Amaudruz, PA
Bilger, R
Camerini, P
Clark, J
Clement, H
Friedman, E
Felawka, L
Filippov, SN
Friagiacomo, E
Gavrilov, YK
Gibson, E
Grion, N
Hofman, GJ
Jamieson, B
Karavicheva, TL
Kermani, M
Mathie, EL
Meier, R
Ottewell, D
Pätzold, J
Patarakin, O
Raywood, K
Rui, R
Schepkin, M
Sevior, ME
Smith, GR
Staudenmaier, H
Tacik, R
Tagliente, G
Wagner, GJ
Yeomans, M
机构：
[1] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany
[2] TRIUMF, Vancouver, BC V6T 2A3, Canada
[3] Univ Trieste, I-34127 Trieste, Italy
[4] Ist Nazl Fis Nucl, I-34127 Trieste, Italy
[5] Univ Melbourne, Sch Phys, Parkville, Vic 3052, Australia
[6] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[7] Inst Nucl Res, Moscow 117312, Russia
[8] Calif State Univ Sacramento, Sacramento, CA 95819 USA
[9] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 2A6, Canada
[10] Univ Regina, Regina, SK S4S 0A2, Canada
[11] RRC Kurchatov Inst, Moscow 123182, Russia
[12] ITEP Moscow, Moscow 117218, Russia
[13] Univ Karlsruhe, D-76128 Karlsruhe, Germany
来源：
EUROPEAN PHYSICAL JOURNAL A | 1999年 / 4卷 / 01期
关键词：
D O I：
10.1007/s100500050196
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：
A search for the production of a bound trineutron state has been performed using the reaction He-3(pi(-),pi(+))nnn at incident pion energies of 65, 75, and 120 MeV. No evidence for the existence of the (3)n was found, and an upper limit for the production cross section of approximately 30 nb/sr (2 sigma confidence level) was obtained.
引用
收藏
页码：5 / 7
页数：3
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