EXPERIMENTAL ESTIMATION OF THE LIFETIME OF ATOMS FORMED BY PI(+) AND PI(-) MESONS

被引：40

作者：

AFANASYEV, LG ^{[1
]}

CHVYROV, AS ^{[1
]}

GORCHAKOV, OE ^{[1
]}

KARPUKHIN, VV ^{[1
]}

KOLOMYICHENKO, AV ^{[1
]}

KOMAROV, VI ^{[1
]}

KRUGLOV, VV ^{[1
]}

KUPTSOV, AV ^{[1
]}

NEMENOV, LL ^{[1
]}

NIKITIN, MV ^{[1
]}

PUSTYLNIK, ZP ^{[1
]}

KULIKOV, AV ^{[1
]}

TRUSOV, SV ^{[1
]}

YAZKOV, VV ^{[1
]}

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV,DUBNA BRANCH,INST NUCL PHYS,DUBNA 141980,RUSSIA

来源：

PHYSICS LETTERS B | 1994年 / 338卷 / 04期

关键词：

D O I：

10.1016/0370-2693(94)90803-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Based on observation [L.G. Afanasyev et al., Phys. Lett. B 308 (1993) 200] of 272 +/- 49 atoms formed by pi+ and pi- an estimation of the atom lifetime in the ground (1S) state is obtained: tau1 = (2.9(-2.1)+infinity) . 10(-15) s or tau1 > 0.6 . 10(-15) s at 90% confidence level. Atoms were produced in inclusive p Ta interactions at 70 GeV.

引用

页码：478 / 482

页数：5

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