SEARCH FOR PROTON DECAY INTO E+ +PI-0 IN THE IMB-3 DETECTOR

被引：51

作者：

BECKERSZENDY, R

BRATTON, CB

CADY, DR

CASPER, D

CLAUS, R

CROUCH, M

DYE, ST

GAJEWSKI, W

GOLDHABER, M

HAINES, TJ

HALVERSON, PG

JONES, TW

KIELCZEWSKA, D

KROPP, WR

LEARNED, JG

LOSECCO, JM

MCGREW, C

MATSUNO, S

MATTHEWS, J

MUDAN, MS

PRICE, L

REINES, F

SCHULTZ, J

SINCLAIR, D

SOBEL, HW

STONE, JL

SULAK, LR

SVOBODA, R

THORNTON, G

VANDERVELDE, JC

机构：

[1] UNIV CALIF IRVINE,IRVINE,CA 92717

[2] UNIV MICHIGAN,ANN ARBOR,MI 48109

[3] BROOKHAVEN NATL LAB,UPTON,NY 11973

[4] BOSTON UNIV,BOSTON,MA 02215

[5] UNIV LONDON UNIV COLL,LONDON WC1E 6BT,ENGLAND

[6] UNIV WARSAW,PL-00325 WARSAW,POLAND

[7] CLEVELAND STATE UNIV,CLEVELAND,OH 44115

[8] UNIV NOTRE DAME,NOTRE DAME,IN 46556

[9] CASE WESTERN RESERVE UNIV,CLEVELAND,OH 44106

[10] LOUISIANA STATE UNIV,BATON ROUGE,LA 70803

[11] UNIV MARYLAND,COLLEGE PK,MD 20742

来源：

PHYSICAL REVIEW D | 1990年 / 42卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.42.2974

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the results of a search for proton decay into e++0 in the 6800-ton IMB-3 water aerenkov detector. During 376 days of live time no events consistent with this decay were found in the 3300 ton fiducial volume. From this observation we derive a limit on the partial lifetime to be B>2.4×1032 yr (90% C.L.), which, combined with our previous result of 3.1×1032 yr, provides a limit of 5.5×1032 yr. The general features of the observed contained events are compatible with those expected from atmospheric neutrino interactions. © 1990 The American Physical Society.

引用

页码：2974 / 2976

页数：3

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