Search for nucleon decay with final states l(+) eta(0), (nu)over-bar eta(0), and (nu)over-bar pi(+,0) using Soudan 2 - art. no. 092003

Citation
D. Wall et al., Search for nucleon decay with final states l(+) eta(0), (nu)over-bar eta(0), and (nu)over-bar pi(+,0) using Soudan 2 - art. no. 092003, PHYS REV D, 6209(9), 2000, pp. 2003
Citations number
46
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6209
Issue
9
Year of publication
2000
Database
ISI
SICI code
0556-2821(20001101)6209:9<2003:SFNDWF>2.0.ZU;2-4
Abstract
We have searched for nucleon decay into five two-body final states using a 4.4 kiloton-year fiducial exposure of the Soudan 2 iron tracking calorimete r. For proton decay into the fully visible final states mu (+) eta (0) and e(+) eta (0), we observe zero and one event, respectively, that satisfy our search criteria for nucleon decay. The lifetime lower limits (tau /B) thus implied are 89 x 10(30) years and 81 x 10(30) years at 90% confidence leve l. For neutron decay into <(<nu>)over bar>eta0, we obtain the lifetime lowe r limit 71 x 10(30) years. Limits are also reported for neutron decay into <(<nu>)over bar>pi (0), and for proton decay into <(<nu>)over bar>pi (+).