Open AccessThe PIBETA spectrometer for studying rare and forbidden decays of muons and pions
Author(s) -
V. A. Baranov,
V. A. Kalinnikov,
V.V. Karpukhin,
N. V. Khomutov,
A. S. Korenchenko,
S.M. Korenchenko,
N. P. Kravchuk,
N. A. Kuchinskii,
D.A. Mzhaviya,
A. M. Rozhdestvenskii,
V. V. Sidorkin,
Z. Tsamalaidze,
T. Sakhelashvili,
E. Frlež,
D. Počanić,
W. Li,
R. Minehart,
L. C. Smith,
W. Stephens,
K. O. H. Ziock,
W. Bertl,
R. Horisberger,
S. Ritt,
R. Schnyder,
H. P. Wirtz,
B. G. Ritchie,
I. Supek,
T. Kozłowski
Publication year - 2005
Publication title -
instruments and experimental techniques
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 32
eISSN - 1608-3180
pISSN - 0020-4412
DOI - 10.1007/s10786-005-0030-1
Subject(s) - pion , spectrometer , muon , physics , nuclear physics , particle physics , optics
The construction and characteristics of the PIBETA spectrometer are described. This spectrometer is designed to implement a program of precise measurement of pion β decay π+ → π0 + e+ + νe at the Paul Scherrer Institute (Switzerland). A spherical calorimeter, consisting of 240 crystals of pure CsI scintillator and embracing a solid angle of ∼3π, is the main detector of the setup. In addition, the spectrometer is composed of an active collimator (which also acts as a beam degrader), a segmented active plastic target, two multiwire cylindrical proportional chambers, a 20-element cylindrical plastic hodoscope, and veto counters of cosmic muons.
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