Study of Bose-Einstein correlations in e/sup +/e/sup -/ annihilation at 29 GeV

Journal Article · Fri Mar 01 00:00:00 EST 1985 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.31.996· OSTI ID:5922674

Aihara, H; Alston-Garnjost, M; Bakken, J A; Barbaro-Galtieri, A; Barnes, A V; Barnett, B A; Bengtsson, H; Blumenfeld, B J; Bross, A D; Buchanan, C D; Chamberlain, O; Chien, C; Clark, A R; Cordier, A; Dahl, O I; Day, C T; Derby, K A; Eberhard, P H; Fancher, D L; Fujii, H ; Fujii, T; Gabioud, B; Gary, J W; Gorn, W; Hadley, N J; Hauptman, J M; Hofmann, W; Huth, J E; Hylen, J; Kamae, T; Kaye, H S; Kenney, R W; Kerth, L T; Koda, R I; Kofler, R R; Kwong, K K; Layter, J G; Lindsey, C S; Loken, S C; Lu, X Q; Lynch, G R; Madansky, L; Madaras, R J; Maruyama, K; Marx, J N; Matthews, J A.J.; Melnikoff, S O; Moses, W; Nemethy, P; Nygren, D R; Oddone, P J; Park, D A; Pevsner, A; Pripstein, M; Robrish, P R; Ronan, M T; Ross, R R; Rouse, F R; Sauerwein, R R; Shapiro, G; Shapiro, M D; Shen, B C; Slater, W E; Stevenson, M L; Stork, D H; Ticho, H K; Toge, N; van Daalen Wetters, R F; VanDalen, G J; van Tyen, R; Wang, E M; Wayne, M R; We,

Bose-Einstein correlations between like-sign pions have been investigated in e/sup +/e/sup -/ annihilation at ..sqrt..s = 29 GeV using the Time Projection Chamber detector at the SLAC e/sup +/e/sup -/ storage ring PEP. The production rate of like-sign pion pairs with small relative momentum is found to be increased by more than 50% over the rate expected for uncorrelated production of pions. From the correlation length, a typical source radius of 0.65 fm is derived. Data are consistent with a spherical shape of the pion source. No dependence of radius or correlation strength on the event multiplicity is observed.

• Research Organization: Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 University of California, Los Angeles, California 90024 University of California, Riverside, California 92521 Johns Hopkins University,
• OSTI ID: 5922674
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 31:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BOSE-EINSTEIN STATISTICS
BOSONS
CORRELATION FUNCTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FUNCTIONS
GEV RANGE
GEV RANGE 10-100
HADRONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MESONS
MULTIPLICITY
PAIR PRODUCTION
PARTICLE INTERACTIONS
PEP STORAGE RINGS
PIONS
PSEUDOSCALAR MESONS
SPACE-TIME
STORAGE RINGS
WAVE FUNCTIONS