2-BODY NEUTRAL FINAL-STATES PRODUCED IN ANTIPROTON-PROTON ANNIHILATIONS AT HAN-OR-EQUAL-TO-ROOT-S-LESS-THAN-OR-EQUAL-TO-3.686 GEV

Authors
ARMSTRONG TA BETTONI D BHARADWAJ V BIINO C BLANFORD G BORREANI G BROEMMELSIEK D BUZZO A CALABRESE R CECCUCCI A CESTER R CHURCH M DALPIAZ P DALPIAZ PF DIMITROYANNIS D FAST J GIANOLI A GINSBURG CM GOLLWITZER K GOVI G HAHN A HASAN M HSUEH S LEWIS R LUPPI E MACRI M MAJEWSKA AM MANDELKERN M MARCHETTO F MARINELLI M MARQUES J MARSH W MARTINI M MASUZAWA M MENICHETTI E MIGLIORI A MUSSA R PALESTINI S PALLAVICINI M PASSAGGIO S PASTRONE N PATRIGNANI C PEOPLES J PETRUCCI F PIA MG PORDES S RAPIDIS P RAY R REID J RINAUDO G ROCCUZZO B ROSEN J SANTRONI A SARMIENTO M SAVRIE M SCHULTZ J SETH KK SMITH A SMITH GA SOZZI M TROKENHEIM S VANDRUNEN E WEBER MF WERKEMA S ZHANG Y ZHAO J ZIOULAS G
Citation
Ta. Armstrong et al., 2-BODY NEUTRAL FINAL-STATES PRODUCED IN ANTIPROTON-PROTON ANNIHILATIONS AT HAN-OR-EQUAL-TO-ROOT-S-LESS-THAN-OR-EQUAL-TO-3.686 GEV, Physical review. D. Particles and fields, 56(5), 1997, pp. 2509-2531
Citations number
38
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
56
Issue
5
Year of publication
1997
Pages
2509 - 2531
Database
ISI
SICI code
0556-2821(1997)56:5<2509:2NFPIA>2.0.ZU;2-Q
Abstract
We have performed an experiment in the Antiproton Accumulator at Fermi lab to study two-body neutral final states formed in <(pp)over bar> an nihilations. Differential cross sections are determined in the center- of-mass energy range 2.911< root s<3.686 GeV for the final stares pi(0 ) pi(0), eta pi(0), eta eta, pi(0) gamma, and gamma gamma. The energy dependence of differential cross sections at 90 degrees in the center of mass is studied to test the predictions of phenomenological QCD sca ling hypotheses which predict power-law dependence.