INCLUSIVE MEASUREMENT OF (P)OVER-BAR ANNIHILATION AT REST IN GASEOUS-HYDROGEN TO FINAL-STATES CONTAINING RHO AND F(2)
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Adler, R.
Alhalel, T.
Angelopoulos, A.
Apostolakis, A.
Aslanides, E.
Backenstoss, G.
Bee, C. P.
Behnke, O.
Bennet, J.
Bertin, V.
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peer reviewed
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Zeitschrift Fur Physik C-Particles and Fields
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Antiproton annihilation at rest in gaseous hydrogen (16 bar pressure) to the final states rho(770)X and f(2)(1270)X, where X stands for one or more neutral mesons, has been studied at LEAR using the CPLEAR detector. Relative branching ratios are given for X = pi(0), 2 pi(0), 3 pi(0), w in the rho case,and for X = pi(0), eta in the f(2) case. The annihilation channel (p) over bar p --> rho 3 pi(0) has not been measured before. The fraction of P-wave annihilation is deduced from the ratio f(2) pi(0)/rho pi(0) to be 0.38 +/- 0.07, in good agreement with the result previously obtained by CPLEAR from the ratio K+K-/pi(+)pi(-).
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<Go to ISI>://WOS:A1995QC09600003
http://www.springerlink.com/content/g7027l7567l20p23/fulltext.pdf
http://www.springerlink.com/content/g7027l7567l20p23/fulltext.pdf
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Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών