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Meson production on complex nuclei by pi^-- with the Crystal Ball detector (CROSBI ID 500589)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Starostin, A. ; Nefkens, B.M.K. ; Staudenmaier, H.M. ; Clajus, M. ; Marušić, Aljoša ; McDonald, S. ; Phaisangittisakul, N. ; Prakhov, S. ; Price, J.W. ; Tippens, W.B. et al. Meson production on complex nuclei by pi^-- with the Crystal Ball detector // Proceedings of the International Workshop on Chiral Fluctuationa in Hadronic Matter. Orsay, 2001. str. 33-42-x

Podaci o odgovornosti

Starostin, A. ; Nefkens, B.M.K. ; Staudenmaier, H.M. ; Clajus, M. ; Marušić, Aljoša ; McDonald, S. ; Phaisangittisakul, N. ; Prakhov, S. ; Price, J.W. ; Tippens, W.B. ; Isenhower, D. ; Sadler, M. ; Allgower, C. ; Spinka, H. ; Comfort, J. ; Craig, K. ; Ramirez, T. ; Kycia, T. ; Peterson, J. ; Briscoe, W. ; Shafi, A. ; Manley, D.M. ; Olmsted, J. ; Peaslee, D. ; Bekrenev, V. ; Koulbardis, A. ; Kozlenko, N. ; Kruglov, S. ; Lopatin, I. ; Huber, G.M. ; Lolos, G.H. ; Šlaus, Ivo ; Supek, Ivan ; Grosnick, D. ; Koetke, D. ; Manweiller R. ; Stanislaus, S.

engleski

Meson production on complex nuclei by pi^-- with the Crystal Ball detector

We report on preliminary results for the production of neutral mesons by 750 MeV/c pi^- on complex nuclear targets (C, Al, Cu) and hydrogen. Our simultaneous measurement of pi^0, eta and 2 pi^0 final states allows an investigation of the nuclear final state interaction effects. The data show thatbnuclear absorption is mainly responsible for an observed change in the shape of the 2 pi^0 invariant mass spectra. Our preliminary results for the sigma → gamma gamma ranching ratio is BR (sigma → gamma gamma) ≤ 3.6 x 10^-3 x Fi at 90% C.L. on a carbon target, where Fi is the fraction of 2 pi^0 produced via the σ intermediate state.

meson production on complex nuclei by pi^-

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Podaci o prilogu

33-42-x.

2001.

objavljeno

Podaci o matičnoj publikaciji

Proceedings of the International Workshop on Chiral Fluctuationa in Hadronic Matter

Orsay:

Podaci o skupu

International Workshop on Chiral Fluctuationa in Hadronic Matter

pozvano predavanje

26.09.2001-28.09.2001

Orsay, Francuska

Povezanost rada

Fizika