Interference Study of the χc0(13P0) in the Reaction p̄p → π0π0

M. Andreotti, S. Bagnasco, W. Baldini, D. Bettoni, G. Borreani, A. Buzzo, R. Calabrese, R. Cester, G. Cibinetto, P. Dalpiaz, G. Garzoglio, K. E. Gollwitzer, M. Graham, M. Hu, D. Joffe, J. Kasper, G. Lasio, M. Lo Vetere, E. Luppi, M. MacrìM. Mandelkern, F. Marchetto, M. Marinelli, E. Menichetti, Z. Metreveli, R. Mussa, M. Negrini, M. M. Obertino, M. Pallavicini, N. Pastrone, C. Patrignani, T. K. Pedlar, S. Pordes, E. Robutti, W. Roethel, J. L. Rosen, P. Rumerio, R. Rusack, A. Santroni, J. Schultz, S. H. Seo, K. K. Seth, G. Stancari, M. Stancari, A. Tomaradze, I. Uman, T. Vidnovic, S. Werkema, P. Zweber

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An interference pattern in the π0π0 cross section was observed at the χc0 mass. A partial wave expansion was used to extract physics parameters. It was shown that the resonances can be observed and studied via interference in final states dominated by nonresonant channel.

Original languageEnglish (US)
Article number091801
Pages (from-to)918011-918014
Number of pages4
JournalPhysical review letters
Issue number9
StatePublished - Aug 29 2003


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