Measurement of the branching ratios psi(')-> e(+)e(-), psi '-> J/psi pi pi, and psi '-> J/psi eta

ANDREOTTI, Mirco; BAGNASCO S; BALDINI W; BETTONI D; BORREANI G; BUZZO A; CALABRESE, Roberto; CESTER R; CIBINETTO, Gianluigi; DALPIAZ, Pietro; GARZOGLIO G; GOLLWITZER KE; GRAHAM M; HU M; JOFFE D; KASPER J; LASIO G; LO VETERE M; LUPPI, Eleonora; MACRI M; MANDELKERN M; MARCHETTO F; MARINELLI M; MENICHETTI E; METREVELI Z; MUSSA R; NEGRINI, Matteo; OBERTINO MM; PALLAVICINI M; PASTRONE N; PATRIGNANI C; PEDLAR TK; PORDES S; ROBUTTI E; ROETHEL W; ROSEN JL; RUMERIO P; RUSACK R; SANTRONI A; SCHULTZ J; SEO SH; SETH KK; STANCARI G; STANCARI, Michelle Dawn; TOMARADZE A; UMAN I; VIDNOVIC T; WERKEMA S; ZWEBER P; CA FNAL EXPT E835

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Archivio istituzionale della ricerca - Università di Ferrara

Article . 2005

Data sources: Archivio istituzionale della ricerca - Università di Ferrara

Measurement of the branching ratios psi(')-> e(+)e(-), psi '-> J/psi pi pi, and psi '-> J/psi eta

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2005 Italy English

Authors: ANDREOTTI, Mirco; BAGNASCO S; BALDINI W; BETTONI D; BORREANI G; BUZZO A; CALABRESE, Roberto; +43 Authors

handle: 11392/1211484

Measurement of the branching ratios psi(')-> e(+)e(-), psi '-> J/psi pi pi, and psi '-> J/psi eta

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Abstract

We have measured several branching ratios for psi(') decay using the data collected by the FNAL E835 experiment during the year 2000, obtaining B(psi(')-->e(+)e(-))=0.0068+/-0.0001+/-0.0004, B(psi(')-->J/psipi(+)pi(-))=0.292+/-0.005+/-0.018, B(psi(')-->J/psipi(0)pi(0))=0.167+/-0.005+/-0.014, and B(psi(')-->J/psieta)=0.028+/-0.002+/-0.002. We also present a measurement of the dipion mass distribution in the decays psi(')-->J/psipipi.

Country

Italy

Related Organizations

University of Ferrara
Italy

Keywords

HADRONIC TRANSITIONS; EXPERIMENT E835; DECAYS; STATES; FERMILAB

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