Measurement of the branching ratios ψ′ → e+e -, ψ′ → J/ψππ, and ψ′ → J/ψη

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. Macrì; M. 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

doi:10.1103/PhysRevD.71.032006

Measurement of the branching ratios ψ′ → e⁺e ^-, ψ′ → J/ψππ, and ψ′ → J/ψη

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

Physics and Astronomy (Twin Cities)

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Abstract

We have measured several branching ratios for ψ′ decay using the data collected by the FNAL E835 experiment during the year 2000, obtaining B(ψ′ → e⁺e^-) = 0.0068 ± 0.0001 ± 0.0004, B(ψ′ → J/ψπ⁺π^-) = 0.292 ± 0.005 ± 0.018, B(ψ′ → J/ψπ⁰π⁰) = 0.167 ± 0.005 ± 0.014, and B(ψ′ → J/ψη) = 0.028 ± 0.002 ± 0.002. We also present a measurement of the dipion mass distribution in the decays ψ′ → J/ψππ.

Original language	English (US)
Article number	032006
Pages (from-to)	032006-1-032006-7
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	71
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.71.032006
State	Published - Feb 2005

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Andreotti, M., Bagnasco, S., Baldini, W., Bettoni, D., Borreani, G., Buzzo, A., Calabrese, R., Cester, R., Cibinetto, G., Dalpiaz, P., Garzoglio, G., Gollwitzer, K. E., Graham, M., Hu, M., Joffe, D., Kasper, J., Lasio, G., Lo Vetere, M., Luppi, E., ... Zweber, P. (2005). Measurement of the branching ratios ψ′ → e⁺e ^-, ψ′ → J/ψππ, and ψ′ → J/ψη. Physical Review D - Particles, Fields, Gravitation and Cosmology, 71(3), 032006-1-032006-7. Article 032006. https://doi.org/10.1103/PhysRevD.71.032006

Andreotti, M, Bagnasco, S, Baldini, W, Bettoni, D, Borreani, G, Buzzo, A, Calabrese, R, Cester, R, Cibinetto, G, Dalpiaz, P, Garzoglio, G, Gollwitzer, KE, Graham, M, Hu, M, Joffe, D, Kasper, J, Lasio, G, Lo Vetere, M, Luppi, E, Macrì, M, Mandelkern, M, Marchetto, F, Marinelli, M, Menichetti, E, Metreveli, Z, Mussa, R, Negrini, M, 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, M, Tomaradze, A, Uman, I, Vidnovic, T, Werkema, S & Zweber, P 2005, 'Measurement of the branching ratios ψ′ → e⁺e ^-, ψ′ → J/ψππ, and ψ′ → J/ψη', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 71, no. 3, 032006, pp. 032006-1-032006-7. https://doi.org/10.1103/PhysRevD.71.032006

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title = "Measurement of the branching ratios ψ′ → e+e -, ψ′ → J/ψππ, and ψ′ → J/ψη",

abstract = "We have measured several branching ratios for ψ′ decay using the data collected by the FNAL E835 experiment during the year 2000, obtaining B(ψ′ → e+e-) = 0.0068 ± 0.0001 ± 0.0004, B(ψ′ → J/ψπ+π-) = 0.292 ± 0.005 ± 0.018, B(ψ′ → J/ψπ0π0) = 0.167 ± 0.005 ± 0.014, and B(ψ′ → J/ψη) = 0.028 ± 0.002 ± 0.002. We also present a measurement of the dipion mass distribution in the decays ψ′ → J/ψππ.",

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

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T1 - Measurement of the branching ratios ψ′ → e+e -, ψ′ → J/ψππ, and ψ′ → J/ψη

AU - Andreotti, M.

AU - Bagnasco, S.

AU - Baldini, W.

AU - Bettoni, D.

AU - Borreani, G.

AU - Buzzo, A.

AU - Calabrese, R.

AU - Cester, R.

AU - Cibinetto, G.

AU - Dalpiaz, P.

AU - Garzoglio, G.

AU - Gollwitzer, K. E.

AU - Graham, M.

AU - Hu, M.

AU - Joffe, D.

AU - Kasper, J.

AU - Lasio, G.

AU - Lo Vetere, M.

AU - Luppi, E.

AU - Macrì, M.

AU - Mandelkern, M.

AU - Marchetto, F.

AU - Marinelli, M.

AU - Menichetti, E.

AU - Metreveli, Z.

AU - Mussa, R.

AU - Negrini, M.

AU - Obertino, M. M.

AU - Pallavicini, M.

AU - Pastrone, N.

AU - Patrignani, C.

AU - Pedlar, T. K.

AU - Pordes, S.

AU - Robutti, E.

AU - Roethel, W.

AU - Rosen, J. L.

AU - Rumerio, P.

AU - Rusack, R.

AU - Santroni, A.

AU - Schultz, J.

AU - Seo, S. H.

AU - Seth, K. K.

AU - Stancari, G.

AU - Stancari, M.

AU - Tomaradze, A.

AU - Uman, I.

AU - Vidnovic, T.

AU - Werkema, S.

AU - Zweber, P.

PY - 2005/2

Y1 - 2005/2

N2 - We have measured several branching ratios for ψ′ decay using the data collected by the FNAL E835 experiment during the year 2000, obtaining B(ψ′ → e+e-) = 0.0068 ± 0.0001 ± 0.0004, B(ψ′ → J/ψπ+π-) = 0.292 ± 0.005 ± 0.018, B(ψ′ → J/ψπ0π0) = 0.167 ± 0.005 ± 0.014, and B(ψ′ → J/ψη) = 0.028 ± 0.002 ± 0.002. We also present a measurement of the dipion mass distribution in the decays ψ′ → J/ψππ.

AB - We have measured several branching ratios for ψ′ decay using the data collected by the FNAL E835 experiment during the year 2000, obtaining B(ψ′ → e+e-) = 0.0068 ± 0.0001 ± 0.0004, B(ψ′ → J/ψπ+π-) = 0.292 ± 0.005 ± 0.018, B(ψ′ → J/ψπ0π0) = 0.167 ± 0.005 ± 0.014, and B(ψ′ → J/ψη) = 0.028 ± 0.002 ± 0.002. We also present a measurement of the dipion mass distribution in the decays ψ′ → J/ψππ.

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U2 - 10.1103/PhysRevD.71.032006

DO - 10.1103/PhysRevD.71.032006

M3 - Article

AN - SCOPUS:84927758669

SN - 1550-7998

VL - 71

SP - 032006-1-032006-7

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 3

M1 - 032006

ER -

Measurement of the branching ratios ψ′ → e⁺e ^-, ψ′ → J/ψππ, and ψ′ → J/ψη

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