We have studied the process e+e -→μ+μ-γ at a center-of-mass energy near the γ(4S) resonance for a μ+μ- invariant mass range near the J/Ψ mass and measured the cross section σ(e+e-→J/Ψ γt →μ +μ-γ). The data set, corresponding to an integrated luminosity of 88.4 fb-1, was collected using the BABAR detector at the SLAC PEP-II collider. From the measured cross section we extract the product Γ(J/Ψ→e+e-)B(J/ Ψ→μ+μ-) = 0.330±0.008±0.007 keV. Using the world averages for B(J/Ψ →μ+μ - and B(J/Ψ→e+e-), we derive the J/Ψ electronic and total widths: Γ(J/Ψ→e+e -) = 5.61 ±0.20 keV and Γ = 94.7 ± 4.4 keV. © 2004 The American Physical Society.

Aubert, B., Barate, R., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., et al. (2004). J/Ψ production via initial state radiation in e+e -→ μ+μ-γ at an e +e- center-of-mass energy near 10.6 GeV. PHYSICAL REVIEW D, 69(1), 1-1 [10.1103/PhysRevD.69.011103].

J/Ψ production via initial state radiation in e+e -→ μ+μ-γ at an e +e- center-of-mass energy near 10.6 GeV

PATRIGNANI, CLAUDIA;
2004

Abstract

We have studied the process e+e -→μ+μ-γ at a center-of-mass energy near the γ(4S) resonance for a μ+μ- invariant mass range near the J/Ψ mass and measured the cross section σ(e+e-→J/Ψ γt →μ +μ-γ). The data set, corresponding to an integrated luminosity of 88.4 fb-1, was collected using the BABAR detector at the SLAC PEP-II collider. From the measured cross section we extract the product Γ(J/Ψ→e+e-)B(J/ Ψ→μ+μ-) = 0.330±0.008±0.007 keV. Using the world averages for B(J/Ψ →μ+μ - and B(J/Ψ→e+e-), we derive the J/Ψ electronic and total widths: Γ(J/Ψ→e+e -) = 5.61 ±0.20 keV and Γ = 94.7 ± 4.4 keV. © 2004 The American Physical Society.
2004
Aubert, B., Barate, R., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., et al. (2004). J/Ψ production via initial state radiation in e+e -→ μ+μ-γ at an e +e- center-of-mass energy near 10.6 GeV. PHYSICAL REVIEW D, 69(1), 1-1 [10.1103/PhysRevD.69.011103].
Aubert, B.;Barate, R.;Boutigny, D.;Gaillard, J.-M.;Hicheur, A.;Karyotakis, Y.;Lees, J. P.;Robbe, P.;Tisserand, V.;Zghiche, A.;Palano, A.;Pompili, A.;C...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/552637
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