A search for charmonium and other new states is performed in a study of exclusive initial-state-radiation production of D (D) over bar events from electron-positron annihilations at a center-of-mass energy of 10.58 GeV. The data sample corresponds to an integrated luminosity of 384 fb(-1) and was recorded by the BABAR experiment at the PEP-II storage ring. The D (D) over bar mass spectrum shows clear evidence of the psi(3770) plus other structures near 3.9, 4.1, and 4.4 GeV/c(2). No evidence for Y(4260)-> D (D) over bar is observed, leading to an upper limit of B(Y(4260)-> D (D) over bar)/B(Y(4260)-> J/psi pi(+)pi(-))< 1.0 at 90% confidence level.

Study of the exclusive initial-state-radiation production of the D(D)over-bar system / Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J.p., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Tico, G., Grauges, E., Lopez, L., Palano, A., Pappagallo, M., Eigen, G., Stugu, B., Sun, L., Abrams, G.s., Battaglia, M., Brown, D.n., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 76:(2007). [10.1103/physrevd.76.111105]

Study of the exclusive initial-state-radiation production of the D(D)over-bar system

RAHATLOU, SHAHRAM;BELLINI, Fabio;CAVOTO, Gianluca;DEL RE, Daniele;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;VOENA C;
2007

Abstract

A search for charmonium and other new states is performed in a study of exclusive initial-state-radiation production of D (D) over bar events from electron-positron annihilations at a center-of-mass energy of 10.58 GeV. The data sample corresponds to an integrated luminosity of 384 fb(-1) and was recorded by the BABAR experiment at the PEP-II storage ring. The D (D) over bar mass spectrum shows clear evidence of the psi(3770) plus other structures near 3.9, 4.1, and 4.4 GeV/c(2). No evidence for Y(4260)-> D (D) over bar is observed, leading to an upper limit of B(Y(4260)-> D (D) over bar)/B(Y(4260)-> J/psi pi(+)pi(-))< 1.0 at 90% confidence level.
2007
01 Pubblicazione su rivista::01a Articolo in rivista
Study of the exclusive initial-state-radiation production of the D(D)over-bar system / Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J.p., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Tico, G., Grauges, E., Lopez, L., Palano, A., Pappagallo, M., Eigen, G., Stugu, B., Sun, L., Abrams, G.s., Battaglia, M., Brown, D.n., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 76:(2007). [10.1103/physrevd.76.111105]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231064
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