Confirmation of the Y(4260) resonance production in initial state radiation

被引：191

作者：

He, Q.

Insler, J.

Muramatsu, H.

Park, C. S.

Thorndike, E. H.

Yang, F.

Coan, T. E.

Gao, Y. S.

Artuso, M.

Blusk, S.

Butt, J.

Li, J.

Menaa, N.

Mountain, R.

Nisar, S.

Randrianarivony, K.

Sia, R.

Skwarnicki, T.

Stone, S.

Wang, J. C.

Zhang, K.

Csorna, S. E.

Bonvicini, G.

Cinabro, D.

Dubrovin, M.

Lincoln, A.

Asner, D. M.

Edwards, K. W.

Briere, R. A.

Chen, J.

Ferguson, T.

Tatishvili, G.

Vogel, H.

Watkins, M. E.

Rosner, J. L.

Adam, N. E.

Alexander, J. P.

Berkelman, K.

Cassel, D. G.

Duboscq, J. E.

Ecklund, K. M.

Ehrlich, R.

Fields, L.

Galik, R. S.

Gibbons, L.

Gray, R.

Gray, S. W.

Hartill, D. L.

Hertz, D.

Jones, C. D.

机构：

[1] Univ Rochester, Rochester, NY 14627 USA

[2] So Methodist Univ, Dallas, TX 75275 USA

[3] Syracuse Univ, Syracuse, NY 13244 USA

[4] Vanderbilt Univ, Nashville, TN 37235 USA

[5] Wayne State Univ, Detroit, MI 48202 USA

[6] Carleton Univ, Ottawa, ON K1S 5B6, Canada

[7] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[8] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[9] Cornell Univ, Ithaca, NY 14853 USA

[10] Univ Florida, Gainesville, FL 32611 USA

[11] George Mason Univ, Fairfax, VA 22030 USA

[12] Univ Illinois, Urbana, IL 61801 USA

[13] Indiana Univ, Bloomington, IN 47405 USA

[14] Univ Kansas, Lawrence, KS 66045 USA

[15] Luther Coll, Decorah, IA 52101 USA

[16] Univ Minnesota, Minneapolis, MN 55455 USA

[17] Northwestern Univ, Evanston, IL 60208 USA

[18] SUNY Albany, Albany, NY 12222 USA

[19] Univ Oklahoma, Norman, OK 73019 USA

[20] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[21] Univ Puerto Rico, Mayaguez, PR 00681 USA

[22] Purdue Univ, W Lafayette, IN 47907 USA

[23] Rensselaer Polytech Inst, Troy, NY 12180 USA

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.74.091104

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using 13.3 fb(-1) of e(+)e(-) collision data taken in the Upsilon(1S-4S) region with the CLEO III detector at the CESR collider, a search has been made for the new resonance Y(4260) recently reported by the BABAR Collaboration. The production of Y(4260) in initial state radiation (ISR), and its decay into pi(+)pi(-)J/psi, are confirmed. A good quality fit to our data is obtained with a single resonance. We determine M(Y(4260))=(4284(-16)(+17)(stat)+/- 4(syst)) MeV/c(2), Gamma(Y(4260))=(73(-25)(+39)(stat)+/- 5(syst)) MeV/c(2), and Gamma(ee)(Y(4260))xB(Y(4260)->pi(+)pi(-)J/psi)=(8.9(-3.1)(+3.9)(stat)+/- 1.8(syst)) eV/c(2).

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