Measurement of the Ξc+ lifetime -: art. no. 031102

被引:4
作者
Mahmood, AH [1 ]
Csorna, SE
Danko, I
Xu, Z
Bonvicini, G
Cinabro, D
Dubrovin, M
McGee, S
Bornheim, A
Lipeles, E
Pappas, SP
Shapiro, A
Sun, WM
Weinstein, AJ
Masek, G
Paar, HP
Mahapatra, R
Morrison, RJ
Nelson, HN
Briere, RA
Chen, GP
Ferguson, T
Tatishvili, G
Vogel, H
Adam, NE
Alexander, JP
Bebek, C
Berkelman, K
Blanc, F
Boisvert, V
Cassel, DG
Drell, RS
Duboscq, JE
Ecklund, KM
Ehrlich, R
Galik, RS
Gibbons, L
Gittelman, B
Gray, SW
Hartill, DL
Heltsley, BK
Hsu, L
Jones, CD
Kandaswamy, J
Kreinick, DL
Magerkurth, A
Mahlke-Krüger, H
Meyer, TO
Mistry, NB
Nordberg, E
机构
[1] Univ Texas Pan Amer, Edinburg, TX 78539 USA
[2] Vanderbilt Univ, Nashville, TN 37235 USA
[3] Wayne State Univ, Detroit, MI 48202 USA
[4] CALTECH, Pasadena, CA 91125 USA
[5] Univ Calif San Diego, La Jolla, CA 92093 USA
[6] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA
[7] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[8] Cornell Univ, Ithaca, NY 14853 USA
[9] Univ Florida, Gainesville, FL 32611 USA
[10] Harvard Univ, Cambridge, MA 02138 USA
[11] Univ Illinois, Urbana, IL 61801 USA
[12] Carleton Univ, Ottawa, ON K1S 5B6, Canada
[13] Inst Particle Phys, Ottawa, ON, Canada
[14] Univ Kansas, Lawrence, KS 66045 USA
[15] Univ Minnesota, Minneapolis, MN 55455 USA
[16] SUNY Albany, Albany, NY 12222 USA
[17] Ohio State Univ, Columbus, OH 43210 USA
[18] Univ Oklahoma, Norman, OK 73019 USA
[19] Univ Pittsburgh, Pittsburgh, PA 15260 USA
[20] Purdue Univ, W Lafayette, IN 47907 USA
[21] Univ Rochester, Rochester, NY 14627 USA
[22] So Methodist Univ, Dallas, TX 75275 USA
[23] Syracuse Univ, Syracuse, NY 13244 USA
来源
PHYSICAL REVIEW D | 2002年 / 65卷 / 03期
关键词
D O I
10.1103/PhysRevD.65.031102
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Xi(c)(+) lifetime is measured using 9.0 fb(-1) of e(+) e(-) annihilation data collected on and just below the Y (4 S) resonance with the CLEO II.V detector at CESR. This is the first measurement of the Xi(c)(+) lifetime from a collider experiment. Using an unbinned maximum likelihood fit, the Xi(c)(+) lifetime is measured to be 503 +/-47(stat)+/-18(syst) fs. The precision of this measurement is comparable to previous measurements carried out by fixed target experiments with different sources of systematic uncertainties.
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页数:5
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