First observation of the decay B0→D+D-

被引：11

作者：

Artuso, M ^{[1
]}

Dambasuren, E

Kopp, S

Moneti, GC

Mountain, R

Schuh, S

Skwarnicki, T

Stone, S

Titov, A

Viehhauser, G

Wang, JC

Csorna, SE

McLean, KW

Marka, S

Xu, Z

Godang, R

Kinoshita, K

Lai, IC

Pomianowski, P

Schrenk, S

Bonvicini, G

Cinabro, D

Greene, R

Perera, LP

Zhou, GJ

Chan, S

Eigen, G

Lipeles, E

Miller, JS

Schmidtler, H

Shapiro, A

Sun, WM

Urheim, J

Weinstein, AJ

Würthwein, F

Jaffe, DE

Masek, G

Paar, HP

Potter, EM

Prell, S

Sharma, V

Asner, DM

Eppich, A

Gronberg, J

Hill, TS

Korte, CM

Lange, DJ

Morrison, RJ

Nelson, HN

Nelson, TK

机构：

[1] Syracuse Univ, Syracuse, NY 13244 USA

[2] Vanderbilt Univ, Nashville, TN 37235 USA

[3] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

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

[5] CALTECH, Pasadena, CA 91125 USA

[6] Univ Calif San Diego, La Jolla, CA 92093 USA

[7] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[8] Univ Colorado, Boulder, CO 80309 USA

[9] Cornell Univ, Ithaca, NY 14853 USA

[10] Univ Florida, Gainesville, FL 32611 USA

[11] Harvard Univ, Cambridge, MA 02138 USA

[12] Univ Hawaii Manoa, Honolulu, HI 96822 USA

[13] Univ Illinois, Urbana, IL 61801 USA

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

[15] Inst Particle Phys, Victoria, BC, Canada

[16] McGill Univ, Montreal, PQ H3A 2T8, Canada

[17] Ithaca Coll, Ithaca, NY 14850 USA

[18] Univ Kansas, Lawrence, KS 66045 USA

[19] Univ Minnesota, Minneapolis, MN 55455 USA

[20] SUNY Albany, Albany, NY 12222 USA

[21] Ohio State Univ, Columbus, OH 43210 USA

[22] Univ Oklahoma, Norman, OK 73019 USA

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

[24] Univ Rochester, Rochester, NY 14627 USA

[25] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA

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

[27] Univ Cincinnati, Cincinnati, OH 45221 USA

[28] Univ Texas, Austin, TX 78712 USA

[29] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.82.3020

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed four fully reconstructed B-0 --> D*+D*- candidates in 5.8 x 10(6) Y(4S) --> B (B) over bar decays recorded with the CLEO detector. The background is estimated to be 0.31 +/- 0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 x 10(-4). The measured decay rate, B(B-0 --> D*+D*-) = [6.2(-2.9)(+4.0)(stat) +/- 1.0(syst)] x 10(-4), is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry. [S0031-9007(99)08881-X].

引用

页码：3020 / 3024

页数：5

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First observation of the decay B0→D*+D*-

First observation of the decay B0→D+D-