First observation of the decays B0→D- p(p)over-tildeπ+ and B0→D- p(n)over-bar

被引：36

作者：

Anderson, S ^{[1
]}

Frolov, VV

Kubota, Y

Lee, SJ

Mahapatra, R

O'Neill, JJ

Poling, R

Riehle, T

Smith, A

Stepaniak, CJ

Urheim, J

Ahmed, S

Alam, MS

Athar, SB

Jian, L

Ling, L

Saleem, M

Timm, S

Wappler, F

Anastassov, A

Duboscq, JE

Eckhart, E

Gan, KK

Gwon, C

Hart, T

Honscheid, K

Hufnagel, D

Kagan, H

Kass, R

Pedlar, TK

Schwarthoff, H

Thayer, JB

von Toerne, E

Zoeller, MM

Richichi, SJ

Sevrini, H

Skubic, P

Undrus, A

Chen, S

Fast, J

Hinson, JW

Lee, J

Miller, DH

Shibata, EI

Shipsey, IPJ

Pavlunin, V

Cronin-Hennessy, D

Lyon, AL

Thorndike, EH

Jessop, CP

机构：

[1] Univ Minnesota, Minneapolis, MN 55455 USA

[2] SUNY Albany, Albany, NY 12222 USA

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

[4] Univ Oklahoma, Norman, OK 73019 USA

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

[6] Univ Rochester, Rochester, NY 14627 USA

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

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

[9] Syracuse Univ, Syracuse, NY 13244 USA

[10] Univ Texas, Austin, TX 78712 USA

[11] Univ Texas Pan Amer, Edinburg, TX 78539 USA

[12] Vanderbilt Univ, Nashville, TN 37235 USA

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

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

[15] CALTECH, Pasadena, CA 91125 USA

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

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

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

[19] Univ Colorado, Boulder, CO 80309 USA

[20] Cornell Univ, Ithaca, NY 14853 USA

[21] Univ Florida, Gainesville, FL 32611 USA

[22] Harvard Univ, Cambridge, MA 02138 USA

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

[24] Univ Illinois, Urbana, IL 61801 USA

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

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

[27] Ithaca Coll, Ithaca, NY 14850 USA

[28] Univ Kansas, Lawrence, KS 66045 USA

[29] Univ Cincinnati, Cincinnati, OH 45221 USA

[30] MIT, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.86.2732

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of exclusive decays of the type B --> D*N (N) over barX, where N is a nucleon. Using a sample of 9.7 X 10(6)B (B) over bar pairs collected with the CLEO detector operating at the Cornell Electron Storage Ring, we measure the branching fractions B(B-0 --> D*(-) p (p) over bar pi (+)) = (6.5(-1.2)(+1.3) +/- 1.0) X 10(-4) and B(B-0 --> D*(-) p (n) over bar) = (14.5(-3.0)(+3.4) +/- 2.7) X 10(-4). Antineutrons are identified by their annihilation in the CsI electromagnetic calorimeter.

引用

页码：2732 / 2736

页数：5

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RUBIERA A, THESIS U FLORIDA

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First observation of the decays B0→D*- p(p)over-tildeπ+ and B0→D*- p(n)over-bar

First observation of the decays B0→D- p(p)over-tildeπ+ and B0→D- p(n)over-bar