Two-body B meson decays to η and η′:: Observation of B→η′K

被引：95

作者：

Behrens, BH ^{[1
]}

Ford, WT

Gritsan, A

Krieg, H

Roy, J

Smith, JG

Zhao, M

Alexander, JP

Baker, R

Bebek, C

Berger, BE

Berkelman, K

Bloom, K

Boisvert, V

Cassel, DG

Crowcroft, DS

Dickson, M

von Dombrowski, S

Drell, PS

Ecklund, KM

Ehrlich, R

Foland, AD

Gaidarev, P

Gibbons, L

Gittelman, B

Gray, SW

Hartill, DL

Heltsley, BK

Hopman, PI

Kandaswamy, J

Kim, PC

Kreinick, DL

Lee, T

Liu, Y

Mistry, NB

Ng, CR

Nordberg, E

Ogg, M

Patterson, JR

Peterson, D

Riley, D

Soffer, A

Valant-Spaight, B

Ward, C

Athanas, M

Avery, P

Jones, CD

Lohner, M

Patton, S

Prescott, C

机构：

[1] Univ Colorado, Boulder, CO 80309 USA

[2] Cornell Univ, Ithaca, NY 14853 USA

[3] Univ Florida, Gainesville, FL 32611 USA

[4] Harvard Univ, Cambridge, MA 02138 USA

[5] Univ Hawaii, Honolulu, HI 96822 USA

[6] Univ Illinois, Urbana, IL 61801 USA

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

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

[9] Ithaca Coll, Ithaca, NY 14850 USA

[10] Univ Kansas, Lawrence, KS 66045 USA

[11] Univ Minnesota, Minneapolis, MN 55455 USA

[12] SUNY Albany, Albany, NY 12222 USA

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

[14] Univ Oklahoma, Norman, OK 73019 USA

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

[16] Univ Rochester, Rochester, NY 14627 USA

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

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

[19] Syracuse Univ, Syracuse, NY 13244 USA

[20] Vanderbilt Univ, Nashville, TN 37235 USA

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

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

[23] CALTECH, Pasadena, CA 91125 USA

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

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

[26] Univ Texas, Austin, TX 78712 USA

[27] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[28] BINP, RU-630090 Novosibirsk, Russia

[29] Yonsei Univ, Seoul 120749, South Korea

[30] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.80.3710

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a sample of 6.6 x 10(6) produced B mesons we have observed decays B --> eta'K, with branching fractions B(B+ --> eta'K+)= (6.5(-1.4)(+1.5) +/- 0.9) X 10(-5) and B(B-0 --> eta'K-0) = (4.7(-2.0)(+2.7) +/- 0.9) X 10(-5). We have searched with comparable sensitivity for 17 related decays to final states containing an eta or eta' meson accompanied by a single particle or low-lying resonance. Our upper limits for these constrain theoretical interpretations of the B --> eta'K signal.

引用

页码：3710 / 3714

页数：5

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