Search for the familon via B±→π±X0, B±→K±X0, and B0→KS0X0 decays -: art. no. 271801

被引：25

作者：

Ammar, R ^{[1
]}

Bean, A

Besson, D

Zhao, X

Anderson, S

Frolov, VV

Kubota, Y

Lee, SJ

Poling, R

Smith, A

Stepaniak, CJ

Urheim, J

Ahmed, S

Alam, MS

Athar, SB

Jian, L

Ling, L

Saleem, M

Timm, S

Wappler, F

Anastassov, A

Eckhart, E

Gan, KK

Gwon, C

Hart, T

Honscheid, K

Hufnagel, D

Kagan, H

Kass, R

Pedlar, TK

Thayer, JB

von Toerne, E

Zoeller, MM

Richichi, SJ

Severini, H

Skubic, P

Undrus, A

Savinov, V

Chen, S

Hinson, JW

Lee, J

Miller, DH

Pavlunin, V

Shibata, EI

Shipsey, IPJ

Cronin-Hennessy, D

Lyon, AL

Thorndike, EH

Coan, TE

Fadeyev, V

机构：

[1] Univ Kansas, Lawrence, KS 66045 USA

[2] Univ Minnesota, Minneapolis, MN 55455 USA

[3] SUNY Albany, Albany, NY 12222 USA

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

[5] Univ Oklahoma, Norman, OK 73019 USA

[6] Univ Pittsburgh, Pittsburgh, PA 15260 USA

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

[8] Univ Rochester, Rochester, NY 14627 USA

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

[10] Syracuse Univ, Syracuse, NY 13244 USA

[11] Univ Texas, Austin, TX 78712 USA

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

[13] Vanderbilt Univ, Nashville, TN 37235 USA

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

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

[16] CALTECH, Pasadena, CA 91125 USA

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

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

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

[20] Cornell Univ, Ithaca, NY 14853 USA

[21] Univ Florida, Gainesville, FL 32611 USA

[22] Harvard Univ, Cambridge, MA 02138 USA

[23] Univ Illinois, Urbana, IL 61801 USA

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

[25] Inst Particle Phys, Ottawa, ON, Canada

[26] Ithaca Coll, Ithaca, NY 14850 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 27期

关键词：

D O I：

10.1103/PhysRevLett.87.271801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have searched for the two-body decay of the B meson to a light pseudoscalar meson h = pi (+/-), K+/-, K-S(0) and a massless neutral feebly interacting particle X-0 such as the familon, the Nambu-Goldstone boson associated with a spontaneously broken global family symmetry. We find no significant signal by analyzing a data sample containing 9.7 X 10(6) B(B) over bar mesons collected with the CLEO detector at the Cornell Electron Storage Ring, and set 90% C.L. upper limits B(B+/- --> h(+/-)X(0)) = 4.9 X 10(-5) and B(B-0 --> (KSX0)-X-0) = 5.3 X 10(-5). These limits correspond to a lower bound of approximately 10(8) GeV on the family symmetry breaking scale with vector coupling involving the third generation of quarks.

引用

页码：271801 / 271801

页数：5

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