Observation of the radiative decay D*+→D+γ

被引：18

作者：

Bartelt, J

Csorna, SE

Jain, V

McLean, KW

Marka, S

Godang, R

Kinoshita, K

Lai, IC

Pomianowski, P

Schrenk, S

Bonvicini, G

Cinabro, D

Greene, R

Perera, LP

Zhou, GJ

Barish, B

Chadha, M

Chan, S

Eigen, G

Miller, JS

O'Grady, C

Schmidtler, M

Urheim, J

Weinstein, AJ

Wurthwein, F

Bliss, DW

Masek, G

Paar, HP

Prell, S

Sharma, V

Asner, DM

Gronberg, J

Hill, TS

Lange, DJ

Morrison, RJ

Nelson, HN

Nelson, TK

Richman, JD

Roberts, D

Ryd, A

Witherell, MS

Balest, R

Behrens, BH

Ford, WT

Gritsan, A

Park, H

Roy, J

Smith, JG

Alexander, JP

Bebek, C

机构：

[1] Vanderbilt Univ, Nashville, TN 37235 USA

[2] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 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] Univ Colorado, Boulder, CO 80309 USA

[8] Cornell Univ, Ithaca, NY 14853 USA

[9] Univ Florida, Gainesville, FL 32611 USA

[10] Harvard Univ, Cambridge, MA 02138 USA

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

[12] Univ Illinois, Urbana, IL 61801 USA

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

[14] Ithaca Coll, Ithaca, NY 14850 USA

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

[16] Univ Kansas, Lawrence, KS 66045 USA

[17] Univ Minnesota, Minneapolis, MN 55455 USA

[18] SUNY Albany, Albany, NY 12222 USA

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

[20] Univ Oklahoma, Norman, OK 73019 USA

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

[22] Univ Rochester, Rochester, NY 14627 USA

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

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

[25] Syracuse Univ, Syracuse, NY 13244 USA

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

[27] Univ Texas, Austin, TX 78712 USA

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

[29] BINP, RU-630090 Novosibirsk, Russia

[30] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.80.3919

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed a signal for the decay D*(+) --> D(+)gamma at a significance of 4 standard deviations. From the measured branching ratio B(D*(+) --> D(+)gamma)/B(D*(+) --> D(+)pi(0)) = 0.055 +/- 0.014 +/- 0.010 we find B(D*(+) --> D(+)gamma) = 0.017 +/- 0.004 +/- 0.003, where the first uncertainty is statistical and the second is systematic. We also report the highest precision determination of the remaining D*(+) branching fractions.

引用

页码：3919 / 3923

页数：5

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