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

被引：17

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

共 25 条

[21]

KARNAL AN, 1992, PHYS LETT B, V284, P421

[22] THE CLEO-II DETECTOR [J].

KUBOTA, Y ;

NELSON, JK ;

PERTICONE, D ;

POLING, R ;

SCHRENK, S ;

ALAM, MS ;

BIAN, ZH ;

CHEN, D ;

KIM, IJ ;

LI, WC ;

LOU, XC ;

NEMATI, B ;

SUN, CR ;

WANG, PN ;

ZOELLER, MM ;

CRAWFORD, G ;

FULTON, R ;

GAN, KK ;

JENSEN, T ;

KAGAN, H ;

KASS, R ;

MALCHOW, R ;

MORROW, F ;

SUNG, MK ;

WHITMORE, J ;

WILSON, P ;

BUTLER, F ;

FU, X ;

KALBFLEISCH, G ;

LAMBRECHT, M ;

SKUBIC, P ;

SNOW, J ;

WANG, PL ;

BORTOLETTO, D ;

BROWN, DN ;

CHEN, WY ;

DOMINICK, J ;

MCILWAIN, RL ;

MILLER, DH ;

MODESITT, M ;

SHIBATA, EI ;

SCHAFFNER, SF ;

SHIPSEY, IPJ ;

YAO, WM ;

BATTLE, M ;

KROHA, H ;

SPARKS, K ;

THORNDIKE, EH ;

WANG, CH ;

STROYNOWSKI, R .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 320 (1-2) :66-113

[23] PRODUCTION AND FRAGMENTATION OF THE D-STAR-0 MESON IN E+E- ANNIHILATIONS AT SQUARE-ROOT-S=29 GEV [J].

LOW, EH ;

ABACHI, S ;

AKERLOF, C ;

BARINGER, P ;

BLOCKUS, D ;

BRABSON, B ;

BROM, JM ;

BYLSMA, BG ;

CHAPMAN, J ;

CORK, B ;

DEBONTE, R ;

DERRICK, M ;

ERREDE, D ;

GAN, KK ;

JUNG, C ;

KESTEN, P ;

KOLTICK, D ;

KOOIJMAN, P ;

LOEFFLER, FJ ;

LOOS, JS ;

MCILWAIN, RL ;

MEYER, DI ;

MILLER, DH ;

MUSGRAVE, B ;

NG, CR ;

NITZ, D ;

OGREN, H ;

PRICE, LE ;

RANGAN, LK ;

REPOND, J ;

RUST, DR ;

SEIDL, A ;

SHIBATA, EI ;

SUGANO, K ;

THUN, RT ;

WEISS, JM ;

WOOD, DE .

PHYSICS LETTERS B, 1987, 183 (02) :232-236

[24] STRONG AND RADIATIVE D-ASTERISK DECAYS [J].

ODONNELL, PJ ;

XU, QP .

PHYSICS LETTERS B, 1994, 336 (01) :113-118

[25] CHIRAL PERTURBATION-THEORY FOR HADRONS CONTAINING A HEAVY QUARK [J].

WISE, MB .

PHYSICAL REVIEW D, 1992, 45 (07) :R2188-R2191

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