$Measurement of the relative branching fraction Γ(D°→Kμv)/Γ(D°→μX)$
QR Code

Measurement of the relative branching fraction Γ(D°→Kμv)/Γ(D°→μX)

The fraction {ital f} of {ital D}{sup 0} semimuonic decays which occur through the {ital K}{mu}{nu} mode has been measured in a hybrid emulsion spectrometer. Analysis of 124 semimuonic {ital D}{sup 0}-decay candidates gives {ital f}=0.32{plus minus}0.05 (stat) {plus minus}0.05 (syst). From this meas...

Full description

Saved in:

Bibliographic Details
Published in:	Physical review letters Vol. 66; no. 14; pp. 1819 - 1822
Main Authors:	KODAMA, K, USHIDA, N, LIPTON, R. J, NICHLS, W. R, POTTER, D. M, RUSS, J. S, ZHANG, Y, Y, JANG, H. I, KIM, J. Y, LIM, I. T, PAC, M. Y, MOKHTARANI, A, BALLER, B. R, STEFANSKI, R. J, NAKAZAWA, K, TASAKA, S, CHOI, Y. S, CHUNG, K. H, KIM, D. C, PARK, I. G, SONG, J. S, YOON, C. S, PAOLONE, V. S, CHIKAWA, M, ABE, T, FUJII, T, FUJIOKA, G, FUJIWARA, K, FUKUSHIMA, H, HARA, T, TAKAHASHI, Y, TARUMA, K, TSUZUKI, Y, VOLK, J. T, YOKOYAMA, C, CHANG, S. D, CHEON, B. G, CHO, J. H, KANG, J. S, KIM, Y. I, KIM, T. Y, LEE, J. C, LEE, S. BV, LIM, G. Y, WILCOX, J. O, NAM, S. W, SHIN, T. S, SIM, K. S, WOO, J. K, ISOKANE, Y, TSUNEOKA, Y, AOKI, S, GAUTHIER, A, HOSHINO, K, KITAMURA, H, YAGER, M, EDELSTEIN, R. M, FREYBERGER, A. P, GIBAUT, D. B
Format:	Journal Article
Language:	English
Published:	Ridge, NY American Physical Society 08-04-1991
Subjects:	645101 - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties 645102 - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties 645103 - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Interactions & Baryon & Meson Properties ACCELERATORS Atomic and molecular physics BOSONS BRANCHING RATIO CHARGED PARTICLE DETECTION CHARM PARTICLES CHARMED MESONS COLLOIDS CYCLIC ACCELERATORS D MESONS D NEUTRAL MESONS DATA DECAY DETECTION DISPERSIONS ELEMENTARY PARTICLES EMULSIONS Exact sciences and technology Exotic atoms and molecules (containing mesons, muons, and other unusual particles) EXPERIMENTAL DATA FERMILAB TEVATRON HADRONS INFORMATION KAONS LIFETIME MASS SPECTRA MESONS MONTE CARLO METHOD NUMERICAL DATA PARTICLE DECAY PARTICLE KINEMATICS Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PION DETECTION PSEUDOSCALAR MESONS RADIATION DETECTION SEMILEPTONIC DECAY SPECTRA STRANGE MESONS STRANGE PARTICLES Studies of special atoms, molecules and their ions; clusters SYNCHROTRONS WEAK PARTICLE DECAY Monte Carlo method Branching ratio Muon Elementary particle Theoretical study Lepton Experimental study
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	The fraction {ital f} of {ital D}{sup 0} semimuonic decays which occur through the {ital K}{mu}{nu} mode has been measured in a hybrid emulsion spectrometer. Analysis of 124 semimuonic {ital D}{sup 0}-decay candidates gives {ital f}=0.32{plus minus}0.05 (stat) {plus minus}0.05 (syst). From this measurement and existing data on the {ital D}{sup 0} semileptonic branching ratio and lifetime, we obtain the branching ratio {ital R}({ital D}{sup 0}{r arrow}{ital K}{sup {minus}}{mu}{sup +}{nu})=(2.4{plus minus}0.4{plus minus}0.5)% and partial decay rate {Gamma}({ital D}{sup 0}{r arrow}{ital K}{sup {minus}}{mu}{sup +}{nu})=(5.6{plus minus}0.9{plus minus}1.2){times}10{sup 10} s{sup {minus}1}.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.66.1819