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Title: Observation of D sub s sup + r arrow K sup 0 K sup + and D sub s sup + r arrow K sup 0 K sup + and an upper limit on D sub s sup + r arrow K sup 0. pi. sup +

Abstract

We report the first observation of the decay {ital D}{sub {ital s}}{sup +}{r arrow}{bar K}{sup 0}{ital K}{sup +} and a new measurement of the decay {ital D}{sub {ital s}}{sup +}{r arrow}{ital {bar K}} *(892){sup 0}{ital K}{sup +}. The data were collected at {radical}{ital s}=4.14 GeV with the Mark III detector at the SLAC {ital e}{sup +}{ital e}{sup {minus}} storage ring at SPEAR. We obtain the relative branching fractions {ital B}({ital D}{sup +}{sub {ital s}}{r arrow}{ital {bar K}}{sup 0}{ital K}{sup +}/ {ital B}{ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +})=0.92{plus minus}0.32{plus minus}0.20 and {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{ital {bar K}}{sup *0}{ital K}{sup +})/ {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +})=0.84{plus minus}0.30{plus minus}0.22, using our new determination of {sigma}{ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}). A search for the Cabibbo-suppressed decay {ital D}{ital s}{sup +}{r arrow}{ital K}{sup 0}{pi}{sup +} yields a limit {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{ital K}{sup 0}{pi}{sup +})/{ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}){lt}0.21 at the 90% confidence level.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
5461965
Resource Type:
Journal Article
Journal Name:
Physical Review Letters; (USA)
Additional Journal Information:
Journal Volume: 63:12; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; D PLUS MESONS; WEAK HADRONIC DECAY; BRANCHING RATIO; CABIBBO ANGLE; EXPERIMENTAL DATA; GEV RANGE 01-10; KAONS NEUTRAL; KAONS PLUS; MASS; MONTE CARLO METHOD; PIONS PLUS; QUANTUM CHROMODYNAMICS; SPEAR; TIME-OF-FLIGHT METHOD; BOSONS; CHARM PARTICLES; CHARMED MESONS; D MESONS; DATA; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FIELD THEORIES; GEV RANGE; HADRONS; INFORMATION; KAONS; MESONS; NUMERICAL DATA; PARTICLE DECAY; PIONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; STORAGE RINGS; STRANGE MESONS; STRANGE PARTICLES; WEAK PARTICLE DECAY; 645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties

Citation Formats

Adler, J, Bai, Z, Becker, J J, Blaylock, G T, Bolton, T, Brient, J, Brown, J S, Bunnell, K O, Burchell, M, Burnett, T H, others, and, and Mark III Collaboration. Observation of D sub s sup + r arrow K sup 0 K sup + and D sub s sup + r arrow K sup 0 K sup + and an upper limit on D sub s sup + r arrow K sup 0. pi. sup +. United States: N. p., 1989. Web. doi:10.1103/PhysRevLett.63.1211.
Adler, J, Bai, Z, Becker, J J, Blaylock, G T, Bolton, T, Brient, J, Brown, J S, Bunnell, K O, Burchell, M, Burnett, T H, others, and, & Mark III Collaboration. Observation of D sub s sup + r arrow K sup 0 K sup + and D sub s sup + r arrow K sup 0 K sup + and an upper limit on D sub s sup + r arrow K sup 0. pi. sup +. United States. https://doi.org/10.1103/PhysRevLett.63.1211
Adler, J, Bai, Z, Becker, J J, Blaylock, G T, Bolton, T, Brient, J, Brown, J S, Bunnell, K O, Burchell, M, Burnett, T H, others, and, and Mark III Collaboration. Mon . "Observation of D sub s sup + r arrow K sup 0 K sup + and D sub s sup + r arrow K sup 0 K sup + and an upper limit on D sub s sup + r arrow K sup 0. pi. sup +". United States. https://doi.org/10.1103/PhysRevLett.63.1211.
@article{osti_5461965,
title = {Observation of D sub s sup + r arrow K sup 0 K sup + and D sub s sup + r arrow K sup 0 K sup + and an upper limit on D sub s sup + r arrow K sup 0. pi. sup +},
author = {Adler, J and Bai, Z and Becker, J J and Blaylock, G T and Bolton, T and Brient, J and Brown, J S and Bunnell, K O and Burchell, M and Burnett, T H and others, and and Mark III Collaboration},
abstractNote = {We report the first observation of the decay {ital D}{sub {ital s}}{sup +}{r arrow}{bar K}{sup 0}{ital K}{sup +} and a new measurement of the decay {ital D}{sub {ital s}}{sup +}{r arrow}{ital {bar K}} *(892){sup 0}{ital K}{sup +}. The data were collected at {radical}{ital s}=4.14 GeV with the Mark III detector at the SLAC {ital e}{sup +}{ital e}{sup {minus}} storage ring at SPEAR. We obtain the relative branching fractions {ital B}({ital D}{sup +}{sub {ital s}}{r arrow}{ital {bar K}}{sup 0}{ital K}{sup +}/ {ital B}{ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +})=0.92{plus minus}0.32{plus minus}0.20 and {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{ital {bar K}}{sup *0}{ital K}{sup +})/ {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +})=0.84{plus minus}0.30{plus minus}0.22, using our new determination of {sigma}{ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}). A search for the Cabibbo-suppressed decay {ital D}{ital s}{sup +}{r arrow}{ital K}{sup 0}{pi}{sup +} yields a limit {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{ital K}{sup 0}{pi}{sup +})/{ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}){lt}0.21 at the 90% confidence level.},
doi = {10.1103/PhysRevLett.63.1211},
url = {https://www.osti.gov/biblio/5461965}, journal = {Physical Review Letters; (USA)},
issn = {0031-9007},
number = ,
volume = 63:12,
place = {United States},
year = {1989},
month = {9}
}