Resonant substructure in K sup minus. pi. sup +. pi. sup +. pi. sup minus decays of D sup 0 mesons

Journal Article · Mon May 28 04:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.2615· OSTI ID:7096671

Adler, J; Bai, Z; Blaylock, G T; Bolton, T; Brient, J; Browder, T E; Brown, J S; Bunnell, K O; Burchell, M; Burnett, T H; Cassell, R E; Coffman, D; Cook, V; Coward, D H; DeJongh, F; Dorfan, D E; Drinkard, J; Dubois, G P; Eigen, G; Einsweiler, K F ; Eisenstein, B I; Freese, T; Gatto, C; Gladding, G; Grab, C; Hauser, J; Heusch, C A; Hitlin, D G; Izen, J M; Kim, P C; Koepke, L; Labs, J; Li, A; Lockman, W S; Mallik, U; Matthews, C G; Mincer, A I; Mir, R; Mockett, P M; Nemati, B; Odian, A; Parrish, L; Partridge, R; Pitman, D; Plaetzer, S A; Richman, J D; Sadrozinski, H F.W.; Scarlatella, M; Schalk, T L; Schindler, R H; Seiden, A; Simopoulos, C; Spadafora, A L; Stockdale, I E; Stockhausen, W; Toki, W; Tripsas, B; Villa, F; Wang, M Z; Wasserbaech, S; Wattenberg, A; Weinstein, A J; Weseler, S; Willutzki, H J; Wisinski, D; Wisniewski, W J; Xu, R; Zhu, Y ^[1]

---

1. California Institute of Technology, Pasadena, California 91125 (USA) Univer

We determine the resonant substructure of {ital D}{sup 0}{r arrow}{ital K}{sup {minus}}{pi}{sup +}{pi}{sup +}{pi}{sup {minus}} decays using a five-dimensional maximum-likelihood technique to extract the relative fractions and phases of the amplitudes contributing to this final state. We find that two-body decay modes account for at least 76% of all decays. We obtain branching ratios for several decay modes including {ital B}({ital D}{sup 0}{r arrow}{ital K}{sup {minus}}{ital a}{sub 1}{sup +}) =(9.0{plus minus}0.9{plus minus}1.7)%, {ital B}({ital D}{sup 0}{r arrow}{ital {bar K}} {sup *0}{rho}{sup 0})=(1.9{plus minus}0.3{plus minus}0.7)%, and {ital B}({ital D}{sup 0}{r arrow}{ital K}{sub 1}(1270){sup {minus}}{pi}{sup +}) =(1.8{plus minus}0.5 {plus minus}0.8)%. For the decay mode {ital D}{sup 0}{r arrow}{ital {bar K}} {sup *0}{rho}{sup 0}, the {ital {bar K}} {sup *0} and {rho}{sup 0} are found to be polarized with their spins oriented in the direction of their motion as seen from the {ital D}{sup 0} frame.

• DOE Contract Number: AA03-76SF00034
• OSTI ID: 7096671
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:22; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESONS
D MESONS
D NEUTRAL MESONS
DATA
DATA ANALYSIS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 01-10
HADRONIC PARTICLE DECAY
HADRONS
INFORMATION
INTERACTIONS
KAONS
KAONS MINUS
LEPTON-LEPTON INTERACTIONS
MESONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PIONS
PSEUDOSCALAR MESONS
RESONANCE
STRANGE MESONS
STRANGE PARTICLES