Analysis of D{sup +{yields}}K{sup -{pi}+}e{sup +{nu}}{sub e} and D{sup +{yields}}K{sup -{pi}+{mu}+}+{nu}{sub {mu}}semileptonic decays

Journal Article · Tue Jun 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.112001· OSTI ID:21413205

Briere, R A; Vogel, H ^[1]; Onyisi, P U. E.; Rosner, J L ^[2]; Alexander, J P; Cassel, D G; Das, S; Ehrlich, R; Fields, L; Gibbons, L; Gray, S W; Hartill, D L; Heltsley, B K; Hunt, J M; Kreinick, D L; Kuznetsov, V E; Ledoux, J; Patterson, J R; Peterson, D; Riley, D ^[3]

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1. Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)
2. University of Chicago, Chicago, Illinois 60637 (United States)
3. Cornell University, Ithaca, New York 14853 (United States)

Using a large sample ({approx_equal}11800 events) of D{sup +{yields}}K{sup -{pi}+}e{sup +{nu}}{sub e} and D{sup +{yields}}K{sup -{pi}+{mu}+{nu}}{sub {mu}}decays collected by the CLEO-c detector running at the {psi}(3770), we measure the helicity basis form factors free from the assumptions of spectroscopic pole dominance and provide new, accurate measurements of the absolute branching fractions for D{sup +{yields}}K*{sup 0}e{sup +{nu}}{sub e} and D{sup +{yields}}K*{sup 0{mu}+{nu}}{sub {mu}}decays. We find branching fractions which are consistent with previous world averages. Our measured helicity basis form factors are consistent with the spectroscopic pole dominance predictions for the three main helicity basis form factors describing D{sup +{yields}}K*{sup 0}l{sup +{nu}}{sub l} decay. The ability to analyze D{sup +{yields}}K{sup -{pi}+{mu}+{nu}}{sub {mu}}allows us to make the first nonparametric measurements of the mass-suppressed form factor. Our result is inconsistent with existing lattice QCD calculations. Finally, we measure the form factor that controls nonresonant s-wave interference with the D{sup +{yields}}K*{sup 0}l{sup +{nu}}{sub l} amplitude and search for evidence of possible additional nonresonant d- or f-wave interference with the K*{sup 0}.

• OSTI ID: 21413205
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 11; Other Information: DOI: 10.1103/PhysRevD.81.112001; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CESR STORAGE RING
D PLUS MESONS
ELECTRON NEUTRINOS
F WAVES
FORM FACTORS
INTERFERENCE
KAONS MINUS
MASS
MULTIPARTICLE SPECTROMETERS
MUON NEUTRINOS
MUONS MINUS
MUONS PLUS
PARTICLE IDENTIFICATION
PIONS PLUS
POSITRONS
PSI-3770 MESONS
QUANTUM CHROMODYNAMICS
S WAVES
SEMILEPTONIC DECAY
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BOSONS
CHARM PARTICLES
CHARMED MESONS
CHARMONIUM
D MESONS
DECAY
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
KAONS
LEPTONS
MASSLESS PARTICLES
MATTER
MEASURING INSTRUMENTS
MESONS
MUONS
NEUTRINOS
PARTIAL WAVES
PARTICLE DECAY
PARTICLE PROPERTIES
PIONS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
QUARKONIUM
SPECTROMETERS
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
VECTOR MESONS
WEAK PARTICLE DECAY