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Title: 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

Abstract

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}.

Authors:
;  [1]; ;  [2]; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [3]
  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)
Publication Date:
OSTI Identifier:
21413205
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 81; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.81.112001; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Briere, R A, Vogel, H, Onyisi, P U. E., Rosner, J L, 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, and Riley, D. 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. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.81.112001.
Briere, R A, Vogel, H, Onyisi, P U. E., Rosner, J L, 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. 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. United States. https://doi.org/10.1103/PHYSREVD.81.112001
Briere, R A, Vogel, H, Onyisi, P U. E., Rosner, J L, 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, and Riley, D. 2010. "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". United States. https://doi.org/10.1103/PHYSREVD.81.112001.
@article{osti_21413205,
title = {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},
author = {Briere, R A and Vogel, H and Onyisi, P U. E. and Rosner, J L and Alexander, J P and Cassel, D G and Das, S and Ehrlich, R and Fields, L and Gibbons, L and Gray, S W and Hartill, D L and Heltsley, B K and Hunt, J M and Kreinick, D L and Kuznetsov, V E and Ledoux, J and Patterson, J R and Peterson, D and Riley, D},
abstractNote = {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}.},
doi = {10.1103/PHYSREVD.81.112001},
url = {https://www.osti.gov/biblio/21413205}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 11,
volume = 81,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 2010},
month = {Tue Jun 01 00:00:00 EDT 2010}
}