Measurement of the ratio of the vector to pseudoscalar charm semileptonic decay rate Gamma(D+ ---&gt; anti-K*0 mu+ nu) / Gamma(D+ ---&gt; anti-K0 mu+ nu)

Link, J. M.

doi:10.1016/j.physletb.2004.07.060

Measurement of the ratio of the vector to pseudoscalar charm semileptonic decay rate Gamma(D+ ---> anti-K*0 mu+ nu) / Gamma(D+ ---> anti-K0 mu+ nu)

Journal Article · Tue Jun 01 04:00:00 EDT 2004 · Phys.Lett.B

DOI:https://doi.org/10.1016/j.physletb.2004.07.060· OSTI ID:1893461

Link, J. M.

Using a high statistics sample of photo-produced charm particles from the FOCUS experiment at Fermilab, we report on the measurement of the ratio of semileptonic rates Γ(D+→Kπμ+νμ)/Γ(D+→K¯0μ+νμ)=0.625±0.045±0.034 . Allowing for the Kπ S-wave interference measured in [J.M. Link, et al., FOCUS Collaboration, Phys. Lett. B 544 (2002) 89], we extract the vector to pseudoscalar ratio Γ(D+→K¯*0μ+νμ)/Γ(D+→K¯0μ+νμ)=0.594±0.043±0.033 and the ratio Γ(D+→K¯0μ+νμ)/Γ(D+→K-π+π+)=1.019±0.076±0.065 . Our results show a lower ratio for Γ(D→K*ℓν)/Γ(D→Kℓν) than has been reported recently and indicate the current world average branching fractions for the decays D+→K¯0(μ+,e+)νμ,e are low. Using the world average B(D+→K-π+π+) [K. Hagiwara, et al., Particle Data Group Collaboration, Phys. Rev. D 66 (2002) 010001, and 2003 partial update for edition 2004 ( http://pdg.lbl.gov )] we extract B(D+→K¯0μ+ν)=(9.27±0.69±0.59±0.61)% .

View Journal Article

Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: FOCUS

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1893461

Report Number(s):: FERMILAB-PUB-04-111-E; arXiv:hep-ex/0406060; oai:inspirehep.net:652963

Journal Information:: Phys.Lett.B, Journal Name: Phys.Lett.B Vol. 598

Country of Publication:: United States

Language:: English

References (33)

Exclusive semileptonic decays of heavy mesons in the quark model Melikhov, Dmitri Physics Letters B, Vol. 394, Issue 3-4 https://doi.org/10.1016/S0370-2693(97)00048-8	journal	February 1997
Measurement of the ratio B ( D 0 → K * − e + ν e ) B ( D 0 → K − e + ν e ) Crawford, G.; Fulton, R.; Gan, K. K. Physical Review D, Vol. 44, Issue 11 https://doi.org/10.1103/PhysRevD.44.3394	journal	December 1991
Erratum: Search for CP Violation in the Decays D + → K S π + and D + → K S K + [Phys. Rev. Lett. 88, 041602 (2002)] Link, J. M.; Reyes, M.; Yager, P. M. Physical Review Letters, Vol. 88, Issue 15 https://doi.org/10.1103/PhysRevLett.88.159903	journal	March 2002
Cherenkov particle identification in FOCUS Link, J. M.; Reyes, M.; Yager, P. M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 484, Issue 1-3 https://doi.org/10.1016/S0168-9002(01)01975-1	journal	May 2002
Weak form factors for heavy meson decays: An update Melikhov, D.; Stech, B. Physical Review D, Vol. 62, Issue 1 https://doi.org/10.1103/PhysRevD.62.014006	journal	May 2000
Effective lagrangian for heavy and light mesons. Semileptonic decays Casalbuoni, R.; Deandrea, A.; Di Bartolomeo, N. Physics Letters B, Vol. 299, Issue 1-2 https://doi.org/10.1016/0370-2693(93)90895-O	journal	January 1993
Semileptonic, radiative, and pionic decays of B , B * and D , D * mesons Jaus, Wolfgang Physical Review D, Vol. 53, Issue 3 https://doi.org/10.1103/PhysRevD.53.1349	journal	February 1996
Semileptonic decays of heavy to light mesons from an MIT bag model Sadzikowski, M. Zeitschrift für Physik C Particles and Fields, Vol. 67, Issue 1 https://doi.org/10.1007/BF01564828	journal	March 1995
Heavy to light meson exclusive semileptonic decays in effective field theory of heavy quarks Wang, W. Y.; Wu, Y. L.; Zhong, M. Physical Review D, Vol. 67, Issue 1 https://doi.org/10.1103/PhysRevD.67.014024	journal	January 2003
The QCD sum rule approach for the semileptonic decay of the D or B meson into a light meson and leptons Yang, Kwei-Chou; Hwang, W. -Y. P. Zeitschrift f�r Physik C Particles and Fields, Vol. 73, Issue 2 https://doi.org/10.1007/s002880050316	journal	January 1997
New measurements of the D+→K∗0μ+ν form factor ratios Link, J. M.; Reyes, M.; Yager, P. M. Physics Letters B, Vol. 544, Issue 1-2 https://doi.org/10.1016/S0370-2693(02)02386-9	journal	September 2002
The target silicon detector for the FOCUS spectrometer Link, J. M.; Reyes, M.; Yager, P. M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 516, Issue 2-3 https://doi.org/10.1016/j.nima.2003.08.163	journal	January 2004
Semileptonic meson decays in the quark model: An update Scora, Daryl; Isgur, Nathan Physical Review D, Vol. 52, Issue 5 https://doi.org/10.1103/PhysRevD.52.2783	journal	September 1995
Search for CP Violation in the decays D + → K S π + and D + → K S K + Link, J. M.; Reyes, M.; Yager, P. M. Physical Review Letters, Vol. 88, Issue 4 https://doi.org/10.1103/PhysRevLett.88.041602	journal	January 2002
Evidence for new interference phenomena in the decay D+→K−π+μ+ν Link, J. M.; Reyes, M.; Yager, P. M. Physics Letters B, Vol. 535, Issue 1-4 https://doi.org/10.1016/S0370-2693(02)01715-X	journal	May 2002
Semi-leptonic decays of D-mesons in lattice QCD Lubicz, V.; Martinelli, G.; McCarthy, M. S. Physics Letters B, Vol. 274, Issue 3-4 https://doi.org/10.1016/0370-2693(92)92008-5	journal	January 1992
Erratum: Semileptonic, radiative, and pionic decays of B , B * and D , D * mesons Jaus, Wolfgang Physical Review D, Vol. 54, Issue 9 https://doi.org/10.1103/PhysRevD.54.5904.2	journal	November 1996
Semileptonic decays of B and D mesons in the light-front formalism Jaus, W. Physical Review D, Vol. 41, Issue 11 https://doi.org/10.1103/PhysRevD.41.3394	journal	June 1990
Study of the semileptonic decay mode D 0 → K − e + ν e Anjos, J. C.; Appel, J. A.; Bean, A. Physical Review Letters, Vol. 62, Issue 14 https://doi.org/10.1103/PhysRevLett.62.1587	journal	April 1989
Review of Particle Properties Hagiwara, K.; Hikasa, K.; Nakamura, K. Physical Review D, Vol. 66, Issue 1 https://doi.org/10.1103/PhysRevD.66.010001	journal	July 2002
Study of D0 → K− μ+ ν in high energy photoproduction Frabetti, P. L.; Bogart, C. W.; Cheung, H. W. K. Physics Letters B, Vol. 315, Issue 1-2 https://doi.org/10.1016/0370-2693(93)90181-G	journal	September 1993
Description and performance of the Fermilab E687 spectrometer Frabetti, P. L.; Giordano, V.; Molinari, G. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 320, Issue 3 https://doi.org/10.1016/0168-9002(92)90948-4	journal	September 1992
Analysis of the decay mode D0 → K−μ+νμ Frabetti, P. L.; Cheung, H. W. K.; Cumalat, J. P. Physics Letters B, Vol. 364, Issue 2 https://doi.org/10.1016/0370-2693(95)01368-2	journal	December 1995
Semi-leptonic decays of heavy flavours on a fine grained lattice Abada, As.; Allton, C. R.; Boucaud, Ph. Nuclear Physics B, Vol. 416, Issue 2 https://doi.org/10.1016/0550-3213(94)90327-1	journal	March 1994
Measurement ofB(D+→K¯*0l+νl) Brandenburg, G.; Ershov, A.; Kim, D. Y. -J. Physical Review Letters, Vol. 89, Issue 22 https://doi.org/10.1103/PhysRevLett.89.222001	journal	November 2002
A wide band photon beam at the Fermilab Tevatron to study heavy flavors Frabetti, P. L.; Bogart, C. W.; Cumalat, J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 329, Issue 1-2 https://doi.org/10.1016/0168-9002(93)90923-6	journal	May 1993
Transition form factors and probabilities of the semileptonic decays of B and D mesons within covariant light-front dynamics Kondratyuk, L. A.; Tchekin, D. V. Physics of Atomic Nuclei, Vol. 64, Issue 4 https://doi.org/10.1134/1.1368227	journal	April 2001
New measurements of the and branching ratios Link, J. M.; Reyes, M.; Yager, P. M. Physics Letters B, Vol. 541, Issue 3-4 https://doi.org/10.1016/S0370-2693(02)02272-4	journal	August 2002
Form factors of semileptonic D decays from QCD sum rules Ball, Patricia; Braun, V. M.; Dosch, H. G. Physical Review D, Vol. 44, Issue 11 https://doi.org/10.1103/PhysRevD.44.3567	journal	December 1991
Exclusive semileptonic decays of heavy mesons Wirbel, M.; Stech, B.; Bauer, M. Zeitschrift für Physik C Particles and Fields, Vol. 29, Issue 4 https://doi.org/10.1007/BF01560299	journal	December 1985
Relativistic description of exclusive semileptonic decays of heavy mesons Faustov, R. N.; Galkin, V. O.; Mishurov, A. Yu. Physical Review D, Vol. 53, Issue 3 https://doi.org/10.1103/PhysRevD.53.1391	journal	February 1996
Pole contributions in semileptonic decays of D mesons Nasriddinov, K. R.; Kuranov, B. N.; Takhtamyshev, G. G. Physics of Atomic Nuclei, Vol. 64, Issue 7 https://doi.org/10.1134/1.1389560	journal	July 2001
Measurements of exclusive semileptonic decays of D mesons Bean, A.; Gronberg, J.; Kutschke, R. Physics Letters B, Vol. 317, Issue 4 https://doi.org/10.1016/0370-2693(93)91385-Z	journal	November 1993

Similar Records

Branching ratios of the decays D0 ---> anti-K0 K0 and D0 ---> K0(s) K0(s) K0(s)

Journal Article · Mon Aug 01 00:00:00 EDT 1994 · Phys.Lett.B · OSTI ID:1864237

New Measurements of the $\frac{\Gamma(D^+ \to \bar{K}^{*0} \mu^+ \nu)} {\Gamma(D^+ \to K^- \pi^+ \pi^+)}$ and $\frac{\Gamma(D^+_s \to \phi \mu^+ \nu)} {\Gamma(D^+_s \to \phi \pi^+)}$ Branching Ratios

Journal Article · Sat Jun 01 00:00:00 EDT 2002 · Phys.Lett.B · OSTI ID:1892204

Analysis of the decay mode D+ ---> anti-K*0 mu+ neutrino

Journal Article · Wed Mar 31 23:00:00 EST 1993 · Phys.Lett.B · OSTI ID:1893376

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Measurement of the ratio of the vector to pseudoscalar charm semileptonic decay rate Gamma(D+ ---> anti-K*0 mu+ nu) / Gamma(D+ ---> anti-K0 mu+ nu)

Citation Formats

References (33)

Similar Records

Related Subjects