Leptonic decays of the D<inf>s</inf> meson

A. Heister; S. Schael; R. Barate; I. De Bonis; D. Decamp; C. Goy; J. P. Lees; E. Merle; M. N. Minard; B. Pietrzyk; G. Boix; S. Bravo; M. P. Casado; M. Chmeissani; J. M. Crespo; E. Fernandez; M. Fernandez-Bosman; Ll Garrido; E. Graugés; M. Martinez; G. Merino; R. Miquel; Ll M. Mir; A. Pacheco; H. Ruiz; A. Colaleo; D. Creanza; M. De Palma; G. Iaselli; G. Maggi; M. Maggi; S. Nuzzo; A. Ranieri

doi:10.1016/S0370-2693(02)01212-1

Leptonic decays of the D<inf>s</inf> meson

A. Heister, S. Schael, R. Barate, I. De Bonis, D. Decamp, C. Goy, J. P. Lees, E. Merle, M. N. Minard, B. Pietrzyk, G. Boix, S. Bravo, M. P. Casado, M. Chmeissani, J. M. Crespo, E. Fernandez, M. Fernandez-Bosman, Ll Garrido, E. Graugés, M. MartinezG. Merino, R. Miquel, Ll M. Mir, A. Pacheco, H. Ruiz, A. Colaleo, D. Creanza, M. De Palma, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri

Department of Physics

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Abstract

The purely leptonic decays Ds → τv and Ds → μv are studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e- collider from 1991 to 1995. The branching fractions are extracted from a combination of two analyses, one optimized to select Ds → τv decays with τ → evv̄ or μvv̄, and the other optimized for Ds → μv decays. The results are used to evaluate the Ds decay constant, within the Standard Model: fDs = [285 ± 19(stat) ± 40(syst)] MeV. © 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	1-18
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	528
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)01212-1
Publication status	Published - 28 Feb 2002

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Heister, A., Schael, S., Barate, R., De Bonis, I., Decamp, D., Goy, C., Lees, J. P., Merle, E., Minard, M. N., Pietrzyk, B., Boix, G., Bravo, S., Casado, M. P., Chmeissani, M., Crespo, J. M., Fernandez, E., Fernandez-Bosman, M., Garrido, L., Graugés, E., ... Ranieri, A. (2002). Leptonic decays of the D<inf>s</inf> meson. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 528(1-2), 1-18. https://doi.org/10.1016/S0370-2693(02)01212-1

@article{0cc6cf2ca6404db98271822b6d491972,

title = "Leptonic decays of the Ds meson",

abstract = "The purely leptonic decays Ds → τv and Ds → μv are studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e- collider from 1991 to 1995. The branching fractions are extracted from a combination of two analyses, one optimized to select Ds → τv decays with τ → ev{\=v} or μv{\=v}, and the other optimized for Ds → μv decays. The results are used to evaluate the Ds decay constant, within the Standard Model: fDs = [285 ± 19(stat) ± 40(syst)] MeV. {\textcopyright} 2002 Elsevier Science B.V. All rights reserved.",

author = "A. Heister and S. Schael and R. Barate and {De Bonis}, I. and D. Decamp and C. Goy and Lees, {J. P.} and E. Merle and Minard, {M. N.} and B. Pietrzyk and G. Boix and S. Bravo and Casado, {M. P.} and M. Chmeissani and Crespo, {J. M.} and E. Fernandez and M. Fernandez-Bosman and Ll Garrido and E. Graug{\'e}s and M. Martinez and G. Merino and R. Miquel and Mir, {Ll M.} and A. Pacheco and H. Ruiz and A. Colaleo and D. Creanza and {De Palma}, M. and G. Iaselli and G. Maggi and M. Maggi and S. Nuzzo and A. Ranieri",

year = "2002",

month = feb,

day = "28",

doi = "10.1016/S0370-2693(02)01212-1",

language = "English",

volume = "528",

pages = "1--18",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

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Heister, A, Schael, S, Barate, R, De Bonis, I, Decamp, D, Goy, C, Lees, JP, Merle, E, Minard, MN, Pietrzyk, B, Boix, G, Bravo, S, Casado, MP, Chmeissani, M, Crespo, JM , Fernandez, E, Fernandez-Bosman, M, Garrido, L, Graugés, E, Martinez, M, Merino, G, Miquel, R, Mir, LM, Pacheco, A, Ruiz, H, Colaleo, A, Creanza, D, De Palma, M, Iaselli, G, Maggi, G, Maggi, M, Nuzzo, S & Ranieri, A 2002, 'Leptonic decays of the D<inf>s</inf> meson', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 528, no. 1-2, pp. 1-18. https://doi.org/10.1016/S0370-2693(02)01212-1

TY - JOUR

T1 - Leptonic decays of the Ds meson

AU - Heister, A.

AU - Schael, S.

AU - Barate, R.

AU - De Bonis, I.

AU - Decamp, D.

AU - Goy, C.

AU - Lees, J. P.

AU - Merle, E.

AU - Minard, M. N.

AU - Pietrzyk, B.

AU - Boix, G.

AU - Bravo, S.

AU - Casado, M. P.

AU - Chmeissani, M.

AU - Crespo, J. M.

AU - Fernandez, E.

AU - Fernandez-Bosman, M.

AU - Garrido, Ll

AU - Graugés, E.

AU - Martinez, M.

AU - Merino, G.

AU - Miquel, R.

AU - Mir, Ll M.

AU - Pacheco, A.

AU - Ruiz, H.

AU - Colaleo, A.

AU - Creanza, D.

AU - De Palma, M.

AU - Iaselli, G.

AU - Maggi, G.

AU - Maggi, M.

AU - Nuzzo, S.

AU - Ranieri, A.

PY - 2002/2/28

Y1 - 2002/2/28

N2 - The purely leptonic decays Ds → τv and Ds → μv are studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e- collider from 1991 to 1995. The branching fractions are extracted from a combination of two analyses, one optimized to select Ds → τv decays with τ → evv̄ or μvv̄, and the other optimized for Ds → μv decays. The results are used to evaluate the Ds decay constant, within the Standard Model: fDs = [285 ± 19(stat) ± 40(syst)] MeV. © 2002 Elsevier Science B.V. All rights reserved.

AB - The purely leptonic decays Ds → τv and Ds → μv are studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e- collider from 1991 to 1995. The branching fractions are extracted from a combination of two analyses, one optimized to select Ds → τv decays with τ → evv̄ or μvv̄, and the other optimized for Ds → μv decays. The results are used to evaluate the Ds decay constant, within the Standard Model: fDs = [285 ± 19(stat) ± 40(syst)] MeV. © 2002 Elsevier Science B.V. All rights reserved.

U2 - 10.1016/S0370-2693(02)01212-1

DO - 10.1016/S0370-2693(02)01212-1

M3 - Article

SN - 0370-2693

VL - 528

SP - 1

EP - 18

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Leptonic decays of the D<inf>s</inf> meson

Abstract

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