A measurement of lifetime differences in the neutral D-meson system

J. M. Link; V. S. Paolone; M. Reyes; P. M. Yager; J. C. Anjos; I. Bediaga; C. Göbel; J. Magnin; J. M. de Miranda; I. M. Pepe; A. C. dos Reis; F. R.A. Simão; M. A. Vale; S. Carrillo; E. Casimiro; H. Mendez; A. Sánchez-Hernández; C. Uribe; F. Vazquez; L. Cinquini; J. P. Cumalat; J. E. Ramirez; B. O'Reilly; E. W. Vaandering; J. N. Butler; H. W.K. Cheung; I. Gaines; P. H. Garbincius; L. A. Garren; E. Gottschalk; S. A. Gourlay; P. H. Kasper; A. E. Kreymer; R. Kutschke; S. Bianco; F. L. Fabbri; S. Sarwar; A. Zallo; C. Cawlfield; D. Y. Kim; K. S. Park; A. Rahimi; J. Wiss; R. Gardner; Y. S. Chung; J. S. Kang; B. R. Ko; J. W. Kwak; K. B. Lee; S. S. Myung; H. Park; G. Alimonti; M. Boschini; D. Brambilla; B. Caccianiga; A. Calandrino; P. D'Angelo; M. Di Corato; P. Dini; M. Giammarchi; P. Inzani; F. Leveraro; S. Malvezzi; D. Menasce; M. Mezzadri; L. Milazzo; L. Moroni; D. Pedrini; F. Prelz; M. Rovere; A. Sala; S. Sala; T. F. Davenport; V. Arena; G. Boca; G. Bonomi; G. Gianini; G. Liguori; M. Merlo; D. Pantea; S. P. Ratti; C. Riccardi; P. Torre; L. Viola; P. Vitulo; H. Hernandez; A. M. Lopez; L. Mendez; A. Mirles; E. Montiel; D. Olaya; J. Quinones; C. Rivera; Y. Zhang; N. Copty; M. Purohit; J. R. Wilson; K. Cho; T. Handler; D. Engh; W. E. Johns; M. Hosack; M. S. Nehring; M. Sales; P. D. Sheldon; K. Stenson; M. S. Webster; M. Sheaff; Y. J. Kwon

doi:10.1016/S0370-2693(00)00694-8

A measurement of lifetime differences in the neutral D-meson system

J. M. Link, V. S. Paolone, M. Reyes, P. M. Yager, J. C. Anjos, I. Bediaga, C. Göbel, J. Magnin, J. M. de Miranda, I. M. Pepe, A. C. dos Reis, F. R.A. Simão, M. A. Vale, S. Carrillo, E. Casimiro, H. Mendez, A. Sánchez-Hernández, C. Uribe, F. Vazquez, L. CinquiniJ. P. Cumalat, J. E. Ramirez, B. O'Reilly, E. W. Vaandering, J. N. Butler, H. W.K. Cheung, I. Gaines, P. H. Garbincius, L. A. Garren, E. Gottschalk, S. A. Gourlay, P. H. Kasper, A. E. Kreymer, R. Kutschke, S. Bianco, F. L. Fabbri, S. Sarwar, A. Zallo, C. Cawlfield, D. Y. Kim, K. S. Park, A. Rahimi, J. Wiss, R. Gardner, Y. S. Chung, J. S. Kang, B. R. Ko, J. W. Kwak, K. B. Lee, S. S. Myung, H. Park, G. Alimonti, M. Boschini, D. Brambilla, B. Caccianiga, A. Calandrino, P. D'Angelo, M. Di Corato, P. Dini, M. Giammarchi, P. Inzani, F. Leveraro, S. Malvezzi, D. Menasce, M. Mezzadri, L. Milazzo, L. Moroni, D. Pedrini, F. Prelz, M. Rovere, A. Sala, S. Sala, T. F. Davenport, V. Arena, G. Boca, G. Bonomi, G. Gianini, G. Liguori, M. Merlo, D. Pantea, S. P. Ratti, C. Riccardi, P. Torre, L. Viola, P. Vitulo, H. Hernandez, A. M. Lopez, L. Mendez, A. Mirles, E. Montiel, D. Olaya, J. Quinones, C. Rivera, Y. Zhang, N. Copty, M. Purohit, J. R. Wilson, K. Cho, T. Handler, D. Engh, W. E. Johns, M. Hosack, M. S. Nehring, M. Sales, P. D. Sheldon, K. Stenson, M. S. Webster, M. Sheaff, Y. J. Kwon

Department of Physics

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Abstract

Using a high statistics sample of photoproduced charm particles from the FOCUS experiment at Fermilab, we compare the lifetimes of neutral D mesons decaying via D⁰ → K^- π⁺ and K^-K⁺ to measure the lifetime differences between CP even and CP odd final states. These measurements bear on the phenomenology of D⁰ -D̄⁰ mixing. If the D⁰ → K^- π⁺ is an equal mixture of CP even and CP odd eigenstates, we measure y(CP) = (Γ(CP even) - Λ(CP odd))/(Λ(CP even)+ Λ(CP odd)) = 0.0342 ± 0.0139 ± 0.0074. (C) 2000 Elsevier Science B.V.

Original language	English
Pages (from-to)	62-70
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	485
Issue number	1-3
DOIs	https://doi.org/10.1016/S0370-2693(00)00694-8
Publication status	Published - 2000 Jul 13

Bibliographical note

Funding Information:
We wish to acknowledge the assistance of the staffs of Fermi National Accelerator Laboratory, the INFN of Italy, and the physics departments of the collaborating institutions. This research was supported in part by the U.S. National Science Foundation, the U.S. Department of Energy, the Italian Istituto Nazionale di Fisica Nucleare and Ministero dell'Università e della Ricerca Scientifica e Tecnologica, the Brazilian Conselho Nacional de Desenvolvimento Cientı́fico e Tecnológico, CONACyT-México, the Korean Ministry of Education, and the Korean Science and Engineering Foundation.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(00)00694-8

Cite this

Link, J. M., Paolone, V. S., Reyes, M., Yager, P. M., Anjos, J. C., Bediaga, I., Göbel, C., Magnin, J., de Miranda, J. M., Pepe, I. M., dos Reis, A. C., Simão, F. R. A., Vale, M. A., Carrillo, S., Casimiro, E., Mendez, H., Sánchez-Hernández, A., Uribe, C., Vazquez, F., ... Kwon, Y. J. (2000). A measurement of lifetime differences in the neutral D-meson system. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 485(1-3), 62-70. https://doi.org/10.1016/S0370-2693(00)00694-8

@article{22463c1ebd5e4c559746e1d8f0a93676,

title = "A measurement of lifetime differences in the neutral D-meson system",

abstract = "Using a high statistics sample of photoproduced charm particles from the FOCUS experiment at Fermilab, we compare the lifetimes of neutral D mesons decaying via D0 → K- π+ and K-K+ to measure the lifetime differences between CP even and CP odd final states. These measurements bear on the phenomenology of D0 -{\=D}0 mixing. If the D0 → K- π+ is an equal mixture of CP even and CP odd eigenstates, we measure y(CP) = (Γ(CP even) - Λ(CP odd))/(Λ(CP even)+ Λ(CP odd)) = 0.0342 ± 0.0139 ± 0.0074. (C) 2000 Elsevier Science B.V.",

author = "Link, {J. M.} and Paolone, {V. S.} and M. Reyes and Yager, {P. M.} and Anjos, {J. C.} and I. Bediaga and C. G{\"o}bel and J. Magnin and {de Miranda}, {J. M.} and Pepe, {I. M.} and {dos Reis}, {A. C.} and Sim{\~a}o, {F. R.A.} and Vale, {M. A.} and S. Carrillo and E. Casimiro and H. Mendez and A. S{\'a}nchez-Hern{\'a}ndez and C. Uribe and F. Vazquez and L. Cinquini and Cumalat, {J. P.} and Ramirez, {J. E.} and B. O'Reilly and Vaandering, {E. W.} and Butler, {J. N.} and Cheung, {H. W.K.} and I. Gaines and Garbincius, {P. H.} and Garren, {L. A.} and E. Gottschalk and Gourlay, {S. A.} and Kasper, {P. H.} and Kreymer, {A. E.} and R. Kutschke and S. Bianco and Fabbri, {F. L.} and S. Sarwar and A. Zallo and C. Cawlfield and Kim, {D. Y.} and Park, {K. S.} and A. Rahimi and J. Wiss and R. Gardner and Chung, {Y. S.} and Kang, {J. S.} and Ko, {B. R.} and Kwak, {J. W.} and Lee, {K. B.} and Myung, {S. S.} and H. Park and G. Alimonti and M. Boschini and D. Brambilla and B. Caccianiga and A. Calandrino and P. D'Angelo and {Di Corato}, M. and P. Dini and M. Giammarchi and P. Inzani and F. Leveraro and S. Malvezzi and D. Menasce and M. Mezzadri and L. Milazzo and L. Moroni and D. Pedrini and F. Prelz and M. Rovere and A. Sala and S. Sala and Davenport, {T. F.} and V. Arena and G. Boca and G. Bonomi and G. Gianini and G. Liguori and M. Merlo and D. Pantea and Ratti, {S. P.} and C. Riccardi and P. Torre and L. Viola and P. Vitulo and H. Hernandez and Lopez, {A. M.} and L. Mendez and A. Mirles and E. Montiel and D. Olaya and J. Quinones and C. Rivera and Y. Zhang and N. Copty and M. Purohit and Wilson, {J. R.} and K. Cho and T. Handler and D. Engh and Johns, {W. E.} and M. Hosack and Nehring, {M. S.} and M. Sales and Sheldon, {P. D.} and K. Stenson and Webster, {M. S.} and M. Sheaff and Kwon, {Y. J.}",

note = "Funding Information: We wish to acknowledge the assistance of the staffs of Fermi National Accelerator Laboratory, the INFN of Italy, and the physics departments of the collaborating institutions. This research was supported in part by the U.S. National Science Foundation, the U.S. Department of Energy, the Italian Istituto Nazionale di Fisica Nucleare and Ministero dell'Universit{\`a} e della Ricerca Scientifica e Tecnologica, the Brazilian Conselho Nacional de Desenvolvimento Cient{\'ı}fico e Tecnol{\'o}gico, CONACyT-M{\'e}xico, the Korean Ministry of Education, and the Korean Science and Engineering Foundation.",

year = "2000",

month = jul,

day = "13",

doi = "10.1016/S0370-2693(00)00694-8",

language = "English",

volume = "485",

pages = "62--70",

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

issn = "0370-2693",

publisher = "Elsevier",

number = "1-3",

}

Link, JM, Paolone, VS, Reyes, M, Yager, PM, Anjos, JC, Bediaga, I, Göbel, C, Magnin, J, de Miranda, JM, Pepe, IM, dos Reis, AC, Simão, FRA, Vale, MA, Carrillo, S, Casimiro, E, Mendez, H, Sánchez-Hernández, A, Uribe, C, Vazquez, F, Cinquini, L, Cumalat, JP, Ramirez, JE, O'Reilly, B, Vaandering, EW, Butler, JN, Cheung, HWK, Gaines, I, Garbincius, PH, Garren, LA, Gottschalk, E, Gourlay, SA, Kasper, PH, Kreymer, AE, Kutschke, R, Bianco, S, Fabbri, FL, Sarwar, S, Zallo, A, Cawlfield, C, Kim, DY, Park, KS, Rahimi, A, Wiss, J, Gardner, R, Chung, YS, Kang, JS, Ko, BR, Kwak, JW, Lee, KB, Myung, SS, Park, H, Alimonti, G, Boschini, M, Brambilla, D, Caccianiga, B, Calandrino, A, D'Angelo, P, Di Corato, M, Dini, P, Giammarchi, M, Inzani, P, Leveraro, F, Malvezzi, S, Menasce, D, Mezzadri, M, Milazzo, L, Moroni, L, Pedrini, D, Prelz, F, Rovere, M, Sala, A, Sala, S, Davenport, TF, Arena, V, Boca, G, Bonomi, G, Gianini, G, Liguori, G, Merlo, M, Pantea, D, Ratti, SP, Riccardi, C, Torre, P, Viola, L, Vitulo, P, Hernandez, H, Lopez, AM, Mendez, L, Mirles, A, Montiel, E, Olaya, D, Quinones, J, Rivera, C, Zhang, Y, Copty, N, Purohit, M, Wilson, JR, Cho, K, Handler, T, Engh, D, Johns, WE, Hosack, M, Nehring, MS, Sales, M, Sheldon, PD, Stenson, K, Webster, MS, Sheaff, M & Kwon, YJ 2000, 'A measurement of lifetime differences in the neutral D-meson system', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 485, no. 1-3, pp. 62-70. https://doi.org/10.1016/S0370-2693(00)00694-8

TY - JOUR

T1 - A measurement of lifetime differences in the neutral D-meson system

AU - Link, J. M.

AU - Paolone, V. S.

AU - Reyes, M.

AU - Yager, P. M.

AU - Anjos, J. C.

AU - Bediaga, I.

AU - Göbel, C.

AU - Magnin, J.

AU - de Miranda, J. M.

AU - Pepe, I. M.

AU - dos Reis, A. C.

AU - Simão, F. R.A.

AU - Vale, M. A.

AU - Carrillo, S.

AU - Casimiro, E.

AU - Mendez, H.

AU - Sánchez-Hernández, A.

AU - Uribe, C.

AU - Vazquez, F.

AU - Cinquini, L.

AU - Cumalat, J. P.

AU - Ramirez, J. E.

AU - O'Reilly, B.

AU - Vaandering, E. W.

AU - Butler, J. N.

AU - Cheung, H. W.K.

AU - Gaines, I.

AU - Garbincius, P. H.

AU - Garren, L. A.

AU - Gottschalk, E.

AU - Gourlay, S. A.

AU - Kasper, P. H.

AU - Kreymer, A. E.

AU - Kutschke, R.

AU - Bianco, S.

AU - Fabbri, F. L.

AU - Sarwar, S.

AU - Zallo, A.

AU - Cawlfield, C.

AU - Kim, D. Y.

AU - Park, K. S.

AU - Rahimi, A.

AU - Wiss, J.

AU - Gardner, R.

AU - Chung, Y. S.

AU - Kang, J. S.

AU - Ko, B. R.

AU - Kwak, J. W.

AU - Lee, K. B.

AU - Myung, S. S.

AU - Park, H.

AU - Alimonti, G.

AU - Boschini, M.

AU - Brambilla, D.

AU - Caccianiga, B.

AU - Calandrino, A.

AU - D'Angelo, P.

AU - Di Corato, M.

AU - Dini, P.

AU - Giammarchi, M.

AU - Inzani, P.

AU - Leveraro, F.

AU - Malvezzi, S.

AU - Menasce, D.

AU - Mezzadri, M.

AU - Milazzo, L.

AU - Moroni, L.

AU - Pedrini, D.

AU - Prelz, F.

AU - Rovere, M.

AU - Sala, A.

AU - Sala, S.

AU - Davenport, T. F.

AU - Arena, V.

AU - Boca, G.

AU - Bonomi, G.

AU - Gianini, G.

AU - Liguori, G.

AU - Merlo, M.

AU - Pantea, D.

AU - Ratti, S. P.

AU - Riccardi, C.

AU - Torre, P.

AU - Viola, L.

AU - Vitulo, P.

AU - Hernandez, H.

AU - Lopez, A. M.

AU - Mendez, L.

AU - Mirles, A.

AU - Montiel, E.

AU - Olaya, D.

AU - Quinones, J.

AU - Rivera, C.

AU - Zhang, Y.

AU - Copty, N.

AU - Purohit, M.

AU - Wilson, J. R.

AU - Cho, K.

AU - Handler, T.

AU - Engh, D.

AU - Johns, W. E.

AU - Hosack, M.

AU - Nehring, M. S.

AU - Sales, M.

AU - Sheldon, P. D.

AU - Stenson, K.

AU - Webster, M. S.

AU - Sheaff, M.

AU - Kwon, Y. J.

N1 - Funding Information: We wish to acknowledge the assistance of the staffs of Fermi National Accelerator Laboratory, the INFN of Italy, and the physics departments of the collaborating institutions. This research was supported in part by the U.S. National Science Foundation, the U.S. Department of Energy, the Italian Istituto Nazionale di Fisica Nucleare and Ministero dell'Università e della Ricerca Scientifica e Tecnologica, the Brazilian Conselho Nacional de Desenvolvimento Cientı́fico e Tecnológico, CONACyT-México, the Korean Ministry of Education, and the Korean Science and Engineering Foundation.

PY - 2000/7/13

Y1 - 2000/7/13

N2 - Using a high statistics sample of photoproduced charm particles from the FOCUS experiment at Fermilab, we compare the lifetimes of neutral D mesons decaying via D0 → K- π+ and K-K+ to measure the lifetime differences between CP even and CP odd final states. These measurements bear on the phenomenology of D0 -D̄0 mixing. If the D0 → K- π+ is an equal mixture of CP even and CP odd eigenstates, we measure y(CP) = (Γ(CP even) - Λ(CP odd))/(Λ(CP even)+ Λ(CP odd)) = 0.0342 ± 0.0139 ± 0.0074. (C) 2000 Elsevier Science B.V.

AB - Using a high statistics sample of photoproduced charm particles from the FOCUS experiment at Fermilab, we compare the lifetimes of neutral D mesons decaying via D0 → K- π+ and K-K+ to measure the lifetime differences between CP even and CP odd final states. These measurements bear on the phenomenology of D0 -D̄0 mixing. If the D0 → K- π+ is an equal mixture of CP even and CP odd eigenstates, we measure y(CP) = (Γ(CP even) - Λ(CP odd))/(Λ(CP even)+ Λ(CP odd)) = 0.0342 ± 0.0139 ± 0.0074. (C) 2000 Elsevier Science B.V.

UR - http://www.scopus.com/inward/record.url?scp=0002010901&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0002010901&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(00)00694-8

DO - 10.1016/S0370-2693(00)00694-8

M3 - Article

AN - SCOPUS:0002010901

SN - 0370-2693

VL - 485

SP - 62

EP - 70

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 - 1-3

ER -

A measurement of lifetime differences in the neutral D-meson system

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