Study of the semileptonic decay Ds+→f0(980)e+ν and implications for Bs0→J/ψf0

K. M. Ecklund; Q. He; J. Insler; H. Muramatsu; C. S. Park; E. H. Thorndike; F. Yang; M. Artuso; S. Blusk; S. Khalil; R. Mountain; K. Randrianarivony; T. Skwarnicki; S. Stone; J. C. Wang; L. M. Zhang; G. Bonvicini; D. Cinabro; A. Lincoln; M. J. Smith; P. Zhou; J. Zhu; P. Naik; J. Rademacker; D. M. Asner; K. W. Edwards; J. Reed; A. N. Robichaud; G. Tatishvili; E. J. White; R. A. Briere; H. Vogel; P. U.E. Onyisi; J. L. Rosner; J. P. Alexander; D. G. Cassel; R. Ehrlich; L. Fields; L. Gibbons; S. W. Gray; D. L. Hartill; B. K. Heltsley; J. M. Hunt; D. L. Kreinick; V. E. Kuznetsov; J. Ledoux; H. Mahlke-Krüger; J. R. Patterson; D. Peterson; D. Riley; A. Ryd; A. J. Sadoff; X. Shi; S. Stroiney; W. M. Sun; J. Yelton; P. Rubin; N. Lowrey; S. Mehrabyan; M. Selen; J. Wiss; M. Kornicer; R. E. Mitchell; M. R. Shepherd; C. M. Tarbert; D. Besson; T. K. Pedlar; J. Xavier; D. Cronin-Hennessy; K. Y. Gao; J. Hietala; R. Poling; P. Zweber; S. Dobbs; Z. Metreveli; K. K. Seth; B. J.Y. Tan; A. Tomaradze; S. Brisbane; J. Libby; L. Martin; A. Powell; C. Thomas; G. Wilkinson; H. Mendez; J. Y. Ge; D. H. Miller; I. P.J. Shipsey; B. Xin; G. S. Adams; D. Hu; B. Moziak; J. Napolitano

doi:10.1103/PhysRevD.80.052009

Study of the semileptonic decay Ds+→f0(980)e+ν and implications for Bs0→J/ψf0

K. M. Ecklund, Q. He, J. Insler, H. Muramatsu, C. S. Park, E. H. Thorndike, F. Yang, M. Artuso, S. Blusk, S. Khalil, R. Mountain, K. Randrianarivony, T. Skwarnicki, S. Stone, J. C. Wang, L. M. Zhang, G. Bonvicini, D. Cinabro, A. Lincoln, M. J. SmithP. Zhou, J. Zhu, P. Naik, J. Rademacker, D. M. Asner, K. W. Edwards, J. Reed, A. N. Robichaud, G. Tatishvili, E. J. White, R. A. Briere, H. Vogel, P. U.E. Onyisi, J. L. Rosner, J. P. Alexander, D. G. Cassel, R. Ehrlich, L. Fields, L. Gibbons, S. W. Gray, D. L. Hartill, B. K. Heltsley, J. M. Hunt, D. L. Kreinick, V. E. Kuznetsov, J. Ledoux, H. Mahlke-Krüger, J. R. Patterson, D. Peterson, D. Riley, A. Ryd, A. J. Sadoff, X. Shi, S. Stroiney, W. M. Sun, J. Yelton, P. Rubin, N. Lowrey, S. Mehrabyan, M. Selen, J. Wiss, M. Kornicer, R. E. Mitchell, M. R. Shepherd, C. M. Tarbert, D. Besson, T. K. Pedlar, J. Xavier, D. Cronin-Hennessy, K. Y. Gao, J. Hietala, R. Poling, P. Zweber, S. Dobbs, Z. Metreveli, K. K. Seth, B. J.Y. Tan, A. Tomaradze, S. Brisbane, J. Libby, L. Martin, A. Powell, C. Thomas, G. Wilkinson, H. Mendez, J. Y. Ge, D. H. Miller, I. P.J. Shipsey, B. Xin, G. S. Adams, D. Hu, B. Moziak, J. Napolitano

Department of Physics

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Abstract

Using e+e-→Ds-Ds*+ and Ds*-Ds+ interactions at 4170 MeV collected with the CLEO-c detector, we investigate the semileptonic decays Ds+→f0(980)e+ν and Ds+→e+ν. By examining the decay rates as functions of the four-momentum transfer squared q2, we measure the ratio [dBdq2(Ds+→f0(980)e+ν)B(f0→π+π-)]/[dBdq2(Ds+→e+ν) B(→K+K-)] at q2 of zero to be (42±11)%. This ratio has been predicted to equal the rate ratio [B(Bs→J/ψf0)B(f0→π+π-)]/ [B(Bs→J/ψ)B(→K+K-)], thus indicating that the CP eigenstate J/ψf0 could be useful for measuring CP violation via Bs mixing. Assuming a simple pole model for the form factor |f+(q2)| in the f0e+ν decay, we find a pole mass of (1.7-0.7+4.5±0.2)GeV. We also determine the f0 mass and width as (977-9+11±1) and (91-22+30±3)MeV, respectively. In addition, we present updated results for B(Ds+→f0(980)e+ν) B(f0→π+π-)=(0.20±0.03±0.01)% and B(Ds+→e+ν)=(2. 36±0.23±0.13)%. Assuming that the f0 wave function is a combination of strange and nonstrange quark-antiquark components, we use our measurement for B(Ds+→f0(980)e+ν) to extract a value of the mixing angle that we find consistent with s̄s dominance, adding to the mystery as to why the f0 decays predominantly to two pions rather than two kaons.

Original language	English (US)
Article number	052009
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	80
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.80.052009
State	Published - Sep 23 2009

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.80.052009

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Ecklund, K. M., He, Q., Insler, J., Muramatsu, H., Park, C. S., Thorndike, E. H., Yang, F., Artuso, M., Blusk, S., Khalil, S., Mountain, R., Randrianarivony, K., Skwarnicki, T., Stone, S., Wang, J. C., Zhang, L. M., Bonvicini, G., Cinabro, D., Lincoln, A., ... Napolitano, J. (2009). Study of the semileptonic decay Ds+→f0(980)e+ν and implications for Bs0→J/ψf0. Physical Review D - Particles, Fields, Gravitation and Cosmology, 80(5), Article 052009. https://doi.org/10.1103/PhysRevD.80.052009

Ecklund, KM, He, Q, Insler, J, Muramatsu, H, Park, CS, Thorndike, EH, Yang, F, Artuso, M , Blusk, S, Khalil, S, Mountain, R, Randrianarivony, K, Skwarnicki, T, Stone, S, Wang, JC, Zhang, LM, Bonvicini, G, Cinabro, D, Lincoln, A, Smith, MJ, Zhou, P, Zhu, J, Naik, P, Rademacker, J, Asner, DM, Edwards, KW, Reed, J, Robichaud, AN, Tatishvili, G, White, EJ, Briere, RA, Vogel, H, Onyisi, PUE, Rosner, JL, Alexander, JP, Cassel, DG, Ehrlich, R, Fields, L, Gibbons, L, Gray, SW, Hartill, DL, Heltsley, BK, Hunt, JM, Kreinick, DL, Kuznetsov, VE, Ledoux, J, Mahlke-Krüger, H, Patterson, JR, Peterson, D, Riley, D, Ryd, A, Sadoff, AJ, Shi, X, Stroiney, S, Sun, WM, Yelton, J, Rubin, P, Lowrey, N, Mehrabyan, S, Selen, M, Wiss, J, Kornicer, M, Mitchell, RE, Shepherd, MR, Tarbert, CM, Besson, D, Pedlar, TK, Xavier, J, Cronin-Hennessy, D, Gao, KY, Hietala, J, Poling, R, Zweber, P, Dobbs, S, Metreveli, Z, Seth, KK, Tan, BJY, Tomaradze, A, Brisbane, S, Libby, J, Martin, L, Powell, A, Thomas, C, Wilkinson, G, Mendez, H, Ge, JY, Miller, DH, Shipsey, IPJ, Xin, B, Adams, GS, Hu, D, Moziak, B & Napolitano, J 2009, 'Study of the semileptonic decay Ds+→f0(980)e+ν and implications for Bs0→J/ψf0', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 80, no. 5, 052009. https://doi.org/10.1103/PhysRevD.80.052009

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title = "Study of the semileptonic decay Ds+→f0(980)e+ν and implications for Bs0→J/ψf0",

abstract = "Using e+e-→Ds-Ds*+ and Ds*-Ds+ interactions at 4170 MeV collected with the CLEO-c detector, we investigate the semileptonic decays Ds+→f0(980)e+ν and Ds+→e+ν. By examining the decay rates as functions of the four-momentum transfer squared q2, we measure the ratio [dBdq2(Ds+→f0(980)e+ν)B(f0→π+π-)]/[dBdq2(Ds+→e+ν) B(→K+K-)] at q2 of zero to be (42±11)%. This ratio has been predicted to equal the rate ratio [B(Bs→J/ψf0)B(f0→π+π-)]/ [B(Bs→J/ψ)B(→K+K-)], thus indicating that the CP eigenstate J/ψf0 could be useful for measuring CP violation via Bs mixing. Assuming a simple pole model for the form factor |f+(q2)| in the f0e+ν decay, we find a pole mass of (1.7-0.7+4.5±0.2)GeV. We also determine the f0 mass and width as (977-9+11±1) and (91-22+30±3)MeV, respectively. In addition, we present updated results for B(Ds+→f0(980)e+ν) B(f0→π+π-)=(0.20±0.03±0.01)% and B(Ds+→e+ν)=(2. 36±0.23±0.13)%. Assuming that the f0 wave function is a combination of strange and nonstrange quark-antiquark components, we use our measurement for B(Ds+→f0(980)e+ν) to extract a value of the mixing angle that we find consistent with {\=s}s dominance, adding to the mystery as to why the f0 decays predominantly to two pions rather than two kaons.",

author = "Ecklund, {K. M.} and Q. He and J. Insler and H. Muramatsu and Park, {C. S.} and Thorndike, {E. H.} and F. Yang and M. Artuso and S. Blusk and S. Khalil and R. Mountain and K. Randrianarivony and T. Skwarnicki and S. Stone and Wang, {J. C.} and Zhang, {L. M.} and G. Bonvicini and D. Cinabro and A. Lincoln and Smith, {M. J.} and P. Zhou and J. Zhu and P. Naik and J. Rademacker and Asner, {D. M.} and Edwards, {K. W.} and J. Reed and Robichaud, {A. N.} and G. Tatishvili and White, {E. J.} and Briere, {R. A.} and H. Vogel and Onyisi, {P. U.E.} and Rosner, {J. L.} and Alexander, {J. P.} and Cassel, {D. G.} and R. Ehrlich and L. Fields and L. Gibbons 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 J. Ledoux and H. Mahlke-Kr{\"u}ger and Patterson, {J. R.} and D. Peterson and D. Riley and A. Ryd and Sadoff, {A. J.} and X. Shi and S. Stroiney and Sun, {W. M.} and J. Yelton and P. Rubin and N. Lowrey and S. Mehrabyan and M. Selen and J. Wiss and M. Kornicer and Mitchell, {R. E.} and Shepherd, {M. R.} and Tarbert, {C. M.} and D. Besson and Pedlar, {T. K.} and J. Xavier and D. Cronin-Hennessy and Gao, {K. Y.} and J. Hietala and R. Poling and P. Zweber and S. Dobbs and Z. Metreveli and Seth, {K. K.} and Tan, {B. J.Y.} and A. Tomaradze and S. Brisbane and J. Libby and L. Martin and A. Powell and C. Thomas and G. Wilkinson and H. Mendez and Ge, {J. Y.} and Miller, {D. H.} and Shipsey, {I. P.J.} and B. Xin and Adams, {G. S.} and D. Hu and B. Moziak and J. Napolitano",

year = "2009",

month = sep,

day = "23",

doi = "10.1103/PhysRevD.80.052009",

language = "English (US)",

volume = "80",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Institute of Physics",

number = "5",

}

TY - JOUR

T1 - Study of the semileptonic decay Ds+→f0(980)e+ν and implications for Bs0→J/ψf0

AU - Ecklund, K. M.

AU - He, Q.

AU - Insler, J.

AU - Muramatsu, H.

AU - Park, C. S.

AU - Thorndike, E. H.

AU - Yang, F.

AU - Artuso, M.

AU - Blusk, S.

AU - Khalil, S.

AU - Mountain, R.

AU - Randrianarivony, K.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Wang, J. C.

AU - Zhang, L. M.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Lincoln, A.

AU - Smith, M. J.

AU - Zhou, P.

AU - Zhu, J.

AU - Naik, P.

AU - Rademacker, J.

AU - Asner, D. M.

AU - Edwards, K. W.

AU - Reed, J.

AU - Robichaud, A. N.

AU - Tatishvili, G.

AU - White, E. J.

AU - Briere, R. A.

AU - Vogel, H.

AU - Onyisi, P. U.E.

AU - Rosner, J. L.

AU - Alexander, J. P.

AU - Cassel, D. G.

AU - Ehrlich, R.

AU - Fields, L.

AU - Gibbons, L.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hunt, J. M.

AU - Kreinick, D. L.

AU - Kuznetsov, V. E.

AU - Ledoux, J.

AU - Mahlke-Krüger, H.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Ryd, A.

AU - Sadoff, A. J.

AU - Shi, X.

AU - Stroiney, S.

AU - Sun, W. M.

AU - Yelton, J.

AU - Rubin, P.

AU - Lowrey, N.

AU - Mehrabyan, S.

AU - Selen, M.

AU - Wiss, J.

AU - Kornicer, M.

AU - Mitchell, R. E.

AU - Shepherd, M. R.

AU - Tarbert, C. M.

AU - Besson, D.

AU - Pedlar, T. K.

AU - Xavier, J.

AU - Cronin-Hennessy, D.

AU - Gao, K. Y.

AU - Hietala, J.

AU - Poling, R.

AU - Zweber, P.

AU - Dobbs, S.

AU - Metreveli, Z.

AU - Seth, K. K.

AU - Tan, B. J.Y.

AU - Tomaradze, A.

AU - Brisbane, S.

AU - Libby, J.

AU - Martin, L.

AU - Powell, A.

AU - Thomas, C.

AU - Wilkinson, G.

AU - Mendez, H.

AU - Ge, J. Y.

AU - Miller, D. H.

AU - Shipsey, I. P.J.

AU - Xin, B.

AU - Adams, G. S.

AU - Hu, D.

AU - Moziak, B.

AU - Napolitano, J.

PY - 2009/9/23

Y1 - 2009/9/23

N2 - Using e+e-→Ds-Ds*+ and Ds*-Ds+ interactions at 4170 MeV collected with the CLEO-c detector, we investigate the semileptonic decays Ds+→f0(980)e+ν and Ds+→e+ν. By examining the decay rates as functions of the four-momentum transfer squared q2, we measure the ratio [dBdq2(Ds+→f0(980)e+ν)B(f0→π+π-)]/[dBdq2(Ds+→e+ν) B(→K+K-)] at q2 of zero to be (42±11)%. This ratio has been predicted to equal the rate ratio [B(Bs→J/ψf0)B(f0→π+π-)]/ [B(Bs→J/ψ)B(→K+K-)], thus indicating that the CP eigenstate J/ψf0 could be useful for measuring CP violation via Bs mixing. Assuming a simple pole model for the form factor |f+(q2)| in the f0e+ν decay, we find a pole mass of (1.7-0.7+4.5±0.2)GeV. We also determine the f0 mass and width as (977-9+11±1) and (91-22+30±3)MeV, respectively. In addition, we present updated results for B(Ds+→f0(980)e+ν) B(f0→π+π-)=(0.20±0.03±0.01)% and B(Ds+→e+ν)=(2. 36±0.23±0.13)%. Assuming that the f0 wave function is a combination of strange and nonstrange quark-antiquark components, we use our measurement for B(Ds+→f0(980)e+ν) to extract a value of the mixing angle that we find consistent with s̄s dominance, adding to the mystery as to why the f0 decays predominantly to two pions rather than two kaons.

AB - Using e+e-→Ds-Ds*+ and Ds*-Ds+ interactions at 4170 MeV collected with the CLEO-c detector, we investigate the semileptonic decays Ds+→f0(980)e+ν and Ds+→e+ν. By examining the decay rates as functions of the four-momentum transfer squared q2, we measure the ratio [dBdq2(Ds+→f0(980)e+ν)B(f0→π+π-)]/[dBdq2(Ds+→e+ν) B(→K+K-)] at q2 of zero to be (42±11)%. This ratio has been predicted to equal the rate ratio [B(Bs→J/ψf0)B(f0→π+π-)]/ [B(Bs→J/ψ)B(→K+K-)], thus indicating that the CP eigenstate J/ψf0 could be useful for measuring CP violation via Bs mixing. Assuming a simple pole model for the form factor |f+(q2)| in the f0e+ν decay, we find a pole mass of (1.7-0.7+4.5±0.2)GeV. We also determine the f0 mass and width as (977-9+11±1) and (91-22+30±3)MeV, respectively. In addition, we present updated results for B(Ds+→f0(980)e+ν) B(f0→π+π-)=(0.20±0.03±0.01)% and B(Ds+→e+ν)=(2. 36±0.23±0.13)%. Assuming that the f0 wave function is a combination of strange and nonstrange quark-antiquark components, we use our measurement for B(Ds+→f0(980)e+ν) to extract a value of the mixing angle that we find consistent with s̄s dominance, adding to the mystery as to why the f0 decays predominantly to two pions rather than two kaons.

UR - http://www.scopus.com/inward/record.url?scp=70349762853&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70349762853&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.80.052009

DO - 10.1103/PhysRevD.80.052009

M3 - Article

AN - SCOPUS:70349762853

SN - 1550-7998

VL - 80

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 5

M1 - 052009

ER -

Study of the semileptonic decay Ds+→f0(980)e+ν and implications for Bs0→J/ψf0

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