Measurement of the decay asymmetry parameters in 5"-H IT+

S. Chan; G. Eigen; E. Lipeles; J. S. Miller; M. Schmidtler; A. Shapiro; W. M. Sun; J. Urheim; A. J. Weinstein; F. Würthwein; D. E. Jaffe; G. Masek; H. P. Paar; E. M. Potter; S. Prell; V. Sharma; D. M. Asner; A. Eppich; J. Gronberg; T. S. Hill; D. J. Lange; R. J. Morrison; H. N. Nelson; T. K. Nelson; D. Roberts; B. H. Behrens; W. T. Ford; A. Gritsan; H. Krieg; J. Roy; J. G. Smith; J. P. Alexander; R. Baker; C. Bebek; B. E. Berger; K. Berkelman; V. Boisvert; D. G. Cassel; D. S. Crowcroft; M. Dickson; S. von Dombrowski; P. S. Drell; K. M. Ecklund; R. Ehrlich; A. D. Foland; P. Gaidarev; L. Gibbons; B. Gittelman; S. W. Gray; D. L. Hartill; B. K. Heltsley; P. I. Hopman; D. L. Kreinick; T. Lee; Y. Liu; N. B. Mistry; C. R. Ng; E. Nordberg; M. Ogg; J. R. Patterson; D. Peterson; D. Riley; A. Soffer; B. Valant-Spaight; A. Warburton; C. Ward; M. Athanas; P. Avery; C. D. Jones; M. Lohner; C. Prescott; A. I. Rubiera; J. Yelton; J. Zheng; G. Brandenburg; R. A. Briere; A. Ershov; Y. S. Gao; D. Y.J. Kim; R. Wilson; T. E. Browder; Y. Li; J. L. Rodriguez; H. Yamamoto; T. Bergfeld; B. I. Eisenstein; J. Ernst; G. E. Gladding; G. D. Gollin; R. M. Hans; E. Johnson; I. Karliner; M. A. Marsh; M. Palmer; M. Selen; J. J. Thaler; K. W. Edwards; A. Bellerive; R. Janicek; P. M. Patel; A. J. Sadoff; R. Ammar; P. Baringer; A. Bean; D. Besson; D. Coppage; R. Davis; S. Kotov; I. Kravchenko; N. Kwak; L. Zhou; S. Anderson; Y. Kubota; S. J. Lee; R. Mahapatra; J. J. O’Neill; R. Poling; T. Riehle; A. Smith; M. S. Alam; S. B. Athar; Z. Ling; A. H. Mahmood; S. Timm; F. Wappler; A. Anastassov; J. E. Duboscq; K. K. Gan; C. Gwon; T. Hart; K. Honscheid; H. Kagan; R. Kass; J. Lee; J. Lorenc; H. Schwarthoff; A. Wolf; M. M. Zoeller; S. J. Richichi; H. Severini; P. Skubic; A. Undrus; M. Bishai; S. Chen; J. Fast; J. W. Hinson; N. Menon; D. H. Miller; E. I. Shibata; I. P. Shipsey; S. Glenn; Y. Kwon; A. L. Lyon; S. Roberts; E. H. Thorndike; C. P. Jessop; K. Lingel; H. Marsiske; M. L. Perl; V. Savinov; D. Ugolini; X. Zhou; T. E. Coan; V. Fadeyev; I. Korolkov; Y. Maravin; I. Narsky; R. Stroynowski; J. Ye; T. Wlodek; M. Artuso; E. Dambasuren; S. Kopp; G. C. Moneti; R. Mountain; S. Schuh; T. Skwarnicki; S. Stone; A. Titov; G. Viehhauser; J. C. Wang; S. E. Csorna; K. W. McLean; S. Marka; Z. Xu; R. Godang; K. Kinoshita; I. C. Lai; P. Pomianowski; S. Schrenk; G. Bonvicini; D. Cinabro; R. Greene; L. P. Perera; G. J. Zhou

doi:10.1103/PhysRevD.63.111102

Measurement of the decay asymmetry parameters in 5"-H IT+

S. Chan
, G. Eigen
, E. Lipeles
, J. S. Miller
, M. Schmidtler
, A. Shapiro
, W. M. Sun
, J. Urheim
, A. J. Weinstein
, F. Würthwein
, D. E. Jaffe
, G. Masek
, H. P. Paar
, E. M. Potter
, S. Prell
, V. Sharma
, D. M. Asner
, A. Eppich
, J. Gronberg
, T. S. Hill

D. J. Lange, R. J. Morrison, H. N. Nelson, T. K. Nelson, D. Roberts, B. H. Behrens, W. T. Ford, A. Gritsan, H. Krieg, J. Roy, J. G. Smith, J. P. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, V. Boisvert, D. G. Cassel, D. S. Crowcroft, M. Dickson, S. von Dombrowski, P. S. Drell, K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, D. L. Kreinick, T. Lee, Y. Liu, N. B. Mistry, C. R. Ng, E. Nordberg, M. Ogg, J. R. Patterson, D. Peterson, D. Riley, A. Soffer, B. Valant-Spaight, A. Warburton, C. Ward, M. Athanas, P. Avery, C. D. Jones, M. Lohner, C. Prescott, A. I. Rubiera, J. Yelton, J. Zheng, G. Brandenburg, R. A. Briere, A. Ershov, Y. S. Gao, D. Y.J. Kim, R. Wilson, T. E. Browder, Y. Li, J. L. Rodriguez, H. Yamamoto, T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, A. Bellerive, R. Janicek, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, R. Davis, S. Kotov, I. Kravchenko, N. Kwak, L. Zhou, S. Anderson, Y. Kubota, S. J. Lee, R. Mahapatra, J. J. O’Neill, R. Poling, T. Riehle, A. Smith, M. S. Alam, S. B. Athar, Z. Ling, A. H. Mahmood, S. Timm, F. Wappler, A. Anastassov, J. E. Duboscq, K. K. Gan, C. Gwon, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lee, J. Lorenc, H. Schwarthoff, A. Wolf, M. M. Zoeller, S. J. Richichi, H. Severini, P. Skubic, A. Undrus, M. Bishai, S. Chen, J. Fast, J. W. Hinson, N. Menon, D. H. Miller, E. I. Shibata, I. P. Shipsey, S. Glenn, Y. Kwon, A. L. Lyon, S. Roberts, E. H. Thorndike, C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, V. Savinov, D. Ugolini, X. Zhou, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, R. Stroynowski, J. Ye, T. Wlodek, M. Artuso, E. Dambasuren, S. Kopp, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, A. Titov, G. Viehhauser, J. C. Wang, S. E. Csorna, K. W. McLean, S. Marka, Z. Xu, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, G. J. Zhou

Physics

University at Albany

California Institute of Technology
University of California at San Diego
University of California at Santa Barbara
University of Colorado Boulder
Cornell University
University of Florida
Harvard University
University of Hawai'i at Mānoa
University of Illinois at Urbana-Champaign
Carleton University
McGill University
Ithaca College
University of Kansas
University of Minnesota Twin Cities
SUNY Albany
Ohio State University
University of Oklahoma
Purdue University
University of Rochester
SLAC National Accelerator Laboratory
Southern Methodist University
Syracuse University
Vanderbilt University
Virginia Polytechnic Institute and State University
Wayne State University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Using the CLEO II detector at the Cornell Electron Storage Ring we have measured the Ξ_c⁰ decay asymmetry parameter in the decay Ξ_c⁰→Ξ^-π⁺. We find α_{ξ c}⁰α_Ξ = -0.26±0.18(stat)_-0.04^+0.05(syst); using the world average value of α_Ξ= -0.456±0.014 we obtain a=o=-0.56±0.39(stat)_-0.09^+0.10(syst). The physically allowed range of a decay asymmetry parameter is -1<α<+1. Our result prefers a negative value: α_{ξ c}⁰ is <0.1 at the 90% C.L. The central value occupies the middle of the theoretically expected range but is not yet precise enough to choose between models.

Original language	English
Article number	111102
Journal	Physical Review D
Volume	63
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.63.111102
State	Published - 2001

Access to Document

10.1103/PhysRevD.63.111102

Cite this

Chan, S., Eigen, G., Lipeles, E., Miller, J. S., Schmidtler, M., Shapiro, A., Sun, W. M., Urheim, J., Weinstein, A. J., Würthwein, F., Jaffe, D. E., Masek, G., Paar, H. P., Potter, E. M., Prell, S., Sharma, V., Asner, D. M., Eppich, A., Gronberg, J., ... Zhou, G. J. (2001). Measurement of the decay asymmetry parameters in 5"-H IT+. Physical Review D, 63(11), Article 111102. https://doi.org/10.1103/PhysRevD.63.111102

@article{2a39a0b205d84ec497437b8d601cef0f,

title = "Measurement of the decay asymmetry parameters in 5{"}-H IT+",

abstract = "Using the CLEO II detector at the Cornell Electron Storage Ring we have measured the Ξc0 decay asymmetry parameter in the decay Ξc0→Ξ-π+. We find αξ c0αΞ = -0.26±0.18(stat)-0.04+0.05(syst); using the world average value of αΞ= -0.456±0.014 we obtain a=o=-0.56±0.39(stat)-0.09+0.10(syst). The physically allowed range of a decay asymmetry parameter is -1<α<+1. Our result prefers a negative value: αξ c0 is <0.1 at the 90\% C.L. The central value occupies the middle of the theoretically expected range but is not yet precise enough to choose between models.",

author = "S. Chan and G. Eigen and E. Lipeles and Miller, \{J. S.\} and M. Schmidtler and A. Shapiro and Sun, \{W. M.\} and J. Urheim and Weinstein, \{A. J.\} and F. W{\"u}rthwein and Jaffe, \{D. E.\} and G. Masek and Paar, \{H. P.\} and Potter, \{E. M.\} and S. Prell and V. Sharma and Asner, \{D. M.\} and A. Eppich and J. Gronberg and Hill, \{T. S.\} and Lange, \{D. J.\} and Morrison, \{R. J.\} and Nelson, \{H. N.\} and Nelson, \{T. K.\} and D. Roberts and Behrens, \{B. H.\} and Ford, \{W. T.\} and A. Gritsan and H. Krieg and J. Roy and Smith, \{J. G.\} and Alexander, \{J. P.\} and R. Baker and C. Bebek and Berger, \{B. E.\} and K. Berkelman and V. Boisvert and Cassel, \{D. G.\} and Crowcroft, \{D. S.\} and M. Dickson and \{von Dombrowski\}, S. and Drell, \{P. S.\} and Ecklund, \{K. M.\} and R. Ehrlich and Foland, \{A. D.\} and P. Gaidarev and L. Gibbons and B. Gittelman and Gray, \{S. W.\} and Hartill, \{D. L.\} and Heltsley, \{B. K.\} and Hopman, \{P. I.\} and Kreinick, \{D. L.\} and T. Lee and Y. Liu and Mistry, \{N. B.\} and Ng, \{C. R.\} and E. Nordberg and M. Ogg and Patterson, \{J. R.\} and D. Peterson and D. Riley and A. Soffer and B. Valant-Spaight and A. Warburton and C. Ward and M. Athanas and P. Avery and Jones, \{C. D.\} and M. Lohner and C. Prescott and Rubiera, \{A. I.\} and J. Yelton and J. Zheng and G. Brandenburg and Briere, \{R. A.\} and A. Ershov and Gao, \{Y. S.\} and Kim, \{D. Y.J.\} and R. Wilson and Browder, \{T. E.\} and Y. Li and Rodriguez, \{J. L.\} and H. Yamamoto and T. Bergfeld and Eisenstein, \{B. I.\} and J. Ernst and Gladding, \{G. E.\} and Gollin, \{G. D.\} and Hans, \{R. M.\} and E. Johnson and I. Karliner and Marsh, \{M. A.\} and M. Palmer and M. Selen and Thaler, \{J. J.\} and Edwards, \{K. W.\} and A. Bellerive and R. Janicek and Patel, \{P. M.\} and Sadoff, \{A. J.\} and R. Ammar and P. Baringer and A. Bean and D. Besson and D. Coppage and R. Davis and S. Kotov and I. Kravchenko and N. Kwak and L. Zhou and S. Anderson and Y. Kubota and Lee, \{S. J.\} and R. Mahapatra and O{\textquoteright}Neill, \{J. J.\} and R. Poling and T. Riehle and A. Smith and Alam, \{M. S.\} and Athar, \{S. B.\} and Z. Ling and Mahmood, \{A. H.\} and S. Timm and F. Wappler and A. Anastassov and Duboscq, \{J. E.\} and Gan, \{K. K.\} and C. Gwon and T. Hart and K. Honscheid and H. Kagan and R. Kass and J. Lee and J. Lorenc and H. Schwarthoff and A. Wolf and Zoeller, \{M. M.\} and Richichi, \{S. J.\} and H. Severini and P. Skubic and A. Undrus and M. Bishai and S. Chen and J. Fast and Hinson, \{J. W.\} and N. Menon and Miller, \{D. H.\} and Shibata, \{E. I.\} and Shipsey, \{I. P.\} and S. Glenn and Y. Kwon and Lyon, \{A. L.\} and S. Roberts and Thorndike, \{E. H.\} and Jessop, \{C. P.\} and K. Lingel and H. Marsiske and Perl, \{M. L.\} and V. Savinov and D. Ugolini and X. Zhou and Coan, \{T. E.\} and V. Fadeyev and I. Korolkov and Y. Maravin and I. Narsky and R. Stroynowski and J. Ye and T. Wlodek and M. Artuso and E. Dambasuren and S. Kopp and Moneti, \{G. C.\} and R. Mountain and S. Schuh and T. Skwarnicki and S. Stone and A. Titov and G. Viehhauser and Wang, \{J. C.\} and Csorna, \{S. E.\} and McLean, \{K. W.\} and S. Marka and Z. Xu and R. Godang and K. Kinoshita and Lai, \{I. C.\} and P. Pomianowski and S. Schrenk and G. Bonvicini and D. Cinabro and R. Greene and Perera, \{L. P.\} and Zhou, \{G. J.\}",

year = "2001",

doi = "10.1103/PhysRevD.63.111102",

language = "English",

volume = "63",

journal = "Physical Review D",

issn = "0556-2821",

number = "11",

}

Chan, S, Eigen, G, Lipeles, E, Miller, JS, Schmidtler, M, Shapiro, A, Sun, WM, Urheim, J, Weinstein, AJ, Würthwein, F, Jaffe, DE, Masek, G, Paar, HP, Potter, EM, Prell, S, Sharma, V, Asner, DM, Eppich, A, Gronberg, J, Hill, TS, Lange, DJ, Morrison, RJ, Nelson, HN, Nelson, TK, Roberts, D, Behrens, BH, Ford, WT, Gritsan, A, Krieg, H, Roy, J, Smith, JG, Alexander, JP, Baker, R, Bebek, C, Berger, BE, Berkelman, K, Boisvert, V, Cassel, DG, Crowcroft, DS, Dickson, M, von Dombrowski, S, Drell, PS, Ecklund, KM, Ehrlich, R, Foland, AD, Gaidarev, P, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hopman, PI, Kreinick, DL, Lee, T, Liu, Y, Mistry, NB, Ng, CR, Nordberg, E, Ogg, M, Patterson, JR, Peterson, D, Riley, D, Soffer, A, Valant-Spaight, B, Warburton, A, Ward, C, Athanas, M, Avery, P, Jones, CD, Lohner, M, Prescott, C, Rubiera, AI, Yelton, J, Zheng, J, Brandenburg, G, Briere, RA, Ershov, A, Gao, YS, Kim, DYJ, Wilson, R, Browder, TE, Li, Y, Rodriguez, JL, Yamamoto, H, Bergfeld, T, Eisenstein, BI, Ernst, J, Gladding, GE, Gollin, GD, Hans, RM, Johnson, E, Karliner, I, Marsh, MA, Palmer, M, Selen, M, Thaler, JJ, Edwards, KW, Bellerive, A, Janicek, R, Patel, PM, Sadoff, AJ, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Davis, R, Kotov, S, Kravchenko, I, Kwak, N, Zhou, L, Anderson, S, Kubota, Y, Lee, SJ, Mahapatra, R, O’Neill, JJ, Poling, R, Riehle, T, Smith, A, Alam, MS, Athar, SB, Ling, Z, Mahmood, AH, Timm, S, Wappler, F, Anastassov, A, Duboscq, JE, Gan, KK, Gwon, C, Hart, T, Honscheid, K, Kagan, H, Kass, R, Lee, J, Lorenc, J, Schwarthoff, H, Wolf, A, Zoeller, MM, Richichi, SJ, Severini, H, Skubic, P, Undrus, A, Bishai, M, Chen, S, Fast, J, Hinson, JW, Menon, N, Miller, DH, Shibata, EI, Shipsey, IP, Glenn, S, Kwon, Y, Lyon, AL, Roberts, S, Thorndike, EH, Jessop, CP, Lingel, K, Marsiske, H, Perl, ML, Savinov, V, Ugolini, D, Zhou, X, Coan, TE, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Dambasuren, E, Kopp, S, Moneti, GC, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Titov, A, Viehhauser, G, Wang, JC, Csorna, SE, McLean, KW, Marka, S, Xu, Z, Godang, R, Kinoshita, K, Lai, IC, Pomianowski, P, Schrenk, S, Bonvicini, G, Cinabro, D, Greene, R, Perera, LP & Zhou, GJ 2001, 'Measurement of the decay asymmetry parameters in 5"-H IT+', Physical Review D, vol. 63, no. 11, 111102. https://doi.org/10.1103/PhysRevD.63.111102

TY - JOUR

T1 - Measurement of the decay asymmetry parameters in 5"-H IT+

AU - Chan, S.

AU - Eigen, G.

AU - Lipeles, E.

AU - Miller, J. S.

AU - Schmidtler, M.

AU - Shapiro, A.

AU - Sun, W. M.

AU - Urheim, J.

AU - Weinstein, A. J.

AU - Würthwein, F.

AU - Jaffe, D. E.

AU - Masek, G.

AU - Paar, H. P.

AU - Potter, E. M.

AU - Prell, S.

AU - Sharma, V.

AU - Asner, D. M.

AU - Eppich, A.

AU - Gronberg, J.

AU - Hill, T. S.

AU - Lange, D. J.

AU - Morrison, R. J.

AU - Nelson, H. N.

AU - Nelson, T. K.

AU - Roberts, D.

AU - Behrens, B. H.

AU - Ford, W. T.

AU - Gritsan, A.

AU - Krieg, H.

AU - Roy, J.

AU - Smith, J. G.

AU - Alexander, J. P.

AU - Baker, R.

AU - Bebek, C.

AU - Berger, B. E.

AU - Berkelman, K.

AU - Boisvert, V.

AU - Cassel, D. G.

AU - Crowcroft, D. S.

AU - Dickson, M.

AU - von Dombrowski, S.

AU - Drell, P. S.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Foland, A. D.

AU - Gaidarev, P.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hopman, P. I.

AU - Kreinick, D. L.

AU - Lee, T.

AU - Liu, Y.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

AU - Ogg, M.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Soffer, A.

AU - Valant-Spaight, B.

AU - Warburton, A.

AU - Ward, C.

AU - Athanas, M.

AU - Avery, P.

AU - Jones, C. D.

AU - Lohner, M.

AU - Prescott, C.

AU - Rubiera, A. I.

AU - Yelton, J.

AU - Zheng, J.

AU - Brandenburg, G.

AU - Briere, R. A.

AU - Ershov, A.

AU - Gao, Y. S.

AU - Kim, D. Y.J.

AU - Wilson, R.

AU - Browder, T. E.

AU - Li, Y.

AU - Rodriguez, J. L.

AU - Yamamoto, H.

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Ernst, J.

AU - Gladding, G. E.

AU - Gollin, G. D.

AU - Hans, R. M.

AU - Johnson, E.

AU - Karliner, I.

AU - Marsh, M. A.

AU - Palmer, M.

AU - Selen, M.

AU - Thaler, J. J.

AU - Edwards, K. W.

AU - Bellerive, A.

AU - Janicek, R.

AU - Patel, P. M.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Baringer, P.

AU - Bean, A.

AU - Besson, D.

AU - Coppage, D.

AU - Davis, R.

AU - Kotov, S.

AU - Kravchenko, I.

AU - Kwak, N.

AU - Zhou, L.

AU - Anderson, S.

AU - Kubota, Y.

AU - Lee, S. J.

AU - Mahapatra, R.

AU - O’Neill, J. J.

AU - Poling, R.

AU - Riehle, T.

AU - Smith, A.

AU - Alam, M. S.

AU - Athar, S. B.

AU - Ling, Z.

AU - Mahmood, A. H.

AU - Timm, S.

AU - Wappler, F.

AU - Anastassov, A.

AU - Duboscq, J. E.

AU - Gan, K. K.

AU - Gwon, C.

AU - Hart, T.

AU - Honscheid, K.

AU - Kagan, H.

AU - Kass, R.

AU - Lee, J.

AU - Lorenc, J.

AU - Schwarthoff, H.

AU - Wolf, A.

AU - Zoeller, M. M.

AU - Richichi, S. J.

AU - Severini, H.

AU - Skubic, P.

AU - Undrus, A.

AU - Bishai, M.

AU - Chen, S.

AU - Fast, J.

AU - Hinson, J. W.

AU - Menon, N.

AU - Miller, D. H.

AU - Shibata, E. I.

AU - Shipsey, I. P.

AU - Glenn, S.

AU - Kwon, Y.

AU - Lyon, A. L.

AU - Roberts, S.

AU - Thorndike, E. H.

AU - Jessop, C. P.

AU - Lingel, K.

AU - Marsiske, H.

AU - Perl, M. L.

AU - Savinov, V.

AU - Ugolini, D.

AU - Zhou, X.

AU - Coan, T. E.

AU - Fadeyev, V.

AU - Korolkov, I.

AU - Maravin, Y.

AU - Narsky, I.

AU - Stroynowski, R.

AU - Ye, J.

AU - Wlodek, T.

AU - Artuso, M.

AU - Dambasuren, E.

AU - Kopp, S.

AU - Moneti, G. C.

AU - Mountain, R.

AU - Schuh, S.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Titov, A.

AU - Viehhauser, G.

AU - Wang, J. C.

AU - Csorna, S. E.

AU - McLean, K. W.

AU - Marka, S.

AU - Xu, Z.

AU - Godang, R.

AU - Kinoshita, K.

AU - Lai, I. C.

AU - Pomianowski, P.

AU - Schrenk, S.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Greene, R.

AU - Perera, L. P.

AU - Zhou, G. J.

PY - 2001

Y1 - 2001

N2 - Using the CLEO II detector at the Cornell Electron Storage Ring we have measured the Ξc0 decay asymmetry parameter in the decay Ξc0→Ξ-π+. We find αξ c0αΞ = -0.26±0.18(stat)-0.04+0.05(syst); using the world average value of αΞ= -0.456±0.014 we obtain a=o=-0.56±0.39(stat)-0.09+0.10(syst). The physically allowed range of a decay asymmetry parameter is -1<α<+1. Our result prefers a negative value: αξ c0 is <0.1 at the 90% C.L. The central value occupies the middle of the theoretically expected range but is not yet precise enough to choose between models.

AB - Using the CLEO II detector at the Cornell Electron Storage Ring we have measured the Ξc0 decay asymmetry parameter in the decay Ξc0→Ξ-π+. We find αξ c0αΞ = -0.26±0.18(stat)-0.04+0.05(syst); using the world average value of αΞ= -0.456±0.014 we obtain a=o=-0.56±0.39(stat)-0.09+0.10(syst). The physically allowed range of a decay asymmetry parameter is -1<α<+1. Our result prefers a negative value: αξ c0 is <0.1 at the 90% C.L. The central value occupies the middle of the theoretically expected range but is not yet precise enough to choose between models.

UR - https://www.scopus.com/pages/publications/33750665671

U2 - 10.1103/PhysRevD.63.111102

DO - 10.1103/PhysRevD.63.111102

M3 - Article

SN - 0556-2821

VL - 63

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 111102

ER -

Measurement of the decay asymmetry parameters in 5"-H IT+

Abstract

Access to Document

Other files and links

Fingerprint

Cite this