Study of the decay Λc +→λl+νl

T. Bergfeld, B. I. Eisenstein, G. Gollin, B. Ong, M. Palmer, M. Selen, J. J. Thaler, A. J. Sadoff, R. Ammar, S. Ball, P. Baringer, A. Bean, D. Besson, D. Coppage, N. Copty, R. Davis, N. Hancock, M. Kelly, N. Kwak, H. LamY. Kubota, M. Lattery, J. K. Nelson, D. Patton, D. Perticone, R. Poling, V. Savinov, S. Schrenk, R. Wang, M. S. Alam, I. J. Kim, B. Nemati, J. J. O'Neill, H. Severini, C. R. Sun, M. M. Zoeller, G. Crawford, C. M. Daubenmier, R. Fulton, D. Fujino, K. K. Gan, K. Honscheid, H. Kagan, R. Kass, J. Lee, R. Malchow, F. Morrow, Y. Skovpen, M. Sung, C. White, F. Butler, X. Fu, G. Kalbfleisch, W. R. Ross, P. Skubic, J. Snow, P. L. Wang, M. Wood, D. N. Brown, J. Fast, R. L. McIlwain, T. Miao, D. H. Miller, M. Modesitt, D. Payne, E. I. Shibata, I. P J Shipsey, P. N. Wang, M. Battle, J. Ernst, Y. Kwon, S. Roberts, E. H. Thorndike, C. H. Wang, J. Dominick, M. Lambrecht, S. Sanghera, V. Shelkov, Tomasz Skwarnicki, R. Stroynowski, I. Volobouev, G. Wei, P. Zadorozhny, Marina Artuso, M. Goldberg, D. He, N. Horwitz, R. Kennett, R. Mountain, G. C. Moneti, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, Sheldon Stone, M. Thulasidas, G. Vasseur, G. Zhu, J. Bartelt, S. E. Csorna, Z. Egyed, V. Jain, K. Kinoshita, K. W. Edwards, M. Ogg, D. I. Britton, E. R F Hyatt, D. B. MacFarlane, P. M. Patel, D. S. Akerib, B. Barish, M. Chadha, S. Chan, D. F. Cowen, G. Eigen, J. S. Miller, C. O'Grady, J. Urheim, A. J. Weinstein, D. Acosta, M. Athanas, G. Masek, H. P. Paar, J. Gronberg, R. Kutschke, S. Menary, R. J. Morrison, S. Nakanishi, H. N. Nelson, T. K. Nelson, C. Qiao, J. D. Richman, A. Ryd, H. Tajima, D. Schmidt, D. Sperka, M. S. Witherell, M. Procario, R. Balest, K. Cho, M. Daoudi, W. T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, J. G. Smith, J. P. Alexander, C. Bebek, K. Berkelman, K. Bloom, T. E. Browder, D. G. Cassel, H. A. Cho, D. M. Coffman, P. S. Drell, R. Ehrlich, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, C. D. Jones, S. L. Jones, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, C. R. Ng, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, S. Salman, M. Sapper, F. Würthwein, P. Avery, A. Freyberger, J. Rodriguez, R. Stephens, S. Yang, J. Yelton, D. Cinabro, S. Henderson, T. Liu, M. Saulnier, R. Wilson, H. Yamamoto

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Using the CLEO II detector at CESR we observe 500 Λl+ pairs consistent with the semileptonic decay Λc + → λ+ν We measure σ(e+e- → Λ+ cX) · B(Λ+ c → Λl+νl) = 4.77±0.25±0.66 pb. Combining with the charm semileptonic width and the lifetime of the Λc we also obtain B(Λ+ c → pK-π+). We find no evidence for Λl+νl final states in which there are additional Λ+ c decay products. We measure the decay asymmetry parameter of Λ+ c → Λe+νe to be αΛc = -0.89+0.17+0.09 -0.11-0.05.

Original languageEnglish (US)
Pages (from-to)219-226
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume323
Issue number2
DOIs
StatePublished - Mar 10 1994

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decay
asymmetry
life (durability)
detectors
products

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Bergfeld, T., Eisenstein, B. I., Gollin, G., Ong, B., Palmer, M., Selen, M., ... Yamamoto, H. (1994). Study of the decay Λc +→λl+νl Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 323(2), 219-226. https://doi.org/10.1016/0370-2693(94)90295-X

Study of the decay Λc +→λl+νl . / Bergfeld, T.; Eisenstein, B. I.; Gollin, G.; Ong, B.; Palmer, M.; Selen, M.; Thaler, J. J.; Sadoff, A. J.; Ammar, R.; Ball, S.; Baringer, P.; Bean, A.; Besson, D.; Coppage, D.; Copty, N.; Davis, R.; Hancock, N.; Kelly, M.; Kwak, N.; Lam, H.; Kubota, Y.; Lattery, M.; Nelson, J. K.; Patton, D.; Perticone, D.; Poling, R.; Savinov, V.; Schrenk, S.; Wang, R.; Alam, M. S.; Kim, I. J.; Nemati, B.; O'Neill, J. J.; Severini, H.; Sun, C. R.; Zoeller, M. M.; Crawford, G.; Daubenmier, C. M.; Fulton, R.; Fujino, D.; Gan, K. K.; Honscheid, K.; Kagan, H.; Kass, R.; Lee, J.; Malchow, R.; Morrow, F.; Skovpen, Y.; Sung, M.; White, C.; Butler, F.; Fu, X.; Kalbfleisch, G.; Ross, W. R.; Skubic, P.; Snow, J.; Wang, P. L.; Wood, M.; Brown, D. N.; Fast, J.; McIlwain, R. L.; Miao, T.; Miller, D. H.; Modesitt, M.; Payne, D.; Shibata, E. I.; Shipsey, I. P J; Wang, P. N.; Battle, M.; Ernst, J.; Kwon, Y.; Roberts, S.; Thorndike, E. H.; Wang, C. H.; Dominick, J.; Lambrecht, M.; Sanghera, S.; Shelkov, V.; Skwarnicki, Tomasz; Stroynowski, R.; Volobouev, I.; Wei, G.; Zadorozhny, P.; Artuso, Marina; Goldberg, M.; He, D.; Horwitz, N.; Kennett, R.; Mountain, R.; Moneti, G. C.; Muheim, F.; Mukhin, Y.; Playfer, S.; Rozen, Y.; Stone, Sheldon; Thulasidas, M.; Vasseur, G.; Zhu, G.; Bartelt, J.; Csorna, S. E.; Egyed, Z.; Jain, V.; Kinoshita, K.; Edwards, K. W.; Ogg, M.; Britton, D. I.; Hyatt, E. R F; MacFarlane, D. B.; Patel, P. M.; Akerib, D. S.; Barish, B.; Chadha, M.; Chan, S.; Cowen, D. F.; Eigen, G.; Miller, J. S.; O'Grady, C.; Urheim, J.; Weinstein, A. J.; Acosta, D.; Athanas, M.; Masek, G.; Paar, H. P.; Gronberg, J.; Kutschke, R.; Menary, S.; Morrison, R. J.; Nakanishi, S.; Nelson, H. N.; Nelson, T. K.; Qiao, C.; Richman, J. D.; Ryd, A.; Tajima, H.; Schmidt, D.; Sperka, D.; Witherell, M. S.; Procario, M.; Balest, R.; Cho, K.; Daoudi, M.; Ford, W. T.; Johnson, D. R.; Lingel, K.; Lohner, M.; Rankin, P.; Smith, J. G.; Alexander, J. P.; Bebek, C.; Berkelman, K.; Bloom, K.; Browder, T. E.; Cassel, D. G.; Cho, H. A.; Coffman, D. M.; Drell, P. S.; Ehrlich, R.; Garcia-Sciveres, M.; Geiser, B.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Jones, C. D.; Jones, S. L.; Kandaswamy, J.; Katayama, N.; Kim, P. C.; Kreinick, D. L.; Ludwig, G. S.; Masui, J.; Mevissen, J.; Mistry, N. B.; Ng, C. R.; Nordberg, E.; Patterson, J. R.; Peterson, D.; Riley, D.; Salman, S.; Sapper, M.; Würthwein, F.; Avery, P.; Freyberger, A.; Rodriguez, J.; Stephens, R.; Yang, S.; Yelton, J.; Cinabro, D.; Henderson, S.; Liu, T.; Saulnier, M.; Wilson, R.; Yamamoto, H.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 323, No. 2, 10.03.1994, p. 219-226.

Research output: Contribution to journalArticle

Bergfeld, T, Eisenstein, BI, Gollin, G, Ong, B, Palmer, M, Selen, M, Thaler, JJ, Sadoff, AJ, Ammar, R, Ball, S, Baringer, P, Bean, A, Besson, D, Coppage, D, Copty, N, Davis, R, Hancock, N, Kelly, M, Kwak, N, Lam, H, Kubota, Y, Lattery, M, Nelson, JK, Patton, D, Perticone, D, Poling, R, Savinov, V, Schrenk, S, Wang, R, Alam, MS, Kim, IJ, Nemati, B, O'Neill, JJ, Severini, H, Sun, CR, Zoeller, MM, Crawford, G, Daubenmier, CM, Fulton, R, Fujino, D, Gan, KK, Honscheid, K, Kagan, H, Kass, R, Lee, J, Malchow, R, Morrow, F, Skovpen, Y, Sung, M, White, C, Butler, F, Fu, X, Kalbfleisch, G, Ross, WR, Skubic, P, Snow, J, Wang, PL, Wood, M, Brown, DN, Fast, J, McIlwain, RL, Miao, T, Miller, DH, Modesitt, M, Payne, D, Shibata, EI, Shipsey, IPJ, Wang, PN, Battle, M, Ernst, J, Kwon, Y, Roberts, S, Thorndike, EH, Wang, CH, Dominick, J, Lambrecht, M, Sanghera, S, Shelkov, V, Skwarnicki, T, Stroynowski, R, Volobouev, I, Wei, G, Zadorozhny, P, Artuso, M, Goldberg, M, He, D, Horwitz, N, Kennett, R, Mountain, R, Moneti, GC, Muheim, F, Mukhin, Y, Playfer, S, Rozen, Y, Stone, S, Thulasidas, M, Vasseur, G, Zhu, G, Bartelt, J, Csorna, SE, Egyed, Z, Jain, V, Kinoshita, K, Edwards, KW, Ogg, M, Britton, DI, Hyatt, ERF, MacFarlane, DB, Patel, PM, Akerib, DS, Barish, B, Chadha, M, Chan, S, Cowen, DF, Eigen, G, Miller, JS, O'Grady, C, Urheim, J, Weinstein, AJ, Acosta, D, Athanas, M, Masek, G, Paar, HP, Gronberg, J, Kutschke, R, Menary, S, Morrison, RJ, Nakanishi, S, Nelson, HN, Nelson, TK, Qiao, C, Richman, JD, Ryd, A, Tajima, H, Schmidt, D, Sperka, D, Witherell, MS, Procario, M, Balest, R, Cho, K, Daoudi, M, Ford, WT, Johnson, DR, Lingel, K, Lohner, M, Rankin, P, Smith, JG, Alexander, JP, Bebek, C, Berkelman, K, Bloom, K, Browder, TE, Cassel, DG, Cho, HA, Coffman, DM, Drell, PS, Ehrlich, R, Garcia-Sciveres, M, Geiser, B, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Jones, CD, Jones, SL, Kandaswamy, J, Katayama, N, Kim, PC, Kreinick, DL, Ludwig, GS, Masui, J, Mevissen, J, Mistry, NB, Ng, CR, Nordberg, E, Patterson, JR, Peterson, D, Riley, D, Salman, S, Sapper, M, Würthwein, F, Avery, P, Freyberger, A, Rodriguez, J, Stephens, R, Yang, S, Yelton, J, Cinabro, D, Henderson, S, Liu, T, Saulnier, M, Wilson, R & Yamamoto, H 1994, 'Study of the decay Λc +→λl+νl ', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 323, no. 2, pp. 219-226. https://doi.org/10.1016/0370-2693(94)90295-X
Bergfeld, T. ; Eisenstein, B. I. ; Gollin, G. ; Ong, B. ; Palmer, M. ; Selen, M. ; Thaler, J. J. ; Sadoff, A. J. ; Ammar, R. ; Ball, S. ; Baringer, P. ; Bean, A. ; Besson, D. ; Coppage, D. ; Copty, N. ; Davis, R. ; Hancock, N. ; Kelly, M. ; Kwak, N. ; Lam, H. ; Kubota, Y. ; Lattery, M. ; Nelson, J. K. ; Patton, D. ; Perticone, D. ; Poling, R. ; Savinov, V. ; Schrenk, S. ; Wang, R. ; Alam, M. S. ; Kim, I. J. ; Nemati, B. ; O'Neill, J. J. ; Severini, H. ; Sun, C. R. ; Zoeller, M. M. ; Crawford, G. ; Daubenmier, C. M. ; Fulton, R. ; Fujino, D. ; Gan, K. K. ; Honscheid, K. ; Kagan, H. ; Kass, R. ; Lee, J. ; Malchow, R. ; Morrow, F. ; Skovpen, Y. ; Sung, M. ; White, C. ; Butler, F. ; Fu, X. ; Kalbfleisch, G. ; Ross, W. R. ; Skubic, P. ; Snow, J. ; Wang, P. L. ; Wood, M. ; Brown, D. N. ; Fast, J. ; McIlwain, R. L. ; Miao, T. ; Miller, D. H. ; Modesitt, M. ; Payne, D. ; Shibata, E. I. ; Shipsey, I. P J ; Wang, P. N. ; Battle, M. ; Ernst, J. ; Kwon, Y. ; Roberts, S. ; Thorndike, E. H. ; Wang, C. H. ; Dominick, J. ; Lambrecht, M. ; Sanghera, S. ; Shelkov, V. ; Skwarnicki, Tomasz ; Stroynowski, R. ; Volobouev, I. ; Wei, G. ; Zadorozhny, P. ; Artuso, Marina ; Goldberg, M. ; He, D. ; Horwitz, N. ; Kennett, R. ; Mountain, R. ; Moneti, G. C. ; Muheim, F. ; Mukhin, Y. ; Playfer, S. ; Rozen, Y. ; Stone, Sheldon ; Thulasidas, M. ; Vasseur, G. ; Zhu, G. ; Bartelt, J. ; Csorna, S. E. ; Egyed, Z. ; Jain, V. ; Kinoshita, K. ; Edwards, K. W. ; Ogg, M. ; Britton, D. I. ; Hyatt, E. R F ; MacFarlane, D. B. ; Patel, P. M. ; Akerib, D. S. ; Barish, B. ; Chadha, M. ; Chan, S. ; Cowen, D. F. ; Eigen, G. ; Miller, J. S. ; O'Grady, C. ; Urheim, J. ; Weinstein, A. J. ; Acosta, D. ; Athanas, M. ; Masek, G. ; Paar, H. P. ; Gronberg, J. ; Kutschke, R. ; Menary, S. ; Morrison, R. J. ; Nakanishi, S. ; Nelson, H. N. ; Nelson, T. K. ; Qiao, C. ; Richman, J. D. ; Ryd, A. ; Tajima, H. ; Schmidt, D. ; Sperka, D. ; Witherell, M. S. ; Procario, M. ; Balest, R. ; Cho, K. ; Daoudi, M. ; Ford, W. T. ; Johnson, D. R. ; Lingel, K. ; Lohner, M. ; Rankin, P. ; Smith, J. G. ; Alexander, J. P. ; Bebek, C. ; Berkelman, K. ; Bloom, K. ; Browder, T. E. ; Cassel, D. G. ; Cho, H. A. ; Coffman, D. M. ; Drell, P. S. ; Ehrlich, R. ; Garcia-Sciveres, M. ; Geiser, B. ; Gittelman, B. ; Gray, S. W. ; Hartill, D. L. ; Heltsley, B. K. ; Jones, C. D. ; Jones, S. L. ; Kandaswamy, J. ; Katayama, N. ; Kim, P. C. ; Kreinick, D. L. ; Ludwig, G. S. ; Masui, J. ; Mevissen, J. ; Mistry, N. B. ; Ng, C. R. ; Nordberg, E. ; Patterson, J. R. ; Peterson, D. ; Riley, D. ; Salman, S. ; Sapper, M. ; Würthwein, F. ; Avery, P. ; Freyberger, A. ; Rodriguez, J. ; Stephens, R. ; Yang, S. ; Yelton, J. ; Cinabro, D. ; Henderson, S. ; Liu, T. ; Saulnier, M. ; Wilson, R. ; Yamamoto, H. / Study of the decay Λc +→λl+νl In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1994 ; Vol. 323, No. 2. pp. 219-226.
@article{10d15f6611974df1ab89b67419231c74,
title = "Study of the decay Λc +→λl+νl",
abstract = "Using the CLEO II detector at CESR we observe 500 Λl+ pairs consistent with the semileptonic decay Λc + → λ+ν We measure σ(e+e- → Λ+ cX) · B(Λ+ c → Λl+νl) = 4.77±0.25±0.66 pb. Combining with the charm semileptonic width and the lifetime of the Λc we also obtain B(Λ+ c → pK-π+). We find no evidence for Λl+νl final states in which there are additional Λ+ c decay products. We measure the decay asymmetry parameter of Λ+ c → Λe+νe to be αΛc = -0.89+0.17+0.09 -0.11-0.05.",
author = "T. Bergfeld and Eisenstein, {B. I.} and G. Gollin and B. Ong and M. Palmer and M. Selen and Thaler, {J. J.} and Sadoff, {A. J.} and R. Ammar and S. Ball and P. Baringer and A. Bean and D. Besson and D. Coppage and N. Copty and R. Davis and N. Hancock and M. Kelly and N. Kwak and H. Lam and Y. Kubota and M. Lattery and Nelson, {J. K.} and D. Patton and D. Perticone and R. Poling and V. Savinov and S. Schrenk and R. Wang and Alam, {M. S.} and Kim, {I. J.} and B. Nemati and O'Neill, {J. J.} and H. Severini and Sun, {C. R.} and Zoeller, {M. M.} and G. Crawford and Daubenmier, {C. M.} and R. Fulton and D. Fujino and Gan, {K. K.} and K. Honscheid and H. Kagan and R. Kass and J. Lee and R. Malchow and F. Morrow and Y. Skovpen and M. Sung and C. White and F. Butler and X. Fu and G. Kalbfleisch and Ross, {W. R.} and P. Skubic and J. Snow and Wang, {P. L.} and M. Wood and Brown, {D. N.} and J. Fast and McIlwain, {R. L.} and T. Miao and Miller, {D. H.} and M. Modesitt and D. Payne and Shibata, {E. I.} and Shipsey, {I. P J} and Wang, {P. N.} and M. Battle and J. Ernst and Y. Kwon and S. Roberts and Thorndike, {E. H.} and Wang, {C. H.} and J. Dominick and M. Lambrecht and S. Sanghera and V. Shelkov and Tomasz Skwarnicki and R. Stroynowski and I. Volobouev and G. Wei and P. Zadorozhny and Marina Artuso and M. Goldberg and D. He and N. Horwitz and R. Kennett and R. Mountain and Moneti, {G. C.} and F. Muheim and Y. Mukhin and S. Playfer and Y. Rozen and Sheldon Stone and M. Thulasidas and G. Vasseur and G. Zhu and J. Bartelt and Csorna, {S. E.} and Z. Egyed and V. Jain and K. Kinoshita and Edwards, {K. W.} and M. Ogg and Britton, {D. I.} and Hyatt, {E. R F} and MacFarlane, {D. B.} and Patel, {P. M.} and Akerib, {D. S.} and B. Barish and M. Chadha and S. Chan and Cowen, {D. F.} and G. Eigen and Miller, {J. S.} and C. O'Grady and J. Urheim and Weinstein, {A. J.} and D. Acosta and M. Athanas and G. Masek and Paar, {H. P.} and J. Gronberg and R. Kutschke and S. Menary and Morrison, {R. J.} and S. Nakanishi and Nelson, {H. N.} and Nelson, {T. K.} and C. Qiao and Richman, {J. D.} and A. Ryd and H. Tajima and D. Schmidt and D. Sperka and Witherell, {M. S.} and M. Procario and R. Balest and K. Cho and M. Daoudi and Ford, {W. T.} and Johnson, {D. R.} and K. Lingel and M. Lohner and P. Rankin and Smith, {J. G.} and Alexander, {J. P.} and C. Bebek and K. Berkelman and K. Bloom and Browder, {T. E.} and Cassel, {D. G.} and Cho, {H. A.} and Coffman, {D. M.} and Drell, {P. S.} and R. Ehrlich and M. Garcia-Sciveres and B. Geiser and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and Jones, {C. D.} and Jones, {S. L.} and J. Kandaswamy and N. Katayama and Kim, {P. C.} and Kreinick, {D. L.} and Ludwig, {G. S.} and J. Masui and J. Mevissen and Mistry, {N. B.} and Ng, {C. R.} and E. Nordberg and Patterson, {J. R.} and D. Peterson and D. Riley and S. Salman and M. Sapper and F. W{\"u}rthwein and P. Avery and A. Freyberger and J. Rodriguez and R. Stephens and S. Yang and J. Yelton and D. Cinabro and S. Henderson and T. Liu and M. Saulnier and R. Wilson and H. Yamamoto",
year = "1994",
month = "3",
day = "10",
doi = "10.1016/0370-2693(94)90295-X",
language = "English (US)",
volume = "323",
pages = "219--226",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Study of the decay Λc +→λl+νl

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Gollin, G.

AU - Ong, B.

AU - Palmer, M.

AU - Selen, M.

AU - Thaler, J. J.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Ball, S.

AU - Baringer, P.

AU - Bean, A.

AU - Besson, D.

AU - Coppage, D.

AU - Copty, N.

AU - Davis, R.

AU - Hancock, N.

AU - Kelly, M.

AU - Kwak, N.

AU - Lam, H.

AU - Kubota, Y.

AU - Lattery, M.

AU - Nelson, J. K.

AU - Patton, D.

AU - Perticone, D.

AU - Poling, R.

AU - Savinov, V.

AU - Schrenk, S.

AU - Wang, R.

AU - Alam, M. S.

AU - Kim, I. J.

AU - Nemati, B.

AU - O'Neill, J. J.

AU - Severini, H.

AU - Sun, C. R.

AU - Zoeller, M. M.

AU - Crawford, G.

AU - Daubenmier, C. M.

AU - Fulton, R.

AU - Fujino, D.

AU - Gan, K. K.

AU - Honscheid, K.

AU - Kagan, H.

AU - Kass, R.

AU - Lee, J.

AU - Malchow, R.

AU - Morrow, F.

AU - Skovpen, Y.

AU - Sung, M.

AU - White, C.

AU - Butler, F.

AU - Fu, X.

AU - Kalbfleisch, G.

AU - Ross, W. R.

AU - Skubic, P.

AU - Snow, J.

AU - Wang, P. L.

AU - Wood, M.

AU - Brown, D. N.

AU - Fast, J.

AU - McIlwain, R. L.

AU - Miao, T.

AU - Miller, D. H.

AU - Modesitt, M.

AU - Payne, D.

AU - Shibata, E. I.

AU - Shipsey, I. P J

AU - Wang, P. N.

AU - Battle, M.

AU - Ernst, J.

AU - Kwon, Y.

AU - Roberts, S.

AU - Thorndike, E. H.

AU - Wang, C. H.

AU - Dominick, J.

AU - Lambrecht, M.

AU - Sanghera, S.

AU - Shelkov, V.

AU - Skwarnicki, Tomasz

AU - Stroynowski, R.

AU - Volobouev, I.

AU - Wei, G.

AU - Zadorozhny, P.

AU - Artuso, Marina

AU - Goldberg, M.

AU - He, D.

AU - Horwitz, N.

AU - Kennett, R.

AU - Mountain, R.

AU - Moneti, G. C.

AU - Muheim, F.

AU - Mukhin, Y.

AU - Playfer, S.

AU - Rozen, Y.

AU - Stone, Sheldon

AU - Thulasidas, M.

AU - Vasseur, G.

AU - Zhu, G.

AU - Bartelt, J.

AU - Csorna, S. E.

AU - Egyed, Z.

AU - Jain, V.

AU - Kinoshita, K.

AU - Edwards, K. W.

AU - Ogg, M.

AU - Britton, D. I.

AU - Hyatt, E. R F

AU - MacFarlane, D. B.

AU - Patel, P. M.

AU - Akerib, D. S.

AU - Barish, B.

AU - Chadha, M.

AU - Chan, S.

AU - Cowen, D. F.

AU - Eigen, G.

AU - Miller, J. S.

AU - O'Grady, C.

AU - Urheim, J.

AU - Weinstein, A. J.

AU - Acosta, D.

AU - Athanas, M.

AU - Masek, G.

AU - Paar, H. P.

AU - Gronberg, J.

AU - Kutschke, R.

AU - Menary, S.

AU - Morrison, R. J.

AU - Nakanishi, S.

AU - Nelson, H. N.

AU - Nelson, T. K.

AU - Qiao, C.

AU - Richman, J. D.

AU - Ryd, A.

AU - Tajima, H.

AU - Schmidt, D.

AU - Sperka, D.

AU - Witherell, M. S.

AU - Procario, M.

AU - Balest, R.

AU - Cho, K.

AU - Daoudi, M.

AU - Ford, W. T.

AU - Johnson, D. R.

AU - Lingel, K.

AU - Lohner, M.

AU - Rankin, P.

AU - Smith, J. G.

AU - Alexander, J. P.

AU - Bebek, C.

AU - Berkelman, K.

AU - Bloom, K.

AU - Browder, T. E.

AU - Cassel, D. G.

AU - Cho, H. A.

AU - Coffman, D. M.

AU - Drell, P. S.

AU - Ehrlich, R.

AU - Garcia-Sciveres, M.

AU - Geiser, B.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Jones, C. D.

AU - Jones, S. L.

AU - Kandaswamy, J.

AU - Katayama, N.

AU - Kim, P. C.

AU - Kreinick, D. L.

AU - Ludwig, G. S.

AU - Masui, J.

AU - Mevissen, J.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Salman, S.

AU - Sapper, M.

AU - Würthwein, F.

AU - Avery, P.

AU - Freyberger, A.

AU - Rodriguez, J.

AU - Stephens, R.

AU - Yang, S.

AU - Yelton, J.

AU - Cinabro, D.

AU - Henderson, S.

AU - Liu, T.

AU - Saulnier, M.

AU - Wilson, R.

AU - Yamamoto, H.

PY - 1994/3/10

Y1 - 1994/3/10

N2 - Using the CLEO II detector at CESR we observe 500 Λl+ pairs consistent with the semileptonic decay Λc + → λ+ν We measure σ(e+e- → Λ+ cX) · B(Λ+ c → Λl+νl) = 4.77±0.25±0.66 pb. Combining with the charm semileptonic width and the lifetime of the Λc we also obtain B(Λ+ c → pK-π+). We find no evidence for Λl+νl final states in which there are additional Λ+ c decay products. We measure the decay asymmetry parameter of Λ+ c → Λe+νe to be αΛc = -0.89+0.17+0.09 -0.11-0.05.

AB - Using the CLEO II detector at CESR we observe 500 Λl+ pairs consistent with the semileptonic decay Λc + → λ+ν We measure σ(e+e- → Λ+ cX) · B(Λ+ c → Λl+νl) = 4.77±0.25±0.66 pb. Combining with the charm semileptonic width and the lifetime of the Λc we also obtain B(Λ+ c → pK-π+). We find no evidence for Λl+νl final states in which there are additional Λ+ c decay products. We measure the decay asymmetry parameter of Λ+ c → Λe+νe to be αΛc = -0.89+0.17+0.09 -0.11-0.05.

UR - http://www.scopus.com/inward/record.url?scp=0000313484&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000313484&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(94)90295-X

DO - 10.1016/0370-2693(94)90295-X

M3 - Article

AN - SCOPUS:0000313484

VL - 323

SP - 219

EP - 226

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

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

SN - 0370-2693

IS - 2

ER -