Measurement of the product branching fraction B(c→ΘcX)XB(Θc→ΛX)

R. Ammar; P. Baringer; P. Brabant; A. Bean; D. Besson; H. Bull; R. Davis; J. Holliday; S. Kotov; I. Kravchenko; N. Kwak; I. Robertson; R. Stutz; X. Zhao; S. Anderson; V. V. Frolov; Y. Kubota; S. J. Lee; R. Mahapatra; J. J. O'Neill; R. Poling; T. Riehle; A. Smith; S. Ahmed; M. S. Alam; S. B. Athar; L. Jian; L. Ling; A. H. Mahmood; M. Saleem; S. Timm; F. Wappler; A. Anastassov; J. E. Duboscq; K. K. Gan; C. Gwon; T. Hart; K. Honscheid; H. Kagan; R. Kass; J. Lorenc; H. Schwarthoff; E. Von Toerne; M. M. Zoeller; S. J. Richichi; H. Severini; P. Skubic; A. Undrus; M. Bishai; S. Chen; J. Fast; J. W. Hinson; J. Lee; N. Menon; D. H. Miller; E. I. Shibata; I. P J Shipsey; Y. Kwon; A. L. Lyon; 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. Stroynovvski; J. Ye; T. Wlodek; M. Artuso; R. Ayad; E. Dambasuren; S. Kopp; G. Majumder; G. C. Moneti; R. Mountain; S. Schuh; T. Skwarnicki; S. Stone; A. Titov; G. Viehhauser; J. C. Wang; A. Wolf; J. Wu; 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; S. Chan; G. Eigen; E. Lipeles; 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; T. K. Nelson; J. D. Richman; R. A. Briere; 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; F. Blanc; V. Boisvert; D. G. Cassel; M. Dickson; 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; C. D. Jones; D. L. Kreinick; T. Lee; Y. Liu; T. O. Meyer; N. B. Mistry; C. R. Ng; E. Nordberg; J. R. Patterson; D. Peterson; D. Riley; J. G. Thayer; P. G. Thies; B. Valant-Spaight; A. Warburton; P. Avery; M. Lohner; C. Prescott; A. I. Rubiera; J. Yelton; J. Zheng; G. Brandenburg; 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; C. Plager; C. Sedlack; M. Selen; J. J. Thaler; J. Williams; K. W. Edwards; R. Janicek; P. M. Patel; A. J. Sadoff

doi:10.1103/PhysRevD.62.092007

Measurement of the product branching fraction B(c→Θ_cX)XB(Θ_c→ΛX)

R. Ammar, P. Baringer, P. Brabant, A. Bean, D. Besson, H. Bull, R. Davis, J. Holliday, S. Kotov, I. Kravchenko, N. Kwak, I. Robertson, R. Stutz, X. Zhao, S. Anderson, V. V. Frolov, Y. Kubota, S. J. Lee, R. Mahapatra, J. J. O'NeillR. Poling, T. Riehle, A. Smith, S. Ahmed, M. S. Alam, S. B. Athar, L. Jian, L. Ling, A. H. Mahmood, M. Saleem, S. Timm, F. Wappler, A. Anastassov, J. E. Duboscq, K. K. Gan, C. Gwon, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lorenc, H. Schwarthoff, E. Von Toerne, M. M. Zoeller, S. J. Richichi, H. Severini, P. Skubic, A. Undrus, M. Bishai, S. Chen, J. Fast, J. W. Hinson, J. Lee, N. Menon, D. H. Miller, E. I. Shibata, I. P J Shipsey, Y. Kwon, A. L. Lyon, 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. Stroynovvski, J. Ye, T. Wlodek, M. Artuso, R. Ayad, E. Dambasuren, S. Kopp, G. Majumder, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, A. Titov, G. Viehhauser, J. C. Wang, A. Wolf, J. Wu, 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, S. Chan, G. Eigen, E. Lipeles, 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, T. K. Nelson, J. D. Richman, R. A. Briere, 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, F. Blanc, V. Boisvert, D. G. Cassel, M. Dickson, 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, C. D. Jones, D. L. Kreinick, T. Lee, Y. Liu, T. O. Meyer, N. B. Mistry, C. R. Ng, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, J. G. Thayer, P. G. Thies, B. Valant-Spaight, A. Warburton, P. Avery, M. Lohner, C. Prescott, A. I. Rubiera, J. Yelton, J. Zheng, G. Brandenburg, 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, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, R. Janicek, P. M. Patel, A. J. Sadoff

Physics and Astronomy (Twin Cities)

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

Abstract

Based on a high statistics e⁺e^-→cc̄ data sample, we report on the inclusive rate for charmed baryons to decay into Λ particles using charm-event tagging. We select e⁺e^-→cc̄ events which have a clear anti-charm tag and measure the Λ content in the hemisphere opposite the tag (charge conjugate modes are implicit). This allows us to determine the product branching fraction B_Λ=B(c→Θ_cX)XB(Θ _c→ΛX), where Θ_c represents a sum over all charmed baryons produced in e⁺e^- fragmentation at √s=10.5 GeV, given our specific tags. We obtain BΛ=(1.87±0.03±0.33)%.

Original language	English (US)
Article number	092207
Pages (from-to)	1-12
Number of pages	12
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	62
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.62.092007
State	Published - Nov 1 2000

Publisher link

10.1103/PhysRevD.62.092007

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Ammar, R., Baringer, P., Brabant, P., Bean, A., Besson, D., Bull, H., Davis, R., Holliday, J., Kotov, S., Kravchenko, I., Kwak, N., Robertson, I., Stutz, R., Zhao, X., Anderson, S., Frolov, V. V., Kubota, Y., Lee, S. J., Mahapatra, R., ... Sadoff, A. J. (2000). Measurement of the product branching fraction B(c→Θ_cX)XB(Θ_c→ΛX). Physical Review D - Particles, Fields, Gravitation and Cosmology, 62(9), 1-12. Article 092207. https://doi.org/10.1103/PhysRevD.62.092007

Ammar, R, Baringer, P, Brabant, P, Bean, A, Besson, D, Bull, H, Davis, R, Holliday, J, Kotov, S, Kravchenko, I, Kwak, N, Robertson, I, Stutz, R, Zhao, X, Anderson, S, Frolov, VV, Kubota, Y, Lee, SJ, Mahapatra, R, O'Neill, JJ, Poling, R, Riehle, T, Smith, A, Ahmed, S, Alam, MS, Athar, SB, Jian, L, Ling, L, Mahmood, AH, Saleem, M, Timm, S, Wappler, F, Anastassov, A, Duboscq, JE, Gan, KK, Gwon, C, Hart, T, Honscheid, K, Kagan, H, Kass, R, Lorenc, J, Schwarthoff, H, Von Toerne, E, Zoeller, MM, Richichi, SJ, Severini, H, Skubic, P, Undrus, A, Bishai, M, Chen, S, Fast, J, Hinson, JW, Lee, J, Menon, N, Miller, DH, Shibata, EI, Shipsey, IPJ, Kwon, Y, Lyon, AL, 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, Stroynovvski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Dambasuren, E, Kopp, S, Majumder, G, Moneti, GC, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Titov, A, Viehhauser, G, Wang, JC, Wolf, A, Wu, J, 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, Chan, S, Eigen, G, Lipeles, E, 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, TK, Richman, JD, Briere, RA, Behrens, BH, Ford, WT, Gritsan, A, Krieg, H, Roy, J, Smith, JG, Alexander, JP, Baker, R, Bebek, C, Berger, BE, Berkelman, K, Blanc, F, Boisvert, V, Cassel, DG, Dickson, M, Drell, PS, Ecklund, KM, Ehrlich, R, Foland, AD, Gaidarev, P, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hopman, PI, Jones, CD, Kreinick, DL, Lee, T, Liu, Y, Meyer, TO, Mistry, NB, Ng, CR, Nordberg, E, Patterson, JR, Peterson, D, Riley, D, Thayer, JG, Thies, PG, Valant-Spaight, B, Warburton, A, Avery, P, Lohner, M, Prescott, C, Rubiera, AI, Yelton, J, Zheng, J, Brandenburg, G, 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, Plager, C, Sedlack, C, Selen, M, Thaler, JJ, Williams, J, Edwards, KW, Janicek, R, Patel, PM & Sadoff, AJ 2000, 'Measurement of the product branching fraction B(c→Θ_cX)XB(Θ_c→ΛX)', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 62, no. 9, 092207, pp. 1-12. https://doi.org/10.1103/PhysRevD.62.092007

@article{8cf54e428df8400a894bb9e54c89cbe1,

title = "Measurement of the product branching fraction B(c→ΘcX)XB(Θc→ΛX)",

abstract = "Based on a high statistics e+e-→c{\=c} data sample, we report on the inclusive rate for charmed baryons to decay into Λ particles using charm-event tagging. We select e+e-→c{\=c} events which have a clear anti-charm tag and measure the Λ content in the hemisphere opposite the tag (charge conjugate modes are implicit). This allows us to determine the product branching fraction BΛ=B(c→ΘcX)XB(Θ c→ΛX), where Θc represents a sum over all charmed baryons produced in e+e- fragmentation at √s=10.5 GeV, given our specific tags. We obtain BΛ=(1.87±0.03±0.33)%.",

author = "R. Ammar and P. Baringer and P. Brabant and A. Bean and D. Besson and H. Bull and R. Davis and J. Holliday and S. Kotov and I. Kravchenko and N. Kwak and I. Robertson and R. Stutz and X. Zhao and S. Anderson and Frolov, {V. V.} and Y. Kubota and Lee, {S. J.} and R. Mahapatra and O'Neill, {J. J.} and R. Poling and T. Riehle and A. Smith and S. Ahmed and Alam, {M. S.} and Athar, {S. B.} and L. Jian and L. Ling and Mahmood, {A. H.} and M. Saleem 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. Lorenc and H. Schwarthoff and {Von Toerne}, E. 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 J. Lee and N. Menon and Miller, {D. H.} and Shibata, {E. I.} and Shipsey, {I. P J} and Y. Kwon and Lyon, {A. L.} 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. Stroynovvski and J. Ye and T. Wlodek and M. Artuso and R. Ayad and E. Dambasuren and S. Kopp and G. Majumder 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 A. Wolf and J. Wu 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.} and S. Chan and G. Eigen and E. Lipeles 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, {T. K.} and Richman, {J. D.} and Briere, {R. A.} 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 F. Blanc and V. Boisvert and Cassel, {D. G.} and M. Dickson 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 Jones, {C. D.} and Kreinick, {D. L.} and T. Lee and Y. Liu and Meyer, {T. O.} and Mistry, {N. B.} and Ng, {C. R.} and E. Nordberg and Patterson, {J. R.} and D. Peterson and D. Riley and Thayer, {J. G.} and Thies, {P. G.} and B. Valant-Spaight and A. Warburton and P. Avery and M. Lohner and C. Prescott and Rubiera, {A. I.} and J. Yelton and J. Zheng and G. Brandenburg 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 C. Plager and C. Sedlack and M. Selen and Thaler, {J. J.} and J. Williams and Edwards, {K. W.} and R. Janicek and Patel, {P. M.} and Sadoff, {A. J.}",

year = "2000",

month = nov,

day = "1",

doi = "10.1103/PhysRevD.62.092007",

language = "English (US)",

volume = "62",

pages = "1--12",

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

issn = "0556-2821",

publisher = "American Institute of Physics Publising LLC",

number = "9",

}

TY - JOUR

T1 - Measurement of the product branching fraction B(c→ΘcX)XB(Θc→ΛX)

AU - Ammar, R.

AU - Baringer, P.

AU - Brabant, P.

AU - Bean, A.

AU - Besson, D.

AU - Bull, H.

AU - Davis, R.

AU - Holliday, J.

AU - Kotov, S.

AU - Kravchenko, I.

AU - Kwak, N.

AU - Robertson, I.

AU - Stutz, R.

AU - Zhao, X.

AU - Anderson, S.

AU - Frolov, V. V.

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 - Ahmed, S.

AU - Alam, M. S.

AU - Athar, S. B.

AU - Jian, L.

AU - Ling, L.

AU - Mahmood, A. H.

AU - Saleem, M.

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 - Lorenc, J.

AU - Schwarthoff, H.

AU - Von Toerne, E.

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 - Lee, J.

AU - Menon, N.

AU - Miller, D. H.

AU - Shibata, E. I.

AU - Shipsey, I. P J

AU - Kwon, Y.

AU - Lyon, A. L.

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 - Stroynovvski, R.

AU - Ye, J.

AU - Wlodek, T.

AU - Artuso, M.

AU - Ayad, R.

AU - Dambasuren, E.

AU - Kopp, S.

AU - Majumder, G.

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 - Wolf, A.

AU - Wu, J.

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.

AU - Chan, S.

AU - Eigen, G.

AU - Lipeles, E.

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, T. K.

AU - Richman, J. D.

AU - Briere, R. A.

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 - Blanc, F.

AU - Boisvert, V.

AU - Cassel, D. G.

AU - Dickson, M.

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 - Jones, C. D.

AU - Kreinick, D. L.

AU - Lee, T.

AU - Liu, Y.

AU - Meyer, T. O.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Thayer, J. G.

AU - Thies, P. G.

AU - Valant-Spaight, B.

AU - Warburton, A.

AU - Avery, P.

AU - Lohner, M.

AU - Prescott, C.

AU - Rubiera, A. I.

AU - Yelton, J.

AU - Zheng, J.

AU - Brandenburg, G.

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 - Plager, C.

AU - Sedlack, C.

AU - Selen, M.

AU - Thaler, J. J.

AU - Williams, J.

AU - Edwards, K. W.

AU - Janicek, R.

AU - Patel, P. M.

AU - Sadoff, A. J.

PY - 2000/11/1

Y1 - 2000/11/1

N2 - Based on a high statistics e+e-→cc̄ data sample, we report on the inclusive rate for charmed baryons to decay into Λ particles using charm-event tagging. We select e+e-→cc̄ events which have a clear anti-charm tag and measure the Λ content in the hemisphere opposite the tag (charge conjugate modes are implicit). This allows us to determine the product branching fraction BΛ=B(c→ΘcX)XB(Θ c→ΛX), where Θc represents a sum over all charmed baryons produced in e+e- fragmentation at √s=10.5 GeV, given our specific tags. We obtain BΛ=(1.87±0.03±0.33)%.

AB - Based on a high statistics e+e-→cc̄ data sample, we report on the inclusive rate for charmed baryons to decay into Λ particles using charm-event tagging. We select e+e-→cc̄ events which have a clear anti-charm tag and measure the Λ content in the hemisphere opposite the tag (charge conjugate modes are implicit). This allows us to determine the product branching fraction BΛ=B(c→ΘcX)XB(Θ c→ΛX), where Θc represents a sum over all charmed baryons produced in e+e- fragmentation at √s=10.5 GeV, given our specific tags. We obtain BΛ=(1.87±0.03±0.33)%.

UR - http://www.scopus.com/inward/record.url?scp=17044375845&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevD.62.092007

DO - 10.1103/PhysRevD.62.092007

M3 - Article

AN - SCOPUS:17044375845

SN - 0556-2821

VL - 62

SP - 1

EP - 12

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

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

IS - 9

M1 - 092207

ER -

Measurement of the product branching fraction B(c→Θ_cX)XB(Θ_c→ΛX)

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