Evidence for Λc(2593)+ production

H. Albrecht; T. Hamacher; R. P. Hofmann; T. Kirchhoff; R. Mankel; A. Nau; S. Nowak; D. Reßing; H. Schröder; H. D. Schulz; M. Walter; R. Wurth; C. Hast; H. Kapitza; H. Kolanoski; A. Kosche; A. Lange; A. Lindner; M. Schieber; T. Siegmund; H. Thurn; D. Töpfer; D. Wegener; C. Frankl; J. Graf; M. Schmidtler; M. Schramm; K. R. Schubert; R. Schwierz; B. Spaan; R. Waldi; K. Reim; H. Wegener; R. Eckmann; H. Kuipers; O. Mai; R. Mundt; T. Oest; R. Reiner; A. Rohde; W. Schmidt-Parzefall; J. Stiewe; S. Werner; K. Ehret; W. Hofmann; A. Hüpper; K. T. Knöpfle; J. Spengler; P. Krieger; D. B. MacFarlane; J. D. Prentice; P. R.B. Saull; K. Tzamariudaki; R. G. Van De Water; T. S. Yoon; M. Schneider; S. Weseler; M. Bračko; G. Kernel; P. Križan; E. Križnič; G. Medin; T. Podobnik; T. Živko; V. Balagura; S. Barsuk; I. Belyaev; R. Chistov; M. Danilov; V. Eiges; L. Gershtein; Yu Gershtein; A. Golutvin; O. Igonkina; I. Korolko; G. Kostina; D. Litvintsev; P. Pakhlov; S. Semenov; A. Snizhko; I. Tichomirov; Yu Zaitsev

doi:10.1016/S0370-2693(97)00503-0

Evidence for Λ_c(2593)⁺ production

H. Albrecht
, T. Hamacher
, R. P. Hofmann
, T. Kirchhoff
, R. Mankel
, A. Nau
, S. Nowak
, D. Reßing
, H. Schröder
, H. D. Schulz
, M. Walter
, R. Wurth
, C. Hast
, H. Kapitza
, H. Kolanoski
, A. Kosche
, A. Lange
, A. Lindner
, M. Schieber
, T. Siegmund

H. Thurn, D. Töpfer, D. Wegener, C. Frankl, J. Graf, M. Schmidtler, M. Schramm, K. R. Schubert, R. Schwierz, B. Spaan, R. Waldi, K. Reim, H. Wegener, R. Eckmann, H. Kuipers, O. Mai, R. Mundt, T. Oest, R. Reiner, A. Rohde, W. Schmidt-Parzefall, J. Stiewe, S. Werner, K. Ehret, W. Hofmann, A. Hüpper, K. T. Knöpfle, J. Spengler, P. Krieger, D. B. MacFarlane, J. D. Prentice, P. R.B. Saull, K. Tzamariudaki, R. G. Van De Water, T. S. Yoon, M. Schneider, S. Weseler, M. Bračko, G. Kernel, P. Križan, E. Križnič, G. Medin, T. Podobnik, T. Živko, V. Balagura, S. Barsuk, I. Belyaev, R. Chistov, M. Danilov, V. Eiges, L. Gershtein, Yu Gershtein, A. Golutvin, O. Igonkina, I. Korolko, G. Kostina, D. Litvintsev, P. Pakhlov, S. Semenov, A. Snizhko, I. Tichomirov, Yu Zaitsev

c/o DESY
Max-Planck-Institut für Kernphysik
University of Toronto
McGill University
University of Ljubljana
Institute for Theoretical and Experimental Physics

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

43 Citations (Scopus)

Abstract

Using the ARGUS detector at the e⁺e^- storage ring DORIS II at DESY, we have found evidence for the production of the excited charmed baryon state Λ_c(2593)⁺ in the channel Λ⁺_cπ⁺π^-. Its mass was determined to be (2594.6 ± 0.9 ± 0.4) MeV/c², and the natural width measured to be Γ = (2.9^+2.9+1.8_-2.1-1.4) MeV. The production cross section times the branching ratios of σ(e⁺e^- → Λ_c(2593)⁺X) × Br(Λ_c(2593)⁺ → Λ⁺_cπ⁺π^-) × Br(Λ⁺_c → pK^-π⁺) was measured to be (0.25^+0.24-0.13 ± 0.13) pb. The fractions of Λ_c(2593)⁺ decays proceeding through the Σ⁰_cπ⁺ and Σ⁺⁺_cπ^- channels were determined to be 0.29 ± 0.10 ± 0.11 and 0.37 ± 0.12 ± 0.13, respectively.

Original language	English
Pages (from-to)	207-212
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	402
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(97)00503-0
Publication status	Published - 5 Jun 1997
Externally published	Yes

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10.1016/S0370-2693(97)00503-0

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Albrecht, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Mankel, R., Nau, A., Nowak, S., Reßing, D., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, A., Lindner, A., Schieber, M., ... Zaitsev, Y. (1997). Evidence for Λ_c(2593)⁺ production. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 402(1-2), 207-212. https://doi.org/10.1016/S0370-2693(97)00503-0

@article{55a77df4746a46249302b18ab8c0cb85,

title = "Evidence for Λc(2593)+ production",

abstract = "Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, we have found evidence for the production of the excited charmed baryon state Λc(2593)+ in the channel Λ+cπ+π-. Its mass was determined to be (2594.6 ± 0.9 ± 0.4) MeV/c2, and the natural width measured to be Γ = (2.9+2.9+1.8-2.1-1.4) MeV. The production cross section times the branching ratios of σ(e+e- → Λc(2593)+X) × Br(Λc(2593)+ → Λ+cπ+π-) × Br(Λ+c → pK-π+) was measured to be (0.25+0.24-0.13 ± 0.13) pb. The fractions of Λc(2593)+ decays proceeding through the Σ0cπ+ and Σ++cπ- channels were determined to be 0.29 ± 0.10 ± 0.11 and 0.37 ± 0.12 ± 0.13, respectively.",

author = "H. Albrecht and T. Hamacher and Hofmann, \{R. P.\} and T. Kirchhoff and R. Mankel and A. Nau and S. Nowak and D. Re{\ss}ing and H. Schr{\"o}der and Schulz, \{H. D.\} and M. Walter and R. Wurth and C. Hast and H. Kapitza and H. Kolanoski and A. Kosche and A. Lange and A. Lindner and M. Schieber and T. Siegmund and H. Thurn and D. T{\"o}pfer and D. Wegener and C. Frankl and J. Graf and M. Schmidtler and M. Schramm and Schubert, \{K. R.\} and R. Schwierz and B. Spaan and R. Waldi and K. Reim and H. Wegener and R. Eckmann and H. Kuipers and O. Mai and R. Mundt and T. Oest and R. Reiner and A. Rohde and W. Schmidt-Parzefall and J. Stiewe and S. Werner and K. Ehret and W. Hofmann and A. H{\"u}pper and Kn{\"o}pfle, \{K. T.\} and J. Spengler and P. Krieger and MacFarlane, \{D. B.\} and Prentice, \{J. D.\} and Saull, \{P. R.B.\} and K. Tzamariudaki and \{Van De Water\}, \{R. G.\} and Yoon, \{T. S.\} and M. Schneider and S. Weseler and M. Bra{\v c}ko and G. Kernel and P. Kri{\v z}an and E. Kri{\v z}ni{\v c} and G. Medin and T. Podobnik and T. {\v Z}ivko and V. Balagura and S. Barsuk and I. Belyaev and R. Chistov and M. Danilov and V. Eiges and L. Gershtein and Yu Gershtein and A. Golutvin and O. Igonkina and I. Korolko and G. Kostina and D. Litvintsev and P. Pakhlov and S. Semenov and A. Snizhko and I. Tichomirov and Yu Zaitsev",

year = "1997",

month = jun,

day = "5",

doi = "10.1016/S0370-2693(97)00503-0",

language = "English",

volume = "402",

pages = "207--212",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Albrecht, H, Hamacher, T, Hofmann, RP, Kirchhoff, T, Mankel, R, Nau, A, Nowak, S, Reßing, D, Schröder, H, Schulz, HD, Walter, M, Wurth, R, Hast, C, Kapitza, H, Kolanoski, H, Kosche, A, Lange, A, Lindner, A, Schieber, M, Siegmund, T, Thurn, H, Töpfer, D, Wegener, D, Frankl, C, Graf, J, Schmidtler, M, Schramm, M, Schubert, KR, Schwierz, R, Spaan, B, Waldi, R, Reim, K, Wegener, H, Eckmann, R, Kuipers, H, Mai, O, Mundt, R, Oest, T, Reiner, R, Rohde, A, Schmidt-Parzefall, W, Stiewe, J, Werner, S, Ehret, K, Hofmann, W, Hüpper, A, Knöpfle, KT, Spengler, J, Krieger, P, MacFarlane, DB, Prentice, JD, Saull, PRB, Tzamariudaki, K, Van De Water, RG, Yoon, TS, Schneider, M, Weseler, S, Bračko, M, Kernel, G, Križan, P, Križnič, E, Medin, G, Podobnik, T, Živko, T, Balagura, V, Barsuk, S, Belyaev, I, Chistov, R, Danilov, M, Eiges, V, Gershtein, L, Gershtein, Y, Golutvin, A, Igonkina, O, Korolko, I, Kostina, G, Litvintsev, D, Pakhlov, P, Semenov, S, Snizhko, A, Tichomirov, I & Zaitsev, Y 1997, 'Evidence for Λ_c(2593)⁺ production', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 402, no. 1-2, pp. 207-212. https://doi.org/10.1016/S0370-2693(97)00503-0

TY - JOUR

T1 - Evidence for Λc(2593)+ production

AU - Albrecht, H.

AU - Hamacher, T.

AU - Hofmann, R. P.

AU - Kirchhoff, T.

AU - Mankel, R.

AU - Nau, A.

AU - Nowak, S.

AU - Reßing, D.

AU - Schröder, H.

AU - Schulz, H. D.

AU - Walter, M.

AU - Wurth, R.

AU - Hast, C.

AU - Kapitza, H.

AU - Kolanoski, H.

AU - Kosche, A.

AU - Lange, A.

AU - Lindner, A.

AU - Schieber, M.

AU - Siegmund, T.

AU - Thurn, H.

AU - Töpfer, D.

AU - Wegener, D.

AU - Frankl, C.

AU - Graf, J.

AU - Schmidtler, M.

AU - Schramm, M.

AU - Schubert, K. R.

AU - Schwierz, R.

AU - Spaan, B.

AU - Waldi, R.

AU - Reim, K.

AU - Wegener, H.

AU - Eckmann, R.

AU - Kuipers, H.

AU - Mai, O.

AU - Mundt, R.

AU - Oest, T.

AU - Reiner, R.

AU - Rohde, A.

AU - Schmidt-Parzefall, W.

AU - Stiewe, J.

AU - Werner, S.

AU - Ehret, K.

AU - Hofmann, W.

AU - Hüpper, A.

AU - Knöpfle, K. T.

AU - Spengler, J.

AU - Krieger, P.

AU - MacFarlane, D. B.

AU - Prentice, J. D.

AU - Saull, P. R.B.

AU - Tzamariudaki, K.

AU - Van De Water, R. G.

AU - Yoon, T. S.

AU - Schneider, M.

AU - Weseler, S.

AU - Bračko, M.

AU - Kernel, G.

AU - Križan, P.

AU - Križnič, E.

AU - Medin, G.

AU - Podobnik, T.

AU - Živko, T.

AU - Balagura, V.

AU - Barsuk, S.

AU - Belyaev, I.

AU - Chistov, R.

AU - Danilov, M.

AU - Eiges, V.

AU - Gershtein, L.

AU - Gershtein, Yu

AU - Golutvin, A.

AU - Igonkina, O.

AU - Korolko, I.

AU - Kostina, G.

AU - Litvintsev, D.

AU - Pakhlov, P.

AU - Semenov, S.

AU - Snizhko, A.

AU - Tichomirov, I.

AU - Zaitsev, Yu

PY - 1997/6/5

Y1 - 1997/6/5

N2 - Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, we have found evidence for the production of the excited charmed baryon state Λc(2593)+ in the channel Λ+cπ+π-. Its mass was determined to be (2594.6 ± 0.9 ± 0.4) MeV/c2, and the natural width measured to be Γ = (2.9+2.9+1.8-2.1-1.4) MeV. The production cross section times the branching ratios of σ(e+e- → Λc(2593)+X) × Br(Λc(2593)+ → Λ+cπ+π-) × Br(Λ+c → pK-π+) was measured to be (0.25+0.24-0.13 ± 0.13) pb. The fractions of Λc(2593)+ decays proceeding through the Σ0cπ+ and Σ++cπ- channels were determined to be 0.29 ± 0.10 ± 0.11 and 0.37 ± 0.12 ± 0.13, respectively.

AB - Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, we have found evidence for the production of the excited charmed baryon state Λc(2593)+ in the channel Λ+cπ+π-. Its mass was determined to be (2594.6 ± 0.9 ± 0.4) MeV/c2, and the natural width measured to be Γ = (2.9+2.9+1.8-2.1-1.4) MeV. The production cross section times the branching ratios of σ(e+e- → Λc(2593)+X) × Br(Λc(2593)+ → Λ+cπ+π-) × Br(Λ+c → pK-π+) was measured to be (0.25+0.24-0.13 ± 0.13) pb. The fractions of Λc(2593)+ decays proceeding through the Σ0cπ+ and Σ++cπ- channels were determined to be 0.29 ± 0.10 ± 0.11 and 0.37 ± 0.12 ± 0.13, respectively.

U2 - 10.1016/S0370-2693(97)00503-0

DO - 10.1016/S0370-2693(97)00503-0

M3 - Article

AN - SCOPUS:0007814870

SN - 0370-2693

VL - 402

SP - 207

EP - 212

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 - 1-2

ER -

Evidence for Λc(2593)+ production

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Evidence for Λ_c(2593)⁺ production