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. SiegmundH. 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

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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 B
Volume	402
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(97)00503-0
State	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 B, 402(1-2), 207-212. https://doi.org/10.1016/S0370-2693(97)00503-0

@article{ced4e494188b4cefb74206cd5e40a748,

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",

note = "Funding Information: I DESY, IfH Zeuthen. 2 Now at Institutf ur Physik, Humboldt-Universitz;iut Berlin, Germany. 3 Supportedb y the GermanB undesministeriufmiir Forschung und Technologieu, nderc ontracnt umber0 54DO51I ? 4Supportedb y the GermanB undesministeriufmur Forschung und Technologieu, nderc ontracnt umbe0r 56DDllP 5Supportedb y the GermanB undesministeriufmur Forschung und Technologieu, nderc ontracnt umber0 54ER12P “Supportedb y the GermanB undesministeriufmiir Forschung undT echnologieu, nderc ontracnt umber0 55HD21P {\textquoteright} Universityo f TorontoT, orontoO, ntario,C anada. * McGill UniversityM, ontrealQ, uebecC, anada. 9 Supportedb y the NaturalS ciencesa nd EngineeringR esearch Council,C anada. lo Supportedb y the GermanB undesministeriufmib Forschung undT echnologieu, nderc ontracnt umbe0r 55KAllP tt On leavef rom Universityo f MontenegroY,u goslavia. I2 Supportedb y the Ministry of Sciencea nd Technologyo f the Republico f Sloveniaa ndt he IntemationaleBs& o KfA, Jiilich. t3P artiallys upportedb y GrantM SB300 from the International ScienceF oundation. t4A ll referencetso a specificc hargedst atea lsoi mplyt hec harge conjugatest ate.",

year = "1997",

month = jun,

day = "5",

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

language = "English",

volume = "402",

pages = "207--212",

journal = "Physics Letters B",

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 B, 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

N1 - Funding Information: I DESY, IfH Zeuthen. 2 Now at Institutf ur Physik, Humboldt-Universitz;iut Berlin, Germany. 3 Supportedb y the GermanB undesministeriufmiir Forschung und Technologieu, nderc ontracnt umber0 54DO51I ? 4Supportedb y the GermanB undesministeriufmur Forschung und Technologieu, nderc ontracnt umbe0r 56DDllP 5Supportedb y the GermanB undesministeriufmur Forschung und Technologieu, nderc ontracnt umber0 54ER12P “Supportedb y the GermanB undesministeriufmiir Forschung undT echnologieu, nderc ontracnt umber0 55HD21P ’ Universityo f TorontoT, orontoO, ntario,C anada. * McGill UniversityM, ontrealQ, uebecC, anada. 9 Supportedb y the NaturalS ciencesa nd EngineeringR esearch Council,C anada. lo Supportedb y the GermanB undesministeriufmib Forschung undT echnologieu, nderc ontracnt umbe0r 55KAllP tt On leavef rom Universityo f MontenegroY,u goslavia. I2 Supportedb y the Ministry of Sciencea nd Technologyo f the Republico f Sloveniaa ndt he IntemationaleBs& o KfA, Jiilich. t3P artiallys upportedb y GrantM SB300 from the International ScienceF oundation. t4A ll referencetso a specificc hargedst atea lsoi mplyt hec harge conjugatest ate.

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.

UR - http://www.scopus.com/inward/record.url?scp=0007814870&partnerID=8YFLogxK

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 B

JF - Physics Letters B

IS - 1-2

ER -

Evidence for Λ_c(2593)⁺ production

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