Baryonic resonances close to the K̄N threshold: The case of Λ(1405) in pp collisions

G. Agakishiev; A. Balanda; D. Belver; A. Belyaev; J. C. Berger-Chen; A. Blanco; M. Böhmer; J. L. Boyard; P. Cabanelas; E. Castro; S. Chernenko; T. Christ; M. Destefanis; F. Dohrmann; A. Dybczak; E. Epple; L. Fabbietti; O. Fateev; P. Finocchiaro; P. Fonte; J. Friese; I. Fröhlich; T. Galatyuk; J. A. Garzón; R. Gernhäuser; C. Gilardi; M. Golubeva; D. González-Díaz; F. Guber; M. Gumberidze; T. Heinz; T. Hennino; R. Holzmann; A. Ierusalimov; I. Iori; A. Ivashkin; M. Jurkovic; B. Kämpfer; K. Kanaki; T. Karavicheva; I. Koenig; W. Koenig; B. W. Kolb; R. Kotte; A. Krása; F. Krizek; R. Krücken; H. Kuc; W. Kühn; A. Kugler; A. Kurepin; R. Lalik; S. Lang; J. S. Lange; K. Lapidus; T. Liu; L. Lopes; M. Lorenz; L. Maier; A. Mangiarotti; J. Markert; V. Metag; B. Michalska; J. Michel; E. Morinière; J. Mousa; C. Müntz; R. Münzer; L. Naumann; J. Otwinowski; Y. C. Pachmayer; M. Palka; Y. Parpottas; V. Pechenov; O. Pechenova; J. Pietraszko; W. Przygoda; B. Ramstein; A. Reshetin; A. Rustamov; A. Sadovsky; P. Salabura; A. Schmah; E. Schwab; J. Siebenson; Yu G. Sobolev; S. Spataro; B. Spruck; H. Ströbele; J. Stroth; C. Sturm; A. Tarantola; K. Teilab; P. Tlusty; M. Traxler; R. Trebacz; H. Tsertos; V. Wagner; M. Weber; C. Wendisch; J. Wüstenfeld; S. Yurevich; Y. Zanevsky

doi:10.1103/PhysRevC.87.025201

Baryonic resonances close to the K̄N threshold: The case of Λ(1405) in pp collisions

G. Agakishiev, A. Balanda, D. Belver, A. Belyaev, J. C. Berger-Chen, A. Blanco, M. Böhmer, J. L. Boyard, P. Cabanelas, E. Castro, S. Chernenko, T. Christ, M. Destefanis, F. Dohrmann, A. Dybczak, E. Epple, L. Fabbietti, O. Fateev, P. Finocchiaro, P. FonteJ. Friese, I. Fröhlich, T. Galatyuk, J. A. Garzón, R. Gernhäuser, C. Gilardi, M. Golubeva, D. González-Díaz, F. Guber, M. Gumberidze, T. Heinz, T. Hennino, R. Holzmann, A. Ierusalimov, I. Iori, A. Ivashkin, M. Jurkovic, B. Kämpfer, K. Kanaki, T. Karavicheva, I. Koenig, W. Koenig, B. W. Kolb, R. Kotte, A. Krása, F. Krizek, R. Krücken, H. Kuc, W. Kühn, A. Kugler, A. Kurepin, R. Lalik, S. Lang, J. S. Lange, K. Lapidus, T. Liu, L. Lopes, M. Lorenz, L. Maier, A. Mangiarotti, J. Markert, V. Metag, B. Michalska, J. Michel, E. Morinière, J. Mousa, C. Müntz, R. Münzer, L. Naumann, J. Otwinowski, Y. C. Pachmayer, M. Palka, Y. Parpottas, V. Pechenov, O. Pechenova, J. Pietraszko, W. Przygoda, B. Ramstein, A. Reshetin, A. Rustamov, A. Sadovsky, P. Salabura, A. Schmah, E. Schwab, J. Siebenson, Yu G. Sobolev, S. Spataro, B. Spruck, H. Ströbele, J. Stroth, C. Sturm, A. Tarantola, K. Teilab, P. Tlusty, M. Traxler, R. Trebacz, H. Tsertos, V. Wagner, M. Weber, C. Wendisch, J. Wüstenfeld, S. Yurevich, Y. Zanevsky

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Abstract

We present an analysis of the Λ(1405) resonance produced in the reaction p+p→Σ^±+π+K⁺+p at 3.5GeV kinetic beam energy measured with the High Acceptance Dielectron Spectrometer (HADES) at the Gesellschaft für Schwerionenforschung (GSI). The two charged decay channels Λ(1405)→Σ^±π ^â̂ have been reconstructed for the first time in p+p collisions. The efficiency and acceptance-corrected spectral shapes show a peak position clearly below 1400MeV/c2. We find a total production cross section of σ_Λ(1405)=9.2±0.9±0.7-1.0+3.3μb. The analysis of its polar angle distribution suggests that the Λ(1405) is produced isotropically in the p-p center-of-mass system (CMS).

Original language	English
Article number	025201
Journal	Physical Review C - Nuclear Physics
Volume	87
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.87.025201
State	Published - 5 Feb 2013
Externally published	Yes

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10.1103/PhysRevC.87.025201

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Agakishiev, G., Balanda, A., Belver, D., Belyaev, A., Berger-Chen, J. C., Blanco, A., Böhmer, M., Boyard, J. L., Cabanelas, P., Castro, E., Chernenko, S., Christ, T., Destefanis, M., Dohrmann, F., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Finocchiaro, P., ... Zanevsky, Y. (2013). Baryonic resonances close to the K̄N threshold: The case of Λ(1405) in pp collisions. Physical Review C - Nuclear Physics, 87(2), Article 025201. https://doi.org/10.1103/PhysRevC.87.025201

@article{75f7f750fca84c5793b04b922739c53b,

title = "Baryonic resonances close to the {\=K}N threshold: The case of Λ(1405) in pp collisions",

abstract = "We present an analysis of the Λ(1405) resonance produced in the reaction p+p→Σ±+π+K++p at 3.5GeV kinetic beam energy measured with the High Acceptance Dielectron Spectrometer (HADES) at the Gesellschaft f{\"u}r Schwerionenforschung (GSI). The two charged decay channels Λ(1405)→Σ±π {\^a}̂ have been reconstructed for the first time in p+p collisions. The efficiency and acceptance-corrected spectral shapes show a peak position clearly below 1400MeV/c2. We find a total production cross section of σΛ(1405)=9.2±0.9±0.7-1.0+3.3μb. The analysis of its polar angle distribution suggests that the Λ(1405) is produced isotropically in the p-p center-of-mass system (CMS).",

author = "G. Agakishiev and A. Balanda and D. Belver and A. Belyaev and Berger-Chen, {J. C.} and A. Blanco and M. B{\"o}hmer and Boyard, {J. L.} and P. Cabanelas and E. Castro and S. Chernenko and T. Christ and M. Destefanis and F. Dohrmann and A. Dybczak and E. Epple and L. Fabbietti and O. Fateev and P. Finocchiaro and P. Fonte and J. Friese and I. Fr{\"o}hlich and T. Galatyuk and Garz{\'o}n, {J. A.} and R. Gernh{\"a}user and C. Gilardi and M. Golubeva and D. Gonz{\'a}lez-D{\'i}az and F. Guber and M. Gumberidze and T. Heinz and T. Hennino and R. Holzmann and A. Ierusalimov and I. Iori and A. Ivashkin and M. Jurkovic and B. K{\"a}mpfer and K. Kanaki and T. Karavicheva and I. Koenig and W. Koenig and Kolb, {B. W.} and R. Kotte and A. Kr{\'a}sa and F. Krizek and R. Kr{\"u}cken and H. Kuc and W. K{\"u}hn and A. Kugler and A. Kurepin and R. Lalik and S. Lang and Lange, {J. S.} and K. Lapidus and T. Liu and L. Lopes and M. Lorenz and L. Maier and A. Mangiarotti and J. Markert and V. Metag and B. Michalska and J. Michel and E. Morini{\`e}re and J. Mousa and C. M{\"u}ntz and R. M{\"u}nzer and L. Naumann and J. Otwinowski and Pachmayer, {Y. C.} and M. Palka and Y. Parpottas and V. Pechenov and O. Pechenova and J. Pietraszko and W. Przygoda and B. Ramstein and A. Reshetin and A. Rustamov and A. Sadovsky and P. Salabura and A. Schmah and E. Schwab and J. Siebenson and Sobolev, {Yu G.} and S. Spataro and B. Spruck and H. Str{\"o}bele and J. Stroth and C. Sturm and A. Tarantola and K. Teilab and P. Tlusty and M. Traxler and R. Trebacz and H. Tsertos and V. Wagner and M. Weber and C. Wendisch and J. W{\"u}stenfeld and S. Yurevich and Y. Zanevsky",

year = "2013",

month = feb,

day = "5",

doi = "10.1103/PhysRevC.87.025201",

language = "English",

volume = "87",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

Agakishiev, G, Balanda, A, Belver, D, Belyaev, A, Berger-Chen, JC, Blanco, A, Böhmer, M, Boyard, JL, Cabanelas, P, Castro, E, Chernenko, S, Christ, T, Destefanis, M, Dohrmann, F, Dybczak, A, Epple, E, Fabbietti, L, Fateev, O, Finocchiaro, P, Fonte, P, Friese, J, Fröhlich, I, Galatyuk, T, Garzón, JA, Gernhäuser, R, Gilardi, C, Golubeva, M, González-Díaz, D, Guber, F, Gumberidze, M, Heinz, T, Hennino, T, Holzmann, R, Ierusalimov, A, Iori, I, Ivashkin, A, Jurkovic, M, Kämpfer, B, Kanaki, K, Karavicheva, T, Koenig, I, Koenig, W, Kolb, BW, Kotte, R, Krása, A, Krizek, F, Krücken, R, Kuc, H, Kühn, W, Kugler, A, Kurepin, A, Lalik, R, Lang, S, Lange, JS, Lapidus, K, Liu, T, Lopes, L, Lorenz, M, Maier, L, Mangiarotti, A, Markert, J, Metag, V, Michalska, B, Michel, J, Morinière, E, Mousa, J, Müntz, C, Münzer, R, Naumann, L, Otwinowski, J, Pachmayer, YC, Palka, M, Parpottas, Y, Pechenov, V, Pechenova, O, Pietraszko, J, Przygoda, W, Ramstein, B, Reshetin, A, Rustamov, A, Sadovsky, A, Salabura, P, Schmah, A, Schwab, E, Siebenson, J, Sobolev, YG, Spataro, S, Spruck, B, Ströbele, H, Stroth, J, Sturm, C, Tarantola, A, Teilab, K, Tlusty, P, Traxler, M, Trebacz, R, Tsertos, H, Wagner, V, Weber, M, Wendisch, C, Wüstenfeld, J, Yurevich, S & Zanevsky, Y 2013, 'Baryonic resonances close to the K̄N threshold: The case of Λ(1405) in pp collisions', Physical Review C - Nuclear Physics, vol. 87, no. 2, 025201. https://doi.org/10.1103/PhysRevC.87.025201

TY - JOUR

T1 - Baryonic resonances close to the K̄N threshold

T2 - The case of Λ(1405) in pp collisions

AU - Agakishiev, G.

AU - Balanda, A.

AU - Belver, D.

AU - Belyaev, A.

AU - Berger-Chen, J. C.

AU - Blanco, A.

AU - Böhmer, M.

AU - Boyard, J. L.

AU - Cabanelas, P.

AU - Castro, E.

AU - Chernenko, S.

AU - Christ, T.

AU - Destefanis, M.

AU - Dohrmann, F.

AU - Dybczak, A.

AU - Epple, E.

AU - Fabbietti, L.

AU - Fateev, O.

AU - Finocchiaro, P.

AU - Fonte, P.

AU - Friese, J.

AU - Fröhlich, I.

AU - Galatyuk, T.

AU - Garzón, J. A.

AU - Gernhäuser, R.

AU - Gilardi, C.

AU - Golubeva, M.

AU - González-Díaz, D.

AU - Guber, F.

AU - Gumberidze, M.

AU - Heinz, T.

AU - Hennino, T.

AU - Holzmann, R.

AU - Ierusalimov, A.

AU - Iori, I.

AU - Ivashkin, A.

AU - Jurkovic, M.

AU - Kämpfer, B.

AU - Kanaki, K.

AU - Karavicheva, T.

AU - Koenig, I.

AU - Koenig, W.

AU - Kolb, B. W.

AU - Kotte, R.

AU - Krása, A.

AU - Krizek, F.

AU - Krücken, R.

AU - Kuc, H.

AU - Kühn, W.

AU - Kugler, A.

AU - Kurepin, A.

AU - Lalik, R.

AU - Lang, S.

AU - Lange, J. S.

AU - Lapidus, K.

AU - Liu, T.

AU - Lopes, L.

AU - Lorenz, M.

AU - Maier, L.

AU - Mangiarotti, A.

AU - Markert, J.

AU - Metag, V.

AU - Michalska, B.

AU - Michel, J.

AU - Morinière, E.

AU - Mousa, J.

AU - Müntz, C.

AU - Münzer, R.

AU - Naumann, L.

AU - Otwinowski, J.

AU - Pachmayer, Y. C.

AU - Palka, M.

AU - Parpottas, Y.

AU - Pechenov, V.

AU - Pechenova, O.

AU - Pietraszko, J.

AU - Przygoda, W.

AU - Ramstein, B.

AU - Reshetin, A.

AU - Rustamov, A.

AU - Sadovsky, A.

AU - Salabura, P.

AU - Schmah, A.

AU - Schwab, E.

AU - Siebenson, J.

AU - Sobolev, Yu G.

AU - Spataro, S.

AU - Spruck, B.

AU - Ströbele, H.

AU - Stroth, J.

AU - Sturm, C.

AU - Tarantola, A.

AU - Teilab, K.

AU - Tlusty, P.

AU - Traxler, M.

AU - Trebacz, R.

AU - Tsertos, H.

AU - Wagner, V.

AU - Weber, M.

AU - Wendisch, C.

AU - Wüstenfeld, J.

AU - Yurevich, S.

AU - Zanevsky, Y.

PY - 2013/2/5

Y1 - 2013/2/5

N2 - We present an analysis of the Λ(1405) resonance produced in the reaction p+p→Σ±+π+K++p at 3.5GeV kinetic beam energy measured with the High Acceptance Dielectron Spectrometer (HADES) at the Gesellschaft für Schwerionenforschung (GSI). The two charged decay channels Λ(1405)→Σ±π â̂ have been reconstructed for the first time in p+p collisions. The efficiency and acceptance-corrected spectral shapes show a peak position clearly below 1400MeV/c2. We find a total production cross section of σΛ(1405)=9.2±0.9±0.7-1.0+3.3μb. The analysis of its polar angle distribution suggests that the Λ(1405) is produced isotropically in the p-p center-of-mass system (CMS).

AB - We present an analysis of the Λ(1405) resonance produced in the reaction p+p→Σ±+π+K++p at 3.5GeV kinetic beam energy measured with the High Acceptance Dielectron Spectrometer (HADES) at the Gesellschaft für Schwerionenforschung (GSI). The two charged decay channels Λ(1405)→Σ±π â̂ have been reconstructed for the first time in p+p collisions. The efficiency and acceptance-corrected spectral shapes show a peak position clearly below 1400MeV/c2. We find a total production cross section of σΛ(1405)=9.2±0.9±0.7-1.0+3.3μb. The analysis of its polar angle distribution suggests that the Λ(1405) is produced isotropically in the p-p center-of-mass system (CMS).

UR - http://www.scopus.com/inward/record.url?scp=84873643039&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.87.025201

DO - 10.1103/PhysRevC.87.025201

M3 - Article

AN - SCOPUS:84873643039

SN - 0556-2813

VL - 87

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 2

M1 - 025201

ER -

Baryonic resonances close to the K̄N threshold: The case of Λ(1405) in pp collisions

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