Exclusive measurement of the pp → nnπ+π+ reaction at 1.1 GeV

T. Skorodko; M. Bashkanov; D. Bogoslawsky; H. Calén; H. Clement; E. Doroshkevich; L. Demiroers; C. Ekström; K. Fransson; L. Gustafsson; B. Höistad; G. Ivanov; M. Jacewicz; E. Jiganov; T. Johansson; O. Khakimova; S. Keleta; I. Koch; F. Kren; S. Kullander; A. Kupść; P. Marciniewski; R. Meier; B. Morosov; C. Pauly; H. Petrén; Y. Petukhov; A. Povtorejko; R. J.M.Y. Ruber; K. Schönning; W. Scobel; B. Shwartz; J. Stepaniak; P. Thörngren-Engblom; V. Tikhomirov; G. J. Wagner; M. Wolke; A. Yamamoto; J. Zabierowski; J. Zlomanczuk

doi:10.1140/epja/i2011-11108-2

Exclusive measurement of the pp → nnπ⁺π⁺ reaction at 1.1 GeV

T. Skorodko, M. Bashkanov, D. Bogoslawsky, H. Calén, H. Clement^*, E. Doroshkevich, L. Demiroers, C. Ekström, K. Fransson, L. Gustafsson, B. Höistad, G. Ivanov, M. Jacewicz, E. Jiganov, T. Johansson, O. Khakimova, S. Keleta, I. Koch, F. Kren, S. KullanderA. Kupść, P. Marciniewski, R. Meier, B. Morosov, C. Pauly, H. Petrén, Y. Petukhov, A. Povtorejko, R. J.M.Y. Ruber, K. Schönning, W. Scobel, B. Shwartz, J. Stepaniak, P. Thörngren-Engblom, V. Tikhomirov, G. J. Wagner, M. Wolke, A. Yamamoto, J. Zabierowski, J. Zlomanczuk

^*Corresponding author for this work

Physics

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Abstract

First exclusive data for the pp → nnπ⁺π⁺ reaction have been obtained at CELSIUS with the WASA detector setup at a beam energy of T_p = 1.1 GeV. Total and differential cross-sections disagree with theoretical calculations, which predict the ΔΔ excitation to be the dominant process at this beam energy. Instead, the data require the excitation of one of the nucleons to a higher-lying Δ state, preferably the Δ(1600)P₃₃, to be the leading process.

Original language	English
Article number	108
Number of pages	1
Journal	European Physical Journal A
Volume	47
Issue number	9
DOIs	https://doi.org/10.1140/epja/i2011-11108-2
Publication status	Published - 1 Jan 2011

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Skorodko, T., Bashkanov, M., Bogoslawsky, D., Calén, H., Clement, H., Doroshkevich, E., Demiroers, L., Ekström, C., Fransson, K., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Khakimova, O., Keleta, S., Koch, I., Kren, F., ... Zlomanczuk, J. (2011). Exclusive measurement of the pp → nnπ⁺π⁺ reaction at 1.1 GeV. European Physical Journal A, 47(9), Article 108. https://doi.org/10.1140/epja/i2011-11108-2

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title = "Exclusive measurement of the pp → nnπ+π+ reaction at 1.1 GeV",

abstract = "First exclusive data for the pp → nnπ+π+ reaction have been obtained at CELSIUS with the WASA detector setup at a beam energy of Tp = 1.1 GeV. Total and differential cross-sections disagree with theoretical calculations, which predict the ΔΔ excitation to be the dominant process at this beam energy. Instead, the data require the excitation of one of the nucleons to a higher-lying Δ state, preferably the Δ(1600)P33, to be the leading process.",

author = "T. Skorodko and M. Bashkanov and D. Bogoslawsky and H. Cal{\'e}n and H. Clement and E. Doroshkevich and L. Demiroers and C. Ekstr{\"o}m and K. Fransson and L. Gustafsson and B. H{\"o}istad and G. Ivanov and M. Jacewicz and E. Jiganov and T. Johansson and O. Khakimova and S. Keleta and I. Koch and F. Kren and S. Kullander and A. Kup{\'s}{\'c} and P. Marciniewski and R. Meier and B. Morosov and C. Pauly and H. Petr{\'e}n and Y. Petukhov and A. Povtorejko and Ruber, {R. J.M.Y.} and K. Sch{\"o}nning and W. Scobel and B. Shwartz and J. Stepaniak and P. Th{\"o}rngren-Engblom and V. Tikhomirov and Wagner, {G. J.} and M. Wolke and A. Yamamoto and J. Zabierowski and J. Zlomanczuk",

year = "2011",

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doi = "10.1140/epja/i2011-11108-2",

language = "English",

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Skorodko, T, Bashkanov, M, Bogoslawsky, D, Calén, H, Clement, H, Doroshkevich, E, Demiroers, L, Ekström, C, Fransson, K, Gustafsson, L, Höistad, B, Ivanov, G, Jacewicz, M, Jiganov, E, Johansson, T, Khakimova, O, Keleta, S, Koch, I, Kren, F, Kullander, S, Kupść, A, Marciniewski, P, Meier, R, Morosov, B, Pauly, C, Petrén, H, Petukhov, Y, Povtorejko, A, Ruber, RJMY, Schönning, K, Scobel, W, Shwartz, B, Stepaniak, J, Thörngren-Engblom, P, Tikhomirov, V, Wagner, GJ, Wolke, M, Yamamoto, A, Zabierowski, J & Zlomanczuk, J 2011, 'Exclusive measurement of the pp → nnπ⁺π⁺ reaction at 1.1 GeV', European Physical Journal A, vol. 47, no. 9, 108. https://doi.org/10.1140/epja/i2011-11108-2

TY - JOUR

T1 - Exclusive measurement of the pp → nnπ+π+ reaction at 1.1 GeV

AU - Skorodko, T.

AU - Bashkanov, M.

AU - Bogoslawsky, D.

AU - Calén, H.

AU - Clement, H.

AU - Doroshkevich, E.

AU - Demiroers, L.

AU - Ekström, C.

AU - Fransson, K.

AU - Gustafsson, L.

AU - Höistad, B.

AU - Ivanov, G.

AU - Jacewicz, M.

AU - Jiganov, E.

AU - Johansson, T.

AU - Khakimova, O.

AU - Keleta, S.

AU - Koch, I.

AU - Kren, F.

AU - Kullander, S.

AU - Kupść, A.

AU - Marciniewski, P.

AU - Meier, R.

AU - Morosov, B.

AU - Pauly, C.

AU - Petrén, H.

AU - Petukhov, Y.

AU - Povtorejko, A.

AU - Ruber, R. J.M.Y.

AU - Schönning, K.

AU - Scobel, W.

AU - Shwartz, B.

AU - Stepaniak, J.

AU - Thörngren-Engblom, P.

AU - Tikhomirov, V.

AU - Wagner, G. J.

AU - Wolke, M.

AU - Yamamoto, A.

AU - Zabierowski, J.

AU - Zlomanczuk, J.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - First exclusive data for the pp → nnπ+π+ reaction have been obtained at CELSIUS with the WASA detector setup at a beam energy of Tp = 1.1 GeV. Total and differential cross-sections disagree with theoretical calculations, which predict the ΔΔ excitation to be the dominant process at this beam energy. Instead, the data require the excitation of one of the nucleons to a higher-lying Δ state, preferably the Δ(1600)P33, to be the leading process.

AB - First exclusive data for the pp → nnπ+π+ reaction have been obtained at CELSIUS with the WASA detector setup at a beam energy of Tp = 1.1 GeV. Total and differential cross-sections disagree with theoretical calculations, which predict the ΔΔ excitation to be the dominant process at this beam energy. Instead, the data require the excitation of one of the nucleons to a higher-lying Δ state, preferably the Δ(1600)P33, to be the leading process.

UR - http://www.scopus.com/inward/record.url?scp=84155166899&partnerID=8YFLogxK

U2 - 10.1140/epja/i2011-11108-2

DO - 10.1140/epja/i2011-11108-2

M3 - Article

AN - SCOPUS:84155166899

SN - 1434-6001

VL - 47

JO - European Physical Journal A

JF - European Physical Journal A

IS - 9

M1 - 108

ER -

Exclusive measurement of the pp → nnπ+π+ reaction at 1.1 GeV

Abstract

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Exclusive measurement of the pp → nnπ⁺π⁺ reaction at 1.1 GeV