Exclusive measurements of p p → d π+ π0: Double-pionic fusion without ABC effect

F. Kren; M. Bashkanov; D. Bogoslawsky; H. Calén; H. Clement; L. Demiroers; C. Ekström; K. Fransson; J. Greiff; L. Gustafsson; B. Höistad; G. Ivanov; M. Jacewicz; E. Jiganov; T. Johansson; O. Khakimova; S. Keleta; I. Koch; 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; T. Skorodko; B. Shwartz; J. Stepaniak; P. Thörngren-Engblom; V. Tikhomirov; G. J. Wagner; M. Wolke; A. Yamamoto; J. Zabierowski; J. Zlomanczuk

doi:10.1016/j.physletb.2009.12.061

Exclusive measurements of p p → d π⁺ π⁰: Double-pionic fusion without ABC effect

F. Kren, M. Bashkanov, D. Bogoslawsky, H. Calén, H. Clement^*, L. Demiroers, C. Ekström, K. Fransson, J. Greiff, L. Gustafsson, B. Höistad, G. Ivanov, M. Jacewicz, E. Jiganov, T. Johansson, O. Khakimova, S. Keleta, I. Koch, S. Kullander, A. KupśćP. Marciniewski, R. Meier, B. Morosov, C. Pauly, H. Petrén, Y. Petukhov, A. Povtorejko, R. J.M.Y. Ruber, K. Schönning, W. Scobel, T. Skorodko, 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

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

Abstract

Exclusive measurements of the reaction p p → d π⁺ π⁰ have been carried out at T_p = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector π⁺ π⁰ channel exhibits no enhancement at low invariant ππ masses, i.e. no ABC effect. Therefore this most basic isovector double-pionic fusion reaction qualifies as an ideal test case for the conventional t-channel ΔΔ excitation process. Indeed, the obtained differential distributions reveal the conventional t-channel ΔΔ mechanism as the appropriate reaction process, which also accounts for the observed energy dependence of the total cross section.

Original language	English
Pages (from-to)	110-113
Number of pages	4
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	684
Issue number	2-3
DOIs	https://doi.org/10.1016/j.physletb.2009.12.061
Publication status	Published - 8 Feb 2010

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Kren, F., Bashkanov, M., Bogoslawsky, D., Calén, H., Clement, H., Demiroers, L., Ekström, C., Fransson, K., Greiff, J., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Khakimova, O., Keleta, S., Koch, I., Kullander, S., ... Zlomanczuk, J. (2010). Exclusive measurements of p p → d π⁺ π⁰: Double-pionic fusion without ABC effect. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 684(2-3), 110-113. https://doi.org/10.1016/j.physletb.2009.12.061

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title = "Exclusive measurements of p p → d π+ π0: Double-pionic fusion without ABC effect",

abstract = "Exclusive measurements of the reaction p p → d π+ π0 have been carried out at Tp = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector π+ π0 channel exhibits no enhancement at low invariant ππ masses, i.e. no ABC effect. Therefore this most basic isovector double-pionic fusion reaction qualifies as an ideal test case for the conventional t-channel ΔΔ excitation process. Indeed, the obtained differential distributions reveal the conventional t-channel ΔΔ mechanism as the appropriate reaction process, which also accounts for the observed energy dependence of the total cross section.",

author = "F. Kren and M. Bashkanov and D. Bogoslawsky and H. Cal{\'e}n and H. Clement and L. Demiroers and C. Ekstr{\"o}m and K. Fransson and J. Greiff 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 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 T. Skorodko 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 = "2010",

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day = "8",

doi = "10.1016/j.physletb.2009.12.061",

language = "English",

volume = "684",

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

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Kren, F, Bashkanov, M, Bogoslawsky, D, Calén, H, Clement, H, Demiroers, L, Ekström, C, Fransson, K, Greiff, J, Gustafsson, L, Höistad, B, Ivanov, G, Jacewicz, M, Jiganov, E, Johansson, T, Khakimova, O, Keleta, S, Koch, I, Kullander, S, Kupść, A, Marciniewski, P, Meier, R, Morosov, B, Pauly, C, Petrén, H, Petukhov, Y, Povtorejko, A, Ruber, RJMY, Schönning, K, Scobel, W, Skorodko, T, Shwartz, B, Stepaniak, J, Thörngren-Engblom, P, Tikhomirov, V, Wagner, GJ, Wolke, M, Yamamoto, A, Zabierowski, J & Zlomanczuk, J 2010, 'Exclusive measurements of p p → d π⁺ π⁰: Double-pionic fusion without ABC effect', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 684, no. 2-3, pp. 110-113. https://doi.org/10.1016/j.physletb.2009.12.061

TY - JOUR

T1 - Exclusive measurements of p p → d π+ π0

T2 - Double-pionic fusion without ABC effect

AU - Kren, F.

AU - Bashkanov, M.

AU - Bogoslawsky, D.

AU - Calén, H.

AU - Clement, H.

AU - Demiroers, L.

AU - Ekström, C.

AU - Fransson, K.

AU - Greiff, J.

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 - 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 - Skorodko, T.

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 - 2010/2/8

Y1 - 2010/2/8

N2 - Exclusive measurements of the reaction p p → d π+ π0 have been carried out at Tp = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector π+ π0 channel exhibits no enhancement at low invariant ππ masses, i.e. no ABC effect. Therefore this most basic isovector double-pionic fusion reaction qualifies as an ideal test case for the conventional t-channel ΔΔ excitation process. Indeed, the obtained differential distributions reveal the conventional t-channel ΔΔ mechanism as the appropriate reaction process, which also accounts for the observed energy dependence of the total cross section.

AB - Exclusive measurements of the reaction p p → d π+ π0 have been carried out at Tp = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector π+ π0 channel exhibits no enhancement at low invariant ππ masses, i.e. no ABC effect. Therefore this most basic isovector double-pionic fusion reaction qualifies as an ideal test case for the conventional t-channel ΔΔ excitation process. Indeed, the obtained differential distributions reveal the conventional t-channel ΔΔ mechanism as the appropriate reaction process, which also accounts for the observed energy dependence of the total cross section.

UR - http://www.scopus.com/inward/record.url?scp=74549171682&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2009.12.061

DO - 10.1016/j.physletb.2009.12.061

M3 - Article

AN - SCOPUS:74549171682

SN - 0370-2693

VL - 684

SP - 110

EP - 113

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 - 2-3

ER -

Exclusive measurements of p p → d π+ π0: Double-pionic fusion without ABC effect

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Exclusive measurements of p p → d π⁺ π⁰: Double-pionic fusion without ABC effect