The p d → 3He η π0 reaction at Tp = 1450 MeV

K. Schönning; Chr Bargholtz; M. Bashkanov; M. Berłowski; D. Bogoslawsky; H. Calén; H. Clement; L. Demirörs; C. Ekström; K. Fransson; L. Gerén; L. Gustafsson; B. Höistad; G. Ivanov; M. Jacewicz; E. Jiganov; T. Johansson; S. Keleta; O. Khakimova; F. Kren; S. Kullander; A. Kupść; A. Kuzmin; K. Lindberg; P. Marciniewski; B. Morosov; W. Oelert; C. Pauly; H. Petrén; Y. Petukhov; A. Povtorejko; W. Scobel; R. Shafigullin; B. Shwartz; T. Skorodko; V. Sopov; J. Stepaniak; P. E. Tegnér; P. Thörngren Engblom; V. Tikhomirov; A. Turowiecki; G. J. Wagner; C. Wilkin; M. Wolke; J. Zabierowski; I. Zartova; J. Złomańczuk

doi:10.1016/j.physletb.2010.01.042

The p d → ³He η π⁰ reaction at T_p = 1450 MeV

K. Schönning^*, Chr Bargholtz, M. Bashkanov, M. Berłowski, D. Bogoslawsky, H. Calén, H. Clement, L. Demirörs, C. Ekström, K. Fransson, L. Gerén, L. Gustafsson, B. Höistad, G. Ivanov, M. Jacewicz, E. Jiganov, T. Johansson, S. Keleta, O. Khakimova, F. KrenS. Kullander, A. Kupść, A. Kuzmin, K. Lindberg, P. Marciniewski, B. Morosov, W. Oelert, C. Pauly, H. Petrén, Y. Petukhov, A. Povtorejko, W. Scobel, R. Shafigullin, B. Shwartz, T. Skorodko, V. Sopov, J. Stepaniak, P. E. Tegnér, P. Thörngren Engblom, V. Tikhomirov, A. Turowiecki, G. J. Wagner, C. Wilkin, M. Wolke, J. Zabierowski, I. Zartova, J. Złomańczuk

^*Corresponding author for this work

Physics

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

Abstract

The cross section for the p d → ³He η π⁰ reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring. The ³He was detected in coincidence with four photons from the decays of the two mesons. The data indicate that the production mechanism involves the formation of the Δ (1232) isobar. Although the beam energy does not allow the full peak of this resonance to be seen, the invariant mass distributions of all three pairs of final particles are well reproduced by a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the π⁰ momentum in the ³He π⁰ system.

Original language	English
Pages (from-to)	33-37
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	685
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2010.01.042
Publication status	Published - 22 Feb 2010

Keywords

Δ resonance
η, π meson production
Invariant-mass distribution

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10.1016/j.physletb.2010.01.042

Cite this

Schönning, K., Bargholtz, C., Bashkanov, M., Berłowski, M., Bogoslawsky, D., Calén, H., Clement, H., Demirörs, L., Ekström, C., Fransson, K., Gerén, L., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., ... Złomańczuk, J. (2010). The p d → ³He η π⁰ reaction at T_p = 1450 MeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 685(1), 33-37. https://doi.org/10.1016/j.physletb.2010.01.042

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title = "The p d → 3He η π0 reaction at Tp = 1450 MeV",

abstract = "The cross section for the p d → 3He η π0 reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring. The 3He was detected in coincidence with four photons from the decays of the two mesons. The data indicate that the production mechanism involves the formation of the Δ (1232) isobar. Although the beam energy does not allow the full peak of this resonance to be seen, the invariant mass distributions of all three pairs of final particles are well reproduced by a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the π0 momentum in the 3He π0 system.",

keywords = "Δ resonance, η, π meson production, Invariant-mass distribution",

author = "K. Sch{\"o}nning and Chr Bargholtz and M. Bashkanov and M. Ber{\l}owski and D. Bogoslawsky and H. Cal{\'e}n and H. Clement and L. Demir{\"o}rs and C. Ekstr{\"o}m and K. Fransson and L. Ger{\'e}n and L. Gustafsson and B. H{\"o}istad and G. Ivanov and M. Jacewicz and E. Jiganov and T. Johansson and S. Keleta and O. Khakimova and F. Kren and S. Kullander and A. Kup{\'s}{\'c} and A. Kuzmin and K. Lindberg and P. Marciniewski and B. Morosov and W. Oelert and C. Pauly and H. Petr{\'e}n and Y. Petukhov and A. Povtorejko and W. Scobel and R. Shafigullin and B. Shwartz and T. Skorodko and V. Sopov and J. Stepaniak and Tegn{\'e}r, {P. E.} and {Th{\"o}rngren Engblom}, P. and V. Tikhomirov and A. Turowiecki and Wagner, {G. J.} and C. Wilkin and M. Wolke and J. Zabierowski and I. Zartova and J. Z{\l}oma{\'n}czuk",

year = "2010",

month = feb,

day = "22",

doi = "10.1016/j.physletb.2010.01.042",

language = "English",

volume = "685",

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

issn = "0370-2693",

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Schönning, K, Bargholtz, C, Bashkanov, M, Berłowski, M, Bogoslawsky, D, Calén, H, Clement, H, Demirörs, L, Ekström, C, Fransson, K, Gerén, L, Gustafsson, L, Höistad, B, Ivanov, G, Jacewicz, M, Jiganov, E, Johansson, T, Keleta, S, Khakimova, O, Kren, F, Kullander, S, Kupść, A, Kuzmin, A, Lindberg, K, Marciniewski, P, Morosov, B, Oelert, W, Pauly, C, Petrén, H, Petukhov, Y, Povtorejko, A, Scobel, W, Shafigullin, R, Shwartz, B, Skorodko, T, Sopov, V, Stepaniak, J, Tegnér, PE, Thörngren Engblom, P, Tikhomirov, V, Turowiecki, A, Wagner, GJ, Wilkin, C, Wolke, M, Zabierowski, J, Zartova, I & Złomańczuk, J 2010, 'The p d → ³He η π⁰ reaction at T_p = 1450 MeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 685, no. 1, pp. 33-37. https://doi.org/10.1016/j.physletb.2010.01.042

TY - JOUR

T1 - The p d → 3He η π0 reaction at Tp = 1450 MeV

AU - Schönning, K.

AU - Bargholtz, Chr

AU - Bashkanov, M.

AU - Berłowski, M.

AU - Bogoslawsky, D.

AU - Calén, H.

AU - Clement, H.

AU - Demirörs, L.

AU - Ekström, C.

AU - Fransson, K.

AU - Gerén, L.

AU - Gustafsson, L.

AU - Höistad, B.

AU - Ivanov, G.

AU - Jacewicz, M.

AU - Jiganov, E.

AU - Johansson, T.

AU - Keleta, S.

AU - Khakimova, O.

AU - Kren, F.

AU - Kullander, S.

AU - Kupść, A.

AU - Kuzmin, A.

AU - Lindberg, K.

AU - Marciniewski, P.

AU - Morosov, B.

AU - Oelert, W.

AU - Pauly, C.

AU - Petrén, H.

AU - Petukhov, Y.

AU - Povtorejko, A.

AU - Scobel, W.

AU - Shafigullin, R.

AU - Shwartz, B.

AU - Skorodko, T.

AU - Sopov, V.

AU - Stepaniak, J.

AU - Tegnér, P. E.

AU - Thörngren Engblom, P.

AU - Tikhomirov, V.

AU - Turowiecki, A.

AU - Wagner, G. J.

AU - Wilkin, C.

AU - Wolke, M.

AU - Zabierowski, J.

AU - Zartova, I.

AU - Złomańczuk, J.

PY - 2010/2/22

Y1 - 2010/2/22

N2 - The cross section for the p d → 3He η π0 reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring. The 3He was detected in coincidence with four photons from the decays of the two mesons. The data indicate that the production mechanism involves the formation of the Δ (1232) isobar. Although the beam energy does not allow the full peak of this resonance to be seen, the invariant mass distributions of all three pairs of final particles are well reproduced by a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the π0 momentum in the 3He π0 system.

AB - The cross section for the p d → 3He η π0 reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring. The 3He was detected in coincidence with four photons from the decays of the two mesons. The data indicate that the production mechanism involves the formation of the Δ (1232) isobar. Although the beam energy does not allow the full peak of this resonance to be seen, the invariant mass distributions of all three pairs of final particles are well reproduced by a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the π0 momentum in the 3He π0 system.

KW - Δ resonance

KW - η, π meson production

KW - Invariant-mass distribution

UR - http://www.scopus.com/inward/record.url?scp=76049098926&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2010.01.042

DO - 10.1016/j.physletb.2010.01.042

M3 - Article

AN - SCOPUS:76049098926

SN - 0370-2693

VL - 685

SP - 33

EP - 37

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

ER -