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Measurement of the ω → π+π−π0 Dalitz plot distribution. / The WASA-at-COSY Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 770, 10.07.2017, p. 418-425.

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

Harvard

The WASA-at-COSY Collaboration 2017, 'Measurement of the ω → π+π−π0 Dalitz plot distribution', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 770, pp. 418-425. https://doi.org/10.1016/j.physletb.2017.03.050

APA

The WASA-at-COSY Collaboration (2017). Measurement of the ω → π+π−π0 Dalitz plot distribution. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 770, 418-425. https://doi.org/10.1016/j.physletb.2017.03.050

Vancouver

The WASA-at-COSY Collaboration. Measurement of the ω → π+π−π0 Dalitz plot distribution. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2017 Jul 10;770:418-425. doi: 10.1016/j.physletb.2017.03.050

Author

The WASA-at-COSY Collaboration. / Measurement of the ω → π+π−π0 Dalitz plot distribution. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2017 ; Vol. 770. pp. 418-425.

BibTeX

@article{3b2541880bd248ea812e69afc5fd9e0e,
title = "Measurement of the ω → π+π−π0 Dalitz plot distribution",
abstract = "Using the production reactions pd→He3ω and pp→ppω, the Dalitz plot distribution for the ω→π+π−π0 decay is studied with the WASA detector at COSY, based on a combined data sample of (4.408±0.042)×104 events. The Dalitz plot density is parametrised by a product of the P-wave phase space and a polynomial expansion in the normalised polar Dalitz plot variables Z and ϕ. For the first time, a deviation from pure P-wave phase space is observed with a significance of 4.1σ. The deviation is parametrised by a linear term 1+2αZ, with α determined to be +0.147±0.036, consistent with the expectations of ρ-meson-type final-state interactions of the P-wave pion pairs.",
keywords = "Decays of other mesons, Light mesons, Meson–meson interactions, MU(+)MU(-)GAMMA, TRANSITION FORM-FACTORS, DETECTOR, NA60, LIGHT VECTOR-MESONS, DECAYS, Meson-meson interactions, PI-PI-SCATTERING, DISPERSIVE ANALYSIS, ETA, PARITY",
author = "{The WASA-at-COSY Collaboration} and P. Adlarson and W. Augustyniak and W. Bardan and M. Bashkanov and Bergmann, {F. S.} and M. Ber{\l}owski and H. Bhatt and A. Bondar and M. B{\"u}scher and H. Cal{\'e}n and I. Ciepa{\l} and H. Clement and E. Czerwi{\'n}ski and K. Demmich and R. Engels and A. Erven and W. Erven and W. Eyrich and P. Fedorets and K. F{\"o}hl and K. Fransson and F. Goldenbaum and A. Goswami and K. Grigoryev and Gullstr{\"o}m, {C. O.} and L. Heijkenskj{\"o}ld and V. Hejny and N. H{\"u}sken and L. Jarczyk and T. Johansson and B. Kamys and G. Kemmerling and Khan, {F. A.} and G. Khatri and A. Khoukaz and O. Khreptak and Kirillov, {D. A.} and S. Kistryn and H. Kleines and B. K{\l}os and W. Krzemie{\'n} and P. Kulessa and A. Kup{\'s}{\'c} and A. Kuzmin and K. Lalwani and D. Lersch and B. Lorentz and A. Magiera and R. Maier and B. Shwartz",
note = "Publisher Copyright: {\textcopyright} 2017 The Author",
year = "2017",
month = jul,
day = "10",
doi = "10.1016/j.physletb.2017.03.050",
language = "English",
volume = "770",
pages = "418--425",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Measurement of the ω → π+π−π0 Dalitz plot distribution

AU - The WASA-at-COSY Collaboration

AU - Adlarson, P.

AU - Augustyniak, W.

AU - Bardan, W.

AU - Bashkanov, M.

AU - Bergmann, F. S.

AU - Berłowski, M.

AU - Bhatt, H.

AU - Bondar, A.

AU - Büscher, M.

AU - Calén, H.

AU - Ciepał, I.

AU - Clement, H.

AU - Czerwiński, E.

AU - Demmich, K.

AU - Engels, R.

AU - Erven, A.

AU - Erven, W.

AU - Eyrich, W.

AU - Fedorets, P.

AU - Föhl, K.

AU - Fransson, K.

AU - Goldenbaum, F.

AU - Goswami, A.

AU - Grigoryev, K.

AU - Gullström, C. O.

AU - Heijkenskjöld, L.

AU - Hejny, V.

AU - Hüsken, N.

AU - Jarczyk, L.

AU - Johansson, T.

AU - Kamys, B.

AU - Kemmerling, G.

AU - Khan, F. A.

AU - Khatri, G.

AU - Khoukaz, A.

AU - Khreptak, O.

AU - Kirillov, D. A.

AU - Kistryn, S.

AU - Kleines, H.

AU - Kłos, B.

AU - Krzemień, W.

AU - Kulessa, P.

AU - Kupść, A.

AU - Kuzmin, A.

AU - Lalwani, K.

AU - Lersch, D.

AU - Lorentz, B.

AU - Magiera, A.

AU - Maier, R.

AU - Shwartz, B.

N1 - Publisher Copyright: © 2017 The Author

PY - 2017/7/10

Y1 - 2017/7/10

N2 - Using the production reactions pd→He3ω and pp→ppω, the Dalitz plot distribution for the ω→π+π−π0 decay is studied with the WASA detector at COSY, based on a combined data sample of (4.408±0.042)×104 events. The Dalitz plot density is parametrised by a product of the P-wave phase space and a polynomial expansion in the normalised polar Dalitz plot variables Z and ϕ. For the first time, a deviation from pure P-wave phase space is observed with a significance of 4.1σ. The deviation is parametrised by a linear term 1+2αZ, with α determined to be +0.147±0.036, consistent with the expectations of ρ-meson-type final-state interactions of the P-wave pion pairs.

AB - Using the production reactions pd→He3ω and pp→ppω, the Dalitz plot distribution for the ω→π+π−π0 decay is studied with the WASA detector at COSY, based on a combined data sample of (4.408±0.042)×104 events. The Dalitz plot density is parametrised by a product of the P-wave phase space and a polynomial expansion in the normalised polar Dalitz plot variables Z and ϕ. For the first time, a deviation from pure P-wave phase space is observed with a significance of 4.1σ. The deviation is parametrised by a linear term 1+2αZ, with α determined to be +0.147±0.036, consistent with the expectations of ρ-meson-type final-state interactions of the P-wave pion pairs.

KW - Decays of other mesons

KW - Light mesons

KW - Meson–meson interactions

KW - MU(+)MU(-)GAMMA

KW - TRANSITION FORM-FACTORS

KW - DETECTOR

KW - NA60

KW - LIGHT VECTOR-MESONS

KW - DECAYS

KW - Meson-meson interactions

KW - PI-PI-SCATTERING

KW - DISPERSIVE ANALYSIS

KW - ETA

KW - PARITY

UR - http://www.scopus.com/inward/record.url?scp=85018901237&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2017.03.050

DO - 10.1016/j.physletb.2017.03.050

M3 - Article

AN - SCOPUS:85018901237

VL - 770

SP - 418

EP - 425

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

ER -

ID: 12691709