Standard

Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances. / The WASA-at-COSY Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 774, 10.11.2017, p. 599-607.

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

Harvard

The WASA-at-COSY Collaboration 2017, 'Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 774, pp. 599-607. https://doi.org/10.1016/j.physletb.2017.10.015

APA

The WASA-at-COSY Collaboration (2017). Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 774, 599-607. https://doi.org/10.1016/j.physletb.2017.10.015

Vancouver

The WASA-at-COSY Collaboration. Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2017 Nov 10;774:599-607. doi: 10.1016/j.physletb.2017.10.015

Author

The WASA-at-COSY Collaboration. / Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2017 ; Vol. 774. pp. 599-607.

BibTeX

@article{eaa39626e4984ddd84d5a0824da3d761,
title = "Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances",
abstract = "Exclusive measurements of the quasi-free pn→ppπ− and pp→ppπ0 reactions have been performed by means of pd collisions at Tp=1.2 GeV using the WASA detector setup at COSY. Total and differential cross sections have been obtained covering the energy region Tp=0.95–1.3 GeV (s=2.3–2.46 GeV), which includes the regions of Δ(1232), N⁎(1440) and d⁎(2380) resonance excitations. From these measurements the isoscalar single-pion production has been extracted, for which data existed so far only below Tp=1 GeV. We observe a substantial increase of this cross section around 1 GeV, which can be related to the Roper resonance N⁎(1440), the strength of which shows up isolated from the Δ resonance in the isoscalar (Nπ)I=0 invariant-mass spectrum. No evidence for a decay of the dibaryon resonance d⁎(2380) into the isoscalar (NNπ)I=0 channel is found. An upper limit of 180 μb (90% C.L.) corresponding to a branching ratio of 9% has been deduced.",
keywords = "Dibaryon resonance, Isoscalar part, Roper resonance, Single-pion production, PROTON-PROTON COLLISIONS, CROSS-SECTIONS, THRESHOLD, DECAY, WIDTH, SCATTERING, RANGE",
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 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 P. Marciniewski and B. Shwartz",
year = "2017",
month = nov,
day = "10",
doi = "10.1016/j.physletb.2017.10.015",
language = "English",
volume = "774",
pages = "599--607",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Isoscalar single-pion production in the region of Roper and d⁎(2380) resonances

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 - 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 - Marciniewski, P.

AU - Shwartz, B.

PY - 2017/11/10

Y1 - 2017/11/10

N2 - Exclusive measurements of the quasi-free pn→ppπ− and pp→ppπ0 reactions have been performed by means of pd collisions at Tp=1.2 GeV using the WASA detector setup at COSY. Total and differential cross sections have been obtained covering the energy region Tp=0.95–1.3 GeV (s=2.3–2.46 GeV), which includes the regions of Δ(1232), N⁎(1440) and d⁎(2380) resonance excitations. From these measurements the isoscalar single-pion production has been extracted, for which data existed so far only below Tp=1 GeV. We observe a substantial increase of this cross section around 1 GeV, which can be related to the Roper resonance N⁎(1440), the strength of which shows up isolated from the Δ resonance in the isoscalar (Nπ)I=0 invariant-mass spectrum. No evidence for a decay of the dibaryon resonance d⁎(2380) into the isoscalar (NNπ)I=0 channel is found. An upper limit of 180 μb (90% C.L.) corresponding to a branching ratio of 9% has been deduced.

AB - Exclusive measurements of the quasi-free pn→ppπ− and pp→ppπ0 reactions have been performed by means of pd collisions at Tp=1.2 GeV using the WASA detector setup at COSY. Total and differential cross sections have been obtained covering the energy region Tp=0.95–1.3 GeV (s=2.3–2.46 GeV), which includes the regions of Δ(1232), N⁎(1440) and d⁎(2380) resonance excitations. From these measurements the isoscalar single-pion production has been extracted, for which data existed so far only below Tp=1 GeV. We observe a substantial increase of this cross section around 1 GeV, which can be related to the Roper resonance N⁎(1440), the strength of which shows up isolated from the Δ resonance in the isoscalar (Nπ)I=0 invariant-mass spectrum. No evidence for a decay of the dibaryon resonance d⁎(2380) into the isoscalar (NNπ)I=0 channel is found. An upper limit of 180 μb (90% C.L.) corresponding to a branching ratio of 9% has been deduced.

KW - Dibaryon resonance

KW - Isoscalar part

KW - Roper resonance

KW - Single-pion production

KW - PROTON-PROTON COLLISIONS

KW - CROSS-SECTIONS

KW - THRESHOLD

KW - DECAY

KW - WIDTH

KW - SCATTERING

KW - RANGE

UR - http://www.scopus.com/inward/record.url?scp=85033730901&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2017.10.015

DO - 10.1016/j.physletb.2017.10.015

M3 - Article

AN - SCOPUS:85033730901

VL - 774

SP - 599

EP - 607

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: 9870471