Adlarson, P., Augustyniak, W., Bardan, W. et al. (47 more authors) (2018) Isotensor Dibaryon in the pp →ppπ+π- Reaction? Physical Review Letters. 052001. ISSN 1079-7114
Abstract
Exclusive measurements of the quasifree pp→ppπ+π- reaction have been carried out at WASA@COSY by means of pd collisions at Tp=1.2 GeV. Total and differential cross sections have been extracted covering the energy region Tp=1.08-1.36 GeV, which is the region of N∗(1440) and Δ(1232)Δ(1232) resonance excitations. Calculations describing these excitations by t-channel meson exchange are at variance with the measured differential cross sections and underpredict substantially the experimental total cross section. An isotensor ΔN dibaryon resonance with I(JP)=2(1+) produced associatedly with a pion is able to overcome these deficiencies.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 American Physical Society |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 17 Sep 2018 14:20 |
Last Modified: | 01 Dec 2024 01:12 |
Published Version: | https://doi.org/10.1103/PhysRevLett.121.052001 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevLett.121.052001 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135824 |