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| Title: | Isotensor Dibaryon in the pp →ppπ+π- Reaction? |
| Authors: | Goswami, A. Roy, Ankhi |
| Keywords: | Atomic physics;Physics;Differential cross section;Energy regions;Exclusive measurements;Meson exchange;Resonance excitation;Total and differential cross section;Hadrons;article;calculation;excitation;meson |
| Issue Date: | 2018 |
| Publisher: | American Physical Society |
| Citation: | Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berłowski, M., . . . Zurek, M. (2018). Isotensor dibaryon in the pp →ppπ+π- reaction? Physical Review Letters, 121(5) doi:10.1103/PhysRevLett.121.052001 |
| 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. © 2018 American Physical Society. |
| URI: | https://doi.org/10.1103/PhysRevLett.121.052001 https://dspace.iiti.ac.in/handle/123456789/8233 |
| ISSN: | 0031-9007 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Physics |
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