Determination of N* amplitudes from associated strangeness production in p+p collisions
- R. Münzer
- L. Fabbietti
- E. Epple
- S. Lu
- P. Klose
- F. Hauenstein
- N. Herrmann
- D. Grzonka
- Y. Leifels
- M. Maggiora
- D. Pleiner
- B. Ramstein
- J. Ritman
- E. Roderburg
- P. Salabura
- A. Sarantsev
- Z. Basrak
- P. Buehler
- M. Cargnelli
- R. Čaplar
- H. Clement
- O. Czerwiakowa
- I. Deppner
- M. Dželalija
- W. Eyrich
- Z. Fodor
- P. Gasik
- I. Gašparić
- A. Gillitzer
- Y. Grishkin
- O.N. Hartmann
- K.D. Hildenbrand
- B. Hong
- T.I. Kang
- J. Kecskemeti
- Y.J. Kim
- M. Kirejczyk
- M. Kiš
- P. Koczon
- R. Kotte
- A. Lebedev
- A. Le Fèvre
- J.L. Liu
- V. Manko
- J. Marton
- T. Matulewicz
- K. Piasecki
- F. Rami
- A. Reischl
- M.S. Ryu
- P. Schmidt
- Z. Seres
- B. Sikora
- K.S. Sim
- K. Siwek-Wilczyńska
- V. Smolyankin
- K. Suzuki
- Z. Tymiński
- P. Wagner
- I. Weber
- E. Widmann
- K. Wiśniewski
- Z.G. Xiao
- T. Yamasaki
- I. Yushmanov
- P. Wintz
- Y. Zhang
- A. Zhilin
- V. Zinyuk
- J. Zmeskal
DOIAbstract
We present the first determination of the energy-dependent amplitudes of N⁎ resonances extracted from their decay in KΛ pairs in p+p→pK+Λ reactions. A combined Partial Wave Analysis of seven data samples with exclusively reconstructed p+p→pK+Λ events measured by the COSY-TOF, DISTO, FOPI and HADES Collaborations in fixed target experiments at kinetic energies between 2.14 to 3.5 GeV is used to determine the amplitude of the resonant and non-resonant contributions into the associated strangeness final state. The contribution of seven N⁎ resonances with masses between 1650 MeV/c2 and 1900 MeV/c2 for an excess energy between 0 and 600 MeV has been considered. The Σ–p cusp and final state interactions for the p–Λ channel are also included as co...
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