Abstract
The AMADEUS collaboration has the goal to perform unprecedented measurements in the field of the low-energy charged kaons-nuclei interactions, by implementing the existing KLOE detector with a dedicated setup in the inner region. The KLOE detector at DAΦNE represents a unique opportunity to perform a complete study of the Λ(1405) resonance through all its three Σπ decay channels. The importance of these measurements relies on the possibility to compare the different results for the various decay channels, investigating their contributions to the final resonance shape. In particular, one of the main differences between the neutral and charged Σπ channels is the presence of a second resonance, the Σ(1385), whose contribution to the final Λ(1405) spectra has to be evaluated and subtracted. Very promising preliminary results have been already obtained for the Σ 0π0 decay channel to which, for isospin selection rules, the Σ(1385) resonance can not decay, and for the Σ +π− decay channel analysis, and will be presented in this work.
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References
AMADEUS collaboration, AMADEUS phase-1: physics, setup and roll-in proposal, LNF internal release, LNF–07/24(IR) (2007)
AMADEUS collaboration, Towards exclusive antikaonic nuclear cluster search with AMADEUS. Nucl. Phys. A 804, 286 (2008)
Baldini, R., et al.: Proposal for a ϕ-factory. Report LNF-90/031(R) (1990)
Bossi, F., De Lucia, E., Lee-Franzini, J., Miscetti, S., Palutan, M., KLOE coll.: Precision Kaon and Hadron Physics with KLOE. Riv. Nuovo Cim. 31, 531–623 (2008)
Beringer, J., et al. (ParticleData Group): Review of Particle Physics. Phys. Rev. D 86, 010001 (2012)
Hyodo T., Jido D.: The nature of the ∧(1405) resonance in chiral dynamics. Prog. Part. Nucl. Phys. 67, 55 (2012)
Nacher J.C., Oset E., Toki H., Ramos A.: Photoproduction of the ∧(1405) on the proton and nuclei. Phys. Lett. B 455, 55–61 (1999)
Esmaili J., Akaishi Y., Yamazaki T.: Experimental confirmation of the ∧(1405) ansatz from resonant formation of a K-p quasibound state in K-absorption by 3He and 4He. Phys. Lett. B 686, 23–28 (2010)
Moriya, K., et al. (CLAS Collaboration): Measurement of the ΣΠ photoproduction line shapes near the ∧(1405). Phys. Rev. C 87, 035206 (2013)
Adinolfi, M., et al.: The tracking detector of the KLOE experiment. Nucl. Inst. Methods A 488, 51 (2002)
Adinolfi M. et al.: The QCAL tile calorimeter of KLOE. Nucl. Inst. Methods A 482, 364 (2002)
Piscicchia, K., et al.: Kaon-nuclei interaction studies at low energies (the AMADEUS project). PoS STORI11, 021 (2011)
Riley D. et al.: Study of Σ ±Π± production from negative kaons stopped in He4. Phys. Rev. D 11, 3065 (1975)
Carlson P.J., Danielsson O., Ekspong A.G., Frisk A.: Search for Y *0 production in K − captures in nuclei. Nucl. Phys. 74, 642 (1965)
Barbaro-Galtieri A., Smith F.M., Pareick J.W.: Investigation of Y * o (1405) production by K − at rest in emulsion. Phys. Lett. A 5(1), 63 (1963)
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Scordo, A., Curceanu, C., Piscicchia, K. et al. Study of the Λ(1405) Resonance Through its Neutral and Charged Decay Channels by AMADEUS at DAΦNE. Few-Body Syst 55, 741–744 (2014). https://doi.org/10.1007/s00601-013-0783-1
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DOI: https://doi.org/10.1007/s00601-013-0783-1