Archivio Istituzionale della RicercaIn spring 2003 the FINUDA detector was installed at the ϕ factory DAΦNE in the Laboratori Nazionali di Frascati of INFN (Italy). In October 2003 the commissioning of the apparatus was accomplished and the first data taking started with a set of nuclear targets 6Li, 7Li, natC, 27Al, 51V. The data collection will continue until a total integrated luminosity of 250 pb−1250 pb−1 is recorded. Light and medium A hypernuclei will be abundantly produced by the strangeness exchange reaction induced by the stopped K−K− coming from the decay of ϕ(1020)ϕ(1020) mesons. The aim of the experiment is to simultaneously measure the excitation energy spectra of the produced hypernuclei, with a resolution better than 1 MeV, the lifetime of the Λ embedded in the different hypernuclei and the partial widths ΓπΓπ, ΓnpΓnp and ΓnnΓnn for mesonic and non-mesonic hypernuclear decays. Information on neutron-rich hypernuclei and rare hypernuclear two-body decays might be available too, with the statistics that will be collected at the end of the run. In the present paper, first results concerning in-beam detector calibration, spectrometer performances and very preliminary hypernuclear formation and decay spectra will be presented.
First results from the FINUDA experiment at DAΦNE / Agnello, Michelangelo; G., Beer; L., Benussi; M., Bertani; S., Bianco; E., Botta; T., Bressani; L., Busso; D., Calvo; P., Camerini; P., Cerello; B., Dalena; F., De Mori; G., D'Erasmo; D., Di Santo; F. L., Fabbri; D., Faso; A., Feliciello; A., Filippi; V., Filippini; E. M., Fiore; H., Fujioka; P., Gianotti; N., Grion; A., Krasnoperov; V., Lucherini; S., Marcello; T., Maruta; N., Mirfakhrai; O., Morra; A., Olin; E., Pace; M., Palomba; A., Pantaleo; A., Panzarasa; V., Paticchio; S., Piano; F., Pompili; R., Rui; G., Simonetti; H., So; S., Tomassini; R., Wheadon; A., Zenoni. - In: NUCLEAR PHYSICS. A. - ISSN 0375-9474. - 754:(2005), pp. 399-409. (Intervento presentato al convegno 8th International Conference on Hypernuclear and Strange Particle Physics tenutosi a Newport News, VA (USA) nel 14–18 October 2003) [10.1016/j.nuclphysa.2005.01.033].
First results from the FINUDA experiment at DAΦNE
AGNELLO, MICHELANGELO;
2005
Abstract
In spring 2003 the FINUDA detector was installed at the ϕ factory DAΦNE in the Laboratori Nazionali di Frascati of INFN (Italy). In October 2003 the commissioning of the apparatus was accomplished and the first data taking started with a set of nuclear targets 6Li, 7Li, natC, 27Al, 51V. The data collection will continue until a total integrated luminosity of 250 pb−1250 pb−1 is recorded. Light and medium A hypernuclei will be abundantly produced by the strangeness exchange reaction induced by the stopped K−K− coming from the decay of ϕ(1020)ϕ(1020) mesons. The aim of the experiment is to simultaneously measure the excitation energy spectra of the produced hypernuclei, with a resolution better than 1 MeV, the lifetime of the Λ embedded in the different hypernuclei and the partial widths ΓπΓπ, ΓnpΓnp and ΓnnΓnn for mesonic and non-mesonic hypernuclear decays. Information on neutron-rich hypernuclei and rare hypernuclear two-body decays might be available too, with the statistics that will be collected at the end of the run. In the present paper, first results concerning in-beam detector calibration, spectrometer performances and very preliminary hypernuclear formation and decay spectra will be presented.
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https://hdl.handle.net/11583/1795813
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