The antineutron-proton total doss section has been measured in the low momentum range 50-400 MeV/c (below 100 MeV/c for the first time). The measurement was performed at LEAR (CERN) by the OBELIX experiment, thanks to its unique antineutron beam facility. A thick target transmission technique has been used. The measured total cross section shows an anomalous behaviour below 100 MeV/c. A dominance of the isospin I = 0 channel over the I = 1 one at low energy is clearly deduced. (C) 2000 Elsevier Science B.V. All lights reserved.
Antineutron-proton total cross section from 50 to 400 MeV/c / F. Iazzi;A. Feliciello;M. Agnello;M. Astrua;E. Botta;T. Bressani;D. Calvo;S. Costa;F. D'Isep;A. Filippi;S. Marcello;B. Minetti;N. Mirfakhraee;F. Balestra;M. P. Bussa;L. Busso;P. Cerello;O. Denisov;L. Ferrero;R. Garfagnini;A. Maggiora;A. Panzarasa;D. Panzieri;F. Tosello;A. Bertin;M. Bruschi;M. Capponi;S. D. Castro;R. Dona;D. Galli;B. Giacobbe;U. Marconi;I. Massa;M. Piccinini;M. Poli;N. S. Cesari;R. Spighi;V. Vagnoni;S. Vecchi;M. Villa;A. Vitale;A. Zoccoli;A. Bianconi;G. Bonomi;E. L. Rizzini;L. Venturelli;A. Zenoni;C. Cicalo;A. Masoni;S. Mauro;G. Puddu;S. Serci;G. Usai;O. E. Gorchakov;S. N. Prakhov;A. M. Rozhdestvensky;V. I. Tretyak;P. Gianotti;C. Guaraldo;A. Lanaro;V. Lucherini;C. Petrascu;M. Lombardi;R. A. Ricci;L. Vannucci;G. Bendiscioli;A. Fontana;P. Montagna;A. Rotondi;P. Salvini;S. Tessaro. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 475(2000), pp. 378-385. [10.1016/S0370-2693(00)00086-1]
Titolo: | Antineutron-proton total cross section from 50 to 400 MeV/c | |
Autori: | ||
Data di pubblicazione: | 2000 | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/S0370-2693(00)00086-1 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/11583/2500776