caa a22 4500 46580957X CHVBK 20180323112112.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF02782736 doi (NATIONALLICENCE)springer-10.1007/BF02782736 Complex potential analysis of antineutron annihilation on56Fe [Elektronische Daten] [P. Chessa, F. Murgia, P. Quarati] Summary: We have analyzed, by means of a complex optical potential, recent results of % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFUbGBgaqeaaaa!45BA! $$\bar n$$ annihilation on56Fe. The set of parameters of the % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFUbGBgaqeaaaa!45BA! $$\bar n$$ -56Fe potential has been extrapolated from those of the % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFUbGBgaqeaaaa!45BA! $$\bar n$$ -nucleus (12C,20Ne,27Al,40Ca,63Cu) interaction. We have calculated % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFWbaCgaqeaaaa!45BE! $$\bar p$$ -nucleus and % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFUbGBgaqeaaaa!45BA! $$\bar n$$ -12C reaction cross-sections; these are in agreement with the available experimental results. On the contrary, we have found disagreement, atp<300 MeV/c, between experimental and calculated % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFUbGBgaqeaaaa!45BA! $$\bar n$$ -56Fe cross-sections. This fact could indicate that the interaction of % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFUbGBgaqeaaaa!45BA! $$\bar n$$ ; in56Fe differs, in some features, from the one in12C and from the % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFWbaCgaqeaaaa!45BE! $$\bar p$$ -nucleus interaction. Before final, definitive conclusions, more accurate measurements of % MathType!MTEF!2!1!+-% feaafiart1ev1aaatuuDJXwAK1uy0Hwmaerbfv3ySLgzG0uy0Hgip5% wzamXvP5wqonvsaeHbfv3ySLgzaeXatLxBI9gBamXvP5wqSXMqHnxA% Jn0BKvguHDwzZbqehqvATv2CG4uz3bIuV1wyUbqehm0B1jxALjhiov% 2DaebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qq% aqFr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8% qqQ8frFve9Fve9Ff0dmeaaciGacmaadaWabiqaeaqbaqaagaaakeaa% iiaacuWFUbGBgaqeaaaa!45BA! $$\bar n$$ annihilation are required, particularly atp<300 MeV/c. Società Italiana di Fisica, 1990 Optical and diffraction models nationallicence Nucleon-induced reactions and scattering nationallicence Chessa P. INFN, Sezione di Cagliari, 09127, Cagliari aut Murgia F. INFN, Sezione di Cagliari, 09127, Cagliari aut Quarati P. INFN, Sezione di Cagliari, 09127, Cagliari aut Il Nuovo Cimento A (1965-1970) Società Italiana di Fisica 103/7(1990-07-01), 953-960 103:7<953 1990 103 40763 https://doi.org/10.1007/BF02782736 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02782736 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chessa P. INFN, Sezione di Cagliari, 09127, Cagliari aut NATIONALLICENCE 700 1- Murgia F. INFN, Sezione di Cagliari, 09127, Cagliari aut NATIONALLICENCE 700 1- Quarati P. INFN, Sezione di Cagliari, 09127, Cagliari aut NATIONALLICENCE 773 0- Il Nuovo Cimento A (1965-1970) Società Italiana di Fisica 103/7(1990-07-01), 953-960 103:7<953 1990 103 40763 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer