Beam-spin asymmetry Σ for Σ− hyperon photoproduction off the neutron

Zachariou, N.; Munevar, E.; Berman, B.L.; Bydžovský, P.; Cieplý, A.; Feldman, G.; Ilieva, Y.; Nadel-Turonski, P.; Skoupil, D.; Sarantsev, A.V.; Watts, D.P.; Amaryan, M.J.; Angelini, G.; Armstrong, W.R.; Atac, H.; Avakian, H.; Barion, L.; Bashkanov, M.; Battaglieri, M.; Bedlinskiy, I.; Benmokhtar, F.; Bianconi, A.; Biondo, L.; Biselli, A.S.; Bondi, M.; Bossù, F.; Boiarinov, S.; Briscoe, W.J.; Brooks, W.K.; Bulumulla, D.; Burkert, V.D.; Carman, D.S.; Carvajal, J.C.; Celentano, A.; Chatagnon, P.; Chetry, T.; Ciullo, G.; Clark, L.; Cole, P.L.; Contalbrigo, M.; Costantini, G.; Crede, V.; D'Angelo, A.; Dashyan, N.; De Vita, R.; Defurne, M.; Deur, A.; Diehl, S.; Djalali, C.; Dupre, R.; Dugger, M.; Egiyan, H.; Ehrhart, M.; El Alaoui, A.; El Fassi, L.; Eugenio, P.; Fedotov, G.; Fegan, S.; Filippi, A.; Fradi, A.; Gavalian, G.; Gilfoyle, G.P.; Girod, F.X.; Gleason, C.; Golubenko, A.A.; Gothe, R.W.; Griffioen, K.A.; Guidal, M.; Hafidi, K.; Hakobyan, H.; Hattawy, M.; Hayward, T.B.; Heddle, D.; Hicks, K.; Hobart, A.; Holtrop, M.; Ireland, D.G.; Isupov, E.L.; Jenkins, D.; Jo, H.S.; Joo, K.; Keller, D.; Khanal, A.; Khandaker, M.; Kim, A.; Klein, F.J.; Kripko, A.; Kubarovsky, V.; Lanza, L.; Leali, M.; Livingston, K.; MacGregor, I.J.D.; Marchand, D.; Markov, N.; Marsicano, L.; Mascagna, V.; McKinnon, B.; Migliorati, S.; Mineeva, T.; Mirazita, M.; Mokeev, V.; Munoz Camacho, C.; Nadel-Turonski, P.; Neupane, K.; Niccolai, S.; Niculescu, G.; O'Connell, T.R.; Osipenko, M.; Ostrovidov, A.I.; Pandey, P.; Paolone, M.; Pappalardo, L.L.; Paremuzyan, R.; Pasyuk, E.; Phelps, W.; Pogorelko, O.; Price, J.W.; Prok, Y.; Raue, B.A.; Ripani, M.; Ritman, J.; Rizzo, A.; Rosner, G.; Rowley, J.; Sabatie, F.; Salgado, C.; Schmidt, A.; Schumacher, R.A.; Sharabian, Y.G.; Shirokov, E.V.; Shrestha, U.; Sokhan, D.; Soto, O.; Sparveris, N.; Stepanyan, S.; Stoler, P.; Strakovsky, I.I.; Strauch, S.; Tyson, R.; Ungaro, M.; Venturelli, L.; Voskanyan, H.; Vossen, A.; Voutier, E.; Wei, K.; Wei, X.; Wishart, R.; Wood, M.H.; Yale, B.; Zhang, J.; Zhao, Z.W.

doi:10.1016/j.physletb.2022.136985

The purpose of this article is to give new constructions of linear orders which are minimal with respect to being non-σ-scattered. Specifically, we will show that Jensen's diamond principle implies that there is a minimal Countryman line, answering a question of Baumgartner. We also produce the first consistent examples of minimal non-sigma-scattered linear orders of cardinality greater than aleph1, as given a successor cardinal kappa+, we obtain such linear orderings of cardinality kappa+ with the additional property that their square is the union of kappa-many chains. We give two constructions: directly building such examples using forcing, and also deriving their existence from combinatorial principles. The latter approach shows that such minimal non-sigma-scattered linear orders of cardinality kappa+ exist for every infinite cardinal kappa in Gödel's constructible universe, and also (using work of Rinot [28]) that examples must exist at successors of singular strong limit cardinals in the absence of inner models satisfying the existence of a measurable cardinal mu of Mitchell order mu++.

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