학술논문
Measurement of nuclear transparency ratios for protons and neutrons
Document Type
article
Author
M. Duer; O. Hen; E. Piasetzky; L.B. Weinstein; A. Schmidt; I. Korover; E.O. Cohen; H. Hakobyan; S. Adhikari; G. Angelini; H. Avakian; C. Ayerbe Gayoso; L. Barion; M. Battaglieri; A. Beck; I. Bedlinskiy; A.S. Biselli; S. Boiarinov; W.J. Briscoe; W. Brooks; V.D. Burkert; F. Cao; D.S. Carman; A. Celentano; P. Chatagnon; T. Chetry; G. Ciullo; P.L. Cole; M. Contalbrigo; O. Cortes; V. Crede; R. Cruz Torres; A. D'Angelo; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; S. Diehl; C. Djalali; R. Dupre; Burcu Duran; H. Egiyan; M. Ehrhart; A. El Alaoui; L. El Fassi; P. Eugenio; A. Filippi; T.A. Forest; G.P. Gilfoyle; F.X. Girod; E. Golovatch; R.W. Gothe; K.A. Griffioen; M. Guidal; L. Guo; K. Hafidi; C. Hanretty; N. Harrison; M. Hattawy; F. Hauenstein; T.B. Hayward; D. Heddle; M. Holtrop; Y. Ilieva; D.G. Ireland; B.S. Ishkhanov; E.L. Isupov; H.S. Jo; S. Johnston; K. Joo; S. Joosten; D. Keller; G. Khachatryan; M. Khachatryan; A. Khanal; M. Khandaker; A. Kim; W. Kim; A. Klein; F.J. Klein; V. Kubarovsky; S.E. Kuhn; S.V. Kuleshov; L. Lanza; G. Laskaris; P. Lenisa; K. Livingston; I.J.D. MacGregor; D. Marchand; B. McKinnon; S. Mey-Tal Beck; T. Mineeva; M. Mirazita; V. Mokeev; R.A. Montgomery; A. Movsisyan; C. Munoz Camacho; B. Mustapha; P. Nadel-Turonski; S. Niccolai; G. Niculescu; M. Osipenko; A.I. Ostrovidov; M. Paolone; L.L. Pappalardo; R. Paremuzyan; E. Pasyuk; M. Patsyuk; D. Payette; J. Price; D. Pocanic; O. Pogorelko; Y. Prok; D. Protopopescu; B.A. Raue; M. Ripani; D. Riser; A. Rizzo; G. Rosner; P. Rossi; F. Sabatié; C. Salgado; B.A. Schmookler; R.A. Schumacher; E.P. Segarra; Y.G. Sharabian; Iu. Skorodumina; D. Sokhan; O. Soto; N. Sparveris; S. Stepanyan; S. Strauch; M. Taiuti; J.A. Tan; M. Ungaro; H. Voskanyan; E. Voutier; R. Wang; X. Wei; N. Zachariou; J. Zhang; Z.W. Zhao; X. Zheng
Source
Physics Letters B, Vol 797, Iss , Pp - (2019)
Subject
Language
English
ISSN
0370-2693
Abstract
This paper presents, for the first time, measurements of neutron transparency ratios for nuclei relative to C measured using the (e,e′n) reaction, spanning measured neutron momenta of 1.4 to 2.4 GeV/c. The transparency ratios were extracted in two kinematical regions, corresponding to knockout of mean-field nucleons and to the breakup of Short-Range Correlated nucleon pairs. The extracted neutron transparency ratios are consistent with each other for the two measured kinematical regions and agree with the proton transparencies extracted from new and previous (e,e′p) measurements, including those from neutron-rich nuclei such as lead. The data also agree with and confirm the Glauber approximation that is commonly used to interpret experimental data. The nuclear-mass-dependence of the extracted transparencies scales as Aα with α=−0.289±0.007, which is consistent with nuclear-surface dominance of the reactions.