在CERN n_TOF设施中测量从亚热能到800 keV的$^{14}$N(n,p)$^{14}$C截面
摘要：测量14N(n,p)14C的截面，从热能到谐振区域的范围内的首次单次测量，并包括第一共振的特征化，为Maxwell平均截面(MACS)提供计算。方法：时间飞行技术。使用CERN的中子时间飞行(n_TOF)设施的实验区域2(EAR-2)。 $^{10}$B(n,${alpha}$)$^7$Li和$^{235}$U(n,f)反应作为参考。同时运行两个检测系统，一个在束流上，另一个在束流外。用R矩阵代码sammy描述共振。结果：从亚热能到800 keV的能量范围内测量了截面，解析了两个第一共振(分别在492.7和644 keV处)。得到的热截面(1.809$pm$0.045 b)比最近两次测量略低一个标准偏差，但与ENDF/B-VIII.0和JEFF-3.3评估一致。确认了截面在几十keV的中子能量范围内与1/v能量依赖性。第一个共振在492.7 keV处的低能尾巴比评估值建议的要低，而整体共振强度与评估一致。结论：我们的实验首次在广泛的能量范围内确定了14N(n,p)截面。我们从亚热能到800 keV获得了高精度(2.5\%)的截面数据，并使用这些数据计算了kT = 5到kT = 100 keV的MACS。
作者：P. Torres-S''anchez (1), J. Praena (1), I. Porras (1), M. Sabat''e-Gilarte (2 and 3), C. Lederer-Woods (4), O. Aberle (2), V. Alcayne (5), S. Amaducci (6 and 7), J. Andrzejewski (8), L. Audouin (9), V. B''ecares (5), V. Babiano-Suarez (10), M. Bacak (2 and 11 and 12), M. Barbagallo (2 and 13), F. Bev{c}v''av{r} (14), G. Bellia (6 and 7), E. Berthoumieux (12), J. Billowes (15), D. Bosnar (16), A. Brown (17), M. Busso (18 and 19), M. Caama~no (20), L. Caballero (10), F. Calvi~no (21), M. Calviani (2), D. Cano-Ott (5), A. Casanovas (21), F. Cerutti (2), Y. H. Chen (9), E. Chiaveri (2 and 15 and 3), N. Colonna (13), G. Cort''es (21), M. A. Cort''es-Giraldo (3), L. Cosentino (6), S. Cristallo (18 and 22), L. A. Damone (13 and 23), M. Diakaki (24 and 2), M. Dietz (4), C. Domingo-Pardo (10), R. Dressler (25), E. Dupont (12), I. Dur''an (20), Z. Eleme (26), B. Fern''andez-Dom''inguez (20), A. Ferrari (2), F. J. Ferrer (3,27), P. Finocchiaro (6), V. Furman (28), K. G"obel (29), R. Garg (4), A. Gawlik-Ramik{e}ga (8), B. Geslot (30), S. Gilardoni (2), T. Glodariu (31), I. F. Gonc{c}alves (32), E. Gonz''alez-Romero (5), C. Guerrero (3), F. Gunsing (12), H. Harada (33), S. Heinitz (25), J. Heyse (34), D. G. Jenkins (17), E. Jericha (11), F. K"appeler (35), Y. Kadi (2), A. Kimura (33), N. Kivel (25), M. Kokkoris (24), Y. Kopatch (28), M. Krtiv{c}ka (14), D. Kurtulgil (29), I. Ladarescu (10), H. Leeb (11), J. Lerendegui-Marco (3), S. Lo Meo (36 and 37), S. J. Lonsdale (4), D. Macina (2), A. Manna (37 and 38), T. Mart''inez (5), A. Masi (2), C. Massimi (37 and 38), P. Mastinu (39), M. Mastromarco (2), F. Matteucci (40 and 41), E. A. Maugeri (25), A. Mazzone (13 and 42), E. Mendoza (5), A. Mengoni (36), V. Michalopoulou (24), P. M. Milazzo (40), F. Mingrone (2), A. Musumarra (6 and 7), A. Negret (31), R. Nolte (43), F. Og''allar (1), A. Oprea (31), N. Patronis (26), A. Pavlik (44), J. Perkowski (8), L. Piersanti (13 and 18 and 22), J. M. Quesada (3), D. Radeck (43), D. Ramos-Doval (9), T. Rauscher (45 and 46), R. Reifarth (29), D. Rochman (25), C. Rubbia (2), A. Saxena (47), P. Schillebeeckx (34), D. Schumann (25), A. G. Smith (15), N. V. Sosnin (15), A. Stamatopoulos (24), G. Tagliente (13), J. L. Tain (10), T. Talip (25), A. Tarife~no-Saldivia (21), L. Tassan-Got (2 and 24 and 9), A. Tsinganis (2), J. Ulrich (25), S. Urlass (2 and 48), S. Valenta (14), G. Vannini (37 and 38), V. Variale (13), P. Vaz (32), A. Ventura (37), V. Vlachoudis (2), R. Vlastou (24), A. Wallner (49), P. J. Woods (4), T. Wright (15), P. v{Z}ugec (16) (The n\_TOF Collaboration) ( (1) University of Granada, Spain, (2) European Organization for Nuclear Research (CERN), Switzerland, (3) Universidad de Sevilla, Spain, (4) School of Physics and Astronomy, University of Edinburgh, United Kingdom, (5) Centro de Investigaciones Energ''eticas Medioambientales y Tecnol''ogicas (CIEMAT), Spain, (6) INFN Laboratori Nazionali del Sud, Catania, Italy, (7) Department of Physics and Astronomy, University of Catania, Italy, (8) University of Lodz, Poland, (9) Institut de Physique Nucl''eaire, CNRS-IN2P3, Univ. Paris-Sud, Universit''e Paris-Saclay, F-91406 Orsay Cedex, France, (10) Instituto de F''isica Corpuscular, CSIC - Universidad de Valencia, Spain, (11) TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria, (12) CEA Irfu, Universit''e Paris-Saclay, F-91191 Gif-sur-Yvette, France, (13) Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy, (14) Charles University, Prague, Czech Republic, (15) University of Manchester, United Kingdom (16) Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia, (17) University of York, United Kingdom, (18) Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Italy, (19) Dipartimento di Fisica e Geologia, Universit`a di Perugia, Italy, (20) University of Santiago de Compostela, Spain, (21) Universitat Polit`ecnica de Catalunya, Spain, (22) Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Teramo, Italy, (23) Dipartimento Interateneo di Fisica, Universit`a degli Studi di Bari, Italy, (24) National Technical University of Athens, Greece, (25) Paul Scherrer Institut (PSI), Villigen, Switzerland, (26) University of Ioannina, Greece, (27) Centro Nacional de Aceleradores, Seville, Spain, (28) Joint Institute for Nuclear Research (JINR), Dubna, Russia, (29) Goethe University Frankfurt, Germany, (30) CEA Cadarache, DES, Saint-Paul-les-Durance 13108, France, (31) Horia Hulubei National Institute of Physics and Nuclear Engineering, Romania, (32) Instituto Superior T''ecnico, Lisbon, Portugal, (33) Japan Atomic Energy Agency (JAEA), Tokai-Mura, Japan, (34) European Commission, Joint Research Centre (JRC), Geel, Belgium, (35) Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany, (36) Agenzia nazionale per le nuove tecnologie (ENEA), Italy, (37) Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy, (38) Dipartimento di Fisica e Astronomia, Universit`a di Bologna, Italy, (39) INFN Laboratori Nazionali di Legnaro, Italy, (40) Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy, (41) Dipartimento di Astronomia, Universit`a di Trieste, Italy, (42) Consiglio Nazionale delle Ricerche, Bari, Italy, (43) Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany, (44) University of Vienna, Faculty of Physics, Vienna, Austria, (45) Department of Physics, University of Basel, Switzerland, (46) Centre for Astrophysics Research, University of Hertfordshire, United Kingdom, (47) Bhabha Atomic Research Centre (BARC), India, (48) Helmholtz-Zentrum Dresden-Rossendorf, Germany, (49) Australian National University, Canberra, Australia)
论文ID：2212.05128
分类：Nuclear Experiment
分类简称：nucl-ex
提交时间：2023-07-12