7Be(n,α)4He Reaction and the Cosmological Lithium Problem: Measurement of the Cross Section in a Wide Energy Range at n_TOF at CERN

被引：86

作者：

Barbagallo, M. ^{[1
]}

Musumarra, A. ^{[2
,3
]}

Cosentino, L. ^{[3
]}

Maugeri, E. ^{[4
]}

Heinitz, S. ^{[4
]}

Mengoni, A. ^{[5
]}

Dressler, R. ^{[4
]}

Schumann, D. ^{[4
]}

Kaeppeler, F. ^{[6
]}

Colonna, N. ^{[1
]}

Finocchiaro, P. ^{[3
]}

Ayranov, M. ^{[7
]}

Damone, L. ^{[1
]}

Kivel, N. ^{[4
]}

Aberle, O. ^{[8
]}

Altstadt, S. ^{[9
]}

Andrzejewski, J. ^{[10
]}

Audouin, L. ^{[11
]}

Bacak, M. ^{[12
]}

Balibrea-Correa, J. ^{[13
]}

Barros, S. ^{[14
]}

Becares, V. ^{[13
]}

Becvar, F. ^{[15
]}

Beinrucker, C. ^{[9
]}

Berthoumieux, E. ^{[16
]}

Billowes, J. ^{[17
]}

Bosnar, D. ^{[18
]}

Brugger, M. ^{[8
]}

Caamano, M. ^{[19
]}

Calviani, M. ^{[8
]}

Calvino, F. ^{[20
]}

Cano-Ott, D. ^{[13
]}

Cardella, R. ^{[3
,8
]}

Casanovas, A. ^{[20
]}

Castelluccio, D. M. ^{[5
]}

Cerutti, F. ^{[8
]}

Chen, Y. H. ^{[11
]}

Chiaveri, E. ^{[8
]}

Cortes, G. ^{[20
]}

Cortes-Giraldo, M. A. ^{[21
]}

Cristallo, S. ^{[22
]}

Diakaki, M. ^{[23
]}

Domingo-Pardo, C. ^{[24
]}

Dupont, E. ^{[16
]}

Duran, I. ^{[19
]}

Fernandez-Dominguez, B. ^{[19
]}

Ferrari, A. ^{[8
]}

Ferreira, P. ^{[14
]}

Furman, W. ^{[25
]}

Ganesan, S. ^{[26
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy

[2] Univ Catania, DFA, I-95124 Catania, Italy

[3] Ist Nazl Fis Nucl, Lab Nazl Sud, Catania, Italy

[4] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[5] ENEA, Bologna, Italy

[6] Karlsruhe Inst Technol, Inst Kernphys, Karlsruhe, Germany

[7] European Commiss, DG Energy, Luxembourg, Luxembourg

[8] CERN, Geneva, Switzerland

[9] Goethe Univ Frankfurt, Frankfurt, Germany

[10] Uniwersytet Lodzki, Lodz, Poland

[11] IPN, CNRS, IN2P3, Orsay, France

[12] Vienna Univ Technol, Atominst Osterreich Univ, Vienna, Austria

[13] Ctr Invest Energet Medioambient & Tecnol CIEMAT, Madrid, Spain

[14] Univ Lisbon, Inst Super Tecn, C2TN, P-1699 Lisbon, Portugal

[15] Charles Univ Prague, Prague, Czech Republic

[16] CEA Saclay, IRFU, Gif Sur Yvette, France

[17] Univ Manchester, Oxford Rd, Manchester, Lancs, England

[18] Univ Zagreb, Fac Sci, Dept Phys, Zagreb 41000, Croatia

[19] Univ Santiago de Compostela, La Coruna, Spain

[20] Univ Politecn Cataluna, Barcelona, Spain

[21] Univ Seville, Seville, Spain

[22] INAF Osservatorio Astron Collurania, Teramo, Italy

[23] Natl Tech Univ Athens, GR-10682 Athens, Greece

[24] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain

[25] Joint Inst Nucl Res, Dubna, Russia

[26] Bhabha Atom Res Ctr, Bombay, Maharashtra, India

[27] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, Bucharest, Romania

[28] Japan Atom Energy Agcy, Tokai, Ibaraki, Japan

[29] European Commiss JRC, Inst Reference Mat & Measurements, Retieseweg 111, B-2440 Geel, Belgium

[30] Univ York, York, N Yorkshire, England

[31] Tokyo Inst Technol, Tokyo, Japan

[32] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH8 9YL, Midlothian, Scotland

[33] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

[34] Univ Bologna, Dipartimento Fis & Astron, I-40126 Bologna, Italy

[35] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Legnaro, Italy

[36] CNR IC, Bari, Italy

[37] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy

[38] Phys Tech Bundesanstalt, Braunschweig, Germany

[39] Univ Ioannina, GR-45110 Ioannina, Greece

[40] Univ Vienna, Fac Phys, A-1010 Vienna, Austria

[41] Univ Granada, E-18071 Granada, Spain

[42] Univ Hertfordshire, Sch Phys Astron & Math, Ctr Astrophys Res, Hatfield, Herts, England

[43] Univ Basel, Dept Phys, Basel, Switzerland

[44] Australian Natl Univ, Res Sch Phys & Engn, GPO Box 4, Canberra, ACT 0200, Australia

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 15期

基金：

英国工程与自然科学研究理事会;

关键词：

FACILITY; NUCLEI;

D O I：

10.1103/PhysRevLett.117.152701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The energy-dependent cross section of the (7)Bed(n,alpha)He-4 reaction, of interest for the so-called cosmological lithium problem in big bang nucleosynthesis, has been measured for the first time from 10 meV to 10 keV neutron energy. The challenges posed by the short half-life of Be-7 and by the low reaction cross section have been overcome at n_TOF thanks to an unprecedented combination of the extremely high luminosity and good resolution of the neutron beam in the new experimental area (EAR2) of the n_TOF facility at CERN, the availability of a sufficient amount of chemically pure Be-7, and a specifically designed experimental setup. Coincidences between the two alpha particles have been recorded in two Si-Be-7-Si arrays placed directly in the neutron beam. The present results are consistent, at thermal neutron energy, with the only previous measurement performed in the 1960s at a nuclear reactor. The energy dependence reported here clearly indicates the inadequacy of the cross section estimates currently used in BBN calculations. Although new measurements at higher neutron energy may still be needed, the n_TOF results hint at a minor role of this reaction in BBN, leaving the long-standing cosmological lithium problem unsolved.

引用

页数：7

共 50 条

[1] 7Be (n,p)7Li Reaction and the Cosmological Lithium Problem: Measurement of the Cross Section in a Wide Energy Range at n_TOF at CERN
Damone, L.
Barbagallo, M.
Mastromarco, M.
Mengoni, A.
Cosentino, L.
Maugeri, E.
Heinitz, S.
Schumann, D.
Dressler, R.
Kaeppeler, F.
Colonna, N.
Finocchiaro, P.
Andrzejewski, J.
Perkowski, J.
Gawlik, A.
Aberle, O.
Altstadt, S.
Ayranov, M.
Audouin, L.
Bacak, M.
Balibrea-Correa, J.
Ballof, J.
Becares, V.
Becvar, F.
Beinrucker, C.
Bellia, G.
Bernardes, A. P.
Berthoumieux, E.
Billowes, J.
Borge, M. J. G.
Bosnar, D.
Brown, A.
Brugger, M.
Busso, M.
Caamano, M.
Calvino, F.
Calviani, M.
Cano-Ott, D.
Cardella, R.
Casanovas, A.
Castelluccio, D. M.
Catherall, R.
Cerutti, F.
Chen, Y. H.
Chiaveri, E.
Correia, J. G. M.
Cortes, G.
Cortes-Giraldo, M. A.
Cristallo, S.
Diakaki, M.
[J]. PHYSICAL REVIEW LETTERS, 2018, 121 (04)
[2] 7Be(n,p) cross section measurement for the Cosmological Lithium Problem at the n_TOF facility at CERN
Damone, Lucia Anna
Colonna, N.
Barbagallo, M.
Mastromarco, M.
Andrzejewski, J.
Finocchiaro, P.
Cosentino, L.
[J]. 9TH EUROPEAN SUMMER SCHOOL ON EXPERIMENTAL NUCLEAR ASTROPHYSICS, 2018, 184
[3] 7Be(n,α) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n_TOF facility at CERN
Barbagallo, M.
Colonna, N.
Aberle, O.
Andrzejewski, J.
Audouin, L.
Becares, V.
Bacak, M.
Balibrea, J.
Barros, S.
Becvar, F.
Beinrucker, C.
Berthoumieux, E.
Billowes, J.
Bosnar, D.
Brugger, M.
Caamano, M.
Calvino, F.
Calviani, M.
Cano-Ott, D.
Cardella, R.
Casanovas, A.
Castelluccio, D. M.
Cerutti, F.
Chen, Y. H.
Chiaveri, E.
Cortes, G.
Cortes-Giraldo, M. A.
Cosentino, L.
Damone, L. A.
Diakaki, M.
Domingo-Pardo, C.
Dressler, R.
Dupont, E.
Duran, I.
Fernandez-Dominguez, B.
Ferrari, A.
Ferreira, P.
Finocchiaro, P.
Furman, V.
Goebel, K.
Garcia, A. R.
Gawlik, A.
Glodariu, T.
Goncalves, I. F.
Gonzalez, E.
Goverdovski, A.
Griesmayer, E.
Guerrero, C.
Gunsing, F.
Harada, H.
[J]. ND 2016: INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, 2017, 146
[4] Measurement of the cross section for the 4He(α, n)7Be reaction as a possible solution to the cosmological lithium problem
Kawabata, T.
Furuno, T.
Ichikawa, M.
Iwasa, N.
Kanada-En'yo, Y.
Koshikawa, A.
Kubono, S.
Miyawaki, E.
Morimoto, T.
Murata, M.
Nanamura, T.
Nishimura, S.
Shikata, Y.
Takahashi, Y.
Takeda, T.
Tsumura, M.
Watanabe, K.
[J]. 11TH INTERNATIONAL CONFERENCE ON CLUSTERING ASPECTS OF NUCLEAR STRUCTURE AND DYNAMICS, 2017, 863
[5] THE FIRST MEASUREMENT OF CROSS SECTION FOR THE 7Be(n,α)4He REACTION AT THE COSMOLOGICAL ENERGY
Takeda, Tomoya
Kawabata, Takahiro
Furono, Tatsuya
Ichikawa, Masaya
Iwasa, Naohito
Kanada-En'yo, Yoshiko
Koshikawa, Ami
Kubono, Shigeru
Miyawaki, Eisuke
Morimoto, Takahiro
Murata, Motoki
Nanamura, Takuya
Nishimura, Shunji
Shikata, Yuki
Takahashi, Yu
Tsumura, Miho
Watanabe, Ken
[J]. PROCEEDINGS OF THE 14TH INTERNATIONAL SYMPOSIUM ON NUCLEI IN THE COSMOS (NIC2016), 2016,
[6] The Cosmological Lithium Problem and the Measurement of the 7Be(n,α) Reaction at n_TOF-CERN
Musumarra, Agatino
Barbagallo, Massimo
[J]. PROCEEDINGS OF THE 14TH INTERNATIONAL SYMPOSIUM ON NUCLEI IN THE COSMOS (NIC2016), 2016,
[7] Be-7(n,alpha) and Be-7(n,p) cross-section measurement for the Cosmological Lithium Problem at the n_TOF facility at CERN
Barbagallo, M.
[J]. NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS, 2016, 39 (02):
[8] Direct measurement of the 7Be(n, α)4He reaction cross sections for the cosmological Li problem
Kawabata, Takahiro
Fujikawa, Yuki
Furuno, Tatsuya
Goto, Tatsuya
Hashimoto, Toshikazu
Ichikawa, Masaya
Itoh, Makoto
Iwasa, Naohito
Kanada-En'yo, Yoshiko
Koshikawa, Ami
Kubono, Shigeru
Miyawaki, Eisuke
Mizuno, Masatoshi
Mizutani, Keigo
Morimoto, Takahiro
Murata, Motoki
Nanamura, Takuya
Nishimura, Shunji
Nanamura, Takuya
Okamoto, Shintaro
Sakaguchi, Yuichi
Sakata, Itsushi
Sakaue, Akane
Sawada, Ryo
Shikata, Yuki
Takahashi, Yu
Takechi, Daiki
Takeda, Tomoya
Takimoto, Chisato
Tsumura, Miho
Watanabe, Ken
Yoshida, Sota
[J]. FUSION17, 2017, 163
[9] Measurement of the 72Ge(n, y) cross section over a wide neutron energy range at the CERN n_TOF facility
Dietz, M.
Lederer-Woods, C.
Tattersall, A.
Battino, U.
Gunsing, F.
Heinitz, S.
Krticka, M.
Lerendegui-Marco, J.
Reifarth, R.
Valenta, S.
Aberle, O.
Amaducci, S.
Andrzejewski, J.
Audouin, L.
Bacak, M.
Balibrea, J.
Barbagallo, M.
Becvar, F.
Berthoumieux, E.
Billowes, J.
Bosnar, D.
Brown, A.
Caamano, M.
Calvino, F.
Calviani, M.
Cano-Ott, D.
Cardella, R.
Casanovas, A.
Cerutti, F.
Chen, Y. H.
Chiaveri, E.
Colonna, N.
Cortes, G.
Cortes-Giraldo, M. A.
Cosentino, L.
Damone, L. A.
Diakaki, M.
Domingo-Pardo, C.
Dressler, R.
Dupont, E.
Duran, I
Fernandez-Dominguez, B.
Ferrari, A.
Ferreira, P.
Finocchiaro, P.
Furman, V
Goebel, K.
Garcia, A. R.
Gawlik, A.
Gilardoni, S.
[J]. PHYSICAL REVIEW C, 2021, 103 (04)
[10] New reaction rates for the destruction of 7Be during big bang nucleosynthesis measured at CERN/n_TOF and their implications on the cosmological lithium problem
Mengoni, A.
Damone, L. A.
Barbagallo, M.
Aberle, O.
Alcayne, V
Amaducci, S.
Andrzejewski, J.
Audouin, L.
Babiano-Suarez, V
Bacak, M.
Bennett, S.
Berthoumieux, E.
Bosnar, D.
Brown, A. S.
Busso, M.
Caamano, M.
Caballero, L.
Calviani, M.
Calvino, F.
Cano-Ott, D.
Casanovas, A.
Cerutti, F.
Chiaveri, E.
Colonna, N.
Cortes, G. P.
Cortes-Giraldo, M. A.
Cosentino, L.
Cristallo, S.
Davies, P. J.
Diakaki, M.
Dietz, M.
Domingo-Pardo, C.
Dressler, R.
Ducasse, Q.
Dupont, E.
Duran, I
Eleme, Z.
Fernandez-Domingez, B.
Ferrari, A.
Ferro-Goncalves, I
Finocchiaro, P.
Furman, V
Garg, R.
Gawlik, A.
Gilardoni, S.
Goebel, K.
Gonzalez-Romero, E.
Guerrero, C.
Gunsing, F.
Heinitz, S.
[J]. ND 2019: INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, 2020, 239

← 1 2 3 4 5 →