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$^7Be(n,\alpha)^4He$ reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN)
The energy-dependent cross section of the 7Be(n,alpha)4He 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 7Be and by the low rea...
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Lenguaje: | eng |
Publicado: |
2016
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.117.152701 http://cds.cern.ch/record/2195623 |
_version_ | 1780951046671040512 |
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author | Barbagallo, M. Musumarra, A. Cosentino, L. Maugeri, E. Heinitz, S. Mengoni, A. Dressler, R. Schumann, D. Käppeler, F. Colonna, N. Finocchiaro, P. Ayranov, M. Damone, L. Kivel, N. Aberle, O. Altstadt, S. Andrzejewski, J. Audouin, L. Bacak, M. Balibrea-Correa, J. Barros, S. Bécares, V. Bečvář, F. Beinrucker, C. Berthoumieux, E. Billowes, J. Bosnar, D. Brugger, M. Caamaño, M. Calviani, M. Calviño, F. Cano-Ott, D. Cardella, R. Casanovas, A. Castelluccio, D.M. Cerutti, F. Chen, Y.H. Chiaveri, E. Cortés, G. Cortés-Giraldo, M.A. Cristallo, S. Diakaki, M. Domingo-Pardo, C. Dupont, E. Duran, I. Fernandez-Dominguez, B. Ferrari, A. Ferreira, P. Furman, W. Ganesan, S. García-Rios, A. Gawlik, A. Glodariu, T. Göbel, K. Gonçalves, I.F. González-Romero, E. Griesmayer, E. Guerrero, C. Gunsing, F. Harada, H. Heftrich, T. Heyse, J. Jenkins, D.G. Jericha, E. Katabuchi, T. Kavrigin, P. Kimura, A. Kokkoris, M. Krtička, M. Leal-Cidoncha, E. Lerendegui, J. Lederer, C. Leeb, H. Lo Meo, S. Lonsdale, S.J. Losito, R. Macina, D. Marganiec, J. Martínez, T. Massimi, C. Mastinu, P. Mastromarco, M. Mazzone, A. Mendoza, E. Milazzo, P.M. Mingrone, F. Mirea, M. Montesano, S. Nolte, R. Oprea, A. Pappalardo, A. Patronis, N. Pavlik, A. Perkowski, J. Piscopo, M. Plompen, A. Porras, I. Praena, J. Quesada, J. Rajeev, K. Rauscher, T. Reifarth, R. Riego-Perez, A. Rout, P. Rubbia, C. Ryan, J. Sabate-Gilarte, M. Saxena, A. Schillebeeckx, P. Schmidt, S. Sedyshev, P. Smith, A.G. Stamatopoulos, A. Tagliente, G. Tain, J.L. Tarifeño-Saldivia, A. Tassan-Got, L. Tsinganis, A. Valenta, S. Vannini, G. Variale, V. Vaz, P. Ventura, A. Vlachoudis, V. Vlastou, R. Vollaire, J. Wallner, A. Warren, S. Weigand, M. Weiß, C. Wolf, C. Woods, P.J. Wright, T. Žugec, P. |
author_facet | Barbagallo, M. Musumarra, A. Cosentino, L. Maugeri, E. Heinitz, S. Mengoni, A. Dressler, R. Schumann, D. Käppeler, F. Colonna, N. Finocchiaro, P. Ayranov, M. Damone, L. Kivel, N. Aberle, O. Altstadt, S. Andrzejewski, J. Audouin, L. Bacak, M. Balibrea-Correa, J. Barros, S. Bécares, V. Bečvář, F. Beinrucker, C. Berthoumieux, E. Billowes, J. Bosnar, D. Brugger, M. Caamaño, M. Calviani, M. Calviño, F. Cano-Ott, D. Cardella, R. Casanovas, A. Castelluccio, D.M. Cerutti, F. Chen, Y.H. Chiaveri, E. Cortés, G. Cortés-Giraldo, M.A. Cristallo, S. Diakaki, M. Domingo-Pardo, C. Dupont, E. Duran, I. Fernandez-Dominguez, B. Ferrari, A. Ferreira, P. Furman, W. Ganesan, S. García-Rios, A. Gawlik, A. Glodariu, T. Göbel, K. Gonçalves, I.F. González-Romero, E. Griesmayer, E. Guerrero, C. Gunsing, F. Harada, H. Heftrich, T. Heyse, J. Jenkins, D.G. Jericha, E. Katabuchi, T. Kavrigin, P. Kimura, A. Kokkoris, M. Krtička, M. Leal-Cidoncha, E. Lerendegui, J. Lederer, C. Leeb, H. Lo Meo, S. Lonsdale, S.J. Losito, R. Macina, D. Marganiec, J. Martínez, T. Massimi, C. Mastinu, P. Mastromarco, M. Mazzone, A. Mendoza, E. Milazzo, P.M. Mingrone, F. Mirea, M. Montesano, S. Nolte, R. Oprea, A. Pappalardo, A. Patronis, N. Pavlik, A. Perkowski, J. Piscopo, M. Plompen, A. Porras, I. Praena, J. Quesada, J. Rajeev, K. Rauscher, T. Reifarth, R. Riego-Perez, A. Rout, P. Rubbia, C. Ryan, J. Sabate-Gilarte, M. Saxena, A. Schillebeeckx, P. Schmidt, S. Sedyshev, P. Smith, A.G. Stamatopoulos, A. Tagliente, G. Tain, J.L. Tarifeño-Saldivia, A. Tassan-Got, L. Tsinganis, A. Valenta, S. Vannini, G. Variale, V. Vaz, P. Ventura, A. Vlachoudis, V. Vlastou, R. Vollaire, J. Wallner, A. Warren, S. Weigand, M. Weiß, C. Wolf, C. Woods, P.J. Wright, T. Žugec, P. |
author_sort | Barbagallo, M. |
collection | CERN |
description | The energy-dependent cross section of the 7Be(n,alpha)4He 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 7Be 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 7Be, and a specifically designed experimental setup. Coincidences between the two alpha-particles have been recorded in two Si-7Be-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 60's at a nuclear reactor. The energy dependence here reported 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 to a minor role of this reaction in BBN, leaving the long-standing Cosmological Lithium problem unsolved. |
id | cern-2195623 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2016 |
record_format | invenio |
spelling | cern-21956232022-03-16T03:06:21Zdoi:10.1103/PhysRevLett.117.152701http://cds.cern.ch/record/2195623engBarbagallo, M.Musumarra, A.Cosentino, L.Maugeri, E.Heinitz, S.Mengoni, A.Dressler, R.Schumann, D.Käppeler, F.Colonna, N.Finocchiaro, P.Ayranov, M.Damone, L.Kivel, N.Aberle, O.Altstadt, S.Andrzejewski, J.Audouin, L.Bacak, M.Balibrea-Correa, J.Barros, S.Bécares, V.Bečvář, F.Beinrucker, C.Berthoumieux, E.Billowes, J.Bosnar, D.Brugger, M.Caamaño, M.Calviani, M.Calviño, F.Cano-Ott, D.Cardella, R.Casanovas, A.Castelluccio, D.M.Cerutti, F.Chen, Y.H.Chiaveri, E.Cortés, G.Cortés-Giraldo, M.A.Cristallo, S.Diakaki, M.Domingo-Pardo, C.Dupont, E.Duran, I.Fernandez-Dominguez, B.Ferrari, A.Ferreira, P.Furman, W.Ganesan, S.García-Rios, A.Gawlik, A.Glodariu, T.Göbel, K.Gonçalves, I.F.González-Romero, E.Griesmayer, E.Guerrero, C.Gunsing, F.Harada, H.Heftrich, T.Heyse, J.Jenkins, D.G.Jericha, E.Katabuchi, T.Kavrigin, P.Kimura, A.Kokkoris, M.Krtička, M.Leal-Cidoncha, E.Lerendegui, J.Lederer, C.Leeb, H.Lo Meo, S.Lonsdale, S.J.Losito, R.Macina, D.Marganiec, J.Martínez, T.Massimi, C.Mastinu, P.Mastromarco, M.Mazzone, A.Mendoza, E.Milazzo, P.M.Mingrone, F.Mirea, M.Montesano, S.Nolte, R.Oprea, A.Pappalardo, A.Patronis, N.Pavlik, A.Perkowski, J.Piscopo, M.Plompen, A.Porras, I.Praena, J.Quesada, J.Rajeev, K.Rauscher, T.Reifarth, R.Riego-Perez, A.Rout, P.Rubbia, C.Ryan, J.Sabate-Gilarte, M.Saxena, A.Schillebeeckx, P.Schmidt, S.Sedyshev, P.Smith, A.G.Stamatopoulos, A.Tagliente, G.Tain, J.L.Tarifeño-Saldivia, A.Tassan-Got, L.Tsinganis, A.Valenta, S.Vannini, G.Variale, V.Vaz, P.Ventura, A.Vlachoudis, V.Vlastou, R.Vollaire, J.Wallner, A.Warren, S.Weigand, M.Weiß, C.Wolf, C.Woods, P.J.Wright, T.Žugec, P.$^7Be(n,\alpha)^4He$ reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN)Nuclear Physics - ExperimentThe energy-dependent cross section of the 7Be(n,alpha)4He 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 7Be 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 7Be, and a specifically designed experimental setup. Coincidences between the two alpha-particles have been recorded in two Si-7Be-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 60's at a nuclear reactor. The energy dependence here reported 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 to a minor role of this reaction in BBN, leaving the long-standing Cosmological Lithium problem unsolved.The energy-dependent cross section of the Be7(n,α)He4 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 Be7 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 Be7, and a specifically designed experimental setup. Coincidences between the two alpha particles have been recorded in two Si-Be7-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.The energy-dependent cross section of the 7Be(n,alpha)4He 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 7Be 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 7Be, and a specifically designed experimental setup. Coincidences between the two alpha-particles have been recorded in two Si-7Be-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 60's at a nuclear reactor. The energy dependence here reported 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 to a minor role of this reaction in BBN, leaving the long-standing Cosmological Lithium problem unsolved.arXiv:1606.09420oai:cds.cern.ch:21956232016-06-30 |
spellingShingle | Nuclear Physics - Experiment Barbagallo, M. Musumarra, A. Cosentino, L. Maugeri, E. Heinitz, S. Mengoni, A. Dressler, R. Schumann, D. Käppeler, F. Colonna, N. Finocchiaro, P. Ayranov, M. Damone, L. Kivel, N. Aberle, O. Altstadt, S. Andrzejewski, J. Audouin, L. Bacak, M. Balibrea-Correa, J. Barros, S. Bécares, V. Bečvář, F. Beinrucker, C. Berthoumieux, E. Billowes, J. Bosnar, D. Brugger, M. Caamaño, M. Calviani, M. Calviño, F. Cano-Ott, D. Cardella, R. Casanovas, A. Castelluccio, D.M. Cerutti, F. Chen, Y.H. Chiaveri, E. Cortés, G. Cortés-Giraldo, M.A. Cristallo, S. Diakaki, M. Domingo-Pardo, C. Dupont, E. Duran, I. Fernandez-Dominguez, B. Ferrari, A. Ferreira, P. Furman, W. Ganesan, S. García-Rios, A. Gawlik, A. Glodariu, T. Göbel, K. Gonçalves, I.F. González-Romero, E. Griesmayer, E. Guerrero, C. Gunsing, F. Harada, H. Heftrich, T. Heyse, J. Jenkins, D.G. Jericha, E. Katabuchi, T. Kavrigin, P. Kimura, A. Kokkoris, M. Krtička, M. Leal-Cidoncha, E. Lerendegui, J. Lederer, C. Leeb, H. Lo Meo, S. Lonsdale, S.J. Losito, R. Macina, D. Marganiec, J. Martínez, T. Massimi, C. Mastinu, P. Mastromarco, M. Mazzone, A. Mendoza, E. Milazzo, P.M. Mingrone, F. Mirea, M. Montesano, S. Nolte, R. Oprea, A. Pappalardo, A. Patronis, N. Pavlik, A. Perkowski, J. Piscopo, M. Plompen, A. Porras, I. Praena, J. Quesada, J. Rajeev, K. Rauscher, T. Reifarth, R. Riego-Perez, A. Rout, P. Rubbia, C. Ryan, J. Sabate-Gilarte, M. Saxena, A. Schillebeeckx, P. Schmidt, S. Sedyshev, P. Smith, A.G. Stamatopoulos, A. Tagliente, G. Tain, J.L. Tarifeño-Saldivia, A. Tassan-Got, L. Tsinganis, A. Valenta, S. Vannini, G. Variale, V. Vaz, P. Ventura, A. Vlachoudis, V. Vlastou, R. Vollaire, J. Wallner, A. Warren, S. Weigand, M. Weiß, C. Wolf, C. Woods, P.J. Wright, T. Žugec, P. $^7Be(n,\alpha)^4He$ reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) |
title | $^7Be(n,\alpha)^4He$ reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) |
title_full | $^7Be(n,\alpha)^4He$ reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) |
title_fullStr | $^7Be(n,\alpha)^4He$ reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) |
title_full_unstemmed | $^7Be(n,\alpha)^4He$ reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) |
title_short | $^7Be(n,\alpha)^4He$ reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN) |
title_sort | $^7be(n,\alpha)^4he$ reaction and the cosmological lithium problem: measurement of the cross section in a wide energy range at n_tof (cern) |
topic | Nuclear Physics - Experiment |
url | https://dx.doi.org/10.1103/PhysRevLett.117.152701 http://cds.cern.ch/record/2195623 |
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7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT lomeos 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT lonsdalesj 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT lositor 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT macinad 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT marganiecj 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT martinezt 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT massimic 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT mastinup 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT mastromarcom 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT mazzonea 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT mendozae 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT milazzopm 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT mingronef 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT miream 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT montesanos 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT nolter 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT opreaa 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT pappalardoa 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT patronisn 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT pavlika 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT perkowskij 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT piscopom 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT plompena 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT porrasi 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT praenaj 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT quesadaj 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT rajeevk 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT rauschert 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT reifarthr 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT riegopereza 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT routp 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT rubbiac 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT ryanj 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT sabategilartem 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT saxenaa 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT schillebeeckxp 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT schmidts 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT sedyshevp 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT smithag 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT stamatopoulosa 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT taglienteg 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT tainjl 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT tarifenosaldiviaa 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT tassangotl 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT tsinganisa 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT valentas 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT vanninig 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT varialev 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT vazp 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT venturaa 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT vlachoudisv 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT vlastour 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT vollairej 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT wallnera 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT warrens 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT weigandm 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT weißc 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT wolfc 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT woodspj 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT wrightt 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern AT zugecp 7benalpha4hereactionandthecosmologicallithiumproblemmeasurementofthecrosssectioninawideenergyrangeatntofcern |