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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">     <html xmlns="http://www.w3.org/1999/xhtml" lang="zh" xml:lang="zh" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"> <head> <title>Measurement of the $^{12}$C($n,p$)$^{12}$B cross section at n_TOF (CERN) by in-beam activation analysis - CERN Document Server</title> <link href='https://framework.web.cern.ch/framework/2.0/fonts/PTSansWeb/PTSansWeb.css' rel='stylesheet' type='text/css' /> <link rel="stylesheet" href="http://cds.cern.ch/img/invenio.css?v=20141127" type="text/css" /> <link rel="stylesheet" href="http://cds.cern.ch/img/cern_theme/css/cern_theme.css?v=20141127" type="text/css" /> <link rel="stylesheet"href="/css/font-awesome.min.css"> <meta http-equiv="X-UA-Compatible" content="IE=Edge"/> <link rel="stylesheet" href="http://cds.cern.ch/img/cern_toolbar/css/toolbar.css" type="text/css" />    <link rel="canonical" href="http://cds.cern.ch/record/1752437" /> <link rel="alternate" hreflang="el" href="http://cds.cern.ch/record/1752437?ln=el" /> <link rel="alternate" hreflang="fr" href="http://cds.cern.ch/record/1752437?ln=fr" /> <link rel="alternate" hreflang="bg" href="http://cds.cern.ch/record/1752437?ln=bg" /> <link rel="alternate" hreflang="zh-TW" href="http://cds.cern.ch/record/1752437?ln=zh_TW" /> <link rel="alternate" hreflang="pt" href="http://cds.cern.ch/record/1752437?ln=pt" /> <link rel="alternate" hreflang="no" href="http://cds.cern.ch/record/1752437?ln=no" /> <link rel="alternate" hreflang="hr" href="http://cds.cern.ch/record/1752437?ln=hr" /> <link rel="alternate" hreflang="ca" href="http://cds.cern.ch/record/1752437?ln=ca" /> <link rel="alternate" hreflang="de" href="http://cds.cern.ch/record/1752437?ln=de" /> <link rel="alternate" hreflang="it" href="http://cds.cern.ch/record/1752437?ln=it" /> <link rel="alternate" hreflang="zh-CN" href="http://cds.cern.ch/record/1752437?ln=zh_CN" /> <link rel="alternate" hreflang="sv" href="http://cds.cern.ch/record/1752437?ln=sv" /> <link rel="alternate" hreflang="sk" href="http://cds.cern.ch/record/1752437?ln=sk" /> <link rel="alternate" hreflang="en" href="http://cds.cern.ch/record/1752437?ln=en" /> <link rel="alternate" hreflang="pl" href="http://cds.cern.ch/record/1752437?ln=pl" /> <link rel="alternate" hreflang="ru" href="http://cds.cern.ch/record/1752437?ln=ru" /> <link rel="alternate" hreflang="ka" href="http://cds.cern.ch/record/1752437?ln=ka" /> <link rel="alternate" hreflang="ja" href="http://cds.cern.ch/record/1752437?ln=ja" /> <link rel="alternate" hreflang="es" href="http://cds.cern.ch/record/1752437?ln=es" /> <link rel="alternate" type="application/rss+xml" title="CERN Document Server RSS" href="/rss?ln=zh_TW" /> <link rel="search" type="application/opensearchdescription+xml" href="http://cds.cern.ch/opensearchdescription" title="CERN Document Server" /> <link rel="unapi-server" type="application/xml" title="unAPI" href="http://cds.cern.ch/unapi" /> <link rel="apple-touch-icon" href="/apple-touch-icon.png"/> <link rel="apple-touch-icon-precomposed" href="/apple-touch-icon-precomposed.png"/> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Language" content="zh_TW" /> <meta name="description" content="The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique, with the $\beta$-decay of $^{12}$B measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate that model predictions, used in a variety of applications, are mostly inadequate. The value of the integral cross section reported here can be used as a benchmark for verifying or tuning model calculations. <p>The integral cross section of the <inline-formula><mml:math><mml:mrow><mml:mrow><mml:msup><mml:mrow/><mml:mn>12</mml:mn></mml:msup><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mi>n</mml:mi><mml:mo>,</mml:mo><mml:mi>p</mml:mi><mml:mo>)</mml:mo></mml:mrow><mml:mrow><mml:msup><mml:mrow/><mml:mn>12</mml:mn></mml:msup><mml:mi mathvariant="normal">B</mml:mi></mml:mrow></mml:mrow></mml:math></inline-formula> reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique with the <inline-formula><mml:math><mml:mi>β</mml:mi></mml:math></inline-formula> decay of <inline-formula><mml:math><mml:mrow><mml:msup><mml:mrow/><mml:mn>12</mml:mn></mml:msup><mml:mi mathvariant="normal">B</mml:mi></mml:mrow></mml:math></inline-formula> measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate that model predictions, used in a variety of applications, are mostly inadequate. The value of the integral cross section reported here can be used as a benchmark for verifying or tuning model calculations.</p> The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique, with the $\beta$-decay of $^{12}$B measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate that model predictions, used in a variety of applications, are mostly inadequate. The value of the integral cross section reported here can be used as a benchmark for verifying or tuning model calculations. Žugec, P.; Colonna, N.; Bosnar, D.; Mengoni, A.; Altstadt, S.; Andrzejewski, J.; Audouin, L.; Barbagallo, M.; Bécares, V.; Bečvář, F.; Belloni, F.; Berthoumieux, E.; Billowes, J.; Boccone, V.; Brugger, M.; Calviani, M.; Calviño, F.; Cano-Ott, D.; Carrapiço, C.; Cerutti, F.; Chiaveri, E.; Chin, M.; Cortés, G.; Cortés-Giraldo, M.A.; Cosentino, L.; Diakaki, M.; Domingo-Pardo, C.; Dressler, R.; Duran, I.; Eleftheriadis, C.; Ferrari, A.; Finocchiaro, P.; Fraval, K.; Ganesan, S.; García, A.R.; Giubrone, G.; Gómez-Hornillos, M.B.; Gonçalves, I.F.; González-Romero, E.; Griesmayer, E.; Guerrero, C.; Gunsing, F.; Gurusamy, P.; Heinitz, S.; Jenkins, D.G.; Jericha, E.; Käppeler, F.; Karadimos, D.; Kivel, N.; Kokkoris, M.; Krtička, M.; Kroll, J.; Langer, C.; Lederer, C.; Leeb, H.; Leong, L.S.; Lo Meo, S.; Losito, R.; Manousos, A.; Marganiec, J.; Martínez, T.; Massimi, C.; Mastinu, P.; Mastromarco, M.; Mendoza, E.; Milazzo, P.M.; Mingrone, F.; Mirea, M.; Mondalaers, W.; Musumarra, A.; Paradela, C.; 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var link = document.getElementById('link'); var extension = document.getElementById('extension'); if (more.style.display=='none'){ more.style.display = ''; extension.style.display = 'none'; link.innerHTML = "隱藏" } else { more.style.display = 'none'; extension.style.display = ''; link.innerHTML = "顯示全部 105 名作者" } link.style.color = "rgb(204,0,0);" } function set_up(){ var extension = document.getElementById('extension'); extension.innerHTML = "n_TOF Collaboration "; toggle_authors_visibility(); } </script> <a name="show_hide" /><p id="more" style=""><a href="http://cds.cern.ch/search?f=author&p=%C5%BDugec%2C%20P.&ln=zh_TW">Žugec, P.</a> (Zagreb U., Phys. Dept.) ; <a href="http://cds.cern.ch/search?f=author&p=Colonna%2C%20N.&ln=zh_TW">Colonna, N.</a> (INFN, Bari) ; <a href="http://cds.cern.ch/search?f=author&p=Bosnar%2C%20D.&ln=zh_TW">Bosnar, D.</a> (Zagreb U., Phys. Dept.) ; <a href="http://cds.cern.ch/search?f=author&p=Mengoni%2C%20A.&ln=zh_TW">Mengoni, A.</a> (ENEA, Bologna) ; <a href="http://cds.cern.ch/search?f=author&p=Altstadt%2C%20S.&ln=zh_TW">Altstadt, S.</a> (Frankfurt U.) ; <a href="http://cds.cern.ch/search?f=author&p=Andrzejewski%2C%20J.&ln=zh_TW">Andrzejewski, J.</a> (Lodz U.) ; <a href="http://cds.cern.ch/search?f=author&p=Audouin%2C%20L.&ln=zh_TW">Audouin, L.</a> (CSNSM, Orsay) ; <a href="http://cds.cern.ch/search?f=author&p=Barbagallo%2C%20M.&ln=zh_TW">Barbagallo, M.</a> (INFN, Bari) ; <a href="http://cds.cern.ch/search?f=author&p=B%C3%A9cares%2C%20V.&ln=zh_TW">Bécares, V.</a> (Madrid, CIEMAT) ; <a href="http://cds.cern.ch/search?f=author&p=Be%C4%8Dv%C3%A1%C5%99%2C%20F.&ln=zh_TW">Bečvář, F.</a> (Charles U.) ; <a href="http://cds.cern.ch/search?f=author&p=Belloni%2C%20F.&ln=zh_TW">Belloni, F.</a> (Geel, JRC) ; <a href="http://cds.cern.ch/search?f=author&p=Berthoumieux%2C%20E.&ln=zh_TW">Berthoumieux, E.</a> (IRFU, SPhN, Saclay) ; <a href="http://cds.cern.ch/search?f=author&p=Billowes%2C%20J.&ln=zh_TW">Billowes, J.</a> (Manchester U.) ; <a href="http://cds.cern.ch/search?f=author&p=Boccone%2C%20V.&ln=zh_TW">Boccone, V.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Brugger%2C%20M.&ln=zh_TW">Brugger, M.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Calviani%2C%20M.&ln=zh_TW">Calviani, M.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Calvi%C3%B1o%2C%20F.&ln=zh_TW">Calviño, F.</a> (Barcelona, Polytechnic U.) ; <a href="http://cds.cern.ch/search?f=author&p=Cano-Ott%2C%20D.&ln=zh_TW">Cano-Ott, D.</a> (Madrid, CIEMAT) ; <a href="http://cds.cern.ch/search?f=author&p=Carrapi%C3%A7o%2C%20C.&ln=zh_TW">Carrapiço, C.</a> (Lisbon, CFTP) ; <a href="http://cds.cern.ch/search?f=author&p=Cerutti%2C%20F.&ln=zh_TW">Cerutti, F.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Chiaveri%2C%20E.&ln=zh_TW">Chiaveri, E.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Chin%2C%20M.&ln=zh_TW">Chin, M.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Cort%C3%A9s%2C%20G.&ln=zh_TW">Cortés, G.</a> (Barcelona, Polytechnic U.) ; <a href="http://cds.cern.ch/search?f=author&p=Cort%C3%A9s-Giraldo%2C%20M.A.&ln=zh_TW">Cortés-Giraldo, M.A.</a> (CNA, Seville) ; <a href="http://cds.cern.ch/search?f=author&p=Cosentino%2C%20L.&ln=zh_TW">Cosentino, L.</a> (INFN, LNS) ; <a href="http://cds.cern.ch/search?f=author&p=Diakaki%2C%20M.&ln=zh_TW">Diakaki, M.</a> (Natl. Tech. U., Athens) ; <a href="http://cds.cern.ch/search?f=author&p=Domingo-Pardo%2C%20C.&ln=zh_TW">Domingo-Pardo, C.</a> (Valencia U., IFIC) ; <a href="http://cds.cern.ch/search?f=author&p=Dressler%2C%20R.&ln=zh_TW">Dressler, R.</a> (PSI, Villigen) ; <a href="http://cds.cern.ch/search?f=author&p=Duran%2C%20I.&ln=zh_TW">Duran, I.</a> (Santiago de Compostela U.) ; <a href="http://cds.cern.ch/search?f=author&p=Eleftheriadis%2C%20C.&ln=zh_TW">Eleftheriadis, C.</a> (Aristotle U., Thessaloniki) ; <a href="http://cds.cern.ch/search?f=author&p=Ferrari%2C%20A.&ln=zh_TW">Ferrari, A.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Finocchiaro%2C%20P.&ln=zh_TW">Finocchiaro, P.</a> (INFN, LNS) ; <a href="http://cds.cern.ch/search?f=author&p=Fraval%2C%20K.&ln=zh_TW">Fraval, K.</a> (IRFU, SPhN, Saclay) ; <a href="http://cds.cern.ch/search?f=author&p=Ganesan%2C%20S.&ln=zh_TW">Ganesan, S.</a> (Bhabha Atomic Res. Ctr.) ; <a href="http://cds.cern.ch/search?f=author&p=Garc%C3%ADa%2C%20A.R.&ln=zh_TW">García, A.R.</a> (Madrid, CIEMAT) ; <a href="http://cds.cern.ch/search?f=author&p=Giubrone%2C%20G.&ln=zh_TW">Giubrone, G.</a> (Valencia U., IFIC) ; <a href="http://cds.cern.ch/search?f=author&p=G%C3%B3mez-Hornillos%2C%20M.B.&ln=zh_TW">Gómez-Hornillos, M.B.</a> (Barcelona, Polytechnic U.) ; <a href="http://cds.cern.ch/search?f=author&p=Gon%C3%A7alves%2C%20I.F.&ln=zh_TW">Gonçalves, I.F.</a> (Lisbon, CFTP) ; <a href="http://cds.cern.ch/search?f=author&p=Gonz%C3%A1lez-Romero%2C%20E.&ln=zh_TW">González-Romero, E.</a> (Madrid, CIEMAT) ; <a href="http://cds.cern.ch/search?f=author&p=Griesmayer%2C%20E.&ln=zh_TW">Griesmayer, E.</a> (Vienna, Tech. U.) ; <a href="http://cds.cern.ch/search?f=author&p=Guerrero%2C%20C.&ln=zh_TW">Guerrero, C.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Gunsing%2C%20F.&ln=zh_TW">Gunsing, F.</a> (IRFU, SPhN, Saclay) ; <a href="http://cds.cern.ch/search?f=author&p=Gurusamy%2C%20P.&ln=zh_TW">Gurusamy, P.</a> (Bhabha Atomic Res. Ctr.) ; <a href="http://cds.cern.ch/search?f=author&p=Heinitz%2C%20S.&ln=zh_TW">Heinitz, S.</a> (PSI, Villigen) ; <a href="http://cds.cern.ch/search?f=author&p=Jenkins%2C%20D.G.&ln=zh_TW">Jenkins, D.G.</a> (York U., England) ; <a href="http://cds.cern.ch/search?f=author&p=Jericha%2C%20E.&ln=zh_TW">Jericha, E.</a> (Vienna, Tech. U.) ; <a href="http://cds.cern.ch/search?f=author&p=K%C3%A4ppeler%2C%20F.&ln=zh_TW">Käppeler, F.</a> (KIT, Karlsruhe, IKP) ; <a href="http://cds.cern.ch/search?f=author&p=Karadimos%2C%20D.&ln=zh_TW">Karadimos, D.</a> (Natl. Tech. U., Athens) ; <a href="http://cds.cern.ch/search?f=author&p=Kivel%2C%20N.&ln=zh_TW">Kivel, N.</a> (PSI, Villigen) ; <a href="http://cds.cern.ch/search?f=author&p=Kokkoris%2C%20M.&ln=zh_TW">Kokkoris, M.</a> (Natl. Tech. U., Athens) ; <a href="http://cds.cern.ch/search?f=author&p=Krti%C4%8Dka%2C%20M.&ln=zh_TW">Krtička, M.</a> (Charles U.) ; <a href="http://cds.cern.ch/search?f=author&p=Kroll%2C%20J.&ln=zh_TW">Kroll, J.</a> (Charles U.) ; <a href="http://cds.cern.ch/search?f=author&p=Langer%2C%20C.&ln=zh_TW">Langer, C.</a> (Frankfurt U.) ; <a href="http://cds.cern.ch/search?f=author&p=Lederer%2C%20C.&ln=zh_TW">Lederer, C.</a> (Frankfurt U.) ; <a href="http://cds.cern.ch/search?f=author&p=Leeb%2C%20H.&ln=zh_TW">Leeb, H.</a> (Vienna, Tech. U.) ; <a href="http://cds.cern.ch/search?f=author&p=Leong%2C%20L.S.&ln=zh_TW">Leong, L.S.</a> (CSNSM, Orsay) ; <a href="http://cds.cern.ch/search?f=author&p=Lo%20Meo%2C%20S.&ln=zh_TW">Lo Meo, S.</a> (ENEA, Bologna) ; <a href="http://cds.cern.ch/search?f=author&p=Losito%2C%20R.&ln=zh_TW">Losito, R.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Manousos%2C%20A.&ln=zh_TW">Manousos, A.</a> (Aristotle U., Thessaloniki) ; <a href="http://cds.cern.ch/search?f=author&p=Marganiec%2C%20J.&ln=zh_TW">Marganiec, J.</a> (Lodz U.) ; <a href="http://cds.cern.ch/search?f=author&p=Mart%C3%ADnez%2C%20T.&ln=zh_TW">Martínez, T.</a> (Madrid, CIEMAT) ; <a href="http://cds.cern.ch/search?f=author&p=Massimi%2C%20C.&ln=zh_TW">Massimi, C.</a> (Bologna U. ; INFN, Bologna) ; <a href="http://cds.cern.ch/search?f=author&p=Mastinu%2C%20P.&ln=zh_TW">Mastinu, P.</a> (INFN, Legnaro) ; <a href="http://cds.cern.ch/search?f=author&p=Mastromarco%2C%20M.&ln=zh_TW">Mastromarco, M.</a> (INFN, Bari) ; <a href="http://cds.cern.ch/search?f=author&p=Mendoza%2C%20E.&ln=zh_TW">Mendoza, E.</a> (Madrid, CIEMAT) ; <a href="http://cds.cern.ch/search?f=author&p=Milazzo%2C%20P.M.&ln=zh_TW">Milazzo, P.M.</a> (INFN, Trieste) ; <a href="http://cds.cern.ch/search?f=author&p=Mingrone%2C%20F.&ln=zh_TW">Mingrone, F.</a> (Bologna U. ; INFN, Bologna) ; <a href="http://cds.cern.ch/search?f=author&p=Mirea%2C%20M.&ln=zh_TW">Mirea, M.</a> (Bucharest, IFIN-HH) ; <a href="http://cds.cern.ch/search?f=author&p=Mondalaers%2C%20W.&ln=zh_TW">Mondalaers, W.</a> (Geel, JRC) ; <a href="http://cds.cern.ch/search?f=author&p=Musumarra%2C%20A.&ln=zh_TW">Musumarra, A.</a> (INFN, LNS ; Catania U.) ; <a href="http://cds.cern.ch/search?f=author&p=Paradela%2C%20C.&ln=zh_TW">Paradela, C.</a> (Geel, JRC) ; <a href="http://cds.cern.ch/search?f=author&p=Pavlik%2C%20A.&ln=zh_TW">Pavlik, A.</a> (Vienna U.) ; <a href="http://cds.cern.ch/search?f=author&p=Perkowski%2C%20J.&ln=zh_TW">Perkowski, J.</a> (Lodz U.) ; <a href="http://cds.cern.ch/search?f=author&p=Plompen%2C%20A.&ln=zh_TW">Plompen, A.</a> (Geel, JRC) ; <a href="http://cds.cern.ch/search?f=author&p=Praena%2C%20J.&ln=zh_TW">Praena, J.</a> (CNA, Seville) ; <a href="http://cds.cern.ch/search?f=author&p=Quesada%2C%20J.&ln=zh_TW">Quesada, J.</a> (CNA, Seville) ; <a href="http://cds.cern.ch/search?f=author&p=Rauscher%2C%20T.&ln=zh_TW">Rauscher, T.</a> (Hertfordshire U. ; Basel U.) ; <a href="http://cds.cern.ch/search?f=author&p=Reifarth%2C%20R.&ln=zh_TW">Reifarth, R.</a> (Frankfurt U.) ; <a href="http://cds.cern.ch/search?f=author&p=Riego%2C%20A.&ln=zh_TW">Riego, A.</a> (Barcelona, Polytechnic U.) ; <a href="http://cds.cern.ch/search?f=author&p=Roman%2C%20F.&ln=zh_TW">Roman, F.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Rubbia%2C%20C.&ln=zh_TW">Rubbia, C.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Sarmento%2C%20R.&ln=zh_TW">Sarmento, R.</a> (Lisbon, CFTP) ; <a href="http://cds.cern.ch/search?f=author&p=Saxena%2C%20A.&ln=zh_TW">Saxena, A.</a> (Bhabha Atomic Res. Ctr.) ; <a href="http://cds.cern.ch/search?f=author&p=Schillebeeckx%2C%20P.&ln=zh_TW">Schillebeeckx, P.</a> (Geel, JRC) ; <a href="http://cds.cern.ch/search?f=author&p=Schmidt%2C%20S.&ln=zh_TW">Schmidt, S.</a> (Frankfurt U.) ; <a href="http://cds.cern.ch/search?f=author&p=Schumann%2C%20D.&ln=zh_TW">Schumann, D.</a> (PSI, Villigen) ; <a href="http://cds.cern.ch/search?f=author&p=Tagliente%2C%20G.&ln=zh_TW">Tagliente, G.</a> (INFN, Bari) ; <a href="http://cds.cern.ch/search?f=author&p=Tain%2C%20J.L.&ln=zh_TW">Tain, J.L.</a> (Valencia U., IFIC) ; <a href="http://cds.cern.ch/search?f=author&p=Tarr%C3%ADo%2C%20D.&ln=zh_TW">Tarrío, D.</a> (Santiago de Compostela U.) ; <a href="http://cds.cern.ch/search?f=author&p=Tassan-Got%2C%20L.&ln=zh_TW">Tassan-Got, L.</a> (CSNSM, Orsay) ; <a href="http://cds.cern.ch/search?f=author&p=Tsinganis%2C%20A.&ln=zh_TW">Tsinganis, A.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Valenta%2C%20S.&ln=zh_TW">Valenta, S.</a> (Charles U.) ; <a href="http://cds.cern.ch/search?f=author&p=Vannini%2C%20G.&ln=zh_TW">Vannini, G.</a> (Bologna U. ; INFN, Bologna) ; <a href="http://cds.cern.ch/search?f=author&p=Variale%2C%20V.&ln=zh_TW">Variale, V.</a> (INFN, Bari) ; <a href="http://cds.cern.ch/search?f=author&p=Vaz%2C%20P.&ln=zh_TW">Vaz, P.</a> (Lisbon, CFTP) ; <a href="http://cds.cern.ch/search?f=author&p=Ventura%2C%20A.&ln=zh_TW">Ventura, A.</a> (INFN, Bologna) ; <a href="http://cds.cern.ch/search?f=author&p=Versaci%2C%20R.&ln=zh_TW">Versaci, R.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Vermeulen%2C%20M.J.&ln=zh_TW">Vermeulen, M.J.</a> (York U., England) ; <a href="http://cds.cern.ch/search?f=author&p=Vlachoudis%2C%20V.&ln=zh_TW">Vlachoudis, V.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Vlastou%2C%20R.&ln=zh_TW">Vlastou, R.</a> (Natl. Tech. U., Athens) ; <a href="http://cds.cern.ch/search?f=author&p=Wallner%2C%20A.&ln=zh_TW">Wallner, A.</a> (Australian Natl. U., Canberra ; Vienna U.) ; <a href="http://cds.cern.ch/search?f=author&p=Ware%2C%20T.&ln=zh_TW">Ware, T.</a> (Manchester U.) ; <a href="http://cds.cern.ch/search?f=author&p=Weigand%2C%20M.&ln=zh_TW">Weigand, M.</a> (Frankfurt U.) ; <a href="http://cds.cern.ch/search?f=author&p=Wei%C3%9F%2C%20C.&ln=zh_TW">Weiß, C.</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Wright%2C%20T.&ln=zh_TW">Wright, T.</a> (Manchester U.)</p> <span id="extension"></span> <small><i><a id="link" href="#" onclick="toggle_authors_visibility()" style="color:rgb(204,0,0);"></a></i></small><script type="text/javascript">set_up()</script></td></tr> <tr><td class="formatRecordLabel"> Publication </td><td style="padding-left:5px;">2014-08-19</td></tr> <tr><td class="formatRecordLabel"> Imprint </td><td style="padding-left:5px;">28 Aug 2014</td></tr> <tr><td class="formatRecordLabel"> Number of pages </td><td style="padding-left:5px;">5</td></tr> <tr><td class="formatRecordLabel"> Note </td><td style="padding-left:5px;">preliminary entry<br />6 pages, 4 figures</td></tr> <tr><td class="formatRecordLabel"> In: </td><td style="padding-left:5px;"><i>Phys. Rev. C</i> 90 (2014) pp.021601(R)</td></tr> <tr><td class="formatRecordLabel"> DOI </td><td style="padding-left:5px;"><a href="http://dx.doi.org/10.1103/PhysRevC.90.021601" title="DOI" target="_blank">10.1103/PhysRevC.90.021601</a> <tr><td class="formatRecordLabel"> Subject category </td><td style="padding-left:5px;">Nuclear Physics - Experiment</td></tr> <tr><td class="formatRecordLabel"> Accelerator/Facility, Experiment </td><td style="padding-left:5px;"><a href="http://cds.cern.ch/search?p=CERN%20PS&f=693__a">CERN PS</a> ; <a href="http://cds.cern.ch/search?p=TOF&f=693__e">TOF</a><br/><a href="http://cds.cern.ch/search?p=CERN%20PS&f=693__a">CERN PS</a> ; <a href="http://cds.cern.ch/search?p=nTOF&f=693__e">nTOF</a></td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique, with the $\beta$-decay of $^{12}$B measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate that model predictions, used in a variety of applications, are mostly inadequate. The value of the integral cross section reported here can be used as a benchmark for verifying or tuning model calculations.</td></tr> <tr><td class="formatRecordLabel"> Copyright/License </td><td style="padding-left:5px;"><a href="http://arxiv.org/licenses/nonexclusive-distrib/1.0/">arXiv nonexclusive-distrib. 1.0</a><br/>publication: © 2014-2025 American Physical Society</td></tr> </table> <br /><div style="max-width:1024px;margin:auto"><div style="overflow-x:auto;display:inline;width:100%;"><a href="/record/1752437/plots#0"><img style="vertical-align:middle;" src="http://cds.cern.ch/record/1752437/files/fig1.png" title=" (Color online) Current status of the $^{12}$C($n,p$)$^{12}$B cross section. Symbols represent experimental data, while lines show evaluated cross sections and model calculations." width="200px"/></a> <a href="/record/1752437/plots#1"><img style="vertical-align:middle;" src="http://cds.cern.ch/record/1752437/files/fig2.png" title=" (Color online) Fit of the time distribution of events in the C$_{6}$D$_{6}$, per neutron bunch, for the two different analysis techniques described in the text. In all cases, data are background-subtracted and corrected for the simulated efficiency. The lines are exponential fits of the data with t$_{1/2}$=20.2~ms." width="200px"/></a> <a href="/record/1752437/plots#2"><img style="vertical-align:middle;" src="http://cds.cern.ch/record/1752437/files/fig3.png" title=" (Color online) Number of $^{12}$B nuclei produced in the $^\mathrm{nat}$C sample per nominal neutron bunch. Symbols show the results of the standard approach for different thresholds on the energy deposited in the C$_{6}$D$_{6}$. The lines represent the results of the Pulse Height Weighting Technique with 200~keV threshold. The values are 68.03$\pm$0.66 and 68.74$\pm$0.44 for the Bicron and FZK detectors, respectively." width="200px"/></a> <a href='/record/1752437/plots'>Show more plots</a></div></div><br /> <br/>Corresponding record in: <a href="http://inspirehep.net/record/1312801">Inspire</a> <small> </small> <br/> <br/><br/><div align="right"><div style="padding-bottom:2px;padding-top:30px;"><span class="moreinfo" style="margin-right:10px;"> <a href="" class="moreinfo">Back to search</a> </span></div></div> <div class="bottom-left-folded"><div class="recordlastmodifiedbox" style="position:relative;margin-left:1px"> 記錄創建於2014-08-29，最後更新在2024-05-08</div></div> <div class="bottom-right-folded" style="text-align:right;padding-bottom:2px;"> <span class="moreinfo" style="margin-right:10px;"><a href="/search?ln=zh_TW&p=recid%3A1752437&rm=wrd" class="moreinfo">相似記錄</a></span></div> </div> </div> </div> <br/> <br /> <div class="detailedrecordminipanel"> <div class="top-left"></div><div class="top-right"></div> <div class="inside"> <div id="detailedrecordminipanelfile" style="width:33%;float:left;text-align:center;margin-top:0"> <div><small class="detailedRecordActions">全文:</small> <br /><a href="/record/1752437/files/arXiv:1408.6652.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Download fulltext"/>PDF</a><br /></div><small class="detailedRecordActions">External link:</small><br /><small><a href="http://arxiv.org/pdf/1408.6652.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Download fulltext"/>Preprint</a></small> </div> <div id="detailedrecordminipanelreview" style="width:30%;float:left;text-align:center"> </div> <div id="detailedrecordminipanelactions" style="width:36%;float:right;text-align:right;"> <ul class="detailedrecordactions"> <li><a href="/yourbaskets/add?ln=zh_TW&recid=1752437">Add to personal basket</a></li> <li>Export as <a style="text-decoration:underline;font-weight:normal" href="/record/1752437/export/hx?ln=zh_TW">BibTeX</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1752437/export/hm?ln=zh_TW">MARC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1752437/export/xm?ln=zh_TW">MARCXML</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1752437/export/xd?ln=zh_TW">DC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1752437/export/xe?ln=zh_TW">EndNote</a>,  <a style="text-decoration:underline;font-weight:normal" href="/record/1752437/export/xn?ln=zh_TW">NLM</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1752437/export/xw?ln=zh_TW">RefWorks</a> </li> </ul> <div style='padding-left: 13px;'>  <div id="bookmark"></div> <div id="bookmark_sciencewise"></div> <style type="text/css"> #bookmark_sciencewise, #bookmark {float: left;} #bookmark_sciencewise li {padding: 2px; width: 25px;} #bookmark_sciencewise ul, #bookmark ul {list-style-image: none;} </style> <script type="text/javascript" src="/js/jquery.bookmark.min.js"></script> <style type="text/css">@import "/css/jquery.bookmark.css";</style> <script type="text/javascript">// <![CDATA[ $.bookmark.addSite('sciencewise', 'ScienceWise.info', 'http://cds.cern.ch/img/sciencewise.png', 'en', 'bookmark', 'http://sciencewise.info/bookmarks/1408.6652/add'); $('#bookmark_sciencewise').bookmark({sites: ['sciencewise']}); $('#bookmark').bookmark({ sites: ['facebook', 'twitter', 'linkedin', 'google_plusone'], icons: '/img/bookmarks.png', url: 'http://cds.cern.ch/record/1752437', addEmail: true, title: "Measurement of the $^{12}$C($n,p$)$^{12}$B cross section at n_TOF (CERN) by in-beam activation analysis", description: "The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. 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