Constraining neutrino superluminality from searches for sterile neutrino decays
Identifieur interne : 000924 ( Main/Exploration ); précédent : 000923; suivant : 000925Constraining neutrino superluminality from searches for sterile neutrino decays
Auteurs : D. S. Gorbunov [Russie] ; E. Ya. Nugaev [Russie]Source :
- Physics letters. Section B [ 0370-2693 ] ; 2012.
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- Pascal (Inist)
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Abstract
Superluminal neutrinos are expected to lose energy due to bremsstrahlung. It is dominated by e+e--pair production if kinematically allowed. The same signature was used in searches for 3-body decays of hypothetical heavy sterile neutrinos. From the published analyses of these searches performed by CERN PS191 and CHARM experiments we set upper limits on the neutrino velocity in the energy range from 0.2 GeV to 280 GeV. Our limits are well below the neutrino velocity favored by the recent OPERA results. For energy-independent neutrino velocity the limits obtained in this Letter are stronger than those coming from ICARUS experiment and observations of Supernova SN1987a.
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Nugaev</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7a</s1><s2>Moscow 117312</s2><s3>RUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Russie</country><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0277446</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 12-0277446 INIST</idno><idno type="RBID">Pascal:12-0277446</idno><idno type="wicri:Area/PascalFrancis/Corpus">000089</idno><idno type="wicri:Area/PascalFrancis/Curation">000443</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000078</idno><idno type="wicri:doubleKey">0370-2693:2012:Gorbunov D:constraining:neutrino:superluminality</idno><idno type="wicri:Area/Main/Merge">000923</idno><idno type="wicri:Area/Main/Curation">000924</idno><idno type="wicri:Area/Main/Exploration">000924</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Constraining neutrino superluminality from searches for sterile neutrino decays</title><author><name sortKey="Gorbunov, D S" sort="Gorbunov, D S" uniqKey="Gorbunov D" first="D. S." last="Gorbunov">D. S. Gorbunov</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7a</s1><s2>Moscow 117312</s2><s3>RUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Russie</country><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Nugaev, E Ya" sort="Nugaev, E Ya" uniqKey="Nugaev E" first="E. Ya." last="Nugaev">E. Ya. Nugaev</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7a</s1><s2>Moscow 117312</s2><s3>RUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Russie</country><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Physics letters. Section B</title><title level="j" type="abbreviated">Phys. lett., Sect. B</title><idno type="ISSN">0370-2693</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Physics letters. Section B</title><title level="j" type="abbreviated">Phys. lett., Sect. B</title><idno type="ISSN">0370-2693</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bremsstrahlung</term><term>CERN</term><term>Heavy neutrino</term><term>Pair production</term><term>Positron annihilation</term><term>Supernovae</term><term>Upper bound</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Neutrino lourd</term><term>Rayonnement freinage</term><term>Annihilation positon</term><term>Production paire</term><term>CERN</term><term>Borne supérieure</term><term>Supernova</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Superluminal neutrinos are expected to lose energy due to bremsstrahlung. It is dominated by e<sup>+</sup>e<sup>-</sup>-pair production if kinematically allowed. The same signature was used in searches for 3-body decays of hypothetical heavy sterile neutrinos. From the published analyses of these searches performed by CERN PS191 and CHARM experiments we set upper limits on the neutrino velocity in the energy range from 0.2 GeV to 280 GeV. Our limits are well below the neutrino velocity favored by the recent OPERA results. For energy-independent neutrino velocity the limits obtained in this Letter are stronger than those coming from ICARUS experiment and observations of Supernova SN1987a.</div></front></TEI><affiliations><list><country><li>Russie</li></country><region><li>District fédéral central</li></region><settlement><li>Moscou</li></settlement></list><tree><country name="Russie"><region name="District fédéral central"><name sortKey="Gorbunov, D S" sort="Gorbunov, D S" uniqKey="Gorbunov D" first="D. S." last="Gorbunov">D. S. Gorbunov</name></region><name sortKey="Nugaev, E Ya" sort="Nugaev, E Ya" uniqKey="Nugaev E" first="E. Ya." last="Nugaev">E. Ya. Nugaev</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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