Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams

Forty-seven events of the type nu +Fe to mu /sup -/+ mu /sup -/+X and nine events of the type nu +Fe to mu /sup +/+ mu /sup +/+X have been observed, and zero events with like-sign muons of the opposite sign. Most of the observed events can be attributed to the background of normal charged current ev...

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Detalles Bibliográficos
Autores principales: Holder, M, Bloch, P, Devaux, B, Dorth, W, Dydak, F, Eisele, F, Geweniger, C, Grimm, M, Hepp, V, Kleinknecht, K, Knobloch, J, Maillard, J, May, J, Paar, H P, Palazzi, P, Peyaud, B, Rander, J, Savoy-Navarro, A, Schlatter, W D, Spahn, G, Steinberger, J, Suter, H, Tittel, K, Turlay, René, Wahl, H, Williams, E G H, Willutzki, H J, Wotschack, J
Lenguaje:eng
Publicado: 1977
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(77)90686-4
http://cds.cern.ch/record/878509
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author Holder, M
Bloch, P
Devaux, B
Dorth, W
Dydak, F
Eisele, F
Geweniger, C
Grimm, M
Hepp, V
Kleinknecht, K
Knobloch, J
Maillard, J
May, J
Paar, H P
Palazzi, P
Peyaud, B
Rander, J
Savoy-Navarro, A
Schlatter, W D
Spahn, G
Steinberger, J
Suter, H
Tittel, K
Turlay, René
Wahl, H
Williams, E G H
Willutzki, H J
Wotschack, J
author_facet Holder, M
Bloch, P
Devaux, B
Dorth, W
Dydak, F
Eisele, F
Geweniger, C
Grimm, M
Hepp, V
Kleinknecht, K
Knobloch, J
Maillard, J
May, J
Paar, H P
Palazzi, P
Peyaud, B
Rander, J
Savoy-Navarro, A
Schlatter, W D
Spahn, G
Steinberger, J
Suter, H
Tittel, K
Turlay, René
Wahl, H
Williams, E G H
Willutzki, H J
Wotschack, J
author_sort Holder, M
collection CERN
description Forty-seven events of the type nu +Fe to mu /sup -/+ mu /sup -/+X and nine events of the type nu +Fe to mu /sup +/+ mu /sup +/+X have been observed, and zero events with like-sign muons of the opposite sign. Most of the observed events can be attributed to the background of normal charged current events, in which one of the pions or kaons of the hadron shower decays, and so produces a second muon. The remaining events correspond to rates of the order of (3+or-2)*10/sup -4/ of those for charged current events. They may very well be due to the hadronic production of charm-anticharm pair, with subsequent decay of one member of the pair. The observed rates correspond to charm- anticharm pair production in 0.5-1% of the hadron showers. No evidence can be found for a lepton-cascade origin of the observed events. (6 refs).
id cern-878509
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1977
record_format invenio
spelling cern-8785092019-09-30T06:29:59Zdoi:10.1016/0370-2693(77)90686-4http://cds.cern.ch/record/878509engHolder, MBloch, PDevaux, BDorth, WDydak, FEisele, FGeweniger, CGrimm, MHepp, VKleinknecht, KKnobloch, JMaillard, JMay, JPaar, H PPalazzi, PPeyaud, BRander, JSavoy-Navarro, ASchlatter, W DSpahn, GSteinberger, JSuter, HTittel, KTurlay, RenéWahl, HWilliams, E G HWillutzki, H JWotschack, JLike-sign dimuon events produced in narrow-band neutrino and antineutrino beamsParticle Physics - PhenomenologyForty-seven events of the type nu +Fe to mu /sup -/+ mu /sup -/+X and nine events of the type nu +Fe to mu /sup +/+ mu /sup +/+X have been observed, and zero events with like-sign muons of the opposite sign. Most of the observed events can be attributed to the background of normal charged current events, in which one of the pions or kaons of the hadron shower decays, and so produces a second muon. The remaining events correspond to rates of the order of (3+or-2)*10/sup -4/ of those for charged current events. They may very well be due to the hadronic production of charm-anticharm pair, with subsequent decay of one member of the pair. The observed rates correspond to charm- anticharm pair production in 0.5-1% of the hadron showers. No evidence can be found for a lepton-cascade origin of the observed events. (6 refs).oai:cds.cern.ch:8785091977
spellingShingle Particle Physics - Phenomenology
Holder, M
Bloch, P
Devaux, B
Dorth, W
Dydak, F
Eisele, F
Geweniger, C
Grimm, M
Hepp, V
Kleinknecht, K
Knobloch, J
Maillard, J
May, J
Paar, H P
Palazzi, P
Peyaud, B
Rander, J
Savoy-Navarro, A
Schlatter, W D
Spahn, G
Steinberger, J
Suter, H
Tittel, K
Turlay, René
Wahl, H
Williams, E G H
Willutzki, H J
Wotschack, J
Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams
title Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams
title_full Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams
title_fullStr Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams
title_full_unstemmed Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams
title_short Like-sign dimuon events produced in narrow-band neutrino and antineutrino beams
title_sort like-sign dimuon events produced in narrow-band neutrino and antineutrino beams
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(77)90686-4
http://cds.cern.ch/record/878509
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