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Search for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$
We have searched for the decay $D^0 \rightarrow \mu^+\mu^-$ among $2.0 \times 10^5$ $\mu^+\mu^-$ pairs \hbox{produced,} in the WA92 experiment, by 350 GeV/$c$ \ $\pi^-$ particles interacting in copper and tungsten targets. \hbox{Using} a high-resolution silicon-microstrip detector followed by a larg...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1997
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0370-2693(97)00775-2 http://cds.cern.ch/record/327487 |
| _version_ | 1780890985040969728 |
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| author | Adamovich, M I Alexandrov, Yu A Angelini, C Barberis, D Ceradini, F Cianfarani, C Cirilli, M Dameri, M Darbo, G Duane, A Flaminio, Vincenzo Forino, A French, Bernard R Frenkel, A Gemme, C Harrison, K Hurst, R B Kirk, A Lazzeroni, C Malferrari, L Martellotti, G Martinengo, P Mazzanti, P McEwen, E G Nechaeva, P Yu Orestano, D Osculati, B Penso, G Pontecorvo, L Quareni, A Rossi, L Veneziano, Stefano Verzocchi, M Websdale, David M Zanello, L Zavertyaev, M V |
| author_facet | Adamovich, M I Alexandrov, Yu A Angelini, C Barberis, D Ceradini, F Cianfarani, C Cirilli, M Dameri, M Darbo, G Duane, A Flaminio, Vincenzo Forino, A French, Bernard R Frenkel, A Gemme, C Harrison, K Hurst, R B Kirk, A Lazzeroni, C Malferrari, L Martellotti, G Martinengo, P Mazzanti, P McEwen, E G Nechaeva, P Yu Orestano, D Osculati, B Penso, G Pontecorvo, L Quareni, A Rossi, L Veneziano, Stefano Verzocchi, M Websdale, David M Zanello, L Zavertyaev, M V |
| author_sort | Adamovich, M I |
| collection | CERN |
| description | We have searched for the decay $D^0 \rightarrow \mu^+\mu^-$ among $2.0 \times 10^5$ $\mu^+\mu^-$ pairs \hbox{produced,} in the WA92 experiment, by 350 GeV/$c$ \ $\pi^-$ particles interacting in copper and tungsten targets. \hbox{Using} a high-resolution silicon-microstrip detector followed by a large-acceptance magnetic spectrometer and a muon filter we are able to measure the momentum of the muons, to visualize the event topology near their point of origin, and thus to discriminate between prompt and non-prompt muons. No $D^0 \rightarrow \mu^+\mu^-$ candidate has been found. This result allows us to set an upper limit on the branching fraction \hbox {B$(D^0 \rightarrow \mu^+\mu^-)$} of $ 4.1 \times 10^{-6}$ at 90 \% confidence level. |
| id | cern-327487 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1997 |
| record_format | invenio |
| spelling | cern-3274872019-09-30T06:29:59Zdoi:10.1016/S0370-2693(97)00775-2http://cds.cern.ch/record/327487engAdamovich, M IAlexandrov, Yu AAngelini, CBarberis, DCeradini, FCianfarani, CCirilli, MDameri, MDarbo, GDuane, AFlaminio, VincenzoForino, AFrench, Bernard RFrenkel, AGemme, CHarrison, KHurst, R BKirk, ALazzeroni, CMalferrari, LMartellotti, GMartinengo, PMazzanti, PMcEwen, E GNechaeva, P YuOrestano, DOsculati, BPenso, GPontecorvo, LQuareni, ARossi, LVeneziano, StefanoVerzocchi, MWebsdale, David MZanello, LZavertyaev, M VSearch for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$Particle Physics - ExperimentWe have searched for the decay $D^0 \rightarrow \mu^+\mu^-$ among $2.0 \times 10^5$ $\mu^+\mu^-$ pairs \hbox{produced,} in the WA92 experiment, by 350 GeV/$c$ \ $\pi^-$ particles interacting in copper and tungsten targets. \hbox{Using} a high-resolution silicon-microstrip detector followed by a large-acceptance magnetic spectrometer and a muon filter we are able to measure the momentum of the muons, to visualize the event topology near their point of origin, and thus to discriminate between prompt and non-prompt muons. No $D^0 \rightarrow \mu^+\mu^-$ candidate has been found. This result allows us to set an upper limit on the branching fraction \hbox {B$(D^0 \rightarrow \mu^+\mu^-)$} of $ 4.1 \times 10^{-6}$ at 90 \% confidence level.CERN-PPE-97-058oai:cds.cern.ch:3274871997-05-20 |
| spellingShingle | Particle Physics - Experiment Adamovich, M I Alexandrov, Yu A Angelini, C Barberis, D Ceradini, F Cianfarani, C Cirilli, M Dameri, M Darbo, G Duane, A Flaminio, Vincenzo Forino, A French, Bernard R Frenkel, A Gemme, C Harrison, K Hurst, R B Kirk, A Lazzeroni, C Malferrari, L Martellotti, G Martinengo, P Mazzanti, P McEwen, E G Nechaeva, P Yu Orestano, D Osculati, B Penso, G Pontecorvo, L Quareni, A Rossi, L Veneziano, Stefano Verzocchi, M Websdale, David M Zanello, L Zavertyaev, M V Search for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$ |
| title | Search for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$ |
| title_full | Search for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$ |
| title_fullStr | Search for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$ |
| title_full_unstemmed | Search for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$ |
| title_short | Search for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$ |
| title_sort | search for the flavour-changing neutral-current decay $d^0 \to \mu^{+}\mu^{-}$ |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/S0370-2693(97)00775-2 http://cds.cern.ch/record/327487 |
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