IDEAS home Printed from https://ideas.repec.org/a/wsi/ijmpcx/v05y1994i05ns0129183194001008.html
   My bibliography  Save this article

An On-Line Non-Leptonic Neural Trigger Applied To An Experiment Looking For Beauty

Author

Listed:
  • C. BALDANZA

    (INFN ANNETTHE, Bologna, Italy)

  • F. BISI

    (INFN ANNETTHE, Bologna, Italy)

  • A. COTTA-RAMUSINO

    (INFN ANNETTHE, Bologna, Italy)

  • I. D’ANTONE

    (INFN ANNETTHE, Bologna, Italy)

  • L. MALFERRARI

    (INFN ANNETTHE, Bologna, Italy)

  • P. MAZZANTI

    (INFN ANNETTHE, Bologna, Italy)

  • F. ODORICI

    (INFN ANNETTHE, Bologna, Italy)

  • R. ODORICO

    (INFN ANNETTHE, Bologna, Italy)

  • M. ZUFFA

    (INFN ANNETTHE, Bologna, Italy)

  • C. BRUSCHINI

    (INFN, Genova, Italy)

  • P. MUSICO

    (INFN, Genova, Italy)

  • P. NOVELLI

    (INFN, Genova, Italy)

  • M. PASSASEO

    (CERN, Geneva, Switzerland)

Abstract

Results from a non-leptonic neural-network trigger hosted by experiment WA92, looking for beauty particle production from 350 GeVπ−on a Cu target, are presented. The neural trigger has been used to send on a special data stream (the Fast Stream) events to be analyzed with high priority. The non-leptonic signature uses microvertex detector data and was devised so as to enrich the fraction of events containing C3 secondary vertices (i.e, vertices having three tracks whith sum of electric charges equal to +1 or -1). The neural trigger module consists of a VME crate hosting two ETANN analog neural chips from Intel. The neural trigger operated for two continuous weeks during the WA92 1993 run. For an acceptance of 15% for C3 events, the neural trigger yields a C3 enrichment factor of 6.6–7.1 (depending on the event sample considered), which multiplied by that already provided by the standard non-leptonic trigger leads to a global C3 enrichment factor of ≈150. In the event sample selected by the neural trigger for the Fast Stream, 1 every ≈7 events contains a C3 vertex. The response time of the neural trigger module is 5.8 μs.

Suggested Citation

  • C. Baldanza & F. Bisi & A. Cotta-Ramusino & I. D’Antone & L. Malferrari & P. Mazzanti & F. Odorici & R. Odorico & M. Zuffa & C. Bruschini & P. Musico & P. Novelli & M. Passaseo, 1994. "An On-Line Non-Leptonic Neural Trigger Applied To An Experiment Looking For Beauty," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 5(05), pages 863-870.
    • Handle: RePEc:wsi:ijmpcx:v:05:y:1994:i:05:n:s0129183194001008
    DOI: 10.1142/S0129183194001008
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S0129183194001008
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S0129183194001008?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:ijmpcx:v:05:y:1994:i:05:n:s0129183194001008. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/ijmpc/ijmpc.shtml .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.