18988Developments for ATLAS...VIEWcriticalOAI-RUL2009-09-15 16:09:55super:TERESAB2009-10-21 15:39:32super:TERESABDUL0119917technicaltext_md 4505462 CRC32 b948acb6 MD5 d829cb8bd152d8e747010c9275387344 SHA-1 4f08f2fb008bf70d9ec32025e2151b05daffb3de application/octet-stream ]]>19918changehistorychangehistory_mdServiceTechnicalMetadataExtractorTechnical Metadata Extraction2009-09-15T16:11:17.160+01:00Add some metadata to the digital entity using jhovesoftware_usedJHove]]>19919 descriptivedcDevelopments for ATLAS online data processimg: quality access tools and B-Physics trigger algorithms for J/ψ→e+e-Neves, Ricardo Manuel Ramos dos SantosAmorim, AntónioTese de mestrado em Física (Física Nuclear e Partículas), apresentada à Universidade de Lisboa, através da Faculdade de Ciências, 2008Resumo alargado disponível em portuguêsFísica nuclearengopen accessinfo:eu-repo/semantics/masterThesisapplication/pdfhttp://catalogo.ul.pt/F/?func=item-global&doc_library=ULB01&type=03&doc_number=000559221The work presented here results from a collaboration with two parts of the Trigger and Data Acquisition (TDAQ) project of the ATLAS experiment, at CERN, Switzerland. Firstly, in collaboration with the group responsible for selecting B-physics events at the Trigger system, I studied the possibility of triggering the channel B → J/ψ→e+e-. The variables used to select these events were investigated and a selection algorithm implemented to achieve the best efficiency whilst maintaining tolerable background rates. Secondly, a method for browsing monitoring histograms databases was developed. This application called NODE can be access histograms through a graphical user interface. It was developed within the framework of the TDAQ Monitoring Working Group.Partículas2008]]>18988_ULFC091241_TM_Tese.pdfpdfapplication/pdf/digitool_storage/deposit-master/2009/09/15/file_1/189881006-14505462