ATLAS: Moroccan participation Rajaa Cherkaoui El Moursli Mohammed V Agdal University Faculty of Sciences 1Valencia November 2010

Outline  MARWAN (the Moroccan Wide Area Network) EUMEDGRID, EUMEDConnect and GEANT  RUPHE (Réseau Universitaire de Physique des Hautes Energies) Moroccan High Energy Physics Network  Scientific collaboration: AI, GDRI, LIA and PCI. 2Valencia November 2010

MARoc Wide Area Network (MARWAN 2) 3 Rabat Casablanca the Moroccan National Research and Education Network Valencia November 2010

EumedConnect 4Valencia November 2010

MaGrid (CNRST-Morocco) 5 Support to e-science activities connection to EGEE Grid MaGrid Certification Authority has been installed and accredited since 2007 Valencia November 2010

MaGrid ressources (Topology of today) 6Valencia November 2010 As you can see, MaGrid ressources are: 5 Worker Nodes (WN) 2 GB de RAM et 80 GB d’espace disque. 1 Computing Element (CE) 1 GB de RAM et 160 GB d’espace disque. 1 MonBox (MON) 1 GB de RAM et 160 GB d’espace disque. 1 User Interface (UI) 1 GB de RAM et 160 GB d’espace disque. 1 Resource Broker / Berkely Database Information Index (RB/BDII1 GB de RAM et 160 GB d’espace disque. 1 VOMS/Proxy c 1 GB de RAM et 160 GB d’espace disque. 1 DPM Storage Element (SE) 8 GB de RAM et 12TB d’espace disque.

MaGrid ressources ( Topology 2011) Futur site with SL5.4/64bit gLite3.2 Migration to SL5.4/64bit and gLite3.2 SL5.4/64bit gLite3.2 7Valencia November 2010

RUPHE (Réseau Universitaire des Hautes Energies -Morocco)  1996 : Morocco joined ATLAS experiment  RUPHE : Moroccan High Energy Physics Network - 5 Universities: Rabat, Casablanca, Marrakech, Oujda, Tanger - CNESTEN (the National Center for Energy, Science and Nuclear Technics) 8Valencia November 2010

Morocco in ATLAS 1 sector 64 sectors (8 modules / sector) = 512 modules (50000 anodes ) Mechanical and electrical test of anodes Rabat and Casablanca anode 1 Module Participation to the ATLAS electromagnetic presampler construction 9Valencia November 2010

10 Morocco in ATLAS the insertion of 32 sectors of the presampler at CERN. Valencia November 2010

Morocco in ATLAS  Physics and detector simulations  Test beam (shifts, assembling, insertion, …) at CERN  Analysis of combined test beam data  Simulated and Real Data Analysis 11Valencia November 2010

Collaboration with France  LPSC (Grenoble)/ Science University (Rabat and Casablanca : Integrated Action (AI) ( )  CPPM Marseille/ Science University Oujda: PICS ( )  GDRI (International Research Group ) ( )  LIA (International Associate Laboratory ) named « ILCP: International Laboratory for Collider Physics » ( ) 12Valencia November 2010

Collaboration with Spain  the 2007MA0057 Project between the CNRST and CSIC  PCI2009 ( A/023372/09) project between University of Valencia and Mohammed V Agdal University  An agreement for a convention between these 2 universities will soon be established  An Integrated Action in the futur Valencia November

PHD Theses in Rabat (ATLAS)  « Etude des performances du Pre-Echantillonneur Central d'ATLAS», Younouss EL MOUAHHIDIN, soutenue le 14 mars  « Une possibilité de déterminer la fonction de structure du gluon dans l’expérience ATLAS en utilisant la section efficace - jet dans les collisions pp à = 14 TeV au LHC », El Mamoun ABOUELOUAFA, soutenue le 14 mars 2002  « Search for The charge asymmetry in top anti-top resonance » Smail Belaaouja  « Prospects for Z’ Search using the Z’ → semi-leptonic channel » Zineb El Mouridi 14Valencia November 2010

Some other Theses throughout Morocco  Study of the Top Quark Properties & Effect of New Physics – Sara Boutouil (LPC&CERN /Oujda)  Observation of Bd->Jpsi(mu,mu) Ks(pipi) resonance in ATLAS and Crosstalk correction - Mohamed Gouighri (CERN/Casablanca)  Measurement of the Higgs mass & analog vs. digital energy reconstruction in the Si-W ECAL for ILC - Youssef Khoulaki (Casablanca/Grenoble)  Studying New Gauge Boson Z’ in di-leptonic Channel and the Electronic calibration system of the Electromagnetic Calorimeter at ATLAS - Said Lablak (Casablanca)  Phenomenology of Higgs triplet model - Larbi Rahili (Tanger/Montpellier) 15Valencia November 2010

« Search for The charge asymmetry in top anti- top resonance » Smail Belaaouja (IFIC, Marcel Vos) Motivation :  QCD prediction: At tree level, tt~pair production at LHC is charge symmetric But at Ο(α s 3 ) order tt~ pair production is a charge asymmetic Definition  The charge asymmetricy is defined as: N t ( cosθ ): number of top quark produced in an angle θ N tbar ( cosθ ): number of anti-top quark produced in an angleθ Valencia November

Model :  The top quark charge asymmetry Beyond the SM at the LHC (topBSM)  This model includes a number of intermediate resonances states that decay into ttbar:  The topBSM is implemented to study effects in the ttbar invariant mass spectrum  Possible resonances studied in the ttbar spectrum : a spin1 color singlet (similar to the SM Z boson) a spin1 color octet (similar to a heavy gluon) Process: Tool :  MadGraph Generator « Search for The charge asymmetry in top anti- top resonance » Smail Belaaouja (IFIC, Marcel Vos)

Results :  Cut on the invariant mass with |  | < 1 (the asymetry is more importante) Valencia November mtt > 500 GeVmtt > 700 GeVmtt > 1000 GeV Resonance : spin1 color singlet Resonance : spin1 color octet  The values of the asymmetry depend on the cut on the invariant mass  Other resonances are being studied  Similar results obtained for the measured Results

Z’ → semi-leptonic channel Zineb El Mouridi (LPC) Valencia November  The aim: Reconstruct the ttbar spectrum to measure the ATLAS sensitivity for a Z’ resonance creation (Beyond SM) ttbar decay mode : semi leptonic  Comparison between : Reconstructed mass distribution and truth mass distribution for Z’ studied samples (500 GeV, to 3TeV) with an additional jet added if found

New researches  Medical Physics (in Rabat and Oujda) - Simulation with GEANT4 and GATE (scanner, accelerator) in radiology, nuclear medicine, radiotherapy  Conception and design of Detector in the International Linear Collider (ILC) (In Casablanca) 20Valencia November 2010

THANK YOU Valencia November