Szuperszimmetrikus részecskék keresése nagyenergiájú proton-proton ütközésekben  részletek

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Projekt adatai

  
azonosító
37350
típus K
Vezető kutató Tóth József
magyar cím Szuperszimmetrikus részecskék keresése nagyenergiájú proton-proton ütközésekben
Angol cím Serch for supersymmetric particles in high energy proton-proton collisions
zsűri Fizika 1
Kutatóhely RMI - Nagyenergiás Fizikai Osztály (HUN-REN Wigner Fizikai Kutatóközpont)
résztvevők Boldizsár László
Debreczeni Gergely
Manno István
Urbán László
projekt kezdete 2002-01-01
projekt vége 2006-12-31
aktuális összeg (MFt) 9.976
FTE (kutatóév egyenérték) 0.00
állapot lezárult projekt





 

Zárójelentés

  
kutatási eredmények (magyarul)
A Genf székhelyű, összeurópai finanszírozású Európai Részecskefizikai Központban (CERN) épülő új gyorsító, az LHC előreláthatólag 2008-ban - a világon elsőként -14 TeV energiájú proton-proton ütközéseket szolgáltat. Ezzel lehetővé válik, hogy az elemi részecskék közötti kölcsönhatásokat és az azokban megnyilvánuló szimmetria tulajdonságokat minden eddiginél magasabb energiatartományban kísérletileg is tanulmányozhassuk. Ennek érdekében a Marseillei Részecskefizikai Központ (CPPM) kutatóival együtt részt vettünk a mintegy 150 laboratórium 1600 fizikusát egyesítő ATLAS kollaboráció épülő detektora elektromágneses kalorimétere záróegységeinek megépítésében: az ezt alkotó modulok összeszerelésében, elektronikus tesztjeiben, különböző részecskenyalábokkal történő besugárzásában és az így nyert adatok kiértékelésében. Létrehoztuk a záróegységek működését leíró számítógépes programrendszer számos elemét. Modelleztük a detektorban lejátszódó elektromágneses folyamatokat, új algoritmust definiáltunk a sokszoros Coulomb szórás leírására. Vizsgáltuk a záróegységek fizikai tulajdonságait, így pl. energia- és térfelbontó képességüket. Megállapítottuk, hogy ezek összhangban vannak a tervezett paraméterekkel, ami lehetővé teszi, hogy a záróegységeket mind a precíziós mérésekben, mind pedig a proton-proton ütközésekben keletkező események energiaegyensúlyának kiértékelésében eredményesen használhassuk
kutatási eredmények (angolul)
The Large Hadron Collider (LHC) is under construction at the Organization Européenne pour la Recherche Nucléaire (CERN), Genf, Switzerland. It is going to provide world highest energy proton-proton collisions of 14 TeV in 2008. This makes a unique possibility to study experimentally the interactions and symmetry features of the elementary particles in a not yet studied energy region. Together with the physics group of the Centre de Physique des Particules de Marseille (CPPM), we participated in several aspects of the construction of the endcaps of the electromagnetic calorimeter (EMEC) of the Atlas collaboration, an organization including about 1500 physicists of 150 laboratories around the world. We contributed to the assembly, electrical tests, data recording and analysis taken at the CERN's test beam irradiation of the EMEC modules. We worked out several items of the EMEC simulation software. Computer models of the electromagnetic interactions taking place in the material of the detector were studied and improved. A new algorithm to describe the multiple Coulomb scattering was created and implemented into the Geant4 simulation software. Physics performance (energy and space resolution, particle identification capability etc.) of EMEC modules was proven to be compatible with the design specifications. This makes possible to use these detectors, as part of the Atlas detector complex, in high precision measurements and measuring energy balance of the future p-p collisons at LHC.
a zárójelentés teljes szövege http://real.mtak.hu/175/
döntés eredménye
igen





 

Közleményjegyzék

  
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