Состояние детектора и планы ( по материалам LAr и ATLAS Weeks, февраль 2007) Статус работ по калибровке калориметров Новости по обработке t-кварка Статус. - презентация

1 Состояние детектора и планы ( по материалам LAr и ATLAS Weeks, февраль 2007) Статус работ по калибровке калориметров Новости по обработке t-кварка Статус работ по медленному контролю Разное: статус нашего GRID кластера GRID tutorial в Дубне 19 апреля (заявка до 13 апреля) 6 апреля 2007

2 LHC schedule (L.Evans & Dec 2006 Council): last magnet installed March 07 machine closed August GeV (lum~10 29 :10 30, 75 ns between bunch crossings) November 07 7 TeV August 08 Calorimeters (plan of 20 February): end of access to ECA - end of June, Barrel A – 15 July, Barrel C and ECC – 15 August Problems: calorimeters - LV power supplies (BNL and CERN, modified version should be supplied starting from April) Inner detector - SCT and TRT - heaters problem, Pixels on retard LHC - failure of support structure of final focus inner triplet superconductive quadrupoles (1 of 28, all assembled by FNAL) during pressure test 27 March

3 Commissioning, integration, preparation to data acquisition (including the data quality control) OTSMOU = Operation Task Share Memorandum of Understanding 556 FTE/year, Россия должна обеспечить ~ 5 % ATHENA new release Update of hadronic shower models in GEANT4 (Bertini cascades, good for ~2-6 GeV) New ATLFAST version Plans to implement frozen showers library to speed up simulations CSC notes (Computer System Commissioning) new Physics TDR New round of simulations for detector calibration and physics 2 M events/day, большая нагрузка на очереди и хранилища данных (CASTOR) Bug with range cut in LAr (1 mm instead of 30 microns)

4 DM corrections procedure implemented in ATHENA 12 regions (56 DM zones in simulation with calibration hits) Different corrections for charged and neutral pions (now rely on realistic cluster type classification) Corrections coefficients now are retrieved from POOL/COOL data bases Out-of-cluster corrections added in Depend on physics environment (isolation moment) First try of whole calibration procedure on di-jet events, E jet-reco 0.9 E jet-true Attempt to use the lookup table in forward region | η | > 2.4 Cluster energy in EM scale (x) Reconstructed eta (y) DM energy (not including leakage) (z) More accurate assignment of DM energy to clusters

5 DM total energy, MeV / event / (2x2 cm 2 ) for 100 GeV, 4000 events, flat distributions over 0. < | | < 5, 0. < | | < 2

6 Reconstructed energy and resolution for 100 GeV (ATHENA )

7 Reconstructed energy and resolution for 100 GeV (ATHENA )

8 Reconstructed energy and resolution for 20 GeV (ATHENA )

9 Reconstructed energy and resolution for 20 GeV (ATHENA )

10 dφ in magnetic field (radians) for 20 GeV (ATHENA )

11 Physics simulation and analysis chain Generator info (MC true) GEANT4 or ATLFAST RDO (output of digitization) 2 Mb/event simulation (1.5 experiment) ESD (event summary data) 0.5 Mb/event AOD (analysis object data) 100 kb/event ( -> 50 ?) Output of several jet algorithms (different size cones, Kt) may be stored simultaneously Object containers (muons, electrons, photons, jets, b-jets etc) Duplicates tagging and/or removal (TopView, Akira Shibata) New data samples for CSC notes available (GRID and CASTOR)

12 The top group CSC Notes TopGroupNoteT1Leptons (Pralavorio) TopGroupNoteT2LightJets (Schwindling) TopGroupNoteT3BJetsTopGroupNoteT3BJets (Hawkings) TopGroupNoteT5TriggerTopGroupNoteT5Trigger (Wengler) TopGroupNoteT6CrossSectionTopGroupNoteT6CrossSection (Bentvelsen, Cobal) TopGroupNoteT7TopProperties (Onofre, Tokar) TopGroupNoteT8SingleTopTopGroupNoteT8SingleTop (A. Lucotte, S. Rolli) TopGroupNoteT9TopMassTopGroupNoteT9TopMass (Pallin, Etienvre) Щегельский, Федин (PNPI) – Single Top Бедняков, Храмов (Дубна) – измерение заряда, tt-bar-резонансы Костюхин (INFN) – измерение массы MPI (Munich) – tt-bar semileptonic decays, jets energy scale calibration

13 Медленный контроль и электроника Две задачи: 1) Программирование в PVSS (А. Талышев, И. Орлов) 2) Калибровка и анализ данных (К. Котов, В. Бобровников ?) В середине марта был залит End-Cap A и начато охлаждение End-Cap-а С Пьедесталы, шумы (в том числе коррелированные + внешние наводки), ramp- и delay-runs, Optimal Filtering Coefficients, cross-talk studies, HV test, проверка новых LV источников питания крейтов, набор космических мюонов, настройка триггера и DAQ Emmanuel Monnier (Marseille, EMEC phase 3 commissioning coordinator) Manuela Vincter (Carleton, commissioning analysis coordinator) Patric Puzo (CERN) + В. Филимонов (PNPI) – thermocontrol, ELMB Francesco Tartarelli (Milano) + Helmut Braun – HV control С. Чекулаев (Toronto, PVSS expert) -> new PVSS interface for HV control ?

14

15 Описание схемы идентификаторов для хитов в мертвом веществе: Version_1.9.txt, Version_1.10_draft.txt

16 Идентификаторы для хитов в мертвом веществе: [detector, type, sampling, region, etaBin, phiBin], гранулярность = = Version_1.10c_draft.txt DM total energy (MeV / event / DM zone) for 100 GeV, 0. < | | < 5.

17 Reconstructed energy and resolution for 100 GeV (ATHENA )