6533b82dfe1ef96bd1291d0c
RESEARCH PRODUCT
Alignment for the first precision measurements at Belle II
Allen CaldwellLadislav AndricekK. WanP. KapustaB. KisielewskiM. SchneckeS. HalderA. IshikawaS. KrivokucaT. BilkaJ. LibbyOscar AlonsoK. H. KangTomoyuki KonoS. YamadaStephan PaulS. BacherF. BuchsteinerMikihiko NakaoW. OstrowiczChiara La LicataL. LanceriL. SanteljPrafulla Kumar BeheraSeungcheol LeeU. LeisH. WindelP. LeitlK. AckermannB. SpruckJuan FusterKatsuro NakamuraK. ChilikinTakeo HiguchiS. HazraJ.a.m. GrimaldoSeokhee ParkNorbert WermesKoji HaraJochen DingfelderFlorian SchopperC. W. JooS. DasS. SkambraksR. ItohJames WebbNils BraunP. AhlburgM. FrasZ. NatkaniecJesus AbudinenRainer RichterMichael RitzertE. TafelmayerFelix Johannes MüllerChristoph SchwandaV. BabuR. ThalmeierEugenio PaoloniS. WatanukiT. KuhrZhen’an LiuA. BozekT. ZhangS. StefkovaMarkus FriedlIgor KonorovU. GebauerYinghui GuanH. G. MoserB. ScavinoS. N. MayekarToru TsuboyamaY. UematsuL. CoronaAngel DieguezM. KumarP. WieduwiltS. ReiterN. DashThomas GesslerD. KloseA. FreyJ. BaudotU. StolzenbergDipak Kumar SahooL. ZaniJelena NinkovicA. B. KaliyarDaniel EsperanteM. HeckJ. SanchezThomas LückChunhua LiGerhard LiemannB. PaschenY. B. LiA. PaladinoP. KodyšJakub KandraN. RoutS. Y. SuzukiJ. WiechczynskiChristian IrmlerAl VirtoC. CamienMaiko TakahashiS. BahinipatiPablo Gomis LópezB. DeschampsG. BatignaniS. MccarneyA. RabusovM. HoekM. KaletaD. KittlingerR. SedlmeyerC. NiebuhrK. AdamczykT. MoriiH. YinY. SolovievI. Ripp-baudotK. LautenbachPeter KvasnickaF. PoblotzkiB. GobboK. LalwaniHua YeZ. DoležalL. MacharskiJens Sören LangeT. CzankVladimir ChekelianN. SatoT. KohrikyFrank SimonH. SchreeckSouvik MaityCarlos MarinasD. ČErvenkovM. HenselBoqun WangD. MoyaK. K. RaoO. VerbyckaLorenzo VitaleIvan PericDaniel GreenwaldK. GadowL. GioiMarca BoronatMohammed AlbalawiTomasz HemperekMarcel VosOskar HartbrichE. GanievG. B. MohantyC. KieslingG. RizzoR. SteverShuji TanakaH. AiharaT. AzizR. AyadF. MüllerC. KleinwortC. WesselY. OnukiStefan M. HuberConcettina SfientiGaetano De MarinoGerhard SchallerChristian KoffmaneF. FortiGiulia CasarosaRajeev KumarS. VogtCarlos LacastaH. B. JeonIvan VilaH. ParkS. BettariniBenjamin SchwenkerM. GabrielG. DujanyG. GiakoustidisH. TanigawaQingyuan LiuMartin RitterDmytro LevitYeqi ChenF. LuettickeHans Krügersubject
QC1-999vertex detectorDetector calibrationBELLECosmic rayprogramming01 natural sciencesNuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex][INFO]Computer Science [cs][PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010306 general physicsPhysicsMuonCOSMIC cancer database010308 nuclear & particles physicsPhysicsDetectordetector: alignmenttracksMagnetic fieldVertex (geometry)cosmic radiationdrift chamberHigh Energy Physics::ExperimentVertex detectorperformancedescription
On March 25th 2019, the Belle II detector recorded the first collisions delivered by the SuperKEKB accelerator. This marked the beginning of the physics run with vertex detector. The vertex detector was aligned initially with cosmic ray tracks without magnetic field simultaneously with the drift chamber. The alignment method is based on Millepede II and the General Broken Lines track model and includes also the muon system or primary vertex position alignment. To control weak modes, we employ sensitive validation tools and various track samples can be used as alignment input, from straight cosmic tracks to mass-constrained decays. With increasing luminosity and experience, the alignment is approaching the target performance, crucial for the first physics analyses in the era of Super-BFactories. We will present the software framework for the detector calibration and alignment, the results from the first physics run and the prospects in view of the experience with the first data.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-11-04 |