The CLAS12 Silicon Vertex Tracker

Antonioli, M.A.; Baltzell, N. A.; Boyarinov, S.V.; Bonneau, P.; Christo, S.; Cuevas, C.; Defurne, M.; Derylo, G.; Elouadrhiri, L.; Eng, B.; Ewing, Teresa K.; Gilfoyle, G. P.; Gotra, Y.; Leffel, M.; Mandal, Saptarshi; Marzolf, B.; McMullen, M.; Merkin, M.; Miller, R.; Raydo, B.; Teachey, W.; Tucker, Ross; Ungaro, M.; Yegneswaran, A.; Zana, L.

doi:10.1016/j.nima.2020.163701

Cited by 14 publications

(5 citation statements)

References 14 publications

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“…The SVT [9] geometry is implemented through a JAVA service, the same used to provide the geometry to the reconstruction software [18]. This service provides the Geant4 definitions that are read by the GEMC PERL API to build the geometry database.…”

Section: Silicon Vertex Tracker (Svt)mentioning

confidence: 99%

The CLAS12 Geant4 simulation

Ungaro

Angelini

Battaglieri

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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The Geant4 Monte-Carlo (GEMC) package is used to simulate the passage of particles through the various CLAS12 detectors. The geometry is implemented through a database of Geant4 volumes created either through the GEMC native API, by the CLAS12 geometry service, or imported from the CAD engineering model. The truth information is digitized with a plugin mechanism by routines specific to each detector and includes the use of the CLAS12 calibration database constants to produce both ADC and TDC response functions. Theoretical models that produce the generated events interface with GEMC through the LUND data format. The merging of simulated data with real random trigger data provides a mechanism to include both beam and electronic background into the simulation of generated events to accurately model beam data from the CLAS12 detector. The performance of simulation is demonstrated by comparison with the experimental data.

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Section: Silicon Vertex Tracker (Svt)mentioning

confidence: 99%

The CLAS12 Geant4 simulation

Ungaro

Angelini

Battaglieri

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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“…Of relevance in this work is a CO 2 -filled high threshold Cherenkov detector that spans the full azimuthal range, which is used as part of the trigger selection for electrons [46]. The Central Detector consists of a multi-layer vertex tracker [47,48] surrounded by a barrel of scintillation counters for charged particle identification [49] via precision flight time measurements. Each of the active elements of these detectors resides within the 5-T solenoid field.…”

Section: σ 0 Transferred Polarizationmentioning

confidence: 99%

Beam-recoil transferred polarization in K+Y electroproduction in the nucleon resonance region with CLAS12

Carman¹,

D’Angelo²,

Lanza³

et al. 2022

Phys. Rev. C

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Beam-recoil transferred polarizations for the exclusive electroproduction of K + Λ and K + Σ 0 final states from an unpolarized proton target have been measured using the CLAS12 spectrometer at Jefferson Laboratory. The measurements at beam energies of 6.535 GeV and 7.546 GeV span the range of four-momentum transfer Q 2 from 0.3 to 4.5 GeV 2 and invariant energy W from 1.6 to 2.4 GeV, while covering the full center-of-mass angular range of the K + . These new data extend the existing hyperon polarization data from CLAS in a similar kinematic range but from a significantly larger dataset. They represent an important addition to the world data, allowing for better exploration of the reaction mechanism in strangeness production processes, for further understanding of the spectrum and structure of excited nucleon states, and for improved insight into the strong interaction in the regime of non-perturbative dynamics.

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“…The solenoid serves to focus the lowenergy Møller background down the beam pipe to the beam dump away from the acceptance of the spectrometer. The detectors mounted within the solenoid include a thick scintillation counter barrel for neutron identification called the Central Neutron Detector (CND) [3], a barrel of thin scintillation counters for charged-particle time measurements called the Central Time-of-Flight (CTOF) system, and the central tracking system (composed of the Silicon Vertex Tracker [4] and the Barrel Micromegas Tracker [5]) about the target.…”

Section: Overview Of Clas12mentioning

confidence: 99%