The GlueX Start Counter &amp; Beam Asymmetry $\Sigma$ in Single $\pi^{0}$ Photoproduction

Pooser, E.

doi:10.25148/etd.fidc000274

Cited by 2 publications

(10 citation statements)

References 6 publications

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“…In order to resolve the 4 ns electron beam bunch structure delivered by the CEBAF to Hall-D with 6σ accuracy, the GlueX Start Counter time resolution is required to be < 350 ps. It also facilitates particle identification and can be utilized in the level 1 trigger of the GlueX experiment during high luminosity running [2] [3].…”

Section: Overviewmentioning

confidence: 99%

“…These sensors are not affected by the 2 T magnetic field produced by the GlueX superconducting solenoid magnet. The SiPMs were placed as close as possible to the upstream end of each scintillator element thereby minimizing the loss of scintillation light [2].…”

Section: Overviewmentioning

confidence: 99%

“…The details of the simulation are discussed in Ref. [2]. Only the two trapezoidal regions of a machined scintillator paddle were considered: the wide straight section and the tapered nose section.…”

Section: Simulating a Simplified Model Of The Stmentioning

confidence: 99%

“…9 [17]. The details of the UNI-FIED model parameters are discussed in detail in References [2] & [17].…”

Section: Simulating Machined Scintillator Geometrymentioning

confidence: 99%

“…De- Figure 18: ST assembly before (A) and after (B) wrapping with bundling wrap tails regarding the assembly process are discussed in Ref. [2].…”

Section: Assemblymentioning

confidence: 99%

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The GlueX Start Counter Detector

Pooser

Barbosa

Boeglin

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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The design, simulation, fabrication, calibration, and performance of the GlueX Start Counter detector is described. The Start Counter was designed to operate at integrated rates of up to 9 MHz with a timing resolution in the range of 500 to 825 ps (FWHM). The Start Counter provides excellent solid angle coverage, a high degree of segmentation for background rejection, and can be utilized in the level 1 trigger for the experiment. It consists of a cylindrical array of 30 thin scintillators with pointed ends that bend towards the beam line at the downstream end. Magnetic field insensitive silicon photomultiplier detectors were used as the light sensors.

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Section: Overviewmentioning

confidence: 99%

Section: Overviewmentioning

confidence: 99%

Section: Simulating a Simplified Model Of The Stmentioning

confidence: 99%

“…9 [17]. The details of the UNI-FIED model parameters are discussed in detail in References [2] & [17].…”

Section: Simulating Machined Scintillator Geometrymentioning

confidence: 99%

“…De- Figure 18: ST assembly before (A) and after (B) wrapping with bundling wrap tails regarding the assembly process are discussed in Ref. [2].…”

Section: Assemblymentioning

confidence: 99%

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The GlueX Start Counter Detector

Pooser

Barbosa

Boeglin

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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Construction and performance of the barrel electromagnetic calorimeter for the GlueX experiment

Beattie

Foda

Henschel

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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The barrel calorimeter is part of the new spectrometer installed in Hall D at Jefferson Lab for the GlueX experiment. The calorimeter was installed in 2013, commissioned in 2014 and has been operating routinely since early 2015. The detector configuration, associated Monte Carlo simulations, calibration and operational performance are described herein. The calorimeter records the time and energy deposited by charged and neutral particles created by a multi-GeV photon beam. It is constructed as a lead and scintillating-fiber calorimeter and read out with 3840 large-area silicon photomultiplier arrays. Particles impinge on the detector over a wide range of angles, from normal incidence at 90 degrees down to 11.5 degrees, which defines a geometry that is fairly unique among calorimeters. The response of the calorimeter has been measured during a running experiment and performs as expected for electromagnetic showers below 2.5 GeV. We characterize the performance of the BCAL using the energy resolution integrated over typical angular distributions for π 0 and η production of σ E /E=5.2%/ E(GeV)⊕ 3.6% and a timing resolution of σ = 150 ps at 1 GeV.

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The GlueX Start Counter & Beam Asymmetry $\Sigma$ in Single $\pi^{0}$ Photoproduction

Cited by 2 publications

References 6 publications

The GlueX Start Counter Detector

The GlueX Start Counter Detector

Construction and performance of the barrel electromagnetic calorimeter for the GlueX experiment

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