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Publication Information
| Title | The HPS electromagnetic calorimeter | ||||
| Abstract | The Heavy Photon Search experiment (HPS) is searching for a new gauge boson, the so-called "heavy photon". Through its kinetic mixing with the Standard Model photon, this particle could decay into an electron-positron pair. It would then be detectable as a narrow peak in the invariant mass spectrum of such pairs, or, depending on its lifetime, by a decay downstream of the production target. The HPS experiment is installed in Hall-B of Jefferson Lab. This article presents the design and performance of one of the two detectors of the experiment, the electromagnetic calorimeter, during the runs performed in 2015-2016. The calorimeter's main purpose is to provide a fast trigger and reduce the copious background from electromagnetic processes through matching with a tracking detector. The detector is a homogeneous calorimeter, made of 442 lead-tungsten (PbWO$_4$) scintillating crystals, each read-out by an avalanche photodiode coupled to a custom trans-impedance amplifier. | ||||
| Author(s) | Ilaria Balossino, Nathan Baltzell, Marco Battaglieri, Mariangela Bondi, Emma Buchanan, D. Calvo, Andrea Celentano, Gabriel Charles, Luca Colaneri, Annalisa D'Angelo, Marzio De Napoli, Raffaella De Vita, Raphael Dupre, Mathieu Ehrhart, Alessandra Filippi, Michel Garcon, Francois-Xavier Girod-Gard, Michel Guidal, Maurik Holtrop, Volodymyr Iurasov, Valery Kubarovsky, Samantha McCarty, Jeremy McCormick, Mikhail Osipenko, Rafayel Paremuzyan, Nunzio Randazzo, Emmanuel Rauly, Benjamin Raydo, Emmanuel Rindel, Alessandro Rizzo, Philippe Rosier, Valeria Sipala, Stepan Stepanyan, Holly Szumila-Vance, Larry Weinstein, Hovanes Egiyan, Nerses Gevorgyan, Kenneth Livingston, Bryan McKinnon | ||||
| Publication Date | May 2017 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Experimental Halls / Hall B | ||||
| Funding Source | Nuclear Physics (NP), DE-FG02-96ER40960 | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Nuclear Instruments & Methods in Physics Research, Section A |
| Refereed | Yes |
| Volume | 854 |
| Issue | |
| Page(s) | 89-99 |
Attachments/Datasets/DOI Link
| Document(s) |
HPSCalorimeter.pdf
(STI Document)
HPSCalorimeter.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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