دورية أكاديمية
Measurements of beam backgrounds in SuperKEKB Phase 2
| العنوان: | Measurements of beam backgrounds in SuperKEKB Phase 2 |
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| المؤلفون: | Liptak, Zachary J., Paladino, Antonio, Santelj, Luka, Schueler, Jeffery, Stefkova, Slavomira, Tanigawa, Hikaru, Tsuzuki, Noritsugu, Aloisio, Alberto, Ahlburg, Patrick, Bambade, Philip, Bassi, Giovanni, Barrett, Matthew, Baudot, Jerome, Browder, Thomas, Casarosa, Giulia, Cautero, Giuseppe, Cinabro, David, Claus, Gilles, Cuesta, Daniel, Di Capua, Francesco, Di Carlo, Salvatore, Flanagan, John, Frey, Ariane, Fulsom, Bryan, Funakoshi, Yoshihiro, Gabriel, Miroslav, Girodano, Raffaele, Giuressi, Dario, Goffe, Mathieu, Hara, Koji, Hartbrich, Oskar, Hedges, Michael, Heuchel, Daniel, Iida, Naoko, Ishibashi, Takuya, Jaaskelainen, Kimmo, Jehanno, Didier, de Johng, Samuel, Kraetzschmar, Thomas, La Licata, Chiara, Lanceri, Livio, Leitl, Philipp, Lewis, Peter, Marinas, Carlos, Miller, Caleb, Nakamura, Katsuro, Nakayama, Hiroyuki, Niebuhr, Carsten, Onuki, Yoshiyuki, Pang, Chengguo, Paschen, Botho, Ripp-Baudot, Isabelle, Rizzo, Giuliana, Roney, J. Michael, Schreeck, Harrison, Schwenker, Benjamin, Simon, Frank, Specht, Matthieu, Spruck, Bjoern, Soloviev, Yuri, Szelezniak, Michal, Tanaka, Shuji, Terui, Shinji, Tortone, Gennaro, Tsuboyama, Tohru, Uematsu, Yuma, Vahsen, Sven Einar, Vitale, Lorenzo, Windel, Hendrik |
| المساهمون: | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Nucl.Instrum.Meth.A ; https://hal.science/hal-03524122Test ; Nucl.Instrum.Meth.A, 2022, 1040, pp.167168. ⟨10.1016/j.nima.2022.167168⟩ |
| بيانات النشر: | HAL CCSD |
| سنة النشر: | 2022 |
| المجموعة: | HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules) |
| مصطلحات موضوعية: | Beam background, Accelerator background, Belle II, SuperKEKB, activity report, beam: background, BELLE, synchrotron radiation, vertex detector, numerical calculations, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] |
| الوصف: | International audience ; The high design luminosity of the SuperKEKB electron–positron collider will result in challenging levels of beam-induced backgrounds in the interaction region. Understanding and mitigating these backgrounds is critical to the success of the Belle II experiment. We report on the first background measurements performed after roll-in of the Belle II detector, a period known as SuperKEKB Phase 2, utilizing both the BEAST II system of dedicated background detectors and the Belle II detector itself. We also report on first revisions to the background simulation made in response to our findings. Backgrounds measured include contributions from synchrotron radiation, beam-gas, Touschek, and injection backgrounds. At the end of Phase 2, single-beam backgrounds originating from the 4 GeV positron Low Energy Ring (LER) agree reasonably well with simulation, while backgrounds from the 7 GeV electron High Energy Ring (HER) are approximately one order of magnitude higher than simulation. We extrapolate these backgrounds forward and conclude it is safe to install the Belle II vertex detector. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/2112.14537; hal-03524122; https://hal.science/hal-03524122Test; ARXIV: 2112.14537; INSPIRE: 1998019 |
| DOI: | 10.1016/j.nima.2022.167168 |
| الإتاحة: | https://doi.org/10.1016/j.nima.2022.167168Test https://hal.science/hal-03524122Test |
| رقم الانضمام: | edsbas.A92E491F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.nima.2022.167168 |
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