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Probing FCC-ee energy calibration through resonant depolarization at KARA
/ Zimmermann, Frank (CERN) ; Keintzel, Jacqueline (CERN) ; Mueller, Anke-Susanne (KIT, Karlsruhe) ; Haerer, Bastian (KIT, Karlsruhe) ; Blomley, Edmund (KIT, Karlsruhe) ; Huttel, Erhard (KIT, Karlsruhe) ; Steinmann, Johannes (KIT, Karlsruhe) ; Gethmann, Julian (KIT, Karlsruhe) ; Ruprecht, Robert (KIT, Karlsruhe) ; Pieloni, Tatiana (Ecole Polytechnique, Lausanne) et al.
The FCC-ee collider physics program requires a precise determination of the center-of-mass energy. The average energies of the two colliding beams can be measured by resonant depolarization (RDP) of polarized electron and positron bunches. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPR20
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPR20
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Resonant spin depolarization at the test facility KARA: overview of recent efforts
/ Blomley, Edmund (KIT, Karlsruhe) ; Müller, Anke-Susanne (KIT, Karlsruhe) ; Härer, B (KIT, Karlsruhe) ; Huttel, Erhard (KIT, Karlsruhe) ; Zimmermann, Frank (CERN) ; Keintzel, Jacqueline (CERN) ; Steinmann, Johannes (KIT, Karlsruhe) ; Gethmann, Julian (KIT, Karlsruhe) ; Ruprecht, Robert (KIT, Karlsruhe)
The Karlsruhe research accelerator KARA offers a setup to measure the beam energy with resonant spin depolarization. The depolarization is excited by the stripline kickers of the bunch-by-bunch feedback system and the resonant frequency is measured via change in Touschek lifetime. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPG51
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPG51
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3.
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Ultra narrowband detection scheme for dark photon / axion around 30 GHz
/ Miyazaki, A (Uppsala U.) ; Lofnes, T (Uppsala U.) ; Caspers, F (ESI, Archamps ; CERN) ; Spagnolo, P (INFN, Pisa) ; Jelonnek, J (KIT, Karlsruhe) ; Ruess, T (KIT, Karlsruhe) ; Steinmann, J L (KIT, Karlsruhe) ; Thumm, M (KIT, Karlsruhe)
We demonstrated that ultra narrowband filtering at 30 GHz dramatically enhances the signal-to-noise ratio to search for dark matter candidates which couple to millimeter waves. [...]
2022. - 1 p.
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Characterization of Charge Spreading and Gain of Encapsulated Resistive Micromegas Detectors for the Upgrade of the T2K Near Detector Time Projection Chambers
/ Ambrosi, L. (Padua U., Astron. Dept. ; INFN, Padua) ; Attié, D. (IRFU, Saclay) ; Ballester, O. (Barcelona, IFAE) ; Batkiewicz-Kwasniak, M. (Cracow, INP) ; Billoir, P. (Paris U., VI-VII) ; Blanchet, A. (Paris U., VI-VII) ; Blondel, A. (Paris U., VI-VII) ; Bolognesi, S. (IRFU, Saclay) ; Boullon, R. (IRFU, Saclay) ; Calvet, D. (IRFU, Saclay) et al.
An upgrade of the near detector of the T2K long baseline neutrino oscillation experiment is currently being conducted. This upgrade will include two new Time Projection Chambers, each equipped with 16 charge readout resistive Micromegas modules. [...]
arXiv:2303.04481.-
2023-08-06 - 40 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1056 (2023) 168534
Fulltext: PDF;
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5.
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Particle physics using reactor antineutrinos
/ CHANDLER Collaboration
Nuclear reactors are uniquely powerful, abundant, and flavor-pure sources of antineutrinos that continue to play a vital role in the US neutrino physics program. The US reactor antineutrino physics community is a diverse interest group encompassing many detection technologies and many particle physics topics, including Standard Model and short-baseline oscillations, BSM physics searches, and reactor flux and spectrum modeling. [...]
arXiv:2203.07214; FERMILAB-CONF-22-853-PPD-SCD.-
2024-06-26 - 50 p.
- Published in : J. Phys. G
Fulltext: c8e12e623ffdea56add50e6e3de8fdab - PDF; 2203.07214 - PDF; External links: Fermilab Library Server; eConf
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.080501
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6.
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Model Independent Approach of the JUNO $^8$B Solar Neutrino Program
/ JUNO Collaboration
The physics potential of detecting $^8$B solar neutrinos is exploited at the Jiangmen Underground Neutrino Observatory (JUNO), in a model independent manner by using three distinct channels of the charged-current (CC), neutral-current (NC) and elastic scattering (ES) interactions. [...]
arXiv:2210.08437.
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24 p.
Fulltext
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7.
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Analysis of test beam data taken with a prototype of TPC with resistive Micromegas for the T2K Near Detector upgrade
/ Attié, D. (IRFU, Saclay) ; Ballester, O. (Barcelona, IFAE) ; Batkiewicz-Kwasniak, M. (Cracow, INP) ; Billoir, P. (LPNHE, Paris) ; Blanchet, A. (LPNHE, Paris) ; Blondel, A. (LPNHE, Paris) ; Bolognesi, S. (IRFU, Saclay) ; Boullon, R. (IRFU, Saclay) ; Calvet, D. (IRFU, Saclay) ; Casado, M.P. (Barcelona, IFAE ; Barcelona, Autonoma U.) et al.
In this paper we describe the performance of a prototype of the High Angle Time Projection Chambers (HA-TPCs) that are being produced for the Near Detector (ND280) upgrade of the T2K experiment. The two HA-TPCs of ND280 will be instrumented with eight Encapsulated Resistive Anode Micromegas (ERAM) on each endplate, thus constituting in total 32 ERAMs. [...]
arXiv:2212.06541.-
2023-04-12 - 44 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1052 (2023) 168248
Fulltext: PDF;
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8.
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Millimeter-Wave WISP Search with Coherent Light-Shining-Through-a-Wall Toward the STAX Project
/ Miyazaki, Akira (Uppsala U.) ; Lofnes, Tor (Uppsala U.) ; Caspers, Fritz (Uppsala U. ; CERN) ; Spagnolo, Paolo (Uppsala U.) ; Jelonnek, John (Uppsala U. ; KIT, Karlsruhe) ; Ruess, Tobias (Uppsala U. ; KIT, Karlsruhe) ; Steinmann, Johannes L. (Uppsala U. ; KIT, Karlsruhe) ; Thumm, Manfred (Uppsala U. ; KIT, Karlsruhe)
A dark photon is one of the simplest extensions of the Standard Model of particle physics and can be a dark matter candidate. Dark photons kinetically mix with ordinary photons. [...]
arXiv:2212.01139.-
2024-01-01 - 15 p.
- Published in : Ann. Phys. (Leipzig) 536 (2024) 2200619
Fulltext: 2212.01139 - PDF; document - PDF;
In : 17th Workshop on Axions, WIMPs and WISPs (PATRAS 2022), Mainz, Germany, 8 - 12 Aug 2022, pp.2200619
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Systematic studies of the microbunching and weak instability at short bunch lengths
/ Brosi, M (KIT, Karlsruhe) ; Blomley, E (KIT, Karlsruhe) ; Boltz, T (KIT, Karlsruhe) ; Bründermann, E (KIT, Karlsruhe) ; Caselle, M (KIT, Karlsruhe) ; Gethmann, J (KIT, Karlsruhe) ; Kehrer, B (KIT, Karlsruhe) ; Papash, A.I. (KIT, Karlsruhe) ; Rota, L (KIT, Karlsruhe) ; Schönfeldt, P (KIT, Karlsruhe) et al.
At KARA, the Karlsruhe Research Accelerator of the Karlsruhe Institute of Technology synchrotron, the so-called short-bunch operation mode allows the reduction of the bunch length down to a few picoseconds. The microbunching instability resulting from the high degree of longitudinal compression leads to fluctuations in the emitted terahertz radiation. [...]
2020 - 5 p.
- Published in : 10.23732/CYRCP-2020-009.335
Fulltext: PDF;
In : ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators (MCBI 2019), Zermatt, Switzerland, 23 - 27 Sep 2019, pp.335 (CERN-2020-009)
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