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52 results on '"Nikolaos Charitonidis"'

1. Design and Diagnostics of High-Precision Accelerator Neutrino Beams

Author: Nikolaos Charitonidis, Andrea Longhin, Michelangelo Pari, Elisabetta Giulia Parozzi, and Francesco Terranova
Subjects: neutrino beams, neutrino detectors, diagnostics, accelerators, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
Abstract: Neutrino oscillation physics has entered a new precision era, which poses major challenges to the level of control and diagnostics of the neutrino beams. In this paper, we review the design of high-precision beams, their current limitations, and the latest techniques envisaged to overcome such limits. We put emphasis on “monitored neutrino beams” and advanced diagnostics to determine the flux and flavor of the neutrinos produced at the source at the per-cent level. We also discuss ab-initio measurements of the neutrino energy–i.e., measurements performed without relying on the event reconstruction at the ν detector–to remove any flux induced bias in the determination of the cross sections.
Published: 2021
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2. Improved exclusion limit for light dark matter from e+e− annihilation in NA64

Author: V. M. Lysan, Vassili Kachanov, S. N. Gninenko, André Rubbia, M. Jeckel, V. A. Kramarenko, L. Kravchuk, D. Shchukin, A. N. Toropin, M. Bondi, V.A. Polyakov, P. Ulloa, Johannes Bernhard, Petr Volkov, B. Radics, D. Peshekhonov, Paolo Crivelli, Serguei Kuleshov, L. Molina, V. E. Lyubovitskij, G. D. Kekelidze, V. Volkov, V.E. Burtsev, B.I. Vasilishin, Yu. M. Andreev, V. O. Tikhomirov, G. Vasquez, Rimsky Alejandro Rojas, A. Celentano, V.D. Samoylenko, Sergey Kovalenko, David R. Cooke, R.R. Dusaev, Nikolaos Charitonidis, S. Gerassimov, H. Sieber, Debapriya Banerjee, B. Ketzer, A.G. Chumakov, M. Kirsanov, E. Depero, S. V. Donskov, Igor Konorov, A. V. Dermenev, A. E. Karneyeu, A. Gardikiotis, N. V. Krasnikov, A. Trifonov, V. A. Matveev, I. Tlisova, T. Enik, Yu. V. Mikhailov, V.N. Kolosov, D. V. Kirpichnikov, L. Marsicano, A. Feshchenko, Vladimir Frolov, and M. Hoesgen
Subjects: Physics, Particle physics, Missing energy, Annihilation, 010308 nuclear & particles physics, Dark matter, Electron, Coupling (probability), 01 natural sciences, Standard Model, Vector boson, 0103 physical sciences, 010306 general physics, Light dark matter
Abstract: The current most stringent constraints for the existence of sub-GeV dark matter coupling to Standard Model via a massive vector boson $A^\prime$ were set by the NA64 experiment for the mass region $m_{A^\prime}\lesssim 250$ MeV, by analyzing data from the interaction of $2.84\cdot10^{11}$ 100-GeV electrons with an active thick target and searching for missing-energy events. In this work, by including $A^\prime$ production via secondary positron annihilation with atomic electrons, we extend these limits in the $200$-$300$ MeV region by almost an order of magnitude, touching for the first time the dark matter relic density constrained parameter combinations. Our new results demonstrate the power of the resonant annihilation process in missing energy dark-matter searches, paving the road to future dedicated $e^+$ beam efforts.
Published: 2021

3. Constraints on New Physics in Electron g−2 from a Search for Invisible Decays of a Scalar, Pseudoscalar, Vector, and Axial Vector

Author: B. Radics, Rimsky Alejandro Rojas, S. V. Kuleshov, L. Molina Bueno, Dipanwita Banerjee, A. N. Toropin, A. Yu. Trifonov, B. Ketzer, A. V. Dermenev, Petr Volkov, M. Kirsanov, V. A. Kramarenko, Valery E. Lyubovitskij, L. Kravchuk, Viktor Matveev, V.N. Kolosov, V.D. Samoylenko, V. Yu. Volkov, Sergey Kovalenko, David R. Cooke, E. Depero, Nikolaos Charitonidis, S. Gerassimov, T. Enik, A. Gardikiotis, V.E. Burtsev, V. M. Lysan, N. V. Krasnikov, A.G. Chumakov, Yu Andreev, D. Shchukin, Vassili Kachanov, V. O. Tikhomirov, André Rubbia, Igor Konorov, B.I. Vasilishin, D. V. Kirpichnikov, Paolo Crivelli, R.R. Dusaev, D.V. Peshekhonov, A. Feshchenko, Vladimir Frolov, G. D. Kekelidze, Johannes Bernhard, V.A. Polyakov, M. Hösgen, Sergei Gninenko, H. Sieber, I. Tlisova, Yu. V. Mikhailov, S. V. Donskov, and A. E. Karneyeu
Subjects: Physics, Particle physics, Anomalous magnetic dipole moment, Scalar (mathematics), General Physics and Astronomy, Fine-structure constant, Electron, Coupling (probability), 7. Clean energy, 01 natural sciences, Pseudoscalar, 0103 physical sciences, 010306 general physics, Pseudovector, Boson
Abstract: We performed a search for a new generic X boson, which could be a scalar (S), pseudoscalar (P), vector (V), or an axial vector (A) particle produced in the 100 GeV electron scattering off nuclei, e^{-}Z→e^{-}ZX, followed by its invisible decay in the NA64 experiment at CERN. No evidence for such a process was found in the full NA64 dataset of 2.84×10^{11} electrons on target. We place new bounds on the S, P, V, A coupling strengths to electrons, and set constraints on their contributions to the electron anomalous magnetic moment a_{e}, |Δa_{X}|≲10^{-15}-10^{-13} for the X mass region 1 MeV≲m_{X}≲1 GeV. These results are an order of magnitude more sensitive compared to the current accuracy on a_{e} from the electron g-2 experiments and recent high-precision determination of the fine structure constant.
Published: 2021

4. Radiation damage of a two-dimensional carbon fiber composite (CFC)

Author: Alessandro Bertarelli, A.I. Ryazanov, Ralph Assmann, Nikolaos Charitonidis, Z. Kotsina, Z. Zhong, Nikolaos Simos, Stefano Redaelli, E. Quaranta, Sanjit Ghose, and David J. Sprouster
Subjects: Diffraction, Range (particle radiation), Materials science, Proton, Annealing (metallurgy), Physics::Instrumentation and Detectors, Materials Science (miscellaneous), Fluence, lcsh:Chemistry, lcsh:QD1-999, Radiation damage, Physics::Accelerator Physics, Irradiation, Graphite, Composite material
Abstract: Carbon fiber composites (CFC) are, among other applications, already in use as low-impedance collimating elements for intercepting TeV-level protons machines, like the CERN Large Hadron Collider. Towards a comprehensive understanding of these materials’ properties and behavior, a series of radiation damage campaigns have been undertaken in order to quantitively investigate the response of AC-150 K CFC to high proton fluences. The CFCs dimensional changes, stability, micro-structural evolution, and structural integrity below and above 5 × 1020 p/cm2 fluence threshold were studied. The irradiating particles were protons of kinetic energies in the range of 130–200 MeV. The effects of the irradiation temperature (~90–180 °C and 280–500 °C) combined with the proton fluence on the dimensional stability and the microstructural evolution of this anisotropic two-dimensional composite structure were studied using precision dilatometry and X-ray diffraction. Our results shed light on the fluence-based limitations for these composite materials. Furthermore, we compare these results with reference unirradiated graphite, and we discuss the similarities and differences in the dimensional changes and post-irradiation annealing properties.
Published: 2021

5. 200 MeV proton irradiation of the oxide-dispersion-strengthened copper alloy (GlidCop-Al15)

Author: Stefano Redaelli, Lance Lewis Snead, Nikolaos Simos, David J. Sprouster, Alessandro Bertarelli, Zhong Zhong, Nikolaos Charitonidis, E. Quaranta, Eric Dooryhee, H. Zhong, F. Camino, and Z. Kotsina
Subjects: Nuclear and High Energy Physics, Materials science, Proton, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Copper, 010305 fluids & plasmas, Nuclear Energy and Engineering, chemistry, 0103 physical sciences, Glidcop, Hardening (metallurgy), Physics::Accelerator Physics, General Materials Science, Spallation, Neutron, Irradiation, Composite material, 0210 nano-technology
Abstract: In search to identify extremely stable materials to perform the collimation function of the 7-TeV proton beam halo at the Large Hadron Collider (LHC), oxide dispersion strengthened (DS) copper alloys were explored. These internally oxidized copper alloys known as GlidCop are also leading candidates for high heat flux applications in fusion reactors and as divertor and first wall structure in ITER. These considerations have led to an extensive body of research on neutron-induced changes in the microstructure and physio-mechanical properties. This study focused primarily on the damage induced by 200 MeV protons on as wrought and cold-worked GlidCop Al15 DS copper ally selected as a candidate material of the LHC beam collimation structure to damage levels up to ∼10 displacements-per-atom (dpa) and irradiation temperatures up to ∼600 °C. For reference, low dose spallation neutron damage at sub-zero irradiation temperature was included in the study. Proton irradiation effects on dimensional stability, mechanical behavior, electrical resistivity and X-ray diffraction-based microstructural changes are presented in the paper. GlidCop Al15 exhibited excellent thermal stability and superior to pure Cu resistance to conductivity loss. Proton irradiation-induced hardening and embrittlement at distinct irradiation temperature regimes were shown to follow similar trends to what was reported under neutron exposure to even higher dpa damage. At T$_{\tt{irr}}$ ∼600 ± 20 °C the cold-worked DS copper alloy exhibited softening accompanied by elongation reduction while at T$_{\tt{irr}}$ ∼200 ± 10 °C the as-wrought experienced hardening with elongation increase. High resolution X-ray diffraction revealed that even low-dose neutron irradiation has a strong influence on the size and distribution of dispersed Al$_2$O$_3$ particles.
Published: 2019

6. Ultraenergetic Heavy-Ion Beams in the CERN Accelerator Complex for Radiation Effects Testing

Author: R. Gaillard, Maria Kastriotou, Salvatore Danzeca, Alexander Gerbershagen, Pablo Fernandez Martinez, Hugh Evans, Markus Brugger, Simone Gilardoni, Veronique Ferlet-Cavrois, Francesco Cerutti, Maris Tali, Johannes Bernhard, Ruben Garcia Alia, Cesar Boatella Polo, Gianluca Furano, Lau Gatignon, Nourdine Kerboub, Nikolaos Charitonidis, Vanessa Wyrwoll, and Matteo Cecchetto
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Large Hadron Collider, 010308 nuclear & particles physics, Cyclotron, Linear energy transfer, Particle accelerator, Accelerators and Storage Rings, 01 natural sciences, 7. Clean energy, law.invention, Nuclear physics, Nuclear Energy and Engineering, law, Ionization, 0103 physical sciences, Cyclotron radiation, Electrical and Electronic Engineering, Radiation hardening
Abstract: Traditional heavy-ion testing for single-event effects is carried out in cyclotron facilities with energies around 10 MeV/n. Despite their capability of providing a broad range of linear energy transfer (LET) values, the main limitations are related to the need of testing in a vacuum and with the sensitive region of the components accessible to the low range ions. In this paper, we explore the use of ultrahigh energy (UHE) (5-150 GeV/n) ions in the CERN accelerator complex for radiation effects on electronics testing. At these energies, we show, both through simulations and experimental data, the significant impact of the ion energy on the ionization track structure and associated volume-restricted LET value, highlighting the possible limitations for radiation hardness assurance for high-energy accelerator applications. In addition, we show that from a nuclear interaction perspective, UHE ions behave similar to protons independently of their significantly larger mass.
Published: 2019

7. Targetry Challenges & HiRadMat

Author: Aymeric Bouvard, Nikolaos Charitonidis, Yacine Kadi, and Fiona Harden
Subjects: High energy, Large Hadron Collider, Computer science, Nuclear engineering, Collimator, Radiation, Accelerators and Storage Rings, law.invention, Upgrade, law, Physics::Accelerator Physics, Spallation, Strain gauge, Beam (structure)
Abstract: HiRadMat is a unique user facility providing a controlled test environment for accelerator experiments investigating the effects of high energy, high intensity proton beam. HiRadMat uses a 440 GeV/c proton beam fastly-extracted from the CERN SPS and can currently provide a maximum pulse intensity of 3.5 × 10^13 protons. Initially designed to explore the damage thresholds of accelerator components which experienced thermal shocks induced by high-brightness beams, HiRadMat has continued to advance into new areas of research. This contribution will focus on the significant role that HiRadMat plays in Targetry R&D; where previous experiments will be discussed and future ideas presented. Due to the extensive CERN support available experiments at HiRadMat have evolved from new target concepts (like powder target and prototype material sample experiments) to validation studies for full-scale prototypes, including absorber jaws for LHC and HL-LHC, collimator’s and spallation targets, and more recently cryogenic and pre-irradiated sample experiments. Similarly, diagnostics (e.g., strain gauges, LDVs, temperature sensors) as well as visual inspection and beam monitoring devices (e.g., radiation hard cameras, lighting systems, microphones) have continued to develop providing users with in-situ beam-time statistics and beam profile information resulting in more accurate measurements of the prompt-beam effects. The future upgrade of HiRadMat will be discussed with details on multiple stages of development from improved functionality of the laboratory to optimisation of the experimental area regarding beam potential.
Published: 2021

8. Design and diagnostics of high-precision accelerator neutrino beams

Author: Michelangelo Pari, Nikolaos Charitonidis, E. Parozzi, F. Terranova, A. Longhin, Charitonidis, N, Longhin, A, Pari, M, Parozzi, E, and Terranova, F
Subjects: Accelerator Physics (physics.acc-ph), Particle physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, lcsh:Technology, 01 natural sciences, High Energy Physics - Experiment, lcsh:Chemistry, High Energy Physics - Experiment (hep-ex), neutrino, High Energy Physics - Phenomenology (hep-ph), accelerators, 0103 physical sciences, diagnostics, General Materials Science, 010306 general physics, Neutrino oscillation, lcsh:QH301-705.5, Instrumentation, Event reconstruction, Fluid Flow and Transfer Processes, Physics, lcsh:T, 010308 nuclear & particles physics, Process Chemistry and Technology, High Energy Physics::Phenomenology, General Engineering, Accelerators and Storage Rings, lcsh:QC1-999, Computer Science Applications, High Energy Physics - Phenomenology, lcsh:Biology (General), lcsh:QD1-999, Neutrino detector, lcsh:TA1-2040, neutrino beams, Computer Science::Programming Languages, Physics - Accelerator Physics, High Energy Physics::Experiment, Neutrino, lcsh:Engineering (General). Civil engineering (General), Particle Physics - Experiment, lcsh:Physics, neutrino detectors
Abstract: Neutrino oscillation physics has entered a new precision era, which poses major challenges to the level of control and diagnostics of the neutrino beams. In this paper, we review the design of high-precision beams, their current limitations, and the latest techniques envisaged to overcome such limits. We put emphasis on "monitored neutrino beams" and advanced diagnostics to determine the flux and flavor of the neutrinos produced at the source at the per-cent level. We also discuss ab-initio measurements of the neutrino energy -- i.e. measurements performed without relying on the event reconstruction at the neutrino detector -- to remove any flux-induced bias in the determination of the cross sections., 43 pages, 17 figures, to appear in Applied Science
Published: 2021

9. Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles

Author: S. Kormannshaus, K. Kershaw, N. Leonardo, M. Chernyavskiy, Oleg Ruchayskiy, Ciro Visone, I. Korol, Alexey Boyarsky, J.-M. Lévy, E. Elikkaya, E. Kurbatov, Davide Tommasini, D. Grenier, V. Poliakov, M. Manfredi, T. M. Roganova, E. Koukovini Platia, Sergey E. Ulin, Serge Smirnov, V.D. Samoylenko, Victor Golovtsov, A. Golovatiuk, S. Vilchinski, P. Ninin, Andrea Miano, F. L. Fabbri, A. Quercia, E. Solodko, W. Schmidt-Parzefall, Naotaka Naganawa, Mario Campanelli, Paolo Ciambrone, N. Konovalova, Salvatore Buontempo, Andrey Ustyuzhanin, Yu. Guz, I. Korol’ko, Mikhail V. Gorshenkov, L. Di Giulio, G. Soares, Vladimir Samsonov, M. Torii, Alexey A. Petrov, H. Shibuya, V. M. Grachev, V. E. Lyubovitskij, P. Wertelaers, Philippe Mermod, G. Felici, Nicola D'Ambrosio, A. Iuliano, Annarita Buonaura, Gianluigi Arduini, P. Dergachev, A.B. Rodrigues Cavalcante, Akira Nishio, S. Simone, Christopher Betancourt, J. J. Back, Claudio O. Dib, Pavel Shatalov, R. Froeschl, A. Bay, A. Datwyler, A. Rakai, Petr Andreevich Gorbounov, A. Saputi, B. Opitz, Giuseppe D'Appollonio, K.Y. Lee, A. Kono, Mike Lamont, J. Borburgh, Alexander Malinin, Vadim Kostyukhin, P. Santos Diaz, E. V. Atkin, Y. G. Kim, Konstantinos Petridis, R. Voronkov, A. L. Grandchamp, Liliana Congedo, N. Azorskiy, Alexander E. Shustov, A. Mefodev, A. Golutvin, Oleg Bezshyyko, B. Hosseini, Andrea Prota, J. Boehm, Giuseppe Iaselli, P. Pacholek, Genady Gavrilov, A. Kolesnikov, P. Kurbatov, John Osborne, Victor Maleev, R. de Asmundis, Nicolò Tosi, L. Golinka-Bezshyyko, P. Fonte, M. Ehlert, R. Jacobsson, V. Kurochka, A. Shakin, A.U. Yilmazer, F. Fedotovs, K. Filippov, D. Breton, D. Pereyma, D. A. Podgrudkov, B. Obinyakov, Mikhail Hushchyn, J. S. Schliwinski, L. Stoel, Volker Büscher, Alexey Volkov, Raffaele Albanese, S. Shirobokov, Shigeki Aoki, J.-L. Grenard, J. Bauche, Patrick Owen, D. Yilmaz, Z. M. Uteshev, V. Bayliss, E. van Herwijnen, A. Zelenov, M. Prokudin, Rosa Simoniello, S. Nasybulin, P. Teterin, D. Karpenkov, S. Ricciardi, G. L. Petkov, A. Korzenev, Y. Muttoni, F. Redi, O. Durhan, G. Bencivenni, V. P. Loschiavo, Ekaterina Kuznetsova, Oleg Fedin, K. S. Lee, A. Crupano, Heinz Vincke, Oksana Shadura, Elena Graverini, V. Drohan, Tiziano Rovelli, N. Owtscharenko, V. Cicero, S. van Waasen, A. M. Guler, Valery V. Dmitrenko, A. Alexandrov, Patrick Robbe, A. Hollnagel, Nobuko Kitagawa, J. Zimmerman, Caren Hagner, K.-Y. Choi, Daniel Treille, J. Gall, Satoru Takahashi, G. Vankova-Kirilova, A. Khotyantsev, L. Gatignon, Yosuke Suzuki, S. Marsh, L. Lopes, J. De Carvalho Saraiva, Gianfranca De Rosa, M. D. Skorokhvatov, Viktor Rodin, J. Prieto Prieto, Michael Wurm, A. Dolmatov, Sandro Cadeddu, Oleg Mineev, Inar Timiryasov, Giuliana Galati, G. Haefeli, G. M. Dallavalle, E. Khalikov, Karel Cornelis, Y. Berdnikov, Samuel Silverstein, Stefano Sgobba, A. Akmete, Helmut Vincke, Yuki Manabe, M. Casolino, M. M. Khabibullin, Lesya Shchutska, Alessandro Pastore, Matthew Fraser, F. Vannucci, Alexander Mclean Marshall, F. Bardou, W. Bonivento, J. Maalmi, D. Sukhonos, Arnaud Dubreuil, A. Sanz Ull, M. Battistin, Fedor Ratnikov, Iaroslava Bezshyiko, A. S. Chepurnov, M. de Magistris, Brennan Goddard, David Milstead, Alessandro Paoloni, Iryna Boiarska, B. D. Park, N. Okateva, Hans Dijkstra, Alessandro Montanari, J. Y. Sohn, Nicola Serra, E. S. Savchenko, E. Ursov, M. Bogomilov, Heiko Lacker, Natalia Polukhina, C. Franco, J.-K. Woo, Toshiyuki Nakano, A. Bagulya, D. Domenici, M. Nakamura, G. De Lellis, Yu. Zaytsev, G.V. Khaustov, J. L. Tastet, S. Movchan, Verena Kain, A. A. Rademakers, I. Kadenko, Maria Elena Stramaglia, A. Blanco, Vladimir Shevchenko, A. M. Anokhina, T. Enik, M. Bertani, F. Sanchez Galan, L. G. Dedenko, N. Di Marco, B. Kaiser, M. Jonker, Kunihiro Morishima, Lev Uvarov, C. S. Yoon, S. Bieschke, Markus Cristinziani, R. A. Fini, M. Patel, G. Khoriauli, I. Krasilnikova, Hiroki Rokujo, Kyrylo Bondarenko, Maria Cristina Montesi, S. V. Donskov, Konstantin F. Vlasik, Mikhail Shaposhnikov, P. Chau, O. Williams, D. Kolev, S. Ogawa, C. Kamiscioglu, Alexander Baranov, Yu. Mikhaylov, Dmitry Golubkov, A. K. Managadze, T. Fukuda, H. Hakobyan, M. Rinaldesi, T. Ruf, S. Than Naing, L. A. Dougherty, E. Lopez Sola, Richard Brenner, G. Lanfranchi, Nikolaos Charitonidis, F. Baaltasar Dos Santos, A. Calcaterra, D. Bick, N. I. Starkov, A.V. Etenko, Gareth J. Barker, V. Gentile, D. De Simone, Osamu Sato, Adele Lauria, Martina Ferrillo, Maksym Ovchynnikov, Marco Calviani, J.-W. Ko, S. Mikado, Raffaele Fresa, A. De Roeck, C. Hessler, A. Berdnikov, D. Joković, M. De Serio, A. Sokolenko, T. Rawlings, N. Gruzinskii, R. Tsenov, Oliver Lantwin, Masahiro Komatsu, A. Chumakov, Volodymyr Rodin, V. Grichine, V.N. Kolosov, Anne-Marie Magnan, J. Chauveau, T. Shchedrina, V. Venturi, V. Tioukov, K. Kodama, Stefania Xella, I. Vidulin, Antonio Perillo-Marcone, Rainer Wanke, Dmitry Gorbunov, Yu.A. Kudenko, M. Ferro-Luzzi, Victor Kim, Volodymyr M. Gorkavenko, I. W. Harris, S. Gorbunov, Sergey Kovalenko, C. Ahdida, A. Di Crescenzo, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), SHiP, Ahdida, C., Akmete, A., Albanese, R., Alexandrov, A., Anokhina, A., Aoki, S., Arduini, G., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Santos, F. Baaltasar Do, Baranov, A., Bardou, F., Barker, G. J., Battistin, M., Bauche, J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Boiarska, I., Bondarenko, K., Bonivento, W. M., Borburgh, J., Boyarsky, A., Brenner, R., Breton, D., Büscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Calviani, M., Campanelli, M., Casolino, M., Charitonidis, N., Chau, P., Chauveau, J., Chepurnov, A., Chernyavskiy, M., Choi, K. -Y., Chumakov, A., Ciambrone, P., Cicero, V., Congedo, L., Cornelis, K., Cristinziani, M., Crupano, A., Dallavalle, G. M., Datwyler, A., D’Ambrosio, N., D’Appollonio, G., de Asmundis, R., De Carvalho Saraiva, J., De Lellis, G., de Magistris, M., De Roeck, A., De Serio, M., De Simone, D., Dedenko, L., Dergachev, P., Di Crescenzo, A., Giulio, L. Di, Marco, N. Di, Dib, C., Dijkstra, H., Dmitrenko, V., Dougherty, L. A., Dolmatov, A., Domenici, D., Donskov, S., Drohan, V., Dubreuil, A., Durhan, O., Ehlert, M., Elikkaya, E., Enik, T., Etenko, A., Fabbri, F., Fedin, O., Fedotovs, F., Felici, G., Ferrillo, M., Ferro-Luzzi, M., Filippov, K., Fini, R. A., Fonte, P., Franco, C., Fraser, M., Fresa, R., Froeschl, R., Fukuda, T., Galati, G., Gall, J., Gatignon, L., Gavrilov, G., Gentile, V., Goddard, B., Golinka-Bezshyyko, L., Golovatiuk, A., Golovtsov, V., Golubkov, D., Golutvin, A., Gorbounov, P., Gorbunov, D., Gorbunov, S., Gorkavenko, V., Gorshenkov, M., Grachev, V., Grandchamp, A. L., Graverini, E., Grenard, J. -L., Grenier, D., Grichine, V., Gruzinskii, N., Guler, A. M., Guz, Yu., Haefeli, G. J., Hagner, C., Hakobyan, H., Harris, I. W., Herwijnen, E. van, Hessler, C., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, A., Jacobsson, R., Joković, D., Jonker, M., Kadenko, I., Kain, V., Kaiser, B., Kamiscioglu, C., Karpenkov, D., Kershaw, K., Khabibullin, M., Khalikov, E., Khaustov, G., Khoriauli, G., Khotyantsev, A., Kim, Y. G., Kim, V., Kitagawa, N., Ko, J. -W., Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Kono, A., Konovalova, N., Kormannshaus, S., Korol, I., Korol’Ko, I., Korzenev, A., Kostyukhin, V., Platia, E. Koukovini, Kovalenko, S., Krasilnikova, I., Kudenko, Y., Kurbatov, E., Kurbatov, P., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lamont, M., Lanfranchi, G., Lantwin, O., Lauria, A., Lee, K. S., Lee, K. Y., Leonardo, N., Lévy, J. -M., Loschiavo, V. P., Lopes, L., Sola, E. Lopez, Lyubovitskij, V., Maalmi, J., Magnan, A. -M., Maleev, V., Malinin, A., Manabe, Y., Managadze, A. K., Manfredi, M., Marsh, S., Marshall, A. M., Mefodev, A., Mermod, P., Miano, A., Mikado, S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Montanari, A., Montesi, M. C., Morishima, K., Movchan, S., Muttoni, Y., Naganawa, N., Nakamura, M., Nakano, T., Nasybulin, S., Ninin, P., Nishio, A., Obinyakov, B., Ogawa, S., Okateva, N., Opitz, B., Osborne, J., Ovchynnikov, M., Owtscharenko, N., Owen, P. H., Pacholek, P., Paoloni, A., Park, B. D., Pastore, A., Patel, M., Pereyma, D., Perillo-Marcone, A., Petkov, G. L., Petridis, K., Petrov, A., Podgrudkov, D., Poliakov, V., Polukhina, N., Prieto, J. Prieto, Prokudin, M., Prota, A., Quercia, A., Rademakers, A., Rakai, A., Ratnikov, F., Rawlings, T., Redi, F., Ricciardi, S., Rinaldesi, M., Rodin, Volodymyr, Rodin, Viktor, Robbe, P., Cavalcante, A. B. Rodrigue, Roganova, T., Rokujo, H., Rosa, G., Rovelli, T., Ruchayskiy, O., Ruf, T., Samoylenko, V., Samsonov, V., Galan, F. Sanchez, Diaz, P. Santo, Ull, A. Sanz, Saputi, A., Sato, O., Savchenko, E. S., Schliwinski, J. S., Schmidt-Parzefall, W., Serra, N., Sgobba, S., Shadura, O., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shirobokov, S., Shustov, A., Silverstein, S. B., Simone, S., Simoniello, R., Skorokhvatov, M., Smirnov, S., Soares, G., Sohn, J. Y., Sokolenko, A., Solodko, E., Starkov, N., Stoel, L., Stramaglia, M. E., Sukhonos, D., Suzuki, Y., Takahashi, S., Tastet, J. L., Teterin, P., Naing, S. Than, Timiryasov, I., Tioukov, V., Tommasini, D., Torii, M., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ursov, E., Ustyuzhanin, A., Uteshev, Z., Uvarov, L., Vankova-Kirilova, G., Vannucci, F., Venturi, V., Vidulin, I., Vilchinski, S., Vincke, Heinz, Vincke, Helmut, Visone, C., Vlasik, K., Volkov, A., Voronkov, R., Waasen, S. van, Wanke, R., Wertelaers, P., Williams, O., Woo, J. -K., Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., Zaytsev, Yu., Zelenov, A., Zimmerman, J., Ahdida C., Akmete A., Albanese R., Alexandrov A., Anokhina A., Aoki S., Arduini G., Atkin E., Azorskiy N., Back J.J., Bagulya A., Santos F.B.D., Baranov A., Bardou F., Barker G.J., Battistin M., Bauche J., Bay A., Bayliss V., Bencivenni G., Berdnikov A.Y., Berdnikov Y.A., Bertani M., Betancourt C., Bezshyiko I., Bezshyyko O., Bick D., Bieschke S., Blanco A., Boehm J., Bogomilov M., Boiarska I., Bondarenko K., Bonivento W.M., Borburgh J., Boyarsky A., Brenner R., Breton D., Buscher V., Buonaura A., Buontempo S., Cadeddu S., Calcaterra A., Calviani M., Campanelli M., Casolino M., Charitonidis N., Chau P., Chauveau J., Chepurnov A., Chernyavskiy M., Choi K.-Y., Chumakov A., Ciambrone P., Cicero V., Congedo L., Cornelis K., Cristinziani M., Crupano A., Dallavalle G.M., Datwyler A., D'Ambrosio N., D'Appollonio G., de Asmundis R., De Carvalho Saraiva J., De Lellis G., de Magistris M., De Roeck A., De Serio M., De Simone D., Dedenko L., Dergachev P., Crescenzo A.D., Giulio L.D., Marco N.D., Dib C., Dijkstra H., Dmitrenko V., Dougherty L.A., Dolmatov A., Domenici D., Donskov S., Drohan V., Dubreuil A., Durhan O., Ehlert M., Elikkaya E., Enik T., Etenko A., Fabbri F., Fedin O., Fedotovs F., Felici G., Ferrillo M., Ferro-Luzzi M., Filippov K., Fini R.A., Fonte P., Franco C., Fraser M., Fresa R., Froeschl R., Fukuda T., Galati G., Gall J., Gatignon L., Gavrilov G., Gentile V., Goddard B., Golinka-Bezshyyko L., Golovatiuk A., Golovtsov V., Golubkov D., Golutvin A., Gorbounov P., Gorbunov D., Gorbunov S., Gorkavenko V., Gorshenkov M., Grachev V., Grandchamp A.L., Graverini E., Grenard J.-L., Grenier D., Grichine V., Gruzinskii N., Guler A.M., Guz Y., Haefeli G.J., Hagner C., Hakobyan H., Harris I.W., van Herwijnen E., Hessler C., Hollnagel A., Hosseini B., Hushchyn M., Iaselli G., Iuliano A., Jacobsson R., Jokovic D., Jonker M., Kadenko I., Kain V., Kaiser B., Kamiscioglu C., Karpenkov D., Kershaw K., Khabibullin M., Khalikov E., Khaustov G., Khoriauli G., Khotyantsev A., Kim Y.G., Kim V., Kitagawa N., Ko J.-W., Kodama K., Kolesnikov A., Kolev D.I., Kolosov V., Komatsu M., Kono A., Konovalova N., Kormannshaus S., Korol I., Korol'ko I., Korzenev A., Kostyukhin V., Platia E.K., Kovalenko S., Krasilnikova I., Kudenko Y., Kurbatov E., Kurbatov P., Kurochka V., Kuznetsova E., Lacker H.M., Lamont M., Lanfranchi G., Lantwin O., Lauria A., Lee K.S., Lee K.Y., Leonardo N., Levy J.-M., Loschiavo V.P., Lopes L., Sola E.L., Lyubovitskij V., Maalmi J., Magnan A.-M., Maleev V., Malinin A., Manabe Y., Managadze A.K., Manfredi M., Marsh S., Marshall A.M., Mefodev A., Mermod P., Miano A., Mikado S., Mikhaylov Y., Milstead D.A., Mineev O., Montanari A., Montesi M.C., Morishima K., Movchan S., Muttoni Y., Naganawa N., Nakamura M., Nakano T., Nasybulin S., Ninin P., Nishio A., Obinyakov B., Ogawa S., Okateva N., Opitz B., Osborne J., Ovchynnikov M., Owtscharenko N., Owen P.H., Pacholek P., Paoloni A., Park B.D., Pastore A., Patel M., Pereyma D., Perillo-Marcone A., Petkov G.L., Petridis K., Petrov A., Podgrudkov D., Poliakov V., Polukhina N., Prieto J.P., Prokudin M., Prota A., Quercia A., Rademakers A., Rakai A., Ratnikov F., Rawlings T., Redi F., Ricciardi S., Rinaldesi M., Rodin V., Robbe P., Cavalcante A.B.R., Roganova T., Rokujo H., Rosa G., Rovelli T., Ruchayskiy O., Ruf T., Samoylenko V., Samsonov V., Galan F.S., Diaz P.S., Ull A.S., Saputi A., Sato O., Savchenko E.S., Schliwinski J.S., Schmidt-Parzefall W., Serra N., Sgobba S., Shadura O., Shakin A., Shaposhnikov M., Shatalov P., Shchedrina T., Shchutska L., Shevchenko V., Shibuya H., Shirobokov S., Shustov A., Silverstein S.B., Simone S., Simoniello R., Skorokhvatov M., Smirnov S., Soares G., Sohn J.Y., Sokolenko A., Solodko E., Starkov N., Stoel L., Stramaglia M.E., Sukhonos D., Suzuki Y., Takahashi S., Tastet J.L., Teterin P., Naing S.T., Timiryasov I., Tioukov V., Tommasini D., Torii M., Tosi N., Treille D., Tsenov R., Ulin S., Ursov E., Ustyuzhanin A., Uteshev Z., Uvarov L., Vankova-Kirilova G., Vannucci F., Venturi V., Vidulin I., Vilchinski S., Vincke H., Visone C., Vlasik K., Volkov A., Voronkov R., Waasen S., Wanke R., Wertelaers P., Williams O., Woo J.-K., Wurm M., Xella S., Yilmaz D., Yilmazer A.U., Yoon C.S., Zaytsev Y., Zelenov A., and Zimmerman J.
Subjects: Photon, Physics and Astronomy (miscellaneous), parton distributions, lepton, PROTON-PROTON COLLISIONS, QC770-798, Astrophysics, 01 natural sciences, Dark photon, High Energy Physics - Experiment, LIMITS, High Energy Physics - Experiment (hep-ex), photon: mass, pi(0), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], LEPTON, Physics, search, charged particle, Charged particle, vector particle: massive, QB460-466, photon: mixing, Production (computer science), phi-meson decays, numerical calculations: Monte Carlo, upper limit, Particle Physics - Experiment, Quark, Particle physics, photon: decay modes, PHI-MESON DECAYS, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Accelerator Physics and Instrumentation, quark, E(+)E(-), VECTOR GAUGE BOSON, SEARCH, Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, e(+)e(-), ddc:530, Sensitivity (control systems), 010306 general physics, Engineering (miscellaneous), vector gauge boson, photon: hidden sector, hep-ex, 010308 nuclear & particles physics, PI(0), Acceleratorfysik och instrumentering, Fermion, sensitivity, WEIZSACKER-WILLIAMS METHOD, PARTON DISTRIBUTIONS, SHIP - dark photons - BSM, proton-proton collisions, High Energy Physics::Experiment, limits, Lepton, weizsacker-williams method, experimental results
Abstract: Dark photons are hypothetical massive vector particles that could mix with ordinary photons. The simplest theoretical model is fully characterised by only two parameters: the mass of the dark photon m$$_{\gamma ^{\mathrm {D}}}$$ γ D and its mixing parameter with the photon, $$\varepsilon $$ ε . The sensitivity of the SHiP detector is reviewed for dark photons in the mass range between 0.002 and 10 GeV. Different production mechanisms are simulated, with the dark photons decaying to pairs of visible fermions, including both leptons and quarks. Exclusion contours are presented and compared with those of past experiments. The SHiP detector is expected to have a unique sensitivity for m$$_{\gamma ^{\mathrm {D}}}$$ γ D ranging between 0.8 and 3.3$$^{+0.2}_{-0.5}$$ - 0.5 + 0.2 GeV, and $$\varepsilon ^2$$ ε 2 ranging between $$10^{-11}$$ 10 - 11 and $$10^{-17}$$ 10 - 17 .
Published: 2021

10. Investigation on steering of ultrarelativistic $e^{\pm}$ beam through an axially oriented bent crystal

Author: Laura Bandiera, A. Sytov, Vincenzo Guidi, C. Brizzolari, Riccardo Camattari, I. V. Kyryllin, N. F. Shul’ga, D. De Salvador, M. Prest, Nikolaos Charitonidis, E. Vallazza, Andrea Mazzolari, M. Soldani, V. Mascagna, and M. Romagnoni
Subjects: Accelerator Physics (physics.acc-ph), Physics and Astronomy (miscellaneous), Bent molecular geometry, FOS: Physical sciences, lcsh:Astrophysics, Bending, Electron, 01 natural sciences, NO, Crystal, 0103 physical sciences, lcsh:QB460-466, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010306 general physics, Engineering (miscellaneous), physics.acc-ph, Physics, 010308 nuclear & particles physics, Plane (geometry), Accelerators and Storage Rings, Charged particle, Deflection (physics), lcsh:QC770-798, Physics::Accelerator Physics, Physics - Accelerator Physics, Atomic physics, Axial symmetry
Abstract: An investigation on stochastic deflection of high-energy charged particles in a bent crystal was carried out. In particular, we investigated the deflection efficiency under axial confinement of both positively and negatively charged particles as a function of the crystal orientation, the choice of the bending plane, and of the charge sign. Analytic estimations and numerical simulations were compared with dedicated experiments at the H4 secondary beam line of SPS North Area, with 120 GeV/c electrons and positrons. In the work presented in this article, the optimal orientations of the plane of bending of the crystal, which allow deflecting the largest number of charged particles using a bent crystal in axial orientation, were found. An investigation on stochastic deflection of high-energy charged particles in a bent crystal was carried out. In particular, we investigated the deflection efficiency under axial confinement of both positively and negatively charged particles as a function of the crystal orientation, the choice of the bending plane, and of the charge sign. Analytic estimations and numerical simulations were compared with dedicated experiments at the H4 secondary beam line of SPS North Area, with 120 GeV/$c$ electrons and positrons. In the work presented in this article, the optimal orientations of the plane of bending of the crystal, which allow deflecting the largest number of charged particles using a bent crystal in axial orientation, were found.
Published: 2020

11. Study of scintillation light collection, production and propagation in a 4 tonne dual-phase LArTPC

Author: P. Lutz, K. Sakashita, F. Dulucq, L. Periale, F. Noto, Kai Loo, N. Lira, Wladyslaw Henryk Trzaska, J. Marteau, Y. Karyotakis, D. Mladenov, G. Martin-Chassard, G. Lehmann-Miotto, Marzio Nessi, D. Lorca, J. Bremer, Enrique Calvo, M. Kurokawa, C. Regenfus, Antonio Ereditato, N. Geffroy, F. Duval, K. Fusshoeller, Ionel Lazanu, G. Brunetti, K. Negishi, C. Drancourt, A. Scarpelli, V. Toboaru, A. Tonazzo, F. Pietropaolo, T. Hasegawa, A. Gendotti, F. Vannucci, L. Zambelli, K. Nakayoshi, A. Gallego-Ros, F. Doizon, V. Aushev, T. Patzak, C. Cantini, J. Asaadi, E. Pennacchio, André Rubbia, J. Soto-Oton, I. Gil-Botella, L. Balleyguier, Masatoshi Maki, Denis Stanca, S. Bordoni, T. Viant, S. Horikawa, A. Chiriacescuf, A. Falcone, K. Sendai, S. Murphy, B. Aimard, A. Delbart, D. Caiulo, N. Bourgeois, S. Vilalte, B.M. Cautisanu, G. Maire, D. Stefan, L. Brunetti, I. Kreslo, S. Wu, Marc Weber, K. Cankocak, Mihai Niculescu-Oglinzanu, D. Redondo, J. Sinclair, Filippo Resnati, F. Sergiampietri, M. Parvu, D. Kryn, I. De Bonis, Animesh Chatterjee, B. Radics, B. Bourguille, Paolo Crivelli, C. de la Taille, M. Leyton, S. Bolognesi, P. Gorodetzky, Mario Campanelli, M. Calin, M. Chalifour, L. Aizawa, D. Pugnere, Alexandru Gherghel-Lascu, C. Alt, D. Duchesneau, Masahiro Ikeno, S. Shahsavarani, H. Konari, P. Cotte, J.V. Dawson, Federico Sanchez, Diana Navas-Nicolas, S. Jiménez, Y. Penichot, M. Zito, C. Girerd, L. Urda, A. Remoto, B. Carlus, C. M. Schloesser, Tomohisa Uchida, G. Brown, W. Tromeur, R. Sulej, E. Bechetoille, G. Misitano, Romul Margineanu, Masashi Tanaka, S. Conforti, C. Santos, Sampsa Vihonen, A. Verdugo, A. Saftoiu, H. Pessard, H. Mathez, P. Chiu, T.S. Mosu, R. Hanni, A.M. Blebea-Apostu, V. Galymov, Y. Onishchuk, E. Mazzucato, G. Vasseur, S. Narita, Y. Kuromori, Jukka Maalampi, Martin Auger, S. Di Luise, L. Molina Bueno, D. Autiero, A. Holin, S. Kasai, Nikolaos Charitonidis, M. Karolak, M. Shoji, A. Noury, Alexandru Jipa, G. Balik, P. Kunze, W. Mu, D. Belver, Jong-Sung Yu, C. Palomares, A. Chappuis, Katsuyu Kasami, C. Lastoria, M.C. Gomoiu, Thorsten Lux, Laura Manenti, E. Hamada, S. Emery, Alexandru Balaceanu, C. Cuesta, Oana Ristea, T. Kishishita, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Aimard, B, Aizawa, L, Alt, C, Asaadi, J, Auger, M, Aushev, V, Autiero, D, Balaceanu, A, Balik, G, Balleyguier, L, Bechetoille, E, Belver, D, Blebea-Apostu, A, Bolognesi, S, Bordoni, S, Bourgeois, N, Bourguille, B, Bremer, J, Brown, G, Brunetti, L, Brunetti, G, Caiulo, D, Calin, M, Calvo, E, Campanelli, M, Cankocak, K, Cantini, C, Carlus, B, Cautisanu, B, Chalifour, M, Chappuis, A, Charitonidis, N, Chatterjee, A, Chiriacescuf, A, Chiu, P, Conforti, S, Cotte, P, Crivelli, P, Cuesta, C, Dawson, J, De Bonis, I, De La Taille, C, Delbart, A, Di Luise, S, Doizon, F, Drancourt, C, Duchesneau, D, Dulucq, F, Duval, F, Emery, S, Ereditato, A, Falcone, A, Fusshoeller, K, Gallego-Ros, A, Galymov, V, Geffroy, N, Gendotti, A, Gherghel-Lascu, A, Gil-Botella, I, Girerd, C, Gomoiu, M, Gorodetzky, P, Hamada, E, Hanni, R, Hasegawa, T, Holin, A, Horikawa, S, Ikeno, M, Jiménez, S, Jipa, A, Karolak, M, Karyotakis, Y, Kasai, S, Kasami, K, Kishishita, T, Konari, H, Kreslo, I, Kryn, D, Kunzé, P, Kurokawa, M, Kuromori, Y, Lastoria, C, Lazanu, I, Lehmann-Miotto, G, Leyton, M, Lira, N, Loo, K, Lorca, D, Lutz, P, Lux, T, Maalampi, J, Maire, G, Maki, M, Manenti, L, Margineanu, R, Marteau, J, Martin-Chassard, G, Mathez, H, Mazzucato, E, Misitano, G, Mladenov, D, Molina Bueno, L, Mosu, T, Mu, W, Murphy, S, Nakayoshi, K, Narita, S, Navas-Nicolás, D, Negishi, K, Nessi, M, Niculescu-Oglinzanu, M, Noto, F, Noury, A, Onishchuk, Y, Palomares, C, Parvu, M, Patzak, T, Penichot, Y, Pennacchio, E, Periale, L, Pessard, H, Pietropaolo, F, Pugnere, D, Radics, B, Redondo, D, Regenfus, C, Remoto, A, Resnati, F, Ristea, O, Rubbia, A, Saftoiu, A, Sakashita, K, Sanchez, F, Santos, C, Scarpelli, A, Schloesser, C, Sendai, K, Sergiampietri, F, Shahsavarani, S, Shoji, M, Sinclair, J, Soto-Oton, J, Stanca, D, Stefan, D, Sulej, R, Tanaka, M, Toboaru, V, Tonazzo, A, Tromeur, W, Trzaska, W, Uchida, T, Urda, L, Vannucci, F, Vasseur, G, Verdugo, A, Viant, T, Vihonen, S, Vilalte, S, Weber, M, Wu, S, Yu, J, Zambelli, L, and Zito, M
Subjects: photon: propagation, Photomultiplier, CERN Lab, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, tutkimuslaitteet, Performance of High Energy Physics Detector, Phase (waves), FOS: Physical sciences, Cosmic ray, Noble liquid detectors (scintillation, ionization, double-phase), Scintillator, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Optics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, Instrumentation, physics.ins-det, Mathematical Physics, scintillation counter, Physics, Scintillation, Time projection chamber, photomultiplier, 010308 nuclear & particles physics, business.industry, hep-ex, Detector, Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators), Instrumentation and Detectors (physics.ins-det), time projection chamber: liquid argon, Performance of High Energy Physics Detectors, Photon detectors for UV, visible and IR photons (vacuum) (photomulti-pliers, HPDs, others), Scintillators, scintillation and light emission processes (solid, gas and liquidscintillators), Photon detectors for UV, visible and IR photons (vacuum) (photomultipliers, HPDs, others), FIS/01 - FISICA SPERIMENTALE, ilmaisimet, Scintillation counter, business, kosminen säteily, performance, Particle Physics - Experiment
Abstract: The $3 \times 1 \times 1$ m$^3$ demonstrator is a dual phase liquid argon time projection chamber that has recorded cosmic rays events in 2017 at CERN. The light signal in these detectors is crucial to provide precise timing capabilities. The performances of the photon detection system, composed of five PMTs, are discussed. The collected scintillation and electroluminescence light created by passing particles has been studied in various detector conditions. In particular, the scintillation light production and propagation processes have been analyzed and compared to simulations, improving the understanding of some liquid argon properties., Comment: 30 pages, 26 figures
Published: 2020

12. Improved limits on a hypothetical X(16.7) boson and a dark photon decaying into e+e− pairs

Author: P. Ulloa, L. Kravchuk, V. Yu. Volkov, D. Peshekhonov, Serguei Kuleshov, V. A. Matveev, M. Hösgen, D. Shchukin, Rimsky Alejandro Rojas, André Rubbia, V.A. Polyakov, A. Yu. Trifonov, L. Molina Bueno, V. O. Tikhomirov, Paolo Crivelli, V.D. Samoylenko, A. V. Dermenev, V.E. Burtsev, A. N. Toropin, V. E. Lyubovitskij, David R. Cooke, B. Ketzer, V.N. Kolosov, A.G. Chumakov, B.I. Vasilishin, V. M. Lysan, Igor Konorov, S. N. Gninenko, M. Jeckel, R.R. Dusaev, M. Kirsanov, V. A. Kramarenko, Nikolaos Charitonidis, T. Enik, D. A. Tlisov, Sergey Kovalenko, B. Radics, E. Depero, Vassili Kachanov, S. Gerassimov, N. V. Krasnikov, D. V. Kirpichnikov, G. D. Kekelidze, A. Feshchenko, Vladimir Frolov, Johannes Bernhard, A. Gardikiotis, Dipanwita Banerjee, Petr Volkov, G. Vasquez Arenas, S. V. Donskov, A. E. Karneyeu, I. Tlisova, and Yu. V. Mikhailov
Subjects: Physics, Photon, 010308 nuclear & particles physics, Bremsstrahlung, Electron, 01 natural sciences, 7. Clean energy, Super Proton Synchrotron, Dark photon, Excited state, 0103 physical sciences, Anomaly (physics), Atomic physics, 010306 general physics, Boson
Abstract: The improved results on a direct search for a new X ( 16.7 MeV ) boson that could explain the anomalous excess of e + e − pairs observed in the decays of the excited 8 Be ∗ nuclei (“Berillium or X17 anomaly”) are reported. Interestingly, new recent results in the nuclear transitions of another nucleus, 4 He , seems to support this anomaly spurring the need for an independent measurement. If the X boson exists, it could be produced in the bremsstrahlung reaction e − Z → e − Z X by a high energy beam of electrons incident on the active target in the NA64 experiment at the CERN Super Proton Synchrotron and observed through its subsequent decay into e + e − pairs. No evidence for such decays was found from the combined analysis of the data samples with total statistics corresponding to 8.4 × 10 10 electrons on target collected in 2017 and 2018. This allows one to set new limits on the X − e − coupling in the range 1.2 × 10 − 4 ≲ e e ≲ 6.8 × 10 − 4 , excluding part of the parameter space favored by the X17 anomaly, and setting new bounds on the mixing strength of photons with dark photons ( A ′ ) with a mass ≲ 24 MeV . For the 2018 run, the setup was optimized to probe the region of parameter space characterized by a large coupling e . This allowed a significant improvement in sensitivity despite a relatively modest increase in statistics.
Published: 2020

13. Hunting down the X17 boson at the CERN SPS

Author: T. Enik, Dipanwita Banerjee, L. Molina Bueno, D. Shchukin, V. E. Lyubovitskij, V.D. Samoylenko, Petr Volkov, David R. Cooke, V. A. Kramarenko, M. Kirsanov, P. Ulloa, Nikolaos Charitonidis, A. Yu. Trifonov, Serguei Kuleshov, N. V. Krasnikov, B. Radics, B. Ketzer, V.N. Kolosov, Paolo Crivelli, V. O. Tikhomirov, André Rubbia, S. V. Donskov, A.G. Chumakov, S. Girod, Igor Konorov, A. E. Karneyeu, D. V. Kirpichnikov, vI. Tlisova, V.A. Polyakov, Rimsky Alejandro Rojas, V. A. Matveev, D. A. Tlisov, Sergey Kovalenko, A. Feshchenko, Vladimir Frolov, Yu. V. Mikhailov, E. Depero, A. V. Dermenev, V.E. Burtsev, H. Sieber, G. Vasquez Arenas, Vassili Kachanov, M. Hösgen, G. D. Kekelidze, L. Kravchuk, V. Yu. Volkov, Johannes Bernhard, V. M. Lysan, D. Peshekhonov, B.I. Vasilishin, Yu. M. Andreev, S. Gerassimov, S. N. Gninenko, R.R. Dusaev, A. Gardikiotis, and A. N. Toropin
Subjects: Particle physics, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Regular Article - Experimental Physics, Monte Carlo method, Dark matter, FOS: Physical sciences, lcsh:Astrophysics, Parameter space, Tracking (particle physics), 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, lcsh:QB460-466, Dark Matter, Invariant mass, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Sensitivity (control systems), Detectors and Experimental Techniques, 010306 general physics, physics.ins-det, Engineering (miscellaneous), Bosons, Boson, Physics, Large Hadron Collider, hep-ex, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), Missing Mass (Astrophysics), lcsh:QC770-798, Particle Physics - Experiment
Abstract: Recently, the ATOMKI experiment has reported new evidence for the excess of e+e- events with a mass ∼ 17 MeV in the nuclear transitions of 4He, that they previously observed in measurements with 8Be. These observations could be explained by the existence of a new vector X17 boson. So far, the search for the decay X17 → e+e- with the NA64 experiment at the CERN SPS gave negative results. Here, we present a new technique that could be implemented in NA64 aiming to improve the sensitivity and to cover the remaining X17 parameter space. If a signal-like event is detected, an unambiguous observation is achieved by reconstructing the invariant mass of the X17 decay with the proposed method. To reach this goal an optimization of the X17 production target, as well as an efficient and accurate reconstruction of two close decay tracks, is required. A dedicated analysis of the available experimental data making use of the trackers information is presented. This method provides independent confirmation of the NA64 published results [1], validating the tracking procedure. The detailed Monte Carlo study of the proposed setup and the background estimate show that the goal of the proposed search is feasible., The European Physical Journal C, 80 (12), ISSN:1434-6044, ISSN:1434-6052
Published: 2020
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14. Measurement of the muon flux from 400 GeV/c protons interacting in a thick molybdenum/tungsten target

Author: V. Bayliss, Gareth J. Barker, L. Stoel, Volker Büscher, Alexey Volkov, Satoru Takahashi, Nobuko Kitagawa, G. M. Dallavalle, J.-K. Woo, Sandro Cadeddu, V. Gentile, Nicola Serra, K.Y. Lee, Mike Lamont, K. S. Lee, C. Hessler, A. Berdnikov, D. De Simone, A. Rakai, I. W. Harris, D. Karpenkov, D. Joković, S. Gorbunov, E. Elikkaya, Sergey Kovalenko, L. Gatignon, Volodymyr Rodin, R. Voronkov, I. Kadenko, L. Shihora, M. De Serio, E. Kurbatov, M. Bertani, F. Sanchez Galan, Stefano Sgobba, A. Akmete, Oleg Bezshyyko, D. Kolev, C. Kamiscioglu, C. Ahdida, Yu. Mikhaylov, Heiko Lacker, Dmitry Golubkov, Philippe Mermod, A. K. Managadze, R. A. Fini, M. Rinaldesi, Oksana Shadura, L. A. Dougherty, S. Dmitrievskiy, Davide Tommasini, A. Bay, Raffaele Albanese, S. Shirobokov, F. Baaltasar Dos Santos, V.N. Kolosov, Anne-Marie Magnan, Shigeki Aoki, D. Grenier, A. Sanz Ull, R. de Asmundis, Toshiyuki Nakano, T. Ruf, G. Khoriauli, Konstantin F. Vlasik, S. Kormannshaus, K. Kershaw, A. Golutvin, V. Grichine, V. Poliakov, V. Venturi, V. Tioukov, Stefania Xella, Fabrizio Fabbri, D. Breton, E. Lopez Sola, G. Lanfranchi, N. Di Marco, B. Kaiser, M. Manfredi, J. Bauche, P. Santos Diaz, Lesya Shchutska, A. Blanco, A. Di Crescenzo, Heinz Vincke, Yu. Guz, Victor Kim, Mikhail V. Gorshenkov, Volodymyr M. Gorkavenko, David Milstead, A. Alexandrov, Nikolaos Charitonidis, Alexander Malinin, Caren Hagner, Vadim Kostyukhin, Alexey A. Petrov, Mitsuhiro Nakamura, S. van Waasen, Serge Smirnov, Kunihiro Morishima, Andrea Prota, Y. Berdnikov, P. Wertelaers, V.D. Samoylenko, I. Korol, J. Prieto Prieto, M. de Magistris, Helmut Vincke, Brennan Goddard, Alexey Boyarsky, S. V. Donskov, T. Enik, J. S. Schliwinski, Rainer Wanke, Tiziano Rovelli, Nicolò Tosi, L. Golinka-Bezshyyko, M. M. Khabibullin, J. Chauveau, Matthew Fraser, F. Vannucci, John Back, N. Owtscharenko, Karel Cornelis, F. Bardou, A. Sokolenko, Alexander E. Shustov, H. Shibuya, A. Mefodev, Hans Dijkstra, Inar Timiryasov, Fedor Ratnikov, Samuel Silverstein, N. Konovalova, S. Vilchinski, Giuliana Galati, G. Haefeli, P. Ninin, N. I. Starkov, J. Maalmi, N. Gruzinskii, B. D. Park, M. Casolino, D. Sukhonos, Z. M. Uteshev, Osamu Sato, Dmitry Gorbunov, A. Kolesnikov, T. Rawlings, P. Kurbatov, Arnaud Dubreuil, T. Shchedrina, Adele Lauria, A. L. Grandchamp, S. Ricciardi, Andrea Miano, Iaroslava Bezshyiko, Paolo Ciambrone, A. S. Chepurnov, T. M. Roganova, D. Domenici, Martina Ferrillo, Masahiro Komatsu, G. L. Petkov, Alessandro Montanari, E. S. Savchenko, Alessandro Paoloni, Iryna Boiarska, M. Bogomilov, V. P. Loschiavo, Maksym Ovchynnikov, Ekaterina Kuznetsova, Yu.A. Kudenko, M. Ferro-Luzzi, Gianluigi Arduini, Marco Calviani, C. Franco, L. G. Dedenko, M. Jonker, A. Chumakov, A. Quercia, E. Solodko, V. E. Lyubovitskij, K. Kodama, Vladimir Shevchenko, Natalia Polukhina, Oleg Ruchayskiy, Maria Elena Stramaglia, Ciro Visone, Oleg Fedin, P. Teterin, Oleg Mineev, A. Bagulya, R. Tsenov, Oliver Lantwin, J.-W. Ko, V. M. Grachev, Akira Nishio, Hiroki Rokujo, S. Movchan, Markus Cristinziani, O. Williams, Yu. Zaytsev, Antonio Perillo-Marcone, J.-M. Lévy, J. L. Tastet, A. Datwyler, Liliana Congedo, N. Azorskiy, G. Vankova-Kirilova, L. Lopes, Viktor Rodin, John Osborne, Victor Maleev, Patrick Owen, P. Fonte, M. Chernyavskiy, A. Korzenev, Y. Muttoni, F. Redi, E. Khalikov, O. Durhan, G. Bencivenni, M. Battistin, Alexander Mclean Marshall, A. Pastore, S. Nasybulin, J. Zimmerman, K.-Y. Choi, J. Gall, G. Rosa, P. Chau, A. A. Rademakers, E. van Herwijnen, D. Yilmaz, A. M. Anokhina, M. Patel, S. Mikado, A. Khotyantsev, Yuki Manabe, J. Y. Sohn, N. Okateva, Petr Andreevich Gorbounov, S. Than Naing, Giuseppe Iaselli, V. Kurochka, A. Shakin, A.U. Yilmazer, Nicola D'Ambrosio, F. Fedotovs, Giuseppe D'Appollonio, G.V. Khaustov, Raffaele Fresa, A. De Roeck, Alexander Baranov, R. Jacobsson, D. Pereyma, M. Ehlert, K. Filippov, Yosuke Suzuki, J. Boehm, J. De Carvalho Saraiva, A. Crupano, A. Calcaterra, D. Bick, W. Schmidt-Parzefall, S. Buontempo, A.S. Novikov, E. Koukovini Platia, A. Golovatiuk, Verena Kain, Claudio O. Dib, G. De Lellis, T. Fukuda, H. Hakobyan, Richard Brenner, G. Gavrilov, Elena Graverini, Y.G. Kim, Naotaka Naganawa, V. Drohan, A. Iuliano, Annarita Buonaura, S. Simone, Christopher Betancourt, Pavel Shatalov, R. Froeschl, E. V. Atkin, B. Hosseini, J.-L. Grenard, Rosa Simoniello, M. D. Skorokhvatov, Michael Wurm, A. Dolmatov, E. Ursov, Sergey E. Ulin, S. Ogawa, Mario Campanelli, Vladimir Samsonov, P. Dergachev, A.B. Rodrigues Cavalcante, A. Saputi, B. Opitz, Konstantinos Petridis, D. A. Podgrudkov, B. Obinyakov, Mikhail Hushchyn, Andrey Ustyuzhanin, Daniel Treille, A. M. Guler, V. Cicero, C. S. Yoon, S. Bieschke, Valery V. Dmitrenko, Patrick Robbe, A. Hollnagel, Maria Cristina Montesi, I. Korol’ko, M. Torii, P. Pacholek, L. Di Giulio, G. Felici, A. Kono, J. Borburgh, M. Prokudin, S. Marsh, W. Bonivento, I. Krasilnikova, Kyrylo Bondarenko, Mikhail Shaposhnikov, A.V. Etenko, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), SHiP, Ahdida, C., Akmete, A., Albanese, R., Alexandrov, A., Anokhina, A., Aoki, S., Arduini, G., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Santos, F. Baaltasar Do, Baranov, A., Bardou, F., Barker, G. J., Battistin, M., Bauche, J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Boiarska, I., Bondarenko, K., Bonivento, W. M., Borburgh, J., Boyarsky, A., Brenner, R., Breton, D., Büscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Calviani, M., Campanelli, M., Casolino, M., Charitonidis, N., Chau, P., Chauveau, J., Chepurnov, A., Chernyavskiy, M., Choi, K. -Y., Chumakov, A., Ciambrone, P., Cicero, V., Congedo, L., Cornelis, K., Cristinziani, M., Crupano, A., Dallavalle, G. M., Datwyler, A., D’Ambrosio, N., D’Appollonio, G., de Asmundis, R., De Carvalho Saraiva, J., De Lellis, G., de Magistris, M., De Roeck, A., De Serio, M., De Simone, D., Dedenko, L., Dergachev, P., Crescenzo, A. Di, Giulio, L. Di, Marco, N. Di, Dib, C., Dijkstra, H., Dmitrenko, V., Dmitrievskiy, S., Dougherty, L. A., Dolmatov, A., Domenici, D., Donskov, S., Drohan, V., Dubreuil, A., Durhan, O., Ehlert, M., Elikkaya, E., Enik, T., Etenko, A., Fabbri, F., Fedin, O., Fedotovs, F., Felici, G., Ferrillo, M., Ferro-Luzzi, M., Filippov, K., Fini, R. A., Fonte, P., Franco, C., Fraser, M., Fresa, R., Froeschl, R., Fukuda, T., Galati, G., Gall, J., Gatignon, L., Gavrilov, G., Gentile, V., Goddard, B., Golinka-Bezshyyko, L., Golovatiuk, A., Golubkov, D., Golutvin, A., Gorbounov, P., Gorbunov, D., Gorbunov, S., Gorkavenko, V., Gorshenkov, M., Grachev, V., Grandchamp, A. L., Graverini, E., Grenard, J. -L., Grenier, D., Grichine, V., Gruzinskii, N., Guler, A. M., Guz, Yu., Haefeli, G. J., Hagner, C., Hakobyan, H., Harris, I. W., Herwijnen, E. van, Hessler, C., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, A., Jacobsson, R., Joković, D., Jonker, M., Kadenko, I., Kain, V., Kaiser, B., Kamiscioglu, C., Karpenkov, D., Kershaw, K., Khabibullin, M., Khalikov, E., Khaustov, G., Khoriauli, G., Khotyantsev, A., Kim, Y. G., Kim, V., Kitagawa, N., Ko, J. -W., Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Kono, A., Konovalova, N., Kormannshaus, S., Korol, I., Korol’Ko, I., Korzenev, A., Kostyukhin, V., Platia, E. Koukovini, Kovalenko, S., Krasilnikova, I., Kudenko, Y., Kurbatov, E., Kurbatov, P., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lamont, M., Lanfranchi, G., Lantwin, O., Lauria, A., Lee, K. S., Lee, K. Y., Lévy, J. -M., Loschiavo, V. P., Lopes, L., Sola, E. Lopez, Lyubovitskij, V., Maalmi, J., Magnan, A., Maleev, V., Malinin, A., Manabe, Y., Managadze, A. K., Manfredi, M., Marsh, S., Marshall, A. M., Mefodev, A., Mermod, P., Miano, A., Mikado, S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Montanari, A., Montesi, M. C., Morishima, K., Movchan, S., Muttoni, Y., Naganawa, N., Nakamura, M., Nakano, T., Nasybulin, S., Ninin, P., Nishio, A., Novikov, A., Obinyakov, B., Ogawa, S., Okateva, N., Opitz, B., Osborne, J., Ovchynnikov, M., Owtscharenko, N., Owen, P. H., Pacholek, P., Paoloni, A., Park, B. D., Pastore, A., Patel, M., Pereyma, D., Perillo-Marcone, A., Petkov, G. L., Petridis, K., Petrov, A., Podgrudkov, D., Poliakov, V., Polukhina, N., Prieto, J. Prieto, Prokudin, M., Prota, A., Quercia, A., Rademakers, A., Rakai, A., Ratnikov, F., Rawlings, T., Redi, F., Ricciardi, S., Rinaldesi, M., Rodin, Volodymyr, Rodin, Viktor, Robbe, P., Cavalcante, A. B. Rodrigue, Roganova, T., Rokujo, H., Rosa, G., Rovelli, T., Ruchayskiy, O., Ruf, T., Samoylenko, V., Samsonov, V., Galan, F. Sanchez, Diaz, P. Santo, Ull, A. Sanz, Saputi, A., Sato, O., Savchenko, E. S., Schliwinski, J. S., Schmidt-Parzefall, W., Serra, N., Sgobba, S., Shadura, O., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shihora, L., Shirobokov, S., Shustov, A., Silverstein, S. B., Simone, S., Simoniello, R., Skorokhvatov, M., Smirnov, S., Sohn, J. Y., Sokolenko, A., Solodko, E., Starkov, N., Stoel, L., Stramaglia, M. E., Sukhonos, D., Suzuki, Y., Takahashi, S., Tastet, J. L., Teterin, P., Naing, S. Than, Timiryasov, I., Tioukov, V., Tommasini, D., Torii, M., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ursov, E., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., Venturi, V., Vilchinski, S., Vincke, Heinz, Vincke, Helmut, Visone, C., Vlasik, K., Volkov, A., Voronkov, R., Waasen, S. van, Wanke, R., Wertelaers, P., Williams, O., Woo, J. -K., Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., Zaytsev, Yu., and Zimmerman, J.
Subjects: Physics and Astronomy (miscellaneous), Proton, drift tube, Physics::Instrumentation and Detectors, Hadron, Monte Carlo method, Tungsten, 01 natural sciences, law.invention, Physics, Particles & Fields, Subatomär fysik, iron, molybdenum, law, Subatomic Physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Detectors and Experimental Techniques, Nuclear Experiment, Physics, Large Hadron Collider, new physics, 400 GeV/c, p: interaction, Nuclear & Particles Physics, particle: interaction, Physical Sciences, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, GEANT, p: beam dump, numerical calculations: Monte Carlo, Particle Physics - Experiment, chemistry.chemical_element, muon: particle identification, lcsh:Astrophysics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear physics, tungsten: target, 0103 physical sciences, lcsh:QB460-466, p: beam transport, muon: flux: measured, Nuclear Physics - Experiment, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, Beam dump, 010306 general physics, Engineering (miscellaneous), 0206 Quantum Physics, Muon, Science & Technology, Spectrometer, 010308 nuclear & particles physics, background, CERN SPS, chemistry, interaction: length, lcsh:QC770-798, Physics::Accelerator Physics, High Energy Physics::Experiment, experimental results, muon: momentum spectrum, muon: spectrometer
Abstract: The SHiP experiment is proposed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/$c$ proton beam dump at the CERN SPS. About $10^{11}$ muons per spill will be produced in the dump. To design the experiment such that the muon-induced background is minimized, a precise knowledge of the muon spectrum is required. To validate the muon flux generated by our Pythia and GEANT4 based Monte Carlo simulation (FairShip), we have measured the muon flux emanating from a SHiP-like target at the SPS. This target, consisting of 13 interaction lengths of slabs of molybdenum and tungsten, followed by a 2.4 m iron hadron absorber was placed in the H4 400 GeV/$c$ proton beam line. To identify muons and to measure the momentum spectrum, a spectrometer instrumented with drift tubes and a muon tagger were used. During a three-week period a dataset for analysis corresponding to $(3.27\pm0.07)~\times~10^{11}$ protons on target was recorded. This amounts to approximatively 1% of a SHiP spill. The SHiP experiment will search for very weakly interacting particles beyond the Standard Model which are produced in a 400 \GeV/$c$ proton beam dump at the CERN SPS. About $10^{11}$ muons per spill will be produced in the dump. To design the experiment such that the muon-induced background is minimized, a precise knowledge of the muon spectrum is required. To validate the muon flux generated by our Pythia and GEANT4 based Monte Carlo simulation (FairShip), we have measured the muon flux emanating from a SHiP-like target at the SPS. This target, consisting of 13 interaction lengths of slabs of molybdenum and tungsten, followed by a 2.4 m iron hadron absorber was placed in the H4 400~\GeV/$c$ proton beam line. To identify muons and to measure the momentum spectrum, a spectrometer instrumented with drift tubes and a muon tagger were used. During a three-week period a dataset for analysis corresponding to $(3.27\pm0.07)~\times~10^{11}$ protons on target was recorded. This amounts to approximatively 1\% of a SHiP spill. The SHiP experiment is proposed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at the CERN SPS. About $10^{11}$ muons per spill will be produced in the dump. To design the experiment such that the muon-induced background is minimized, a precise knowledge of the muon spectrum is required. To validate the muon flux generated by our Pythia and GEANT4 based Monte Carlo simulation (FairShip), we have measured the muon flux emanating from a SHiP-like target at the SPS. This target, consisting of 13 interaction lengths of slabs of molybdenum and tungsten, followed by a 2.4 m iron hadron absorber was placed in the H4 400 GeV/c proton beam line. To identify muons and to measure the momentum spectrum, a spectrometer instrumented with drift tubes and a muon tagger were used. During a 3-week period a dataset for analysis corresponding to $(3.27\pm 0.07)~\times ~10^{11}$ protons on target was recorded. This amounts to approximatively 1% of a SHiP spill.
Published: 2020

15. First results on ProtoDUNE-SP liquid argon time projection chamber performance from a beam test at the CERN Neutrino Platform

Author: Francesco Tortorici, Andrea Zani, J. Moon, P. E. L. Clarke, C. Palomares, M. B. Smy, M. Oberling, J. Migenda, F. Pietropaolo, T. Hasegawa, A. de Gouvea, N.V. Mokhov, S. Rescia, Andrés Castillo, F. Marinho, Mario Campanelli, Jürgen Pozimski, R. Raboanary, F. Sergiampietri, D. A. Sanders, John F. Beacom, Steven Gardiner, P. Madigan, R. Sulej, M. V. Diwan, D. J. Payne, L. Pickering, S. Manly, P. Hamilton, R. G. Van de Water, Chao Zhang, J. Wang, J. Hoff, Burak Bilki, Rex Tayloe, M. A. Uchida, A. Stuart, O. Dvornikov, P. De Lurgio, C. A. Ternes, J. A. Nowak, R. Bajou, P. Schlabach, E. Seltskaya, C. Lastoria, D. Naples, Kazuhiro Terao, A. Paudel, E. T. Worcester, C. Gotti, Michael Mulhearn, S. B. Boyd, T. Hill, D. Douglas, Daniel Gastler, G. A. Valdiviesso, S. Emery, M. C. Goodman, D. C. Christian, M. Newcomer, H. W. Sobel, N. Poonthottathil, Mingshui Chen, J. Urheim, B. Viren, D. Montanari, Giorgio Riccobene, I. Rakhno, M. A. Ramirez Delgado, J. Mousseau, Ara Ioannisian, H. T. Rakotondramanana, L. Molina Bueno, A. Rappoldi, Matthaeus Leitner, K. Fahey, S. J. Brice, M. E. Convery, Nicolas Lurkin, Bindu A. Bambah, S. Ravat, W. Mu, M. A. Arroyave, A. A. Machado, R. Petti, Rukmani Mohanta, Andrew Norman, V. N. Solovov, X. Pons, J. Marteau, Irakli Lomidze, Zviad Tsamalaidze, H. da Motta, M. Mellinato, M. Karolak, D. Autiero, Poonam Mehta, G. Karagiorgi, Sudarshan Paramesvaran, S. Davini, R. L. Talaga, V. Paolone, V. Pec, J. Pillow, S. Vergani, Simon Lin, K. Wood, Jaroslaw Pasternak, G. C. Blazey, Katsuya Yonehara, T. E. Coan, B. Radics, W. Gu, A. M. Teklu, E. Blucher, S. Childress, S. Matsuno, Christian Farnese, Akitaka Ariga, Marvin L Marshak, A. Chiriacescu, F. Terranova, E. Raguzin, L. C. J. Rice, L. Domine, M. Pozzato, T. Miao, L. Da Silva Peres, D. Mladenov, T. Durkin, H. Y. Wei, L. Escudero Sanchez, T. Usher, A. Rafique, A. Verdugo, B. Stillwell, A. Lambert, K. Negishi, A. Falcone, A. Holin, J. L. Bazo Alba, J. Rout, E. D. Zimmerman, M. A. Leigui de Oliveira, A. Olivier, J. Nesbit, Aldo Penzo, Kate Scholberg, Giovanni Bellettini, S. Kasai, O. Gogota, B. Ramson, P. de Jong, R. Zaki, A. Tonazzo, H. Schellman, E. Kemp, T. Rehak, I. De Bonis, Pedro A. N. Machado, B. T. Fleming, M. P. Andrews, M. Bishai, T. Alion, N. Martinez, L. Greenler, Deywis Moreno, T. Loew, H. Berns, P. Ding, M. J. Dolinski, R. J. Nichol, B. Guo, Frank Filthaut, Stefan Antusch, Nikolaos Charitonidis, Patrick Green, R. Howell, Z. Parsa, M. Sorel, J. C. Freeman, J. A. Musser, D. Gratieri, J. Reichenbacher, S. Ventura, Kaushik De, M. J. Rodriguez Alonso, Patrick Dunne, A. Scaramelli, M. Tenti, J. R. T. de Mello Neto, Raj Gandhi, Riccardo Papaleo, M. C. Sanchez, V. Zutshi, Sandeep Miryala, Enrique Calvo, N. Tsverava, V. Radeka, C. Touramanis, J. M. Paley, Antonio Ereditato, J. S. Díaz, Marco Pallavicini, D. MacFarland, G. Savage, J. Soto-Oton, P. Fernandez Menendez, J. Han, C. Y. Chi, M. Groh, N. Yershov, M. Chalifour, E. Hazen, M. A. Acero, C. Mossey, L. 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E., Lang, K., Langford, T., Lasorak, P., Last, D., Lastoria, C., Laundrie, A., Lawrence, A., Lazanu, I., Lazur, R., Le, T., Learned, J., Lebrun, P., Miotto, G. L., Lehnert, R., De Oliveira, M. A. L., Leitner, M., Leyton, M., Li, L., Li, S., Li, S. W., Li, T., Li, Y., Liao, H., Lin, C. S., Lin, S., Lister, A., Littlejohn, B. R., Liu, J., Liu, T., Lockwitz, S., Loew, T., Lokajicek, M., Lomidze, I., Long, K., Loo, K., Lorca, D., Lord, T., Losecco, J. M., Louis, W. C., Luk, K. B., Luo, X., Lurkin, N., Lux, T., Luzio, V. P., Macfarland, D., Machado, A. A., Machado, P., Macias, C. T., Macier, J. R., Maddalena, A., Madigan, P., Magill, S., Mahn, K., Maio, A., Maloney, J. A., Mandrioli, G., Maneira, J., Manenti, L., Manly, S., Mann, A., Manolopoulos, K., Plata, M. M., Marchionni, A., Marciano, W., Marfatia, D., Mariani, C., Maricic, J., Marinho, F., Marino, A. D., Marshak, M., Marshall, C., Marshall, J., Marteau, J., Martin-Albo, J., Martinez, N., Martinez Caicedo, D. A., Martynenko, S., Mason, K., Mastbaum, A., Masud, M., Matsuno, S., Matthews, J., Mauger, C., Mauri, N., Mavrokoridis, K., Mazza, R., Mazzacane, A., Mazzucato, E., Mccluskey, E., Mcconkey, N., Mcfarland, K. S., Mcgrew, C., Mcnab, A., Mefodiev, A., Mehta, P., Melas, P., Mellinato, M., Mena, O., Menary, S., Mendez, H., Menegolli, A., Meng, G., Messier, M. D., Metcalf, W., Mewes, M., Meyer, H., Miao, T., Michna, G., Miedema, T., Migenda, J., Milincic, R., Miller, W., Mills, J., Milne, C., Mineev, O., Miranda, O. G., Miryala, S., Mishra, C. S., Mishra, S. R., Mislivec, A., Mladenov, D., Mocioiu, I., Moffat, K., Moggi, N., Mohanta, R., Mohayai, T. A., Mokhov, N., Molina, J., Bueno, L. M., Montanari, A., Montanari, C., Montanari, D., Zetina, L. M. M., Moon, J., Mooney, M., Moor, A., Moreno, D., Morgan, B., Morris, C., Mossey, C., Motuk, E., Moura, C. A., Mousseau, J., Mu, W., Mualem, L., Mueller, J., Muether, M., Mufson, S., Muheim, F., Muir, A., Mulhearn, M., Muramatsu, H., Murphy, S., Musser, J., Nachtman, J., Nagu, S., Nalbandyan, M., Nandakumar, R., Naples, D., Narita, S., Navas-Nicolas, D., Nayak, N., Nebot-Guinot, M., Necib, L., Negishi, K., Nelson, J. K., Nesbit, J., Nessi, M., Newbold, D., Newcomer, M., Newhart, D., Nichol, R., Niner, E., Nishimura, K., Norman, A., Norrick, A., Northrop, R., Novella, P., Nowak, J. A., Oberling, M., Campo, A. O. D., Olivier, A., Onel, Y., Onishchuk, Y., Ott, J., Pagani, L., Pakvasa, S., Palamara, O., Palestini, S., Paley, J. M., Pallavicini, M., Palomares, C., Pantic, E., Paolone, V., Papadimitriou, V., Papaleo, R., Papanestis, A., Paramesvaran, S., Parke, S., Parsa, Z., Parvu, M., Pascoli, S., Pasqualini, L., Pasternak, J., Pater, J., Patrick, C., Patrizii, L., Patterson, R. B., Patton, S. J., Patzak, T., Paudel, A., Paulos, B., Paulucci, L., Pavlovic, Z., Pawloski, G., Payne, D., Pec, V., Peeters, S. J. M., Penichot, Y., Pennacchio, E., Penzo, A., Peres, O. L. G., Perry, J., Pershey, D., Pessina, G., Petrillo, G., Petta, C., Petti, R., Piastra, F., Pickering, L., Pietropaolo, F., Pillow, J., Pinzino, J., Plunkett, R., Poling, R., Pons, X., Poonthottathil, N., Pordes, S., Potekhin, M., Potenza, R., Potukuchi, B. V. K. S., Pozimski, J., Pozzato, M., Prakash, S., Prakash, T., Prince, S., Prior, G., Pugnere, D., Qi, K., Qian, X., Raaf, J. L., Raboanary, R., Radeka, V., Rademacker, J., Radics, B., Rafique, A., Raguzin, E., Rai, M., Rajaoalisoa, M., Rakhno, I., Rakotondramanana, H. T., Rakotondravohitra, L., Ramachers, Y. A., Rameika, R., Delgado, M. A. R., Ramson, B., Rappoldi, A., Raselli, G., Ratoff, P., Ravat, S., Razafinime, H., Real, J. S., Rebel, B., Redondo, D., Reggiani-Guzzo, M., Rehak, T., Reichenbacher, J., Reitzner, S. D., Renshaw, A., Rescia, S., Resnati, F., Reynolds, A., Riccobene, G., Rice, L. C. J., Rielage, K., Rigamonti, A., Rigaut, Y., Rivera, D., Rochester, L., Roda, M., Rodrigues, P., Alonso, M. J. R., Rondon, J. R., Roeth, A. J., Rogers, H., Rosauro-Alcaraz, S., Rosenthal, M., Rossella, M., Rout, J., Roy, S., Rubbia, A., Rubbia, C., Russell, B., Russell, J., Ruterbories, D., Saakyan, R., Sacerdoti, S., Safford, T., Sahu, N., Sala, P., Salukvadze, G., Samios, N., Sanchez, M. C., Sanders, D. A., Sankey, D., Santana, S., Santos-Maldonado, M., Saoulidou, N., Sapienza, P., Sarasty, C., Sarcevic, I., Savage, G., Savinov, V., Scaramelli, A., Scarff, A., Scarpelli, A., Schellman, H., Schlabach, P., Schmitz, D., Scholberg, K., Schukraft, A., Segreto, E., Seltskaya, E., Sensenig, J., Seong, I., Sergi, A., Sergiampietri, F., Sgalaberna, D., Shaevitz, M. H., Shafaq, S., Shamma, M., Sharma, H. 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A., Terranova, F., Testera, G., Thea, A., Thompson, J. L., Thorn, C., Timm, S. C., Tonazzo, A., Torti, M., Tortola, M., Tortorici, F., Totani, D., Toups, M., Touramanis, C., Trevor, J., Trzaska, W. H., Tsai, Y. T., Tsamalaidze, Z., Tsang, K. V., Tsverava, N., Tufanli, S., Tull, C., Tyley, E., Tzanov, M., Uchida, M. A., Urheim, J., Usher, T., Vagins, M. R., Vahle, P., Valdiviesso, G. A., Valencia, E., Vallari, Z., Valle, J. W. F., Vallecorsa, S., Berg, R. V., De Water, R. G. V., Forero, D. V., Varanini, F., Vargas, D., Varner, G., Vasel, J., Vasseur, G., Vaziri, K., Ventura, S., Verdugo, A., Vergani, S., Vermeulen, M. A., Verzocchi, M., De Souza, H. V., Vignoli, C., Vilela, C., Viren, B., Vrba, T., Wachala, T., Waldron, A. V., Wallbank, M., Wang, H., Wang, J., Wang, Y., Warburton, K., Warner, D., Wascko, M., Waters, D., Watson, A., Weatherly, P., Weber, A., Weber, M., Wei, H., Weinstein, A., Wenman, D., Wetstein, M., While, M. R., White, A., Whitehead, L. 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D., Zito, M., Zucchelli, S., Zuklin, J., Zutshi, V., Zwaska, R., Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), DUNE, Abi, B, Abud, A, Acciarri, R, Acero, M, Adamov, G, Adamowski, M, Adams, D, Adrien, P, Adinolfi, M, Ahmad, Z, Ahmed, J, Alion, T, Monsalve, S, Alt, C, Anderson, J, Andreopoulos, C, Andrews, M, Andrianala, F, Andringa, S, Ankowski, A, Antonova, M, 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Almeida, R, Debbins, P, Bonis, I, Decowski, M, De Gouv a, A, Holanda, P, Astiz, I, Deisting, A, Jong, P, Delbart, A, Delepine, D, Delgado, M, Dell'Acqua, A, Lurgio, P, Neto, J, Demuth, D, Dennis, S, Densham, C, Deptuch, G, Roeck, A, Romeri, V, Vries, J, Dharmapalan, R, Dias, M, Diaz, F, Diaz, J, Domizio, S, Giulio, L, Ding, P, Noto, L, Distefano, C, Diurba, R, Diwan, M, Djurcic, Z, Dokania, N, Dolinski, M, Domine, L, Douglas, D, Drielsma, F, Duchesneau, D, Duffy, K, Dunne, P, Durkin, T, Duyang, H, Dvornikov, O, Dwyer, D, Dyshkant, A, Eads, M, Edmunds, D, Eisch, J, Emery, S, Ereditato, A, Escobar, C, Sanchez, L, Evans, J, Ewart, E, Ezeribe, A, Fabre, C, Fahey, K, Falcone, A, Farnese, C, Farzan, Y, Felix, J, Fernandez-Martinez, E, Menendez, P, Ferraro, F, Fields, L, Filkins, A, Filthaut, F, Fitzpatrick, R, Flanagan, W, Fleming, B, Flight, R, Fowler, J, Fox, W, Franc, J, Francis, K, Franco, D, Freeman, J, Freestone, J, Fried, J, Friedland, A, Fuess, S, Furic, I, Furmanski, A, Gago, A, Gallagher, H, Gallego-Ros, A, Gallice, N, Galymov, V, Gamberini, E, Gamble, T, Gandhi, R, Gandrajula, R, Gao, S, Garcia-Gamez, D, Garcia-Peris, M, Gardiner, S, Gastler, D, Ge, G, Gelli, B, Gendotti, A, Gent, S, Ghorbani-Moghaddam, Z, Gibin, D, Gil-Botella, I, Girerd, C, Giri, A, Gnani, D, Gogota, O, Gold, M, Gollapinni, S, Gollwitzer, K, Gomes, R, Bermeo, L, Fajardo, L, Gonnella, F, Gonzalez-Cuevas, J, Goodman, M, Goodwin, O, Goswami, S, Gotti, C, Goudzovski, E, Grace, C, Graham, M, Gramellini, E, Gran, R, Granados, E, Grant, A, Grant, C, Gratieri, D, Green, P, Green, S, Greenler, L, Greenwood, M, Greer, J, Griffith, W, Groh, M, Grudzinski, J, Grzelak, K, Gu, W, Guarino, V, Guenette, R, Guglielmi, A, Guo, B, Guthikonda, K, Gutierrez, R, Guzowski, P, Guzzo, M, Gwon, S, Haaf, K, Habig, A, Hackenburg, A, Hadavand, H, Haenni, R, Hahn, A, Haigh, J, Haiston, J, Hamernik, T, Hamilton, P, Han, J, Harder, K, Harris, D, Hartnell, J, Hasegawa, T, Hatcher, R, Hazen, E, Heavey, A, Heeger, K, Heise, J, Hennessy, K, Henry, S, Morquecho, M, Herner, K, Hertel, L, Hesam, A, Hewes, J, Higuera, A, Hill, T, Hillier, S, Himmel, A, Hoff, J, Hohl, C, Holin, A, Hoppe, E, Horton-Smith, G, Hostert, M, Hourlier, A, Howard, B, Howell, R, Hrivnak, J, Huang, J, Hugon, J, Iles, G, Ilic, N, Iliescu, A, Illingworth, R, Ioannisian, A, Itay, R, Izmaylov, A, James, E, Jargowsky, B, Jediny, F, Jes s-Valls, C, Ji, X, Jiang, L, Jimenez, S, Jipa, A, Joglekar, A, Johnson, C, Johnson, R, Jones, B, Jones, S, Jung, C, Junk, T, Jwa, Y, Kabirnezhad, M, Kaboth, A, Kadenko, I, Kamiya, F, Karagiorgi, G, Karcher, A, Karolak, M, Karyotakis, Y, Kasai, S, Kasetti, S, Kashur, L, Kazaryan, N, Kearns, E, Keener, P, Kelly, K, Kemp, E, Kendziora, C, Ketchum, W, Kettell, S, Khabibullin, M, Khotjantsev, A, Khvedelidze, A, Kim, D, King, B, Kirby, B, Kirby, M, Klein, J, Koehler, K, Koerner, L, Kohn, S, Koller, P, Kordosky, M, Kosc, T, Kose, U, Kostelecky, V, Kothekar, K, Krennrich, F, Kreslo, I, Kudenko, Y, Kudryavtsev, V, Kulagin, S, Kumar, J, Kumar, R, Kuruppu, C, Kus, V, Kutter, T, Lacarelle, B, Lambert, A, Lande, K, Lane, C, Lang, K, Langford, T, Lasorak, P, Last, D, Lastoria, C, Laundrie, A, Lawrence, A, Lazanu, I, Lazur, R, Le, T, Learned, J, Lebrun, P, Miotto, G, Lehnert, R, De Oliveira, M, Leitner, M, Leyton, M, Li, L, Li, S, Li, T, Li, Y, Liao, H, Lin, C, Lin, S, Lister, A, Littlejohn, B, Liu, J, Liu, T, Lockwitz, S, Loew, T, Lokajicek, M, Lomidze, I, Long, K, Loo, K, Lorca, D, Lord, T, Losecco, J, Louis, W, Luk, K, Luo, X, Lurkin, N, Lux, T, Luzio, V, Macfarland, D, Machado, A, Machado, P, Macias, C, Macier, J, Maddalena, A, Madigan, P, Magill, S, Mahn, K, Maio, A, Maloney, J, Mandrioli, G, Maneira, J, Manenti, L, Manly, S, Mann, A, Manolopoulos, K, Plata, M, Marchionni, A, Marciano, W, Marfatia, D, Mariani, C, Maricic, J, Marinho, F, Marino, A, Marshak, M, Marshall, C, Marshall, J, Marteau, J, Martin-Albo, J, Martinez, N, Martinez Caicedo, D, Martynenko, S, Mason, K, Mastbaum, A, Masud, M, Matsuno, S, Matthews, J, Mauger, C, Mauri, N, Mavrokoridis, K, Mazza, R, Mazzacane, A, Mazzucato, E, Mccluskey, E, Mcconkey, N, Mcfarland, K, Mcgrew, C, Mcnab, A, Mefodiev, A, Mehta, P, Melas, P, Mellinato, M, Mena, O, Menary, S, Mendez, H, Menegolli, A, Meng, G, Messier, M, Metcalf, W, Mewes, M, Meyer, H, Miao, T, Michna, G, Miedema, T, Migenda, J, Milincic, R, Miller, W, Mills, J, Milne, C, Mineev, O, Miranda, O, Miryala, S, Mishra, C, Mishra, S, Mislivec, A, Mladenov, D, Mocioiu, I, Moffat, K, Moggi, N, Mohanta, R, Mohayai, T, Mokhov, N, Molina, J, Bueno, L, Montanari, A, Montanari, C, Montanari, D, Zetina, L, Moon, J, Mooney, M, Moor, A, Moreno, D, Morgan, B, Morris, C, Mossey, C, Motuk, E, Moura, C, Mousseau, J, Mu, W, Mualem, L, Mueller, J, Muether, M, Mufson, S, Muheim, F, Muir, A, Mulhearn, M, Muramatsu, H, Murphy, S, Musser, J, Nachtman, J, Nagu, S, Nalbandyan, M, Nandakumar, R, Naples, D, Narita, S, Navas-Nicolas, D, Nayak, N, Nebot-Guinot, M, Necib, L, Negishi, K, Nelson, J, 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Qian, X, Raaf, J, Raboanary, R, Radeka, V, Rademacker, J, Radics, B, Rafique, A, Raguzin, E, Rai, M, Rajaoalisoa, M, Rakhno, I, Rakotondramanana, H, Rakotondravohitra, L, Ramachers, Y, Rameika, R, Ramson, B, Rappoldi, A, Raselli, G, Ratoff, P, Ravat, S, Razafinime, H, Real, J, Rebel, B, Redondo, D, Reggiani-Guzzo, M, Rehak, T, Reichenbacher, J, Reitzner, S, Renshaw, A, Rescia, S, Resnati, F, Reynolds, A, Riccobene, G, Rice, L, Rielage, K, Rigamonti, A, Rigaut, Y, Rivera, D, Rochester, L, Roda, M, Rodrigues, P, Alonso, M, Rondon, J, Roeth, A, Rogers, H, Rosauro-Alcaraz, S, Rosenthal, M, Rossella, M, Rout, J, Roy, S, Rubbia, A, Rubbia, C, Russell, B, Russell, J, Ruterbories, D, Saakyan, R, Sacerdoti, S, Safford, T, Sahu, N, Sala, P, Salukvadze, G, Samios, N, Sanchez, M, Sanders, D, Sankey, D, Santana, S, Santos-Maldonado, M, Saoulidou, N, Sapienza, P, Sarasty, C, Sarcevic, I, Savage, G, Savinov, V, Scaramelli, A, Scarff, A, Scarpelli, A, Schellman, H, Schlabach, P, Schmitz, D, Scholberg, 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Salinas C.J.S., Soldner-Rembold S., Solomey N., Solovov V., Sondheim W.E., Sorel M., Soto-Oton J., Sousa A., Soustruznik K., Spagliardi F., Spanu M., Spitz J., Spooner N.J.C., Spurgeon K., Staley R., Stancari M., Stanco L., Stefan D., Steiner H.M., Stewart J., Stillwell B., Stock J., Stocker F., Stokes T., Strait M., Strauss T., Striganov S., Stuart A., Sulej R., Summers D., Surdo A., Susic V., Suter L., Sutera C.M., Svoboda R., Szczerbinska B., Szelc A.M., Talaga R., Tanaka H.A., Oregui B.T., Tapper A., Tariq S., Tatar E., Tayloe R., Teklu A.M., Tenti M., Terao K., Ternes C.A., Terranova F., Testera G., Thea A., Thompson J.L., Thorn C., Timm S.C., Tonazzo A., Torti M., Tortola M., Tortorici F., Totani D., Toups M., Touramanis C., Trevor J., Trzaska W.H., Tsai Y.T., Tsamalaidze Z., Tsang K.V., Tsverava N., Tufanli S., Tull C., Tyley E., Tzanov M., Uchida M.A., Urheim J., Usher T., Vagins M.R., Vahle P., Valdiviesso G.A., Valencia E., Vallari Z., Valle J.W.F., Vallecorsa S., Berg R.V., De Water R.G.V., Forero D.V., Varanini F., Vargas D., Varner G., Vasel J., Vasseur G., Vaziri K., Ventura S., Verdugo A., Vergani S., Vermeulen M.A., Verzocchi M., De Souza H.V., Vignoli C., Vilela C., Viren B., Vrba T., Wachala T., Waldron A.V., Wallbank M., Wang H., Wang J., Wang Y., Warburton K., Warner D., Wascko M., Waters D., Watson A., Weatherly P., Weber A., Weber M., Wei H., Weinstein A., Wenman D., Wetstein M., While M.R., White A., Whitehead L.H., Whittington D., Wilking M.J., Wilkinson C., Williams Z., Wilson F., Wilson R.J., Wolcott J., Wongjirad T., Wood K., Wood L., Worcester E., Worcester M., Wret C., Wu W., Xiao Y., Yang G., Yang T., Yershov N., Yonehara K., Young T., Yu B., Yu H.W., Yu H.Z., Yu J., Yu Z.Y., Zaki R., Zalesak J., Zambelli L., Zamorano B., Zani A., Zazueta L., Zeller G.P., Zennamo J., Zeug K., Zhang C., Zhao M., Zhivun E., Zhu G., Zimmerman E.D., Zito M., Zucchelli S., Zuklin J., Zutshi V., Zwaska R., and Science and Technology Facilities Council (STFC)
Subjects: Technology, HIGH-ENERGY, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, far detector, beam transport, Noble liquid detectors (scintillation, ionization, double-phase), Cms Experıment, 01 natural sciences, 7. Clean energy, 09 Engineering, Particle identification, High Energy Physics - Experiment, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment (hep-ex), 0302 clinical medicine, Noble liquid detectors (scintillation, Detectors and Experimental Techniques, Instrumentation, Instruments & Instrumentation, physics.ins-det, time resolution, Mathematical Physics, Physics, 02 Physical Sciences, Time projection chamber, Large Hadron Collider, Detector, Instrumentation and Detectors (physics.ins-det), double-phase), Nuclear & Particles Physics, LIGHT, Neutrino, Particle Physics - Experiment, performance, Noble liquid detectors,(scintillation, ionization, double-phase), noise, CERN Lab, Large detector systems for particle and astroparticle physics, Noble liquid detectors (scintillation, ionization, double-phase), Time projection Chambers (TPC), 530 Physics, energy loss, Time projection chambers, FOS: Physical sciences, Particle detector, Nuclear physics, 03 medical and health sciences, neutrino: deep underground detector, 0103 physical sciences, ionization, Deep Underground Neutrino Experiment, High Energy Physics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], signal processing, activity report, Science & Technology, 010308 nuclear & particles physics, hep-ex, Large detector systems for particle and astroparticle physics, Time projection Chambers (TPC), 530 Physik, sensitivity, calibration, time projection chamber: liquid argon, Experimental High Energy Physics, Large detector systems for particle and astroparticle physic, single-phase), High Energy Physics::Experiment, photon: detector, particle identification, charged particle: irradiation, Beam (structure)
Abstract: The ProtoDUNE-SP detector was constructed and operated on the CERN Neutrino Platform. We thank the CERN management for providing the infrastructure for this experiment and gratefully acknowledge the support of the CERN EP, BE, TE, EN, IT and IPT Departments for NP04/ProtoDUNE-SP. This documentwas prepared by theDUNEcollaboration using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. This work was supported by CNPq, FAPERJ, FAPEG and FAPESP, Brazil; CFI, IPP and NSERC, Canada; CERN; MSMT, Czech Republic; ERDF, H2020-EU and MSCA, European Union; CNRS/IN2P3 and CEA, France; INFN, Italy; FCT, Portugal; NRF, South Korea; CAM, Fundacion "La Caixa" and MICINN, Spain; SERI and SNSF, Switzerland; TUBITAK, Turkey; The Royal Society and UKRI/STFC, United Kingdom; DOE and NSF, United States of America. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231., The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber with an active volume of 7.2× 6.1× 7.0 m3. It is installed at the CERN Neutrino Platform in a specially-constructed beam that delivers charged pions, kaons, protons, muons and electrons with momenta in the range 0.3 GeV/c to 7 GeV/c. Beam line instrumentation provides accurate momentum measurements and particle identification. The ProtoDUNE-SP detector is a prototype for the first far detector module of the Deep Underground Neutrino Experiment, and it incorporates full-size components as designed for that module. This paper describes the beam line, the time projection chamber, the photon detectors, the cosmic-ray tagger, the signal processing and particle reconstruction. It presents the first results on ProtoDUNE-SP's performance, including noise and gain measurements, dE/dx calibration for muons, protons, pions and electrons, drift electron lifetime measurements, and photon detector noise, signal sensitivity and time resolution measurements. The measured values meet or exceed the specifications for the DUNE far detector, in several cases by large margins. ProtoDUNE-SP's successful operation starting in 2018 and its production of large samples of high-quality data demonstrate the effectiveness of the single-phase far detector design., National Council for Scientific and Technological Development (CNPq), Carlos Chagas Filho Foundation for Research Support of the State of Rio de Janeiro (FAPERJ), FAPEG, Brazil, Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Canada Foundation for Innovation, Natural Sciences and Engineering Research Council of Canada (NSERC), Ministry of Education, Youth & Sports - Czech Republic Czech Republic Government, European Union (EU), H2020-EU, French Atomic Energy Commission, Istituto Nazionale di Fisica Nucleare (INFN), NRF, South Korea, La Caixa Foundation, Spanish Government, Swiss National Science Foundation (SNSF), Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK), Royal Society of London, United States Department of Energy (DOE), National Science Foundation (NSF) DE-AC02-05CH11231, IPP, Canada, CERN, MSCA, Centre National de la Recherche Scientifique (CNRS), Portuguese Foundation for Science and Technology, CAM, Spain, SERI, Switzerland, UKRI/STFC, United Kingdom, DE-AC02-07CH11359
Published: 2020

16. Silicon Photomultipliers for the decay tunnel instrumentation of the ENUBET neutrino beam

Author: M. Vesco, Cécile Jollet, Federico Cindolo, Claudia Brizzolari, M. Mezzetto, L. Ludovici, V. Mascagna, E. Lutsenko, Alessandro Paoloni, Francesco Velotti, M. Pozzato, Verena Kain, Nikolaos Charitonidis, Anselmo Margotti, Maurizio Bonesini, E. Parozzi, M. Tenti, Yu.A. Kudenko, B. Klicek, Alberto Gola, C. Riccio, M. Torti, A. Longhin, L. Votano, F. Pupilli, L. Magaletti, Michelangelo Pari, Sara Carturan, G. De Rosa, A. Meregaglia, A. Branca, G. Sirri, L. Meazza, G. Ballerini, M. Prest, G. Brunetti, M. G. Catanesi, M. Soldani, Marco Laveder, A. C. Ruggieri, F. Terranova, L. Pasqualini, L. Patrizii, G. Collazuol, Mario Stipčević, G. Mandrioli, Giovanni Paternoster, Carlo Scian, E. Radicioni, Alessandro Berra, S. Cecchini, E. Vallazza, C. Delogu, Fabio Acerbi, F. Dal Corso, E. Conti, A. Falcone, Marco Calviani, N. Mauri, Silvia Capelli, Marzio Nessi, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pozzato, M., Acerbi, F., Ballerini, G., Berra, A., Bonesini, M., Branca, A., Brizzolari, C., Brunetti, G., Calviani, M., Capelli, S., Carturan, S., Catanesi, M. G., Cecchini, S., Charitonidis, N., Cindolo, F., Collazuol, G., Conti, E., Corso, F. D., Delogu, C., De Rosa, G., Falcone, A., Gola, A., Jollet, C., Kain, V., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Lutsenko, E., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meazza, L., Meregaglia, A., Mezzetto, M., Nessi, M., Paoloni, A., Pari, M., Parozzi, E. G., Pasqualini, L., Paternoster, G., Patrizii, L., Prest, M., Pupilli, F., Radicioni, E., Riccio, C., Ruggeri, A. C., Scian, C., Sirri, G., Soldani, M., Stipcevic, M., Tenti, M., Terranova, F., Torti, M., Vallazza, E., Velotti, F., Vesco, M., Votano, L., Pozzato, M, Acerbi, F, Ballerini, G, Berra, A, Bonesini, M, Branca, A, Brizzolari, C, Brunetti, G, Calviani, M, Capelli, S, Carturan, S, Catanesi, M, Cecchini, S, Charitonidis, N, Cindolo, F, Collazuol, G, Conti, E, Corso, F, Delogu, C, De Rosa, G, Falcone, A, Gola, A, Jollet, C, Kain, V, Klicek, B, Kudenko, Y, Laveder, M, Longhin, A, Ludovici, L, Lutsenko, E, Magaletti, L, Mandrioli, G, Margotti, A, Mascagna, V, Mauri, N, Meazza, L, Meregaglia, A, Mezzetto, M, Nessi, M, Paoloni, A, Pari, M, Parozzi, E, Pasqualini, L, Paternoster, G, Patrizii, L, Prest, M, Pupilli, F, Radicioni, E, Riccio, C, Ruggieri, A, Scian, C, Sirri, G, Soldani, M, Stipcevic, M, Tenti, M, Terranova, F, Torti, M, Vallazza, E, Velotti, F, Vesco, M, Votano, L, Pozzato M., Acerbi F., Ballerini G., Berra A., Bonesini M., Branca A., Brizzolari C., Brunetti G., Calviani M., Capelli S., Carturan S., Catanesi M.G., Cecchini S., Charitonidis N., Cindolo F., Collazuol G., Conti E., Corso F.D., Delogu C., De Rosa G., Falcone A., Gola A., Jollet C., Kain V., Klicek B., Kudenko Y., Laveder M., Longhin A., Ludovici L., Lutsenko E., Magaletti L., Mandrioli G., Margotti A., Mascagna V., Mauri N., Meazza L., Meregaglia A., Mezzetto M., Nessi M., Paoloni A., Pari M., Parozzi E.G., Pasqualini L., Paternoster G., Patrizii L., Prest M., Pupilli F., Radicioni E., Riccio C., Ruggieri A.C., Scian C., Sirri G., Soldani M., Stipcevic M., Tenti M., Terranova F., Torti M., Vallazza E., Velotti F., Vesco M., and Votano L.
Subjects: Nuclear and High Energy Physics, CERN Lab, Physics::Instrumentation and Detectors, scintillation counter: plastics, Scintillator, 01 natural sciences, 7. Clean energy, Neutrino, Silicon PhotoMultiplier, calorimeter, shashlik, 030218 nuclear medicine & medical imaging, Nuclear physics, 03 medical and health sciences, 0302 clinical medicine, Silicon photomultiplier, Pion, n: irradiation, 0103 physical sciences, Particle detectors, SiPM, photomultiplier: silicon, Neutron, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation, Physics, Large Hadron Collider, Calorimeter (particle physics), 010308 nuclear & particles physics, Neutrino, Silicon PhotoMultiplier, calorimeter, shashlik, neutrino: particle source, neutrino, photomultipliers, tagged beam, monitoring, Silicon Photomultipliers Tagger Neutrino Beams Calorimeter, High Energy Physics::Experiment, performance, Shashlik
Abstract: The goal of the ENUBET project is to demonstrate that a precision of ∼ 1 % on measurement of the absolute neutrino cross section at GeV scale can be achieved by monitoring the positron production in the decay tunnel coming from the three-body semileptonic decays of kaons. The baseline option for the tunnel instrumentation employs a fine-grained shashlik calorimeter with a 4.3 X0 longitudinal segmentation to separate positrons and pions coming from other decay modes of kaons. The system is complemented by rings of plastic scintillator doublets below the calorimeter acting as a photon veto to suppress the π 0 background and to provide timing informations. SiPMs instrumenting the detector will be exposed to sizeble amounts of neutrons arising in hadronic showers. In order to reproduce such a working environment, SiPMs with different cell size (from 12 to 20 μ m ) were irradiated at the INFN-LNL CN Van Der Graaf with neutron fluences up to 2 × 10 11 n/cm2 (1 MeV-eq.). The exposed light sensors were characterized in terms of I–V curves at different irradiation levels, and their response tested by exposing a prototype on beam at CERN. In this contribution we will report the results of the described tests on SiPMs, together with the advances in their integration with the ENUBET detectors.
Published: 2020

17. A high precision narrow-band neutrino beam: The ENUBET project

Author: M. Mezzetto, F. Dal Corso, Francesco Velotti, C. Jollet, Maurizio Bonesini, M. Prest, E. Conti, L. Magaletti, Yu.A. Kudenko, M. Vesco, C. Riccio, M. Torti, A. Falcone, Giovanni Paternoster, M. Tenti, Verena Kain, L. Ludovici, G. De Rosa, Marzio Nessi, Gregorio Antonio Brunetti, Alan Cosimo Ruggeri, V. Mascagna, Nikolaos Charitonidis, L. Pasqualini, L. Patrizii, G. Mandrioli, B. Klicek, M. G. Catanesi, Claudia Brizzolari, E. Vallazza, N. Mauri, E. Lutsenko, A. Meregaglia, Sara Carturan, A. Branca, Anselmo Margotti, Carlo Scian, Silvia Capelli, E. Radicioni, Alessandro Berra, S. Cecchini, G. Sirri, F. Terranova, G. Collazuol, Mario Stipčević, F. Pupilli, Alberto Gola, L. Votano, Federico Cindolo, C. Delogu, Marco Calviani, F. Acerbi, M. Pozzato, Marco Laveder, A. Longhin, Michelangelo Pari, L. Meazza, Alessandro Paoloni, E. Parozzi, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Torti, M, Acerbi, F, Berra, A, Bonesini, M, Branca, A, Brizzolari, C, Brunetti, G, Calviani, M, Capelli, S, Carturan, S, Catanesi, M, Charitonidis, N, Cecchini, S, Cindolo, F, Collazuol, G, Conti, E, Dal Corso, F, Delogu, C, De Rosa, G, Falcone, A, Gola, A, Jollet, C, Kain, V, Klicek, B, Kudenko, Y, Laveder, M, Longhin, A, Ludovici, L, Lutsenko, E, Magaletti, L, Mandrioli, G, Margotti, A, Mascagna, V, Mauri, N, Meazza, L, Meregaglia, A, Mezzetto, M, Nessi, M, Paoloni, A, Pari, M, Parozzi, E, Pasqualini, L, Paternoster, G, Patrizii, L, Pozzato, M, Prest, M, Pupilli, F, Radicioni, E, Riccio, C, Ruggeri, A, Scian, C, Sirri, G, Stipcevic, M, Tenti, M, Terranova, F, Vallazza, E, Velotti, F, Vesco, M, Votano, L, Torti, M., Acerbi, F., Berra, A., Bonesini, M., Branca, A., Brizzolari, C., Brunetti, G., Calviani, M., Capelli, S., Carturan, S., Catanesi, M. G., Charitonidis, N., Cecchini, S., Cindolo, F., Collazuol, G., Conti, E., Dal Corso, F., Delogu, C., De Rosa, G., Falcone, A., Gola, A., Jollet, C., Kain, V., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Lutsenko, E., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meazza, L., Meregaglia, A., Mezzetto, M., Nessi, M., Paoloni, A., Pari, M., Parozzi, E. G., Pasqualini, L., Paternoster, G., Patrizii, L., Pozzato, M., Prest, M., Pupilli, F., Radicioni, E., Riccio, C., Ruggeri, A. C., Scian, C., Sirri, G., Stipcevic, M., Tenti, M., Terranova, F., Vallazza, E., Velotti, F., Vesco, M., and Votano, L.
Subjects: Nuclear and High Energy Physics, Meson, beam monitoring, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Hadron, neutrino/mu: flux, beam transport, neutrino: beam, 01 natural sciences, 7. Clean energy, Particle detector, Nuclear physics, meson: secondary, neutrino beam, 29.40.-n, 0103 physical sciences, Neutrino, calorimeter, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Neutrinos, 010306 general physics, activity report, Physics, Muon, Large Hadron Collider, 010308 nuclear & particles physics, neutrino: energy spectrum, Detector, High Energy Physics::Phenomenology, ENUBET, 29.90.+r, Astronomy and Astrophysics, neutrino: particle source, beam focusing, positron: detector, Atomic and Molecular Physics, and Optics, neutrino/e: flux, Physics::Accelerator Physics, High Energy Physics::Experiment, performance, Lepton
Abstract: The knowledge of the initial flux, energy and flavor of current neutrino beams is the main limitation for a precise measurement of neutrino cross-sections. The ENUBET ERC project is studying a facility based on a narrow-band neutrino beam capable of constraining the neutrino fluxes normalization through the monitoring of the associated charged leptons in an instrumented decay tunnel. In ENUBET, the identification of large-angle positrons from [Formula: see text] decays at single particle level can potentially reduce the [Formula: see text] flux uncertainty at the level of 1%. This setup would allow for an unprecedented measurement of the [Formula: see text] cross-section at the GeV scale. This input would be highly beneficial to reduce the budget of systematic uncertainties in the next long baseline oscillation projects. Furthermore, in narrow-band beams, the transverse position of the neutrino interaction at the detector can be exploited to determine a priori with significant precision the neutrino energy spectrum without relying on the final state reconstruction. This contribution will present the advances in the design and simulation of the hadronic beam line. Special emphasis will be given to a static focusing system of secondary mesons that can be coupled to a slow extraction proton scheme. The consequent reduction of particle rates and pile-up effects makes the determination of the [Formula: see text] flux through a direct monitoring of muons after the hadron dump viable, and paves the way to a time-tagged neutrino beam. Time-coincidences among the lepton at the source and the neutrino at the detector would enable an unprecedented purity and the possibility to reconstruct the neutrino kinematics at source on an event-by-event basis. We will also present the performance of positron tagger prototypes tested at CERN beamlines, a full simulation of the positron reconstruction chain and the expected physics reach of ENUBET.
Published: 2020
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18. Generating ultra-dense pair beams using 400 GeV/c protons

Author: C. D. Arrowsmith, Nitin Shukla, Raoul Trines, L. O. Silva, P. Simon, Brian Reville, Jessica Shaw, Robert Bingham, Subir Sarkar, Yacine Kadi, A. Dyson, B. T. Huffman, Nikolaos Charitonidis, T. Davenne, R. Boni, H. Chen, D.H. Froula, Jon Tomas Gudmundsson, S. Richardson, and Gianluca Gregori
Subjects: Astrophysics and Astronomy, Monte Carlo method, Hadron, Other Fields of Physics, FOS: Physical sciences, Radiation, 01 natural sciences, Instability, Nuclear physics, High Energy Physics - Phenomenology (hep-ph), physics.plasm-ph, 0103 physical sciences, 010306 general physics, 010303 astronomy & astrophysics, QC, Particle Physics - Phenomenology, Physics, astro-ph.HE, High Energy Astrophysical Phenomena (astro-ph.HE), Large Hadron Collider, hep-ph, Plasma, Physics - Plasma Physics, Magnetic field, Plasma Physics (physics.plasm-ph), High Energy Physics - Phenomenology, Physics::Accelerator Physics, Astrophysics - High Energy Astrophysical Phenomena, Beam (structure)
Abstract: An experimental scheme is presented for generating low-divergence, ultradense, relativistic, electron-positron beams using 400 GeV/c protons available at facilities such as HiRadMat and AWAKE at CERN. Preliminary Monte Carlo and particle-in-cell simulations demonstrate the possibility of generating beams containing 1013–1014 electron-positron pairs at sufficiently high densities to drive collisionless beam-plasma instabilities, which are expected to play an important role in magnetic field generation and the related radiation signatures of relativistic astrophysical phenomena. The pair beams are quasineutral, with size exceeding several skin depths in all dimensions, allowing the examination of the effect of competition between transverse and longitudinal instability modes on the growth of magnetic fields. Furthermore, the presented scheme allows for the possibility of controlling the relative density of hadrons to electron-positron pairs in the beam, making it possible to explore the parameter spaces for different astrophysical environments. A previously unexplored experimental scheme is presented for generating low-divergence, ultra-dense, relativistic, electron-positron beams using 400 GeV/c protons available at facilities such as HiRadMat and AWAKE at CERN. Preliminary Monte-Carlo and Particle-in-cell simulations demonstrate the possibility of generating beams containing $10^{13}-10^{14}$ electron-positron pairs at sufficiently high densities to drive collisionless beam-plasma instabilities, which are expected to play an important role in magnetic field generation and the related radiation signatures of relativistic astrophysical phenomena. The pair beams are quasi-neutral, with size exceeding several skin-depths in all dimensions, allowing for the first time the examination of the effect of competition between transverse and longitudinal instability modes on the growth of magnetic fields. Furthermore, the presented scheme allows for the possibility of controlling the relative density of hadrons to electron-positron pairs in the beam, making it possible to explore the parameter spaces for different astrophysical environments.
Published: 2020
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19. The New CERN Low-energy Facilities for Neutrino Detector Tests

Author: Johannes Bernhard, M. Brugger, Marcel Rosenthal, G. L. D’ Alessandro, M. Van Dijk, Eva Montbarbon, Nikolaos Charitonidis, B.M. Veit, Alexander Gerbershagen, L. Gatignon, Dipanwita Banerjee, Bastien Rae, and P. Chatzidaki
Subjects: Physics, History, Large Hadron Collider, Physics::Instrumentation and Detectors, Computer Science::Information Retrieval, Astrophysics::High Energy Astrophysical Phenomena, Computer Science Applications, Education, Nuclear physics, Low energy, Neutrino detector, Physics::Accelerator Physics, High Energy Physics::Experiment, Detectors and Experimental Techniques, Nuclear Experiment, Particle Physics - Experiment
Abstract: The beamlines at CERN’s North and East Areas offer secondary beams in a wide range of momenta between 0.5 GeV/c and 400 GeV/c for fixed-target experiments as well as for test beam campaigns with a flexible configuration and variable beam composition and intensities. Recently, two new facilities for neutrino detectors tests have been established in an extension of the CERN North Area in context of the CERN Neutrino Platform project. These new tertiary beams extend the current capabilities of the H2 and H4 beamlines towards lower momenta in the range of 0.3 GeV/c to 12 GeV/c, respectively 7 GeV/c, and currently serve the two ProtoDUNE prototype detectors. In addition, a complete overhaul of the CERN East Area is underway, which will provide secondary beams with momenta of up to 15 GeV/c (T9 beam) and 12 GeV/c (T10 beam). New beam optics and an optimised design will allow for electron, hadron and muon beams with high purity. We discuss the layout and performance of both North and East Area beamlines as well as the available infrastructure for the neutrino detector community.
Published: 2020

20. HiRadMat: A Facility Beyond the Realms of Materials Testing

Author: Yacine Kadi, A. Bouvard, Nikolaos Charitonidis, facility support teams, and F. J. Harden
Subjects: History, Materials science, 010308 nuclear & particles physics, Materials testing, Accelerators and Storage Rings, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, Computer Science Applications, Education, HiRadMat, 0103 physical sciences, Systems engineering, Physics::Accelerator Physics
Abstract: The ever-expanding requirements of high-power targets and accelerator equipment has highlighted the need for facilities capable of accommodating experiments with a diverse range of objectives. HiRadMat, a High Radiation to Materials testing facility at CERN has, throughout operation, established itself as a global user facility capable of going beyond its initial design goals. Pulsed high energy, high intensity, proton beams have been delivered to experiments ranging from materials testing, detector's prototype validation, radiation to electronics assessment and beam instrumentation. A 440 GeV/c proton beam is provided directly from the CERN SPS. Up to 288 bunches/pulse at a maximum pulse intensity of 3.5 × 1013 protons/pulse can be delivered. Through collaborative efforts, HiRadMat has developed into a state-of-the-art facility with improved in situ measurement routines, beam diagnostic systems and data acquisition techniques, offered to all users. This contribution summarises the recent experimental achievements, highlights previous facility enhancements and discusses potential future upgrades with particular focus on HiRadMat as a facility open to novel experiments.
Published: 2019

21. Studies for New Experiments at the CERN M2 Beamline within 'Physics Beyond Colliders': AMBER/COMPASS++, NA64mu, MuonE

Author: Johannes Bernhard, Dipanwita Banerjee, Bastien Rae, Gian Luigi D'Alessandro, Serhii Cholak, B.M. Veit, Eva Montbarbon, Maarten Van Dijk, Nikolaos Charitonidis, Markus Brugger, Alexander Gerbershagen, Marcel Rosenthal, and Lau Gatignon
Subjects: Particle physics, Physics - Instrumentation and Detectors, Meson, Hadron, Nuclear Theory, FOS: Physical sciences, law.invention, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pion, law, Compass, Detectors and Experimental Techniques, Collider, Nuclear Experiment, physics.ins-det, Physics, Muon, Large Hadron Collider, hep-ex, High Energy Physics::Phenomenology, Instrumentation and Detectors (physics.ins-det), Beamline, Physics::Accelerator Physics, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: The "Physics Beyond Colliders (PBC)" study explores fundamental physics opportunities at the CERN accelerator complex complementary to collider experiments. Three new collaborations aim to exploit the M2 beamline in the North Area with existing high-intensity muon and hadron beams, but also aspire to go beyond the current M2 capabilities with a RF-separated, high intensity hadron beam, under study. The AMBER/COMPASS++ collaboration proposes an ambitious program with a measurement of the proton radius with muon beams, as well as QCD-related studies from pion PDFs / Drell-Yan to cross section measurements for dark sector searches. Assuming feasibility of the RF-separated beam, the spectrum of strange mesons would enter a high precision era while kaon PDFs as well as nucleon TMDs would be accessible via Drell-Yan reactions. The NA64mu collaboration proposes to search for dark sector mediators such as a dark scalar A' or a hypothetical Z_mu using the M2 muon beam and complementing their on-going A' searches with electron beams. The MuonE collaboration intends to assess the hadronic component of the vacuum polarization via elastic mu-e scattering, the dominant uncertainty in the determination of (g-2)_mu. An overview of the three new experimental programs will be presented together with implications for the M2 beamline and the experimental area EHN2, based on the studies of the PBC "Conventional Beams" Working Group., MENU 2019 Proceedings, 7 pages
Published: 2019

22. Decay tunnel instrumentation for the ENUBET neutrino beam

Author: F. Dal Corso, E. Radicioni, Alan Cosimo Ruggeri, A. Meregaglia, G. De Rosa, A. Branca, A. Longhin, L. Ludovici, Alessandro Berra, S. Cecchini, G. Collazuol, Mario Stipčević, Marzio Nessi, M. Vesco, Michelangelo Pari, M. G. Catanesi, M. Prest, M. Pozzato, V. Mascagna, L. Magaletti, G. Brunetti, E. Conti, E. Vallazza, C. Brizzolari, G. Mandrioli, Marco Calviani, A. Falcone, L. Meazza, Federico Cindolo, Marco Laveder, L. Pasqualini, Nikolaos Charitonidis, Verena Kain, N. Mauri, F. Pupilli, C. Delogu, M. Mezzetto, L. Patrizii, L. Votano, Maurizio Bonesini, G. Sirri, Silvia Capelli, Francesco Velotti, Alessandro Paoloni, Yu.A. Kudenko, E. Parozzi, C. Jollet, B. Klicek, Sara Carturan, M. Tenti, E. Lutsenko, Giovanni Paternoster, F. Terranova, A. Gola, F. Acerbi, Anselmo Margotti, Carlo Scian, C. Riccio, M. Torti, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Acerbi, F., Berra, A., Bonesini, M., Branca, A., Brizzolari, C., Brunetti, G., Calviani, M., Carturan, S., Capelli, S., Catanesi, M. G., Charitonidis, N., Cecchini, S., Cindolo, F., Collazuol, G., Conti, E., Corso, F. D., De Rosa, G., Delogu, C., Falcone, A., Gola, A., Jollet, C., Kain, V., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Lutsenko, E., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meazza, L., Meregaglia, A., Mezzetto, M., Nessi, M., Pari, M., Paoloni, A., Parozzi, E., Pasqualini, L., Paternoster, G., Patrizii, L., Pozzato, M., Prest, M., Pupilli, F., Radicioni, E., Riccio, C., Ruggeri, A. C., Scian, C., Sirri, G., Stipcevic, M., Tenti, M., Terranova, F., Torti, M., Vallazza, E., Velotti, F., Vesco, M., Votano, L., Acerbi, F, Berra, A, Bonesini, M, Branca, A, Brizzolari, C, Brunetti, G, Calviani, M, Carturan, S, Capelli, S, Catanesi, M, Charitonidis, N, Cecchini, S, Cindolo, F, Collazuol, G, Conti, E, Corso, F, Rosa, G, Delogu, C, Falcone, A, Gola, A, Jollet, C, Kain, V, Klicek, B, Kudenko, Y, Laveder, M, Longhin, A, Ludovici, L, Lutsenko, E, Magaletti, L, Mandrioli, G, Margotti, A, Mascagna, V, Mauri, N, Meazza, L, Meregaglia, A, Mezzetto, M, Nessi, M, Pari, M, Paoloni, A, Parozzi, E, Pasqualini, L, Paternoster, G, Patrizii, L, Pozzato, M, Prest, M, Pupilli, F, Radicioni, E, Riccio, C, Ruggeri, A, Scian, C, Sirri, G, Stipcevic, M, Tenti, M, Terranova, F, Torti, M, Vallazza, E, Velotti, F, Vesco, M, and Votano, L
Subjects: Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, 7. Clean energy, 01 natural sciences, neutrino: flux, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment, Neutrino detector, High Energy Physics - Experiment (hep-ex), Particle identification methods, 0302 clinical medicine, iron, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], beam-intensity monitors, Neutrino detectors, Detectors and Experimental Techniques, Instrumentation, physics.ins-det, Mathematical Physics, beam-intensity monitor, radiation: damage, Physics, wavelength shifter: fibre, Large Hadron Collider, Instrumentation and Detectors (physics.ins-det), K: decay, Calorimeter, Beam-line instrumentation (beam position and profile monitor, bunch length monitors), Neutrino, Particle Physics - Experiment, Shashlik, CERN Lab, Beam-line instrumentation (beam position and profile monitors, FOS: Physical sciences, Scintillator, 03 medical and health sciences, Calorimeters, Silicon photomultiplier, Optics, Beam-line instrumentation (beam position and profile monitors bunch length monitors), 0103 physical sciences, photomultiplier: silicon, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], scintillation counter, activity report, 010308 nuclear & particles physics, business.industry, hep-ex, calorimeter: design, monitoring, High Energy Physics::Experiment, business, particle identification, neutrino/e: particle source, Beam (structure)
Abstract: The uncertainty in the initial neutrino flux is the main limitation for a precise determination of the absolute neutrino cross section. The ERC funded ENUBET project (2016-2021) is studying a facility based on a narrow band beam to produce an intense source of electron neutrinos with a ten-fold improvement in accuracy. Since March 2019 ENUBET is also a Neutrino Platform experiment at CERN: NP06/ENUBET. A key element of the project is the instrumentation of the decay tunnel to monitor large angle positrons produced together with $\nu_e$ in the three body decays of kaons ($K_{e3}$) and to discriminate them from neutral and charged pions. The need for an efficient and high purity e/$\pi$ separation over a length of several meters, and the requirements for fast response and radiation hardness imposed by the harsh beam environment, suggested the implementation of a longitudinally segmented Fe/scintillator calorimeter with a readout based on WLS fibers and SiPM detectors. An extensive experimental program through several test beam campaigns at the CERN-PS T9 beam line has been pursued on calorimeter prototypes, both with a shashlik and a lateral readout configuration. The latter, in which fibers collect the light from the side of the scintillator tiles, allows to place the light sensors away from the core of the calorimeter, thus reducing possible irradiation damages with respect to the shashlik design. This contribution will present the achievements of the prototyping activities carried out, together with irradiation tests made on the Silicon Photo-Multipliers. The results achieved so far pin down the technology of choice for the construction of the 3 m long demonstrator that will take data in 2021., Comment: Talk presented at the "15th Topical Seminar on Innovative Particle and Radiation Detectors (IPRD19)", 14-17 October 2019. Siena, Italy. 9 pages, 7 figures
Published: 2019

23. Proton irradiation effects in Molybdenum-Carbide-Graphite composites

Author: Zhong Zhong, Nikolaos Charitonidis, Nikolaos Simos, Z. Kotsina, Stefano Redaelli, J. Guardia-Valenzuela, E. Quaranta, C. Accettura, P. Simon, Sanjit Ghose, David J. Sprouster, M. Whitaker, Alessandro Bertarelli, and H. Zhong
Subjects: Diffraction, Nuclear and High Energy Physics, Titanium carbide, Materials science, Proton, High Luminosity Large Hadron Collider, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, 010305 fluids & plasmas, chemistry.chemical_compound, Nuclear Energy and Engineering, chemistry, 0103 physical sciences, Radiation damage, General Materials Science, Graphite, Irradiation, Composite material, 0210 nano-technology, Beam (structure)
Abstract: The High Luminosity upgrade of the Large Hadron Collider (HL-LHC) has prompted the investigation of novel materials for beam-intercepting devices, and in particular for the collimators responsible for protecting the machine from beam losses. The HL-LHC collimation system will inevitably experience increased levels of radiation damage and undergo changes in their crucial physio-mechanical properties. Graphite-matrix composite materials containing molybdenum carbide particles, along with small amounts of titanium carbide, were developed with the objective of enhanced in-beam performance and tested under proton irradiation. The physical degradation observed in early grades of molybdenum carbide compounds, even after modest proton fluences, has prompted the development of advanced compounds. In this work, we examine the effects of proton irradiation on the microstructural and thermophysical properties of new grades of Molybdenum-carbide-graphite compounds up to fluences of ~2 × 1020 p/cm2. We employ a combination of precision dilatometry and high-energy X-ray diffraction to quantify the dimensional stability and crystallographic phase evolution both pre- and post-irradiation. Our results reveal that these new compounds exhibit superior resilience to radiation damage than their predecessors.
Published: 2021

24. Dark Matter Search in Missing Energy Events with NA64

Author: V.A. Polyakov, L. Molina Bueno, B. Radics, D. V. Kirpichnikov, A. Feshchenko, Vladimir Frolov, V.E. Burtsev, A. N. Toropin, G. Vasquez Arenas, R.R. Dusaev, V. A. Matveev, Rimsky Alejandro Rojas, B.I. Vasilishin, Dipanwita Banerjee, B. Ketzer, Nikolaos Charitonidis, A. Yu. Trifonov, A.G. Chumakov, A. V. Dermenev, Igor Konorov, P. Ulloa, S. Gerassimov, M. Kirsanov, Petr Volkov, Serguei Kuleshov, G. D. Kekelidze, V. M. Lysan, Paolo Crivelli, S. V. Donskov, V.D. Samoylenko, A. E. Karneyeu, David R. Cooke, V. O. Tikhomirov, N. V. Krasnikov, Sergey Kovalenko, L. Kravchuk, D. A. Tlisov, V. Yu. Volkov, S. N. Gninenko, E. Depero, M. Hösgen, M. Jeckel, V. A. Kramarenko, I. Tlisova, D. Shchukin, A. Gardikiotis, Yu. V. Mikhailov, D. Peshekhonov, V. E. Lyubovitskij, T. Enik, and André Rubbia
Subjects: Particle physics, Photon, Dark matter, Scalar (mathematics), General Physics and Astronomy, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, Computer Science::Digital Libraries, Dark photon, law.invention, Vector boson, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), law, 0103 physical sciences, Beam dump, 010306 general physics, Particle Physics - Phenomenology, Physics, Missing energy, Large Hadron Collider, hep-ex, hep-ph, ddc, High Energy Physics - Phenomenology, Physics::Accelerator Physics, Particle Physics - Experiment
Abstract: A search for sub-GeV dark matter production mediated by a new vector boson $A'$, called dark photon, is performed by the NA64 experiment in missing energy events from 100 GeV electron interactions in an active beam dump at the CERN SPS. From the analysis of the data collected in the years 2016, 2017, and 2018 with $2.84\times10^{11}$ electrons on target no evidence of such a process has been found. The most stringent constraints on the $A'$ mixing strength with photons and the parameter space for the scalar and fermionic dark matter in the mass range $\lesssim 0.2$ GeV are derived, thus demonstrating the power of the active beam dump approach for the dark matter search., 6 pages, 4 figures, version accepted for publication in Phys. Rev. Lett. arXiv admin note: text overlap with arXiv:1710.00971, arXiv:1610.02988
Published: 2019

25. Status of the ENUBET Project

Author: A. Meregaglia, A. Longhin, Marco Calviani, Simone Capelli, Michelangelo Pari, L. Ludovici, C. Riccio, M. Torti, N. Mauri, F. Dal Corso, F. Pupilli, M. Tenti, Fabio Acerbi, E. Radicioni, L. Meazza, Nikolaos Charitonidis, Sara Carturan, A. Branca, Alan Cosimo Ruggeri, V. Kein, Marco Laveder, Alessandro Paoloni, Giovanni Paternoster, R. A. Intonti, E. Conti, Marzio Nessi, Gregorio Antonio Brunetti, E. Parozzi, Carlo Scian, E. Vallazza, G. De Rosa, L. Pasqualini, A. Falcone, L. Patrizii, G. Mandrioli, M. Prest, Maurizio Bonesini, Alessandro Berra, S. Cecchini, M. G. Catanesi, M. Soldani, M. Mezzetto, G. Ballerini, Francesco Velotti, G. Sirri, F. Terranova, Yu. Kudenko, Valerio Mascagna, Claudia Brizzolari, Anselmo Margotti, Federico Cindolo, Alberto Gola, L. Votano, M. Vesco, B. Klicek, E. Lutsenko, G. Collazuol, Mario Stipčević, L. Magaletti, C. Delogu, M. Pozzato, C. Jollet, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ENUBET, Terranova, F, Acerbi, F, Ballerini, G, Berra, A, Bonesini, M, Branca, A, Brizzolari, C, Brunetti, G, Calviani, M, Capelli, S, Carturan, S, Catanesi, M, Cecchini, S, Charitonidis, N, Cindolo, F, Collazuol, G, Conti, E, Dal Corso, F, De Rosa, G, Delogu, C, Falcone, A, Gola, A, Intonti, R, Jollet, C, Kein, V, Klicek, B, Kudenko, Y, Laveder, M, Longhin, A, Lutsenko, E, Ludovici, L, Magaletti, L, Mandrioli, G, Margotti, A, Mascagna, V, Mauri, N, Meazza, L, Meregaglia, A, Mezzetto, M, Nessi, M, Paoloni, A, Pari, M, Parozzi, E, Pasqualini, L, Paternoster, G, Patrizii, L, Pozzato, M, Prest, M, Pupilli, F, Radicioni, E, Riccio, C, Ruggeri, A, Scian, C, Sirri, G, Soldani, M, Stipcevic, M, Tenti, M, Torti, M, Vallazza, E, Velotti, F, Vesco, M, and Votano, L
Subjects: beam monitoring, Astrophysics::High Energy Astrophysical Phenomena, measurement methods, neutrino: beam, beam transport, Neutrino beam, 7. Clean energy, Particle identification, neutrino: flux, Nuclear physics, Positron, K: semileptonic decay, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, activity report, Physics, High Energy Physics::Phenomenology, Test beam, Beamline, Physics::Accelerator Physics, Production (computer science), High Energy Physics::Experiment, Neutrino, particle identification, performance, Lepton
Abstract: The ENUBET project is studying a narrow band neutrino beam where lepton production can be monitored at single particle level in an instrumented decay tunnel and that could provide a 1% measurement of the neutrino flux at source. The three body semi-leptonic decay of kaons monitored by large angle positron production offers a fully controlled $\nu_{e}$ source at the GeV scale for a new generation of short baseline experiments. The ENUBET Collaboration presented at NuFact2018 the first end-to-end simulation of the beamline, the physics performance and the results of the test beam performed on the positron tagger. We reported ENUBET expected fluxes for $\nu_{e}$ and $\nu_{\mu}$
Published: 2019

26. Commissioning results of the tertiary beam lines for the CERN neutrino platform project

Author: I. Ortega Ruiz, Y. Karyotakis, A. Booth, P. Chatzidaki, Paola Sala, E. Nowak, Nikolaos Charitonidis, Marcel Rosenthal, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and Laboratoire d'Annecy de Physique des Particules (LAPP)
Subjects: History, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], beam transport, 01 natural sciences, 7. Clean energy, Particle identification, Education, target, Nuclear physics, 0103 physical sciences, 010306 general physics, numerical calculations, Physics, Range (particle radiation), Large Hadron Collider, experiment, 010308 nuclear & particles physics, MMI, CERN SPS, simulation, Accelerators and Storage Rings, Super Proton Synchrotron, Charged particle, Computer Science Applications, beam dynamics: transverse, Beamline, Physics::Accelerator Physics, positron, Neutrino, particle identification, Beam (structure), performance
Abstract: For many decades the CERN North Area facility at the Super Proton Synchrotron (SPS) has delivered secondary beams to various fixed target experiments and test beams. In 2018, two new tertiary extensions of the existing beam lines, designated “H2-VLE” and “H4-VLE”, have been constructed and successfully commissioned. These beam lines have been designed to provide charged particles of both polarities in the momentum range from 0.3GeV/c to 12GeV/c. During the design phase, multiple simulation tools and techniques have been employed to optimize the tertiary beam line layout in terms of particle production, transverse beam dynamics and particle identification on an event-by-event basis. In this paper, a comparison of the simulated performance and the first measurement results obtained during the commissioning phase are presented.
Published: 2019

27. Particle identification in the low-GeV/c regime using Octafluoropropane (R-218) as Cherenkov radiator

Author: Marcel Rosenthal, Nikolaos Charitonidis, Y. Karyotakis, P. Chatzidaki, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and Laboratoire d'Annecy de Physique des Particules (LAPP)
Subjects: Nuclear and High Energy Physics, Octafluoropropane, Physics::Instrumentation and Detectors, Phase (waves), Refractive index, 01 natural sciences, Particle identification, 010309 optics, chemistry.chemical_compound, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Radiating gas, 010306 general physics, Instrumentation, Cherenkov radiation, Low-energy beams, Physics, Detector, Charged particle, Computational physics, Threshold Cherenkov detectors, chemistry, R-218, 13. Climate action, Radiator (engine cooling)
Abstract: International audience; Particle identification with threshold Cherenkov detectors, using a moderately pressurized radiating gas with an adequate refractive index, is one of the most common techniques employed in high-energy physics. However, available gases with relatively high refractive indices, that simultaneously preserve their gaseous phase at room temperature and moderate pressures, are rare. Until recently, R-12 (Freon-12) was broadly used, but to date, it is generally unavailable due to its high global warming potential. In this work, we present an estimation of the refractive index of an alternative gas, Octafluoropropane (R-218), and we explore its feasibility as a Cherenkov radiator, for tagging charged particles at momenta as low as 2 GeV/c.
Published: 2019

28. The experimental facility for the Search for Hidden Particles at the CERN SPS

Author: I. W. Harris, S. Gorbunov, Sergey Kovalenko, C. Ahdida, Karel Cornelis, A. Iuliano, Annarita Buonaura, C. Hessler, A. Berdnikov, S. Simone, Christopher Betancourt, Pavel Shatalov, Yu. Mikhaylov, Dmitry Golubkov, A. Calcaterra, W. Schmidt-Parzefall, D. Bick, R. Froeschl, A. U. Yilmazer, A. K. Managadze, Adrian Fabich, Yu. Guz, M. Rinaldesi, J. Boehm, A. Crupano, Rainer Wanke, D. Joković, L. A. Dougherty, P. Santos Diaz, Andrea Prota, D. Sukhonos, Helmut Vincke, L. Stoel, L. Lopes, Volker Büscher, Alessandro Paoloni, Philippe Mermod, S. Vilchinski, P. Ninin, Andrea Miano, Giuseppe D'Appollonio, Claudio O. Dib, V. M. Grachev, Akira Nishio, K. S. Lee, Alexey A. Petrov, E. V. Atkin, L. Gatignon, B. Hosseini, V. Ivantchenko, Alexander Malinin, Vadim Kostyukhin, B. D. Park, A. Bay, F. Baaltasar Dos Santos, S. Mikado, Mike Lamont, Heiko Lacker, Natalia Polukhina, M. De Serio, I. Krasilnikova, Nicolò Tosi, Kyrylo Bondarenko, Mikhail Shaposhnikov, L. G. Dedenko, Hiroki Rokujo, M. M. Khabibullin, F. Bardou, Oksana Shadura, A. Bagulya, D. Pereyma, L. Golinka-Bezshyyko, A. Golutvin, Dmitry Gorbunov, M. Ferro-Luzzi, A. Blanco, P. Fonte, H. Shibuya, Richard Jacobsson, Toshiyuki Nakano, G. De Lellis, K. Filippov, E. Khalikov, Victor Kim, Volodymyr M. Gorkavenko, Gianluigi Arduini, S. Movchan, G. Gavrilov, Oleg Mineev, Satoru Takahashi, Raffaele Fresa, W. Bonivento, Alexander Mclean Marshall, S. van Waasen, V. Bayliss, Kunihiro Morishima, Osamu Sato, I. Kadenko, Oleg Ruchayskiy, Yuki Manabe, Sergey E. Ulin, N. Kondrateva, Adele Lauria, D. Kolev, Ciro Visone, Maksym Ovchynnikov, A. Pastore, J.-K. Woo, C. Kamiscioglu, G. Rosa, A. Korzenev, Sandro Cadeddu, T. Ruf, T. Shchedrina, Mario Campanelli, Nobuko Kitagawa, N. Di Marco, Yosuke Suzuki, E. Lopez Sola, Marco Calviani, A. De Roeck, S. Nasybulin, C. S. Yoon, J. Y. Sohn, Yu. Zaytsev, Tiziano Rovelli, M. Chernyavskiy, Verena Kain, S. Than Naing, O. Lantwin, G. M. Dallavalle, G. Lanfranchi, Mikhail V. Gorshenkov, P. Venkova, G. Granich, J. L. Tastet, Lesya Shchutska, Nikolaos Charitonidis, J.-M. Lévy, Vladimir Samsonov, J. De Carvalho Saraiva, Stefano Sgobba, N. Owtscharenko, Inar Timiryasov, D. Breton, A. Golovatiuk, J.-W. Ko, Nicola Serra, A. A. Rademakers, S. Bieschke, V. Drohan, Giuliana Galati, G. Haefeli, J. Bauche, P. Chau, Volodymyr Rodin, A. Sanz Ull, Nicola D'Ambrosio, K.-Y. Choi, I. Berezkina, M. Casolino, S. Buontempo, A.S. Novikov, J. Ebert, E. Koukovini Platia, John Osborne, Victor Maleev, Kang Young Lee, T. Fukuda, H. Hakobyan, Richard Brenner, P. Dergachev, A.B. Rodrigues Cavalcante, Anne-Marie Magnan, Mitsuhiro Nakamura, Z. M. Uteshev, Maria Cristina Montesi, K. Kodama, A. S. Chepurnov, A.V. Etenko, Matthew Fraser, F. Vannucci, S. Ricciardi, P. Wertelaers, G. L. Petkov, Fedor Ratnikov, V. Venturi, Y. Berdnikov, Valeri Tioukov, Samuel Silverstein, B. Storaci, J. Maalmi, A. Saputi, P. Dipinto, Alessandro Montanari, E. S. Savchenko, R. A. Fini, M. de Magistris, Andrey Ustyuzhanin, B. Opitz, Konstantinos Petridis, M. Bogomilov, I. Korol’ko, Brennan Goddard, Markus Cristinziani, Stefania Xella, Patrick Owen, David Milstead, Antonio Perillo-Marcone, Alexander E. Shustov, A. M. Guler, M. Torii, E. van Herwijnen, Gareth J. Barker, Seok Kim, Hans Dijkstra, A. Mefodev, D. Yilmaz, Sung Keun Park, T. Enik, I. Zarubina, D. Domenici, E. Kurbatov, S. Dmitrievskiy, S. Kormannshaus, K. Kershaw, Valery V. Dmitrenko, A. L. Grandchamp, P. Kurbatov, Davide Tommasini, R. Brundler, A. Alexandrov, Patrick Robbe, A. Hollnagel, V. P. Loschiavo, D. Grenier, Ekaterina Kuznetsova, Maria Elena Stramaglia, A. Sokolenko, Yuri Gornushkin, P. Pacholek, Oleg Fedin, Mauro Villa, P. Zarubin, V. Gentile, Rocco Paparella, M. Bertani, Serge Smirnov, V. Poliakov, C. Franco, T. Rawlings, D. De Simone, Caren Hagner, Arnaud Dubreuil, D. A. Podgrudkov, B. Obinyakov, V.D. Samoylenko, P. Teterin, F. Sanchez Galan, Laura Fabbri, Yu. G. Kudenko, Mikhail Hushchyn, V. Shevchenko, M. Manfredi, Alexander E. Volkov, Iaroslava Bezshyiko, Daniel Treille, R. Tsenov, J. Prieto Prieto, G. Khoriauli, N. Konovalova, Heinz Vincke, Konstantin F. Vlasik, M. Jonker, V. Kolosov, V. E. Lyubovitskij, S. V. Donskov, A. Rakai, N. I. Starkov, Y. Muttoni, F. Redi, G. Bencivenni, J. Gall, A. Khotyantsev, T. M. Roganova, F. L. Fabbri, A. Quercia, E. Solodko, A. Datwyler, N. Azorskiy, R. Voronkov, Oleg Bezshyyko, G. Felici, J. Chauveau, Yeong Gyun Kim, John Back, Raffaele Albanese, S. Shirobokov, Shigeki Aoki, V. Grichine, A. Kono, N. Gruzinskii, J. Borburgh, A. Kolesnikov, G. Vankova-Kirilova, Masahiro Komatsu, G. Khaustov, A. Chumakov, M. D. Skorokhvatov, Michael Wurm, A. Dolmatov, Viktor Rodin, M. Prokudin, S. Marsh, S. Ogawa, M. Battistin, Marco Bruschi, N. Okateva, A. Di Crescenzo, I. Korol, Alexey Boyarsky, Naotaka Naganawa, J.-L. Grenard, Rosa Simoniello, Paolo Ciambrone, A. M. Anokhina, M. Patel, Petr Andreevich Gorbounov, Giuseppe Iaselli, V. Kurochka, Elena Graverini, Alexander Baranov, A. Shakin, F. Fedotovs, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), SHiP, Ahdida, C., Albanese, R., Alexandrov, A., Anokhina, A., Aoki, S., Arduini, G., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Santos, F. Baaltasar Do, Baranov, A., Bardou, F., Barker, G. J., Battistin, M., Bauche, J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Berezkina, I., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Bondarenko, K., Bonivento, W. M., Borburgh, J., Boyarsky, A., Brenner, R., Breton, D., Brundler, R., Bruschi, M., Büscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Calviani, M., Campanelli, M., Casolino, M., Charitonidis, N., Chau, P., Chauveau, J., Chepurnov, A., Chernyavskiy, M., Choi, K. -Y., Chumakov, A., Ciambrone, P., Cornelis, K., Cristinziani, M., Crupano, A., Dallavalle, G. M., Datwyler, A., D'Ambrosio, N., D'Appollonio, G., Saraiva, J. De Carvalho, Lellis, G. De, de Magistris, M., Roeck, A. De, Serio, M. De, Simone, D. De, Dedenko, L., Dergachev, P., Crescenzo, A. Di, Marco, N. Di, Dib, C., Dijkstra, H., Dipinto, P., Dmitrenko, V., Dmitrievskiy, S., Dougherty, L. A., Dolmatov, A., Domenici, D., Donskov, S., Drohan, V., Dubreuil, A., Ebert, J., Enik, T., Etenko, A., Fabbri, F., Fabbri, L., Fabich, A., Fedin, O., Fedotovs, F., Felici, G., Ferro-Luzzi, M., Filippov, K., Fini, R. A., Fonte, P., Franco, C., Fraser, M., Fresa, R., Froeschl, R., Fukuda, T., Galati, G., Gall, J., Gatignon, L., Gavrilov, G., Gentile, V., Goddard, B., Golinka-Bezshyyko, L., Golovatiuk, A., Golubkov, D., Golutvin, A., Gorbounov, P., Gorbunov, D., Gorbunov, S., Gorkavenko, V., Gornushkin, Y., Gorshenkov, M., Grachev, V., Grandchamp, A. L., Granich, G., Graverini, E., Grenard, J. -L., Grenier, D., Grichine, V., Gruzinskii, N., Guler, A. M., Guz, Yu., Haefeli, G. J., Hagner, C., Hakobyan, H., Harris, I. W., Herwijnen, E. van, Hessler, C., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, A., Ivantchenko, V., Jacobsson, R., Joković, D., Jonker, M., Kadenko, I., Kain, V., Kamiscioglu, C., Kershaw, K., Khabibullin, M., Khalikov, E., Khaustov, G., Khoriauli, G., Khotyantsev, A., Kim, S. H., Kim, Y. G., Kim, V., Kitagawa, N., Ko, J. -W., Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Kondrateva, N., Kono, A., Konovalova, N., Kormannshaus, S., Korol, I., Korol'Ko, I., Korzenev, A., Kostyukhin, V., Platia, E. Koukovini, Kovalenko, S., Krasilnikova, I., Kudenko, Y., Kurbatov, E., Kurbatov, P., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lamont, M., Lanfranchi, G., Lantwin, O., Lauria, A., Lee, K. S., Lee, K. Y., Lévy, J. -M., Loschiavo, V. P., Lopes, L., Sola, E. Lopez, Lyubovitskij, V., Maalmi, J., Magnan, A., Maleev, V., Malinin, A., Manabe, Y., Managadze, A. K., Manfredi, M., Marsh, S., Marshall, A. M., Mefodev, A., Mermod, P., Miano, A., Mikado, S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Montanari, A., Montesi, M. C., Morishima, K., Movchan, S., Muttoni, Y., Naganawa, N., Nakamura, M., Nakano, T., Nasybulin, S., Ninin, P., Nishio, A., Novikov, A., Obinyakov, B., Ogawa, S., Okateva, N., Opitz, B., Osborne, J., Ovchynnikov, M., Owtscharenko, N., Owen, P. H., Pacholek, P., Paoloni, A., Paparella, R., Park, B. D., Park, S. K., Pastore, A., Patel, M., Pereyma, D., Perillo-Marcone, A., Petkov, G. L., Petridis, K., Petrov, A., Podgrudkov, D., Poliakov, V., Polukhina, N., Prieto, J. Prieto, Prokudin, M., Prota, A., Quercia, A., Rademakers, A., Rakai, A., Ratnikov, F., Rawlings, T., Redi, F., Ricciardi, S., Rinaldesi, M., Rodin, Volodymyr, Rodin, Viktor, Robbe, P., Cavalcante, A. B. Rodrigue, Roganova, T., Rokujo, H., Rosa, G., Rovelli, T., Ruchayskiy, O., Ruf, T., Samoylenko, V., Samsonov, V., Galan, F. Sanchez, Diaz, P. Santo, Ull, A. Sanz, Saputi, A., Sato, O., Savchenko, E. S., Schmidt-Parzefall, W., Serra, N., Sgobba, S., Shadura, O., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shirobokov, S., Shustov, A., Silverstein, S. B., Simone, S., Simoniello, R., Skorokhvatov, M., Smirnov, S., Sohn, J. Y., Sokolenko, A., Solodko, E., Starkov, N., Stoel, L., Storaci, B., Stramaglia, M. E., Sukhonos, D., Suzuki, Y., Takahashi, S., Tastet, J. L., Teterin, P., Naing, S. Than, Timiryasov, I., Tioukov, V., Tommasini, D., Torii, M., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., Venkova, P., Venturi, V., Vilchinski, S., Villa, M., Vincke, Heinz, Vincke, Helmut, Visone, C., Vlasik, K., Volkov, A., Voronkov, R., Waasen, S. van, Wanke, R., Wertelaers, P., Woo, J. -K., Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., Zarubin, P., Zarubina, I., Zaytsev, Yu., Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Ahdida C., Albanese R., Alexandrov A., Anokhina A., Aoki S., Arduini G., Atkin E., Azorskiy N., Back J.J., Bagulya A., Santos F.B.D., Baranov A., Bardou F., Barker G.J., Battistin M., Bauche J., Bay A., Bayliss V., Bencivenni G., Berdnikov A.Y., Berdnikov Y.A., Berezkina I., Bertani M., Betancourt C., Bezshyiko I., Bezshyyko O., Bick D., Bieschke S., Blanco A., Boehm J., Bogomilov M., Bondarenko K., Bonivento W.M., Borburgh J., Boyarsky A., Brenner R., Breton D., Brundler R., Bruschi M., Buscher V., Buonaura A., Buontempo S., Cadeddu S., Calcaterra A., Calviani M., Campanelli M., Casolino M., Charitonidis N., Chau P., Chauveau J., Chepurnov A., Chernyavskiy M., Choi K.-Y., Chumakov A., Ciambrone P., Cornelis K., Cristinziani M., Crupano A., Dallavalle G.M., Datwyler A., D'ambrosio N., D'appollonio G., Saraiva J.D.C., Lellis G.D., De Magistris M., Roeck A.D., De Serio M., De Simone D., Dedenko L., Dergachev P., Di Crescenzo A., Di Marco N., Dib C., Dijkstra H., Dipinto P., Dmitrenko V., Dmitrievskiy S., Dougherty L.A., Dolmatov A., Domenici D., Donskov S., Drohan V., Dubreuil A., Ebert J., Enik T., Etenko A., Fabbri F., Fabbri L., Fabich A., Fedin O., Fedotovs F., Felici G., Ferro-Luzzi M., Filippov K., Fini R.A., Fonte P., Franco C., Fraser M., Fresa R., Froeschl R., Fukuda T., Galati G., Gall J., Gatignon L., Gavrilov G., Gentile V., Goddard B., Golinka-Bezshyyko L., Golovatiuk A., Golubkov D., Golutvin A., Gorbounov P., Gorbunov D., Gorbunov S., Gorkavenko V., Gornushkin Y., Gorshenkov M., Grachev V., Grandchamp A.L., Granich G., Graverini E., Grenard J.-L., Grenier D., Grichine V., Gruzinskii N., Guler A.M., Guz Y., Haefeli G.J., Hagner C., Hakobyan H., Harris I.W., Van Herwijnen E., Hessler C., Hollnagel A., Hosseini B., Hushchyn M., Iaselli G., Iuliano A., Ivantchenko V., Jacobsson R., Jokovic D., Jonker M., Kadenko I., Kain V., Kamiscioglu C., Kershaw K., Khabibullin M., Khalikov E., Khaustov G., Khoriauli G., Khotyantsev A., Kim S.H., Kim Y.G., Kim V., Kitagawa N., Ko J.-W., Kodama K., Kolesnikov A., Kolev D.I., Kolosov V., Komatsu M., Kondrateva N., Kono A., Konovalova N., Kormannshaus S., Korol I., Korol'ko I., Korzenev A., Kostyukhin V., Platia E.K., Kovalenko S., Krasilnikova I., Kudenko Y., Kurbatov E., Kurbatov P., Kurochka V., Kuznetsova E., Lacker H.M., Lamont M., Lanfranchi G., Lantwin O., Lauria A., Lee K.S., Lee K.Y., Levy J.-M., Loschiavo V.P., Lopes L., Sola E.L., Lyubovitskij V., Maalmi J., Magnan A., Maleev V., Malinin A., Manabe Y., Managadze A.K., Manfredi M., Marsh S., Marshall A.M., Mefodev A., Mermod P., Miano A., Mikado S., Mikhaylov Y., Milstead D.A., Mineev O., Montanari A., Montesi M.C., Morishima K., Movchan S., Muttoni Y., Naganawa N., Nakamura M., Nakano T., Nasybulin S., Ninin P., Nishio A., Novikov A., Obinyakov B., Ogawa S., Okateva N., Opitz B., Osborne J., Ovchynnikov M., Owtscharenko N., Owen P.H., Pacholek P., Paoloni A., Paparella R., Park B.D., Park S.K., Pastore A., Patel M., Pereyma D., Perillo-Marcone A., Petkov G.L., Petridis K., Petrov A., Podgrudkov D., Poliakov V., Polukhina N., Prieto J.P., Prokudin M., Prota A., Quercia A., Rademakers A., Rakai A., Ratnikov F., Rawlings T., Redi F., Ricciardi S., Rinaldesi M., Rodin V., Robbe P., Rodrigues Cavalcante A.B., Roganova T., Rokujo H., Rosa G., Rovelli T., Ruchayskiy O., Ruf T., Samoylenko V., Samsonov V., Sanchez Galan F., Santos Diaz P., Sanz Ull A., Saputi A., Sato O., Savchenko E.S., Schmidt-Parzefall W., Serra N., Sgobba S., Shadura O., Shakin A., Shaposhnikov M., Shatalov P., Shchedrina T., Shchutska L., Shevchenko V., Shibuya H., Shirobokov S., Shustov A., Silverstein S.B., Simone S., Simoniello R., Skorokhvatov M., Smirnov S., Sohn J.Y., Sokolenko A., Solodko E., Starkov N., Stoel L., Storaci B., Stramaglia M.E., Sukhonos D., Suzuki Y., Takahashi S., Tastet J.L., Teterin P., Than Naing S., Timiryasov I., Tioukov V., Tommasini D., Torii M., Tosi N., Treille D., Tsenov R., Ulin S., Ustyuzhanin A., Uteshev Z., Vankova-Kirilova G., Vannucci F., Venkova P., Venturi V., Vilchinski S., Villa M., Vincke H., Visone C., Vlasik K., Volkov A., Voronkov R., Van Waasen S., Wanke R., Wertelaers P., Woo J.-K., Wurm M., Xella S., Yilmaz D., Yilmazer A.U., Yoon C.S., Zarubin P., Zarubina I., and Yu Zaytsev Y.
Subjects: Technology, Physics - Instrumentation and Detectors, background: induced, large detector systems for particle and astroparticle physics, SPS, beam transport, Electron, 7. Clean energy, 01 natural sciences, 09 Engineering, dark matter detectors (wimps, axions etc.), High Energy Physics - Experiment, 030218 nuclear medicine & medical imaging, law.invention, Neutrino detector, High Energy Physics - Experiment (hep-ex), 0302 clinical medicine, Recoil, law, etc.), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Neutrino detectors, Detectors and Experimental Techniques, Nuclear Experiment, physics.ins-det, Instruments & Instrumentation, Instrumentation, background: suppression, Mathematical Physics, nucleus: recoil, Physics, Range (particle radiation), tau neutrino, 02 Physical Sciences, Large Hadron Collider, beam loss, Instrumentation and Detectors (physics.ins-det), p: beam, Nuclear & Particles Physics, vacuum system, particle: interaction, Dark Matter detectors (WIMP, beam optics, p: beam dump, Physics - Instrumentation and Detector, proposed experiment, Particle Physics - Experiment, zirconium: admixture, FOS: Physical sciences, Accelerator Physics and Instrumentation, beam: ejection, p: target, Hidden Sector, Nuclear physics, KKKK: SHiP, 03 medical and health sciences, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Beam dump, numerical calculations, muon: shielding, detector: design, activity report, Dark Matter detectors (WIMPs, Science & Technology, hep-ex, 010308 nuclear & particles physics, Large detector systems for particle and astroparticle physics, beam-dump facility, Acceleratorfysik och instrumentering, CERN SPS, Hidden sector, axion, axions etc.), Large detector systems for particle and astroparticle physic, molybdenum: alloy, Physics::Accelerator Physics, target: design, titanium: admixture, Beam (structure), neutrino detectors
Abstract: The Search for Hidden Particles (SHiP) Collaboration has shown that the CERN SPS accelerator with its 400 $\mathrm{\small GeV/c}$ proton beam offers a unique opportunity to explore the Hidden Sector. The proposed experiment is an intensity frontier experiment which is capable of searching for hidden particles through both visible decays and through scattering signatures from recoil of electrons or nuclei. The high-intensity experimental facility developed by the SHiP collaboration is based on a number of key features and developments which provide the possibility of probing a large part of the parameter space for a wide range of models with light long-lived superweakly interacting particles with masses up to O(10) $\mathrm{\small GeV/c^2}$ in an environment of extremely clean background conditions. This paper describes the proposal for the experimental facility together with the most important feasibility studies. The paper focuses on the challenging new ideas behind the beam extraction and beam delivery, the proton beam dump, and the suppression of beam-induced background., 21 pages
Published: 2019

29. Particle production, transport, and identification in the regime of 1−7 GeV/c

Author: Paola Sala, Nikolaos Charitonidis, Y. Karyotakis, A. C. Booth, Marcel Rosenthal, P. Chatzidaki, E. Nowak, I. Ortega-Ruiz, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules)
Subjects: p: production, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Hadron, beam transport, pi: production, 01 natural sciences, Particle identification, momentum resolution, Nuclear Experiment, Physics, Range (particle radiation), Large Hadron Collider, beam loss, alignment, Surfaces and Interfaces, secondary beam, beam optics, GEANT, beam: size, numerical calculations: Monte Carlo, performance, Nuclear and High Energy Physics, CERN Lab, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], hadron: beam, target, Nuclear physics, Momentum, FLUKA, High-Energy Accelerators and Colliders, 0103 physical sciences, scintillation counter: fibre, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Cherenkov radiation, detector: design, 010308 nuclear & particles physics, time-of-flight counter, positron: beam, Cherenkov counter, Beamline, K: production, lcsh:QC770-798, Physics::Accelerator Physics, beam profile, High Energy Physics::Experiment, gas: pressure, Beam (structure)
Abstract: The recently constructed H4-VLE beam line, a tertiary extension branch of the existing H4 beam line in the CERN North Area, was commissioned in October 2018. The beam line was designed with the purpose of providing very low energy (VLE) hadrons and positrons to the NP-04 experiment, in the momentum range of $1--7\text{ }\mathrm{GeV}/c$. The production of these low-energy particles is achieved with a mixed hadron (pions, kaons, protons), $80\text{ }\text{ }\mathrm{GeV}/c$ secondary beam impinging on a thick target. The H4-VLE beam line has been instrumented with prototype scintillating fiber detectors providing the beam profile, intensity, and time-of-flight measurement of the beam particles, that, together with Cherenkov threshold counters, permit an event-by-event particle identification over the entire momentum spectrum. In this paper, we present detailed results of the beam line performance and the measured beam composition, as well as the comparison of these measurements with simulations performed during the design phase using fluka and geant-4-based Monte-Carlo codes.
Published: 2019

30. Radiation damage from energetic particles at GRad-level of SiO2 fibers of the Large Hadron Collider ATLAS Zero-Degree Calorimeter (ZDC)

Author: D. M. Asner, Z. Kotsina, D. Medvedev, G. Atoian, Aleksey E. Bolotnikov, Alessandro Tricoli, M. Palmer, Nikolaos Charitonidis, Nikolaos Simos, David J. Sprouster, and N.V. Mokhov
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 01 natural sciences, Fluence, Neutron temperature, Nuclear physics, Neutron flux, Absorbed dose, 0103 physical sciences, Radiation damage, Transmittance, Spallation, Irradiation, 010306 general physics, Instrumentation
Abstract: Core SiO2 quartz fibers of the Large Hadron Collider (LHC) ATLAS Zero-degree Calorimeter (ZDC) are expected to experience integrated doses of a few giga-Rad (Grad) at their closest position to the LHC beam. An array of fibers was irradiated with 200 MeV protons and spallation-generated mixed spectra (primarily fast neutrons) at the Brookhaven National Laboratory (BNL) Linac. Specifically, 1 mm- and 2 mm-diameter quartz (GE 124) rods of 50 mm length were exposed to direct 200 MeV protons leading to peak integrated dose of ∼ 28 Grad ( ∼ 0.28 GGy). Exposure of 1 mm-diameter SiO2 fibers to a neutron flux was also achieved in the spallation field generated by 128 MeV protons. In the post-irradiation analysis, the quartz fiber transmittance was evaluated as a function of the absorbed dose. Significant degradation of the transmittance and increased radiation damage of the material were observed. Microscopic evaluation of the fibers revealed extensive micro-structural damage and irradiation-induced defects. The measurements revealed that a threshold fluence ( ∼ 2.6 1016 p/cm2) or dose of ∼ 10 Grad (0.1 GGy) appears to exist beyond which light transmittance drops below 10%. Also observed is that fiber transmittance loss increased drastically with SiO2 fiber diameter (1 mm vs. 2 mm diameter). This is attributed, in part, to the earlier lateral leakage from the 1 mm fiber of knock-on electrons and primary protons implying that more damage-inducing protons travel within the bulk of the 50 mm long 2-mm fibers. While Monte Carlo simulations performed tend to support such assumption, future experiments and sensitivity studies are envisioned to address the fiber diameter influence on degradation.
Published: 2020

31. Single-muon rate reduction for beam dump operation of the K12 beam line at CERN

Author: Johannes Bernhard, Eva Montbarbon, Nikolaos Charitonidis, Marcel Rosenthal, Alexander Gerbershagen, L. Gatignon, T. Spadaro, Markus Brugger, Babette Döbrich, M. Van Dijk, Dipanwita Banerjee, and Bastien Rae
Subjects: Physics, Nuclear and High Energy Physics, Muon, Large Hadron Collider, Scope (project management), 010308 nuclear & particles physics, Rate reduction, Astronomy and Astrophysics, NA62 experiment, 01 natural sciences, Atomic and Molecular Physics, and Optics, law.invention, Nuclear physics, Beamline, law, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Beam dump, 010306 general physics
Abstract: The Physics Beyond Colliders study investigates the feasibility of future projects and experiments using CERN facilities. In the scope of this study, a future operation of the NA62 experiment using the existing K12 beam line operated in beam dump mode is discussed. Such a setup allows for a search for dark sector particles, e.g. heavy neutral leptons, dark photons and axions. Production of these hypothetical particles requires the 400GeV/c proton beam extracted from the Super Proton Synchrotron (SPS) to be dumped on a massive dump collimator located in the first part of the K12 beam line. The decay of these dark sector particles, for example, into muons could be detected by the NA62 experimental setup. However, muons created in particle interactions with material and from in-flight decays of secondary hadrons pose a critical background for this kind of experiment. Magnetic sweeping serves as an efficient tool for reducing this background. This paper discusses the simulation studies conducted with the software framework G4beamline to reduce the expected single-muon rate for this experiment. The required beam line modifications, in particular the removal of the beryllium target and repositioning of the dump, have been implemented into this model. A comparison of simulated muon distributions and spectra available experimental data, already taken in test runs, has been made in order to validate the beam line simulation. Finally, additional beam line modifications to further suppress the muon background are elaborated upon. These studies show a potential further reduction of a factor four of the total single-muon rate relative to the nominal setup over the full momentum range, and up to a factor twenty considering only muons with momenta [Formula: see text].
Published: 2019

32. The 'Physics Beyond Colliders' Projects for the CERN M2 Beam

Author: M. Van Dijk, B.M. Veit, Nikolaos Charitonidis, Gian Luigi D'Alessandro, S. Cholak, M. Brugger, L. Gatignon, Alexander Gerbershagen, Dipanwita Banerjee, Bastien Rae, Eva Montbarbon, Johannes Bernhard, Marcel Rosenthal, and V. de Jesus
Subjects: Nuclear physics, Physics, History, Large Hadron Collider, Physics::Instrumentation and Detectors, Physics::Accelerator Physics, High Energy Physics::Experiment, Beam (structure), Computer Science Applications, Education
Abstract: Physics Beyond Colliders is an exploratory study aimed at exploiting the full scientific potential of CERN’s accelerator complex up to 2040 and its scientific infrastructure through projects complementary to the existing and possible future colliders. Within the Conventional Beam Working Group (CBWG), several projects for the M2 beam line in the CERN North Area were proposed, such as a successor for the COMPASS experiment, a muon programme for NA64 dark sector physics, and the MuonE proposal aiming at investigating the hadronic contribution to the vacuum polarisation. We present integration and beam optics studies for 100 – 160 GeV/c muon beams as well as an outlook for improvements on hadron beams, which include RFseparated options and low-energy antiproton beams and radiation studies for high intensity beams. In addition, necessary beam instrumentation upgrades for beam particle identification and momentum measurements are discussed.
Published: 2019

33. Proton beam induced dynamics of tungsten granules

Author: L. Lacny, J. O’Dell, Nikolaos Charitonidis, Chris Densham, I. Efthymiopoulos, O. Caretta, Bjorn Lindstrom, A. Atherton, M. Fitton, P. Loveridge, Michael Guinchard, T. Davenne, and Adrian Fabich
Subjects: Nuclear and High Energy Physics, Materials science, Physics and Astronomy (miscellaneous), Proton, 010308 nuclear & particles physics, chemistry.chemical_element, Charge (physics), 02 engineering and technology, Surfaces and Interfaces, Tungsten, 021001 nanoscience & nanotechnology, 01 natural sciences, Accelerators and Storage Rings, chemistry, 0103 physical sciences, lcsh:QC770-798, Physics::Accelerator Physics, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, SPHERES, Atomic physics, 0210 nano-technology, Helium, Beam (structure)
Abstract: This paper reports the results from single-pulse experiments of a $440\text{ }\text{ }\mathrm{GeV}/c$ proton beam interacting with granular tungsten samples in both vacuum and helium environments. Remote high-speed photography and laser Doppler vibrometry were used to observe the effect of the beam on the sample grains. The majority of the results were derived from a trough containing $\ensuremath{\sim}45\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ diameter spheres (not compacted) reset between experiments to maintain the same initial conditions. Experiments were also carried out on other open and contained samples for the purposes of comparison both with the $45\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ grain results and with a previous experiment carried out with sub-$250\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ mixed crystalline tungsten powder in helium [Phys. Rev. ST Accel. Beams 17, 101005 (2014)]. The experiments demonstrate that a greater dynamic response is produced in a vacuum than in a helium environment and in smaller grains compared with larger grains. The examination of the dynamics of the grains after a beam impact leads to the hypothesis that the grain response is primarily the result of a charge interaction of the proton beam with the granular medium.
Published: 2018

34. A 4 tonne demonstrator for large-scale dual-phase liquid argon time projection chambers

Author: T. Hasegawa, S. Bordoni, M. Chalifour, Sampsa Vihonen, G. Maire, D. Redondo, N. Geffroy, F. Duval, Ionel Lazanu, A. Verdugo, A. Saftoiu, M. Calin, J. Asaadi, S. Horikawa, Marc Weber, Marzio Nessi, D. Lorca, Masatoshi Maki, B.M. Cautisanu, K. Cankocak, Filippo Resnati, F. Sergiampietri, H. Pessard, M. Parvu, F. Vannucci, L. Zambelli, R. Sulej, M.M. Badoi, A.M. Blebea-Apostu, V. Galymov, G. Misitano, I. De Bonis, I. Gil-Botella, Paolo Crivelli, A. Gendotti, A. Noury, L. Balleyguier, V. Aushev, M.C. Gomoiu, Thorsten Lux, P. Lutz, A. Falcone, Romul Margineanu, B. Aimard, S. Wu, I. Kreslo, D. Stanca, K. Nakayoshi, A. Gallego-Ros, Laura Manenti, V. Toboaru, Y. Pénichot, L. Molina Bueno, D. Pugnere, D. Caiulo, Alexandru Jipa, N. Bourgeois, S. Vilalte, D. Kryn, Animesh Chatterjee, T. Viant, Y. Piret, E. Pennacchio, J. Soto-Oton, D. Autiero, T. Kishishita, E. Mazzucato, Diana Navas-Nicolas, S. Jiménez, Mario Campanelli, L. Scotto Lavina, Enrique Calvo, D. Stefan, C. Drancourt, Y. Karyotakis, J. Sinclair, C. Regenfus, C. Alt, N. Lira, Wladyslaw Henryk Trzaska, Antonio Ereditato, G. Lehmann-Miotto, P. Cotte, J.V. Dawson, Masahiro Ikeno, A. Holin, B. A. Popov, C. Girerd, J. Dumarchez, Yu. Onishchuk, T.S. Mosu, S. Kasai, D. Belver, Jong-Sung Yu, E. Bechetoille, B. Mitrica, S. Shahsavarani, A. Munteanu, B. Radics, K. Sakashita, F. Dulucq, B. Bourguille, Nikolaos Charitonidis, K. Fusshoeller, B.S. Dimitru, T. Patzak, G. Brunetti, P. Gorodetzky, K. Negishi, F. Doizon, J.P. Mols, S. Bolognesi, M. Zito, M. Gherghel-Lascu, A. Tonazzo, André Rubbia, A. Balaceanu, C. Ristea, J. Marteau, D. Mladenov, C. Cantini, H. Mathez, C. Moreno Martinez, L. Periale, F. Noto, Kai Loo, G. Martin-Chassard, Federico Sanchez, L. Brunetti, Y. Rigaut, G. Vasseur, A. Remoto, B. Carlus, C. M. Schloesser, Tomohisa Uchida, G. Brown, W. Tromeur, A. Delbart, W. Mu, P. Chiu, R. Hanni, Masashi Tanaka, S. Conforti, C. Santos, S. Narita, S. Murphy, L. Nita, Martin Auger, S. Di Luise, Jukka Maalampi, M. Shoji, P. Stroescu, T. Esanu, C. de la Taille, C. Lastoria, E. Hamada, M. Niculescu-Oglinzanu, J. Bremer, S. Emery, A. Scarpelli, C. Cuesta, D. Desforge, A. Chiriacescu, C. Giganti, D. Duchesneau, K. Sendai, C. Palomares, A. Chappuis, Katsuyu Kasami, M. Karolak, G. Balik, F. Pietropaolo, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Organisation de Micro-Électronique Générale Avancée (OMEGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Aimard, B, Alt, C, Asaadi, J, Auger, M, Aushev, V, Autiero, D, Badoi, M, Balaceanu, A, Balik, G, Balleyguier, L, Bechetoille, E, Belver, D, Blebea-Apostu, A, Bolognesi, S, Bordoni, S, Bourgeois, N, Bourguille, B, Bremer, J, Brown, G, Brunetti, G, Brunetti, L, Caiulo, D, Calin, M, Calvo, E, Campanelli, M, Cankocak, K, Cantini, C, Carlus, B, Cautisanu, B, Chalifour, M, Chappuis, A, Charitonidis, N, Chatterjee, A, Chiriacescu, A, Chiu, P, Conforti, S, Cotte, P, Crivelli, P, Cuesta, C, Dawson, J, De Bonis, I, De La Taille, C, Delbart, A, Desforge, D, Di Luise, S, Dimitru, B, Doizon, F, Drancourt, C, Duchesneau, D, Dulucq, F, Dumarchez, J, Duval, F, Emery, S, Ereditato, A, Esanu, T, Falcone, A, Fusshoeller, K, Gallego-Ros, A, Galymov, V, Geffroy, N, Gendotti, A, Gherghel-Lascu, M, Giganti, C, Gil-Botella, I, Girerd, C, Gomoiu, M, Gorodetzky, P, Hamada, E, Hanni, R, Hasegawa, T, Holin, A, Horikawa, S, Ikeno, M, Jimenez, S, Jipa, A, Karolak, M, Karyotakis, Y, Kasai, S, Kasami, K, Kishishita, T, Kreslo, I, Kryn, D, Lastoria, C, Lazanu, I, Lehmann-Miotto, G, Lira, N, Loo, K, Lorca, D, Lutz, P, Lux, T, Maalampi, J, Maire, G, Maki, M, Manenti, L, Margineanu, R, Marteau, J, Martin-Chassard, G, Mathez, H, Mazzucato, E, Misitano, G, Mitrica, B, Mladenov, D, Bueno, L, Martinez, C, Mols, J, Mosu, T, Mu, W, Munteanu, A, Murphy, S, Nakayoshi, K, Narita, S, Navas-Nicolas, D, Negishi, K, Nessi, M, Niculescu-Oglinzanu, M, Nita, L, Noto, F, Noury, A, Onishchuk, Y, Palomares, C, Parvu, M, Patzak, T, Penichot, Y, Pennacchio, E, Periale, L, Pessard, H, Pietropaolo, F, Piret, Y, Popov, B, Pugnere, D, Radics, B, Redondo, D, Regenfus, C, Remoto, A, Resnati, F, Rigaut, Y, Ristea, C, Rubbia, A, Saftoiu, A, Sakashita, K, Sanchez, F, Santos, C, Scarpelli, A, Schloesser, C, Lavina, L, Sendai, K, Sergiampietri, F, Shahsavarani, S, Shoji, M, Sinclair, J, Soto-Oton, J, Stanca, D, Stefan, D, Stroescu, P, Sulej, R, Tanaka, M, Toboaru, V, Tonazzo, A, Tromeur, W, Trzaska, W, Uchida, T, Vannucci, F, Vasseur, G, Verdugo, A, Viant, T, Vihonen, S, Vilalte, S, Weber, M, Wu, S, Yu, J, Zambelli, L, Zito, M, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)
Subjects: Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, hiukkasfysiikka, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Neutrino detector, High Energy Physics - Experiment (hep-ex), Ionization, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Neutrino detectors, Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation, physics.ins-det, Mathematical Physics, gas: admixture, Large Hadron Collider, Detector, neutriinot, Instrumentation and Detectors (physics.ins-det), experimental equipment, neutrino: detector, Time projection chamber, ilmaisimet, time projection chambers, Large scale cryogenic liquid detectors [8], photon: yield, Particle Physics - Experiment, performance, Materials science, CERN Lab, Time projection chambers, Particle tracking detectors (Gaseous detectors), ionization: yield, particle tracking detectors (gaseous detectors), tutkimuslaitteet, FOS: Physical sciences, chemistry.chemical_element, Optics, 0103 physical sciences, Deep Underground Neutrino Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Scintillation, Argon, 010308 nuclear & particles physics, business.industry, hep-ex, time projection chamber: liquid argon, chemistry, muon: cosmic radiation, High Energy Physics::Experiment, business, Tonne, neutrino detectors
Abstract: A 10 kilo-tonne dual-phase liquid argon TPC is one of the detector options considered for the Deep Underground Neutrino Experiment (DUNE). The detector technology relies on amplification of the ionisation charge in ultra-pure argon vapour and offers several advantages compared to the traditional single-phase liquid argon TPCs. A 4.2 tonne dual-phase liquid argon TPC prototype, the largest of its kind, with an active volume of \three has been constructed and operated at CERN. In this paper we describe in detail the experimental setup and detector components as well as report on the operation experience. We also present the first results on the achieved charge amplification, prompt scintillation and electroluminescence detection, and purity of the liquid argon from analyses of a collected sample of cosmic ray muons. A 10 kilo-tonne dual-phase liquid argon TPC is one of the detector options considered for the Deep Underground Neutrino Experiment (DUNE). The detector technology relies on amplification of the ionisation charge in ultra-pure argon vapour and oers several advantages compared to the traditional single-phase liquid argon TPCs. A 4.2 tonne dual-phase liquid argon TPC prototype, the largest of its kind, with an active volume of 3x1x1 $m^3$ has been constructed and operated at CERN. In this paper we describe in detail the experimental setup and detector components as well as report on the operation experience. We also present the first results on the achieved charge amplification, prompt scintillation and electroluminescence detection, and purity of the liquid argon from analyses of a collected sample of cosmic ray muons.
Published: 2018

35. The beam lines design for the CERN neutrino platform in the CERN north area and an outlook on their expected performance

Author: M. Brugger, Y. Karyotakis, I. Ortega-Ruiz, E. Nowak, Nikolaos Charitonidis, Paola Sala, L. Gatignon, Ilias Efthymiopoulos, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and Laboratoire d'Annecy de Physique des Particules (LAPP)
Subjects: History, Particle physics, CERN Lab, Instrumentation, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], beam transport, 7. Clean energy, 01 natural sciences, Particle identification, Education, target, Nuclear physics, Momentum, 0103 physical sciences, 010306 general physics, Physics, instrumentation, Range (particle radiation), Large Hadron Collider, detector, experiment, 010308 nuclear & particles physics, Accelerators and Storage Rings, Charged particle, Computer Science Applications, Physics::Accelerator Physics, Neutrino, numerical calculations: Monte Carlo, Beam (structure), performance, proton
Abstract: International audience; In the framework of the CERN Neutrino Platform project, extensions to the existing SPS North Area secondary beam lines “H2” and “H4”, able to provide low-energy charged particles in the momentum range from 0.4 to 12 GeV/c, have been designed. The parameters of these “very low energy” beam lines, the expected beam composition as seen by the experiments as well as an outlook on their expected performance are summarized in this paper. Results from Monte-Carlo simulations, important for the optimization of the future instrumentation of the beam lines (serving both the purpose of beam tuning and the experiments’ needs for particle identification and momentum measurements), are also presented.
Published: 2017

36. Proton Irradiation Effects on the Physio-Mechanical Properties and Microstructure of Cold-Worked Molybdenum$

Author: Alessandro Bertarelli, Hui Zhong, Z. Kotsina, Stefano Redaelli, Nikolaos Charitonidis, Nikolaos Simos, N. Mariani, Sanjit Ghose, Zhong Zhong, E Doorhyee, and E. Quaranta
Subjects: Nuclear and High Energy Physics, Materials science, Proton, Metallurgy, Energy Engineering and Power Technology, chemistry.chemical_element, Particle accelerator, Microstructure, Accelerators and Storage Rings, law.invention, Nuclear Energy and Engineering, chemistry, law, Molybdenum, Neutron, Spallation, Texture (crystalline), Irradiation, Detectors and Experimental Techniques, Waste Management and Disposal
Abstract: High temperature refractory materials and alloys including Mo and TZM have been considered and studied to assess their applicability in fusion reactor applications in addition to spallation targets in particle accelerators. The impacts of neutron, proton and ion irradiation on the properties and microstructure of pure Mo and its combination TZM have been evaluated through illumination damage studies. Cold-worked molybdenum (CW half), described by a microstructure comprising of non-consistently extended grains, has been considered for use in the Large Hadron Collider 7 TeV shaft halo cleaning framework has incited the present investigation. To assess the degradation of key physio-mechanical properties of the cold-worked structure following protracted exposure to proton irradiation as well as the impact of the irradiation temperature on the degradation irradiations with 200 MeV protons at 960°C to fluencies $\sim 2 \times 10^{21}$ p/cm$^{2}$ and with 28 MeV at below 600°C to fluency of $\sim 6 \times 10^{20}$ p/cm$^{2}$ were performed at Brookhaven National Laboratory. High energy X-rays at the NSLS and NSLS II synchrotrons were utilized in the post-irradiation evaluation (PIE) to assess the evolution of the microstructure. It was revealed that the cold-worked Mo and in agreement with neutron irradiation studies at high temperatures, suffers serious reduction in tensile strength due to the evolution of defects into dislocation networks. Further, irradiation at temperatures near the full re-crystallization temperature of the cold-worked structure removes the texture of the microstructure induced by cold working.
Published: 2017

37. Estimation of the R134a gas refractive index for use as a Cherenkov radiator, using a high energy charged particle beam

Author: Nikolaos Charitonidis, L. Gatignon, Y. Karyotakis, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Atmospheric pressure, 010308 nuclear & particles physics, High-refractive-index polymer, business.industry, 01 natural sciences, Particle identification, R134a, Optics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, business, Charged particle beam, Instrumentation, Refractive index, Cherenkov gas radiator, Cherenkov radiation, Particle Physics - Experiment, Refractive index measurement, Bar (unit)
Abstract: Gases with relatively high refractive index, n - 1 ≥ 500 × 10 - 6 at atmospheric pressure, giving a satisfactory photoelectron yield at relatively low pressures ( ≤ 5 bar ) are rare. These gases are often the only practical solution for low momentum particle identification in conventional secondary beam lines. The refractive index of R134a, one of the most common gases available to the physics community, has never been measured or reported. In the present note, the results of a dedicated experiment to estimate the refractive index of R134a, using mixed hadron/electron beams in the range 0.5–10 GeV are presented.
Published: 2017

38. Characterization of extended range Bonner Sphere Spectrometers in the CERF high-energy broad neutron field at CERN

Author: Roberto Bedogni, Marco Silari, Adolfo Esposito, Marco Caresana, Stefano Agosteo, Clizia Tecla Severino, Nikolaos Charitonidis, M. Ferrarini, and M. Chiti
Subjects: Radiation protection, Bonner sphere, Physics, Nuclear and High Energy Physics, Spectrometer, business.industry, Equivalent dose, Monte Carlo method, Neutron spectra unfolding, Neutron temperature, Computational physics, Optics, Neutron flux, Neutron spectrometry, Bonner spheres, Calibration, Neutron, business, Instrumentation
Abstract: The accurate determination of the ambient dose equivalent in the mixed neutron-photon fields encountered around high-energy particle accelerators still represents a challenging task. The main complexity arises from the extreme variability of the neutron energy, which spans over ten orders of magnitude or more. Operational survey instruments, which response function attempts to mimic the fluence-to-ambient dose equivalent conversion coefficient up to GeV neutrons, are available on the market, but their response is not fully reliable over the entire energy range. Extended range rem counters (ERRC) do not require the exact knowledge of the energy distribution of the neutron field and the calibration can be done with a source spectrum. If the actual neutron field has an energy distribution different from the calibration spectrum, the measurement is affected by an added uncertainty related to the partial overlap of the fluence-to- ambient dose equivalent conversion curve and the response function. For this reason their operational use should always be preceded by an “in-field” calibration, i.e. a calibration made against a reference instrument exposed in the same field where the survey-meter will be employed. In practice the extended-range Bonner Sphere Spectrometer (ERBSS) is the only device which can serve as reference instrument in these fields, because of its wide energy range and the possibility to assess the neutron fluence and the ambient dose equivalent (H⁎(10)) values with the appropriate accuracy. Nevertheless, the experience gained by a number of experimental groups suggests that mandatory conditions for obtaining accurate results in workplaces are: (1) the use of a well-established response matrix, thus implying validation campaigns in reference monochromatic neutrons fields, (2) the expert and critical use of suitable unfolding codes, and (3) the performance test of the whole system (experimental set-up, elaboration and unfolding procedures) in a well controlled workplace field. The CERF (CERN-EU high-energy reference field) facility is a unique example of such a field, where a number of experimental campaigns and Monte Carlo simulations have been performed over the past years. With the aim of performing this kind of workplace performance test, four different ERBSS with different degrees of validation, operated by three groups (CERN, INFN-LNF and Politecnico of Milano), were exposed in two fixed positions at CERF. By using different unfolding codes (MAXED, GRAVEL, FRUIT and FRUIT SGM), the experimental data were analyzed to provide the neutron spectra and the related dosimetric quantities. The results allow assessing the overall performance of each ERBSS and of the unfolding codes, as well as comparing the performance of three ERRCs when used in a neutron field with energy distribution different from the calibration spectrum.
Published: 2012

39. Response of a tungsten powder target to an incident high energy proton beam

Author: Adrian Fabich, M. Fitton, J. O’Dell, T. Davenne, Nikolaos Charitonidis, P. Loveridge, Leonid Rivkin, Chris Densham, I. Efthymiopoulos, and O. Caretta
Subjects: Accelerator Physics (physics.acc-ph), Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), chemistry.chemical_element, FOS: Physical sciences, Tungsten, 01 natural sciences, Beam pulse, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Optics, Nuclear magnetic resonance, High-Energy Accelerators and Colliders, High energy proton, 0103 physical sciences, Nuclear Physics - Experiment, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010306 general physics, Physics, Large Hadron Collider, 010308 nuclear & particles physics, business.industry, Surfaces and Interfaces, Instrumentation and Detectors (physics.ins-det), Accelerators and Storage Rings, chemistry, lcsh:QC770-798, Physics::Accelerator Physics, Physics - Accelerator Physics, business, Laser Doppler vibrometer
Abstract: The experiment described in this paper is the first study of the response of a static tungsten powder sample to an impinging high energy proton beam pulse. The experiment was carried out at the HiRadMat facility at CERN. Observations include high speed videos of a proton beam induced perturbation of the powder sample as well as data from a laser Doppler vibrometer measuring the oscillations of the powder container. A comparison with a previous analogous experiment which studied a proton beam interaction with mercury is made. The experiment described in this paper is the first study of the response of a static tungsten powder sample to an impinging high energy proton beam pulse. The experiment was carried out at the HiRadMat facility at CERN. Observations include high speed videos of a proton beam induced perturbation of the powder sample as well as data from a laser Doppler vibrometer measuring the oscillations of the powder container. A comparison with a previous analogous experiment which studied a proton beam interaction with mercury is made
Published: 2016
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40. Experimental study and FLUKA simulations of a prototype micromegas chamber in a mixed neutron and photon radiation field

Author: Nikolaos Charitonidis, A. Tsinganis, Evangelos Gazis, M. Kokkoris, R. Vlastou, Theodoros Alexopoulos, Francesco Cerutti, Georgios Tsipolitis, and E. Skordis
Subjects: Physics, Nuclear and High Energy Physics, Photon, Spectrometer, Physics::Instrumentation and Detectors, Detector, MicroMegas detector, Inelastic scattering, Nuclear physics, Neutron cross section, High Energy Physics::Experiment, Neutron, Particle physics experiments, Nuclear Experiment, Instrumentation
Abstract: Detectors based on the micromegas principle have already been used in several atomic, nuclear and particle physics experiments. They have also been proposed as one of the options to upgrade the ATLAS muon spectrometer in the very forward/backward region. To meet this end, it is imperative to study their performance in a mixed (neutron and gamma) radiation field. The general-purpose Monte-Carlo code FLUKA has been employed in the present work in order to study the effect of 5.5 MeV neutrons impinging on a prototype micromegas detector developed for sLHC. The response of the detector to the photons originating from the inevitable neutron inelastic scattering on the surrounding materials of the experimental facility was also studied, through comparisons with experimental data. (C) 2012 Elsevier B.V. All rights reserved.
Published: 2012

41. HiRadMat: A high-energy, pulsed beam, material irradiation facility

Author: I. Efthymiopoulos, Nikolaos Charitonidis, and Adrian Fabich
Subjects: Physics, Large Hadron Collider, Proton, Nuclear engineering, Pulse duration, Particle accelerator, Pulse (physics), law.invention, Nuclear physics, law, Physics::Accelerator Physics, Irradiation, Nuclear Experiment, Energy (signal processing), Beam (structure)
Abstract: HiRadMat is a recently constructed facility designed to provide high-intensity pulsed beams to an irradiation area where different material samples or accelerator components can be tested. The facility, located at the CERN SPS accelerator complex, uses a 440 GeV proton beam with a pulse length up to 7.2 μs and a maximum intensity up to 1013 protons / pulse. The facility, a unique place for performing state-of-the art beam-to-material experiments, operates under transnational access and welcomes and financially supports, under certain conditions, experimental teams to perform their experiments.
Published: 2015

42. Instrument intercomparison in the pulsed neutron fields at the CERN HiRadMat facility

Author: E. Aza, Christopher Cassell, Marco Caresana, E Harrouch, Marco Silari, Daniel Perrin, Nikolaos Charitonidis, Giacomo Paolo Manessi, Evangelia Samara, and Michel Pangallo
Subjects: Physics, Radiation, RPINST, Proton, Physics::Instrumentation and Detectors, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Detector, Dead time, Neutron Detectors, 030218 nuclear medicine & medical imaging, Nuclear physics, 03 medical and health sciences, 0302 clinical medicine, Optics, HiRadMat, Orders of magnitude (time), 030220 oncology & carcinogenesis, Ionization, Neutron detection, Intercomparison, Neutron, business, Instrumentation, Beam (structure)
Abstract: An intercomparison of the performances of active neutron detectors was carried out in pulsed neutron fields in the new HiRadMat facility at CERN. Five detectors were employed: four of them (two ionization chambers and two rem counters) are routinely employed in the CERN radiation monitoring system, while the fifth is a novel instrument, called LUPIN, specifically conceived for applications in pulsed neutron fields. The measurements were performed in the stray field generated by a proton beam of very short duration with momentum of 440 GeV/c impinging on a dump. The beam intensity was steadily increased during the experiment by more than three orders of magnitude, with an H*(10) due to neutrons at the detector reference positions varying between a few nSv per burst and a few μSv per burst, whereas the gamma contribution to the total H*(10) was negligible. The aim of the experiment was to evaluate the linearity of the detector response in extreme pulsed conditions as a function of the neutron burst intensity. The results show that the ionization chambers have a quasi-linear response, very close to the ideal behaviour also for values of H*(10) of a few μSv/burst; the LUPIN response shows a slight deviation from the ideal curve when the H*(10) per burst is higher than 100 nSv; the rem counters response are characterized by a strong deviation from the linearity for H*(10) values higher than a few tens of nSv.
Published: 2014

43. An experiment to test advanced materials impacted by intense proton pulses at CERN HiRadMat facility

Author: Luca Gentini, Alessandro Dallocchio, P. Francon, P Fernandez Carmona, P. Moyret, E. Berthome, Nikolaos Charitonidis, Michael Guinchard, Martina Scapin, Alessandro Masi, C. Charrondiere, F. Cerutti, Federico Carra, Vittorio Boccone, Stefano Redaelli, Nicola Mariani, Lorenzo Peroni, S. D. Marques dos Santos, and Alessandro Bertarelli
Subjects: Nuclear and High Energy Physics, Embedded instrumentation, Nuclear engineering, 02 engineering and technology, 7. Clean energy, 01 natural sciences, law.invention, Nuclear physics, Shock waves, law, 0103 physical sciences, CERN, Hydrocodes, High power target systems, HiRadMat, Particle accelerators, Beam intercepting devices, Instrumentation, Strain gauge, Collimators & materials for higher beam power beam [8], Physics, Large Hadron Collider, 010308 nuclear & particles physics, Particle accelerator, Collimator, 021001 nanoscience & nanotechnology, Accelerators and Storage Rings, Measuring instrument, 0210 nano-technology, Laser Doppler vibrometer, Beam (structure)
Abstract: Predicting the consequences of highly energetic particle beams impacting protection devices as collimators or high power target stations is a fundamental issue in the design of state-of-the-art facilities for high-energy particle physics. These complex dynamic phenomena can be successfully simulated resorting to highly non-linear numerical tools (Hydrocodes). In order to produce accurate results, however, these codes require reliable material constitutive models that, at the extreme conditions induced by a destructive beam impact, are scarce and often inaccurate. In order to derive or validate such models a comprehensive, first-of-its-kind experiment has been recently carried out at CERN HiRadMat facility: performed tests entailed the controlled impact of intense and energetic proton pulses on a number of specimens made of six different materials. Experimental data were acquired relying on embedded instrumentation (strain gauges, temperature probes and vacuum sensors) and on remote-acquisition devices (laser Doppler vibrometer and high-speed camera). The method presented in this paper, combining experimental measurements with numerical simulations, may find applications to assess materials under very high strain rates and temperatures in domains well beyond particle physics (severe accidents in fusion and fission nuclear facilities, space debris impacts, fast and intense loadings on materials and structures etc.). (c) 2013 Elsevier B.V. All rights reserved.
Published: 2013

44. Sensitivity of the SHiP experiment to Heavy Neutral Leptons

Author: Volker Büscher, S. van Waasen, Michael Wurm, A. Dolmatov, V. Bayliss, Sung Keun Park, S. Kormannshaus, Mitsuhiro Nakamura, K. Kershaw, M. Chernyavskiy, G. Gavrilov, S. Vilchinski, Karel Cornelis, P. Ninin, T. Shchedrina, Andrea Miano, S. Donskov, Nobuko Kitagawa, A. Di Crescenzo, John Back, W. Schmidt-Parzefall, P. Santos Diaz, V. M. Grachev, M. Shaposhnikov, Andrea Prota, Andrey Golutvin, Akira Nishio, Serge Smirnov, V.D. Samoylenko, F. Redi, O. Lantwin, K. Kodama, D. Sukhonos, P. Fonte, R. Tsenov, G. M. Dallavalle, Alessandro Paoloni, S. Ogawa, V. Drohan, Antonio Perillo-Marcone, I. Korol, Alexey Boyarsky, G. Felici, S. Mikado, Nicola D'Ambrosio, Rainer Wanke, N. Konovalova, Yeong Gyun Kim, A. Kono, T. M. Roganova, S. Nasybulin, A. Golovatiuk, E. Khalikov, Y. Berdnikov, A. Iuliano, Annarita Buonaura, F. L. Fabbri, Natalia Polukhina, Nicola Serra, S. Simone, Gianluigi Arduini, Alexander Mclean Marshall, J. Borburgh, A. Kolesnikov, Christopher Betancourt, K.-Y. Choi, Pavel Shatalov, A. Quercia, E. Solodko, M. de Magistris, Raffaele Fresa, Brennan Goddard, G. Rosa, Andrey Ustyuzhanin, Philippe Mermod, M. Bertani, Heinz Vincke, E. V. Atkin, B. Hosseini, Alexander E. Shustov, F. Sanchez Galan, D. A. Podgrudkov, B. Obinyakov, A. Bay, Hans Dijkstra, Paolo Ciambrone, N. Gruzinskii, Laura Fabbri, A. De Roeck, Mikhail V. Gorshenkov, P. Venkova, John Osborne, Victor Maleev, M. Ferro-Luzzi, Alexander E. Volkov, S. Movchan, A. Calcaterra, E. van Herwijnen, A. Mefodev, A. M. Guler, Sergey E. Ulin, M. Prokudin, S. Buontempo, Mikhail Hushchyn, G. Khoriauli, P. Wertelaers, P. Owen, Arnaud Dubreuil, A.S. Novikov, K. Filippov, J. Ebert, Dmitry Gorbunov, Mario Campanelli, E. Koukovini Platia, S. Marsh, Konstantin F. Vlasik, Iaroslava Bezshyiko, Kang Soo Lee, Petr Andreevich Gorbounov, P. Kurbatov, D. Yilmaz, N. Owtscharenko, N. Azorskiy, Naotaka Naganawa, D. Breton, Matthew Fraser, F. Vannucci, S. Ricciardi, Valery V. Dmitrenko, Volodymyr Rodin, A. Alexandrov, Patrick Robbe, P. Dergachev, A.B. Rodrigues Cavalcante, Giuseppe Iaselli, R. A. Fini, D. Bick, Adrian Fabich, V. Kurochka, Yu.A. Kudenko, P. Dipinto, A. Hollnagel, Heiko Lacker, Fedor Ratnikov, V. P. Loschiavo, Masahiro Komatsu, G. Khaustov, A. Korzenev, J. Bauche, Z. M. Uteshev, Maulik R. Patel, Y. Muttoni, Anne-Marie Magnan, Daniel Treille, J. Boehm, N. I. Starkov, A. Shakin, Yosuke Suzuki, Caren Hagner, J. Chauveau, G. Bencivenni, A. Saputi, B. Opitz, Konstantinos Petridis, Alexey A. Petrov, Osamu Sato, Y. A. Gornushkin, Adele Lauria, A. Crupano, Ekaterina Kuznetsova, G. Granich, A. Chumakov, Samuel Silverstein, J. De Carvalho Saraiva, J. Prieto Prieto, G. L. Petkov, M. Bogomilov, V. Samsonov, J. Maalmi, F. Fedotovs, L. G. Dedenko, Maksym Ovchynnikov, V. Venturi, Marco Calviani, W. Bonivento, J.-L. Grenard, J. Gall, A. Khotyantsev, Oleg Fedin, Hiroki Rokujo, Mauro Villa, D. Kolev, Lau Gatignon, Helmut Vincke, Stefania Xella, J.-W. Ko, I. Zarubina, N. Di Marco, Rosa Simoniello, D. Domenici, M. M. Khabibullin, Giuseppe D'Appollonio, C. Hessler, A. Berdnikov, A.V. Etenko, F. Bardou, David Milstead, C. Kamiscioglu, Richard Jacobsson, Toshiyuki Nakano, M. Jonker, Yu. Mikhaylov, Dmitry Golubkov, A. U. Yilmazer, A. Datwyler, V. Ivantchenko, B. D. Park, I. W. Harris, G. Vankova-Kirilova, Gareth J. Barker, D. Joković, A. K. Managadze, M. Rinaldesi, C. Franco, L. Lopes, S. Gorbunov, A. Bagulya, Markus Cristinziani, D. Pereyma, V. Gentile, Vadim Kostyukhin, Maria Elena Stramaglia, Sergey Kovalenko, D. De Simone, Viktor Rodin, Nicolò Tosi, E. Graverini, L. A. Dougherty, L. Golinka-Bezshyyko, E. Lopez Sola, Verena Kain, G. De Lellis, A. Sokolenko, A. Pastore, Yu. Zaytsev, J. L. Tastet, P. Chau, N. Kondrateva, Claudio O. Dib, S. Than Naing, M. Torii, A. A. Rademakers, S. Cadeddu, C. Ahdida, M. De Serio, A. M. Anokhina, Satoru Takahashi, M. Battistin, T. Rawlings, J.-K. Woo, F. Baaltasar Dos Santos, Nikolaos Charitonidis, Gaia Lanfranchi, Marco Bruschi, N. Okateva, I. Korol’ko, A. Malinin, Kang Young Lee, V. Kolosov, T. Fukuda, H. Hakobyan, Richard Brenner, Stefano Sgobba, A. Sanz Ull, Alexander Baranov, R. Brundler, Victor Kim, Seok Kim, Volodymyr M. Gorkavenko, H. Shibuya, P. Pacholek, A. Blanco, E. Kurbatov, S. Dmitrievskiy, Davide Tommasini, C. S. Yoon, D. Grenier, I. Krasilnikova, P. Zarubin, S. Bieschke, Barbara Storaci, V. Poliakov, Kunihiro Morishima, Kyrylo Bondarenko, Maria Cristina Montesi, Tiziano Rovelli, M. Manfredi, I. Kadenko, Oleg Ruchayskiy, Ciro Visone, Inar Timiryasov, Giuliana Galati, J.-M. Lévy, M. Casolino, A. S. Chepurnov, Alessandro Montanari, E. S. Savchenko, Mike Lamont, R. Froeschl, A. Rakai, R. Voronkov, Oleg Bezshyyko, Valeri Tioukov, Raffaele Albanese, S. Shirobokov, A. L. Grandchamp, Shigeki Aoki, Guido Haefeli, P. Teterin, Oleg Mineev, V. Grichine, Yuki Manabe, Yu. Guz, J. Y. Sohn, Lesya Shchutska, I. Berezkina, Oksana Shadura, T. Ruf, T. Enik, Rocco Paparella, V. Shevchenko, V. E. Lyubovitskij, L. Stoel, M. D. Skorokhvatov, Ahdida C., Albanese R., Alexandrov A., Anokhina A., Aoki S., Arduini G., Atkin E., Azorskiy N., Baaltasar Dos Santos F., Back J.J., Bagulya A., Baranov A., Bardou F., Barker G.J., Battistin M., Bauche J., Bay A., Bayliss V., Bencivenni G., Berdnikov Y.A., Berdnikov A.Y., Berezkina I., Bertani M., Betancourt C., Bezshyiko I., Bezshyyko O., Bick D., Bieschke S., Blanco A., Boehm J., Bogomilov M., Bondarenko K., Bonivento W.M., Borburgh J., Boyarsky A., Brenner R., Breton D., Brundler R., Bruschi M., Buscher V., Buonaura A., Buontempo S., Cadeddu S., Calcaterra A., Calviani M., Campanelli M., Casolino M., Charitonidis N., Chau P., Chauveau J., Chepurnov A., Chernyavskiy M., Choi K.-Y., Chumakov A., Ciambrone P., Cornelis K., Cristinziani M., Crupano A., Dallavalle G.M., Datwyler A., D'Ambrosio N., D'Appollonio G., Dedenko L., Dergachev P., De Carvalho Saraiva J., De Lellis G., de Magistris M., De Roeck A., De Serio M., De Simone D., Dib C., Dijkstra H., Dipinto P., Di Crescenzo A., Di Marco N., Dmitrenko V., Dmitrievskiy S., Dolmatov A., Domenici D., Donskov S., Dougherty L.A., Drohan V., Dubreuil A., Ebert J., Enik T., Etenko A., Fabbri F., Fabbri L., Fabich A., Fedin O., Fedotovs F., Ferro-Luzzi M., Felici G., Filippov K., Fini R.A., Fonte P., Franco C., Fraser M., Fresa R., Froeschl R., Fukuda T., Galati G., Gall J., Gatignon L., Gavrilov G., Gentile V., Goddard B., Golinka-Bezshyyko L., Golovatiuk A., Golubkov D., Golutvin A., Gorbounov P., Gorbunov S., Gorbunov D., Gorkavenko V., Gornushkin Y., Gorshenkov M., Grachev V., Grandchamp A.L., Granich G., Graverini E., Grenard J.-L., Grenier D., Grichine V., Gruzinskii N., Guz Y., Haefeli G.J., Hagner C., Hakobyan H., Harris I.W., Hessler C., Hollnagel A., Hosseini B., Hushchyn M., Iaselli G., Iuliano A., Ivantchenko V., Jacobsson R., Jokovic D., Jonker M., Kadenko I., Kain V., Kamiscioglu C., Kershaw K., Khabibullin M., Khalikov E., Khaustov G., Khoriauli G., Khotyantsev A., Kim Y.G., Kim V., Kim S.H., Kitagawa N., Ko J.-W., Kodama K., Kolesnikov A., Kolev D.I., Kolosov V., Komatsu M., Kondrateva N., Kono A., Konovalova N., Kormannshaus S., Korol I., Korol'ko I., Korzenev A., Kostyukhin V., Koukovini Platia E., Kovalenko S., Krasilnikova I., Kudenko Y., Kurbatov E., Kurbatov P., Kurochka V., Kuznetsova E., Lacker H.M., Lamont M., Lanfranchi G., Lantwin O., Lauria A., Lee K.S., Lee K.Y., Levy J.-M., Lopes L., Lopez Sola E., Loschiavo V.P., Lyubovitskij V., Guler A.M., Maalmi J., Magnan A., Maleev V., Malinin A., Manabe Y., Managadze A.K., Manfredi M., Marsh S., Marshall A.M., Mefodev A., Mermod P., Miano A., Mikado S., Mikhaylov Y., Milstead D.A., Mineev O., Montanari A., Montesi M.C., Morishima K., Movchan S., Muttoni Y., Naganawa N., Nakamura M., Nakano T., Nasybulin S., Ninin P., Nishio A., Novikov A., Obinyakov B., Ogawa S., Okateva N., Opitz B., Osborne J., Ovchynnikov M., Owen P.H., Owtscharenko N., Pacholek P., Paoloni A., Paparella R., Park B.D., Park S.K., Pastore A., Patel M., Pereyma D., Perillo-Marcone A., Petkov G.L., Petridis K., Petrov A., Podgrudkov D., Poliakov V., Polukhina N., Prieto Prieto J., Prokudin M., Prota A., Quercia A., Rademakers A., Rakai A., Ratnikov F., Rawlings T., Redi F., Ricciardi S., Rinaldesi M., Robbe P., Rodin V., Rodrigues Cavalcante A.B., Roganova T., Rokujo H., Rosa G., Rovelli T., Ruchayskiy O., Ruf T., Samoylenko V., Samsonov V., Sanchez Galan F., Santos Diaz P., Sanz Ull A., Saputi A., Sato O., Savchenko E.S., Schmidt-Parzefall W., Serra N., Sgobba S., Shadura O., Shakin A., Shaposhnikov M., Shatalov P., Shchedrina T., Shchutska L., Shevchenko V., Shibuya H., Shirobokov S., Shustov A., Silverstein S.B., Simone S., Simoniello R., Skorokhvatov M., Smirnov S., Sohn J.Y., Sokolenko A., Solodko E., Starkov N., Stoel L., Storaci B., Stramaglia M.E., Sukhonos D., Suzuki Y., Takahashi S., Tastet J.L., Teterin P., Than Naing S., Timiryasov I., Tioukov V., Tommasini D., Torii M., Tosi N., Treille D., Tsenov R., Ulin S., Ustyuzhanin A., Uteshev Z., Vankova-Kirilova G., Vannucci F., van Herwijnen E., van Waasen S., Venkova P., Venturi V., Vilchinski S., Villa M., Vincke H., Visone C., Vlasik K., Volkov A., Voronkov R., Wanke R., Wertelaers P., Woo J.-K., Wurm M., Xella S., Yilmaz D., Yilmazer A.U., Yoon C.S., Zarubin P., Zarubina I., Zaytsev Y., Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), SHiP, Ahdida, C., Albanese, R., Alexandrov, A., Anokhina, A., Aoki, S., Arduini, G., Atkin, E., Azorskiy, N., Baaltasar Dos Santos, F., Back, J. J., Bagulya, A., Baranov, A., Bardou, F., Barker, G. J., Battistin, M., Bauche, J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, Y. A., Berdnikov, A. Y., Berezkina, I., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Bondarenko, K., Bonivento, W. M., Borburgh, J., Boyarsky, A., Brenner, R., Breton, D., Brundler, R., Bruschi, M., Büscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Calviani, M., Campanelli, M., Casolino, M., Charitonidis, N., Chau, P., Chauveau, J., Chepurnov, A., Chernyavskiy, M., Choi, K. -Y., Chumakov, A., Ciambrone, P., Cornelis, K., Cristinziani, M., Crupano, Antonio, Dallavalle, G. M., Datwyler, A., D’Ambrosio, N., D’Appollonio, G., Dedenko, L., Dergachev, P., De Carvalho Saraiva, J., De Lellis, G., de Magistris, M., De Roeck, A., De Serio, M., De Simone, D., Dib, C., Dijkstra, H., Dipinto, P., Di Crescenzo, A., Di Marco, N., Dmitrenko, V., Dmitrievskiy, S., Dolmatov, A., Domenici, D., Donskov, S., Dougherty, L. A., Drohan, V., Dubreuil, A., Ebert, J., Enik, T., Etenko, A., Fabbri, F., Fabbri, L., Fabich, A., Fedin, O., Fedotovs, F., Ferro-Luzzi, M., Felici, G., Filippov, K., Fini, R. A., Fonte, P., Franco, C., Fraser, M., Fresa, R., Froeschl, R., Fukuda, T., Galati, G., Gall, J., Gatignon, L., Gavrilov, G., Gentile, V., Goddard, B., Golinka-Bezshyyko, L., Golovatiuk, Artem, Golubkov, D., Golutvin, A., Gorbounov, P., Gorbunov, S., Gorbunov, D., Gorkavenko, V., Gornushkin, Y., Gorshenkov, M., Grachev, V., Grandchamp, A. L., Granich, G., Graverini, E., Grenard, J. -L., Grenier, D., Grichine, V., Gruzinskii, N., Guz, Yu., Haefeli, G. J., Hagner, C., Hakobyan, H., Harris, I. W., Hessler, C., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, A., Ivantchenko, V., Jacobsson, R., Joković, D., Jonker, M., Kadenko, I., Kain, V., Kamiscioglu, C., Kershaw, K., Khabibullin, M., Khalikov, E., Khaustov, G., Khoriauli, G., Khotyantsev, A., Kim, Y. G., Kim, V., Kim, S. H., Kitagawa, N., Ko, J. -W., Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Kondrateva, N., Kono, A., Konovalova, N., Kormannshaus, S., Korol, I., Korol’Ko, I., Korzenev, A., Kostyukhin, V., Koukovini Platia, E., Kovalenko, S., Krasilnikova, I., Kudenko, Y., Kurbatov, E., Kurbatov, P., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lamont, M., Lanfranchi, G., Lantwin, O., Lauria, A., Lee, K. S., Lee, K. Y., Lévy, J. -M., Lopes, L., Lopez Sola, E., Loschiavo, V. P., Lyubovitskij, V., Guler, A. M., Maalmi, J., Magnan, A., Maleev, V., Malinin, A., Manabe, Y., Managadze, A. K., Manfredi, M., Marsh, S., Marshall, A. M., Mefodev, A., Mermod, P., Miano, A., Mikado, S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Montanari, A., Montesi, M. C., Morishima, K., Movchan, S., Muttoni, Y., Naganawa, N., Nakamura, M., Nakano, T., Nasybulin, S., Ninin, P., Nishio, A., Novikov, A., Obinyakov, B., Ogawa, S., Okateva, N., Opitz, B., Osborne, J., Ovchynnikov, M., Owen, P. H., Owtscharenko, N., Pacholek, P., Paoloni, A., Paparella, R., Park, B. D., Park, S. K., Pastore, A., Patel, M., Pereyma, D., Perillo-Marcone, A., Petkov, G. L., Petridis, K., Petrov, A., Podgrudkov, D., Poliakov, V., Polukhina, N., Prieto Prieto, J., Prokudin, M., Prota, A., Quercia, A., Rademakers, A., Rakai, A., Ratnikov, F., Rawlings, T., Redi, F., Ricciardi, S., Rinaldesi, M., Robbe, P., Rodin, Viktor, Rodin, Volodymyr, Rodrigues Cavalcante, A. B., Roganova, T., Rokujo, H., Rosa, G., Rovelli, T., Ruchayskiy, O., Ruf, T., Samoylenko, V., Samsonov, V., Sanchez Galan, F., Santos Diaz, P., Sanz Ull, A., Saputi, A., Sato, O., Savchenko, E. S., Schmidt-Parzefall, W., Serra, N., Sgobba, S., Shadura, O., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shirobokov, S., Shustov, A., Silverstein, S. B., Simone, S., Simoniello, R., Skorokhvatov, M., Smirnov, S., Sohn, J. Y., Sokolenko, A., Solodko, E., Starkov, N., Stoel, L., Storaci, B., Stramaglia, M. E., Sukhonos, D., Suzuki, Y., Takahashi, S., Tastet, J. L., Teterin, P., Than Naing, S., Timiryasov, I., Tioukov, V., Tommasini, D., Torii, M., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., van Herwijnen, E., van Waasen, S., Venkova, P., Venturi, V., Vilchinski, S., Villa, M., Vincke, Heinz, Vincke, Helmut, Visone, C., Vlasik, K., Volkov, A., Voronkov, R., Wanke, R., Wertelaers, P., Woo, J. -K., Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., Zarubin, P., Zarubina, I., Zaytsev, Yu., Dubreuil, Arnaud, Korzenev, Alexander, Mermod, Philippe, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)
Subjects: Physics beyond the Standard Model, 01 natural sciences, High Energy Physics - Experiment, Physics, Particles & Fields, Subatomär fysik, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), vmsm, Subatomic Physics, lepton: heavy, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], media_common, Physics, search, 02 Physical Sciences, lepton: dark matter, new physics, lepton: mixing, hep-ph, Nuclear & Particles Physics, asymmetry: CP, High Energy Physics - Phenomenology, Fixed target experiments, Physical Sciences, processes involving neutrinos, Neutrino, Particle Physics - Experiment, Nuclear and High Energy Physics, Particle physics, media_common.quotation_subject, Dark matter, FOS: Physical sciences, ddc:500.2, Asymmetry, Standard Model, masses, sterile neutrinos, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, Sensitivity (control systems), bounds, 010306 general physics, 01 Mathematical Sciences, Particle Physics - Phenomenology, Science & Technology, hep-ex, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, dark matter: detector, detector: sensitivity, dark-matter, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Beyond Standard Model, general-theory, lcsh:QC770-798, High Energy Physics::Experiment, lepton: new particle, majorana neutrinos, matter: asymmetry, decays, Lepton
Abstract: Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These particles can, among other things, explain the origin of neutrino masses, generate the observed matter-antimatter asymmetry in the Universe and provide a dark matter candidate. The SHiP experiment will be able to search for HNLs produced in decays of heavy mesons and travelling distances ranging between $\mathcal{O}(50\text{ m})$ and tens of kilometers before decaying. We present the sensitivity of the SHiP experiment to a number of HNL's benchmark models and provide a way to calculate the SHiP's sensitivity to HNLs for arbitrary patterns of flavour mixings. The corresponding tools and data files are also made publicly available., Comment: journal version

45. First year of operations in the hiradmat irradiation facility at CERN

Author: Fabich, A., Nikolaos CHARITONIDIS, Conan, N., Cornelis, K., Depaoli, D., Efthymiopoulos, I., Evrard, S., Gaillard, H., Grenard, J. L., Lazzaroni, M., Pardons, A., Seraphin, Y., Theis, C., and Weiss, K.
Subjects: Accelerators and Storage Rings
Abstract: The HiRadMat facility [1] is designed to provide a test area where the effect of high-intensity pulsed beams on materials or accelerator component assemblies can be studied. The facility is not designed for long-term irradiation studies but rather for single pulse experiments to study the onset of material damage. The designed target is ten experiments per year, with 1015 protons or about 30 high intensity pulses per experiment, thus a total of 1016 protons per year for the whole facility. It is judged that for the majority of the experiments a small number of high intensity pulses would be sufficient in order to investigate the damage to the test samples whilst keeping the activation levels reasonably low such that post-irradiation tests could be performed after a reasonable cool-down period. The HiRadMat facility is situated in the former West Area Neutrino Facility (WANF) target tunnel and is about 35 m below ground. It takes the fast extracted beam from the long straight section LSS6 of SPS, the same used for the TI2 injection line to LHC. The construction of the facility was completed in 2011. Two commissioning periods, one with low-intensity beams in May 2011 and one with high-intensity beams (with intensities up to the 1013 protons/pulse) in summer 2011 were successfully completed [2]. The online documentation for the facility is available at: http://cern.ch/hiradmat.

46. Sensitivity of the SHiP experiment to light dark matter

Author: S. Buontempo, A.S. Novikov, E. Koukovini Platia, R. A. Fini, Alexander E. Shustov, A. Mefodev, W. Schmidt-Parzefall, A. Golovatiuk, A. Kolesnikov, P. Kurbatov, Claudio O. Dib, V. P. Loschiavo, Gianluigi Arduini, Ekaterina Kuznetsova, Oleg Fedin, D. Breton, C. S. Yoon, Olivier Mattelaer, J. Bauche, S. Bieschke, John Osborne, Victor Maleev, Elena Graverini, V. Bayliss, Heinz Vincke, A. M. Anokhina, S. van Waasen, M. D. Skorokhvatov, Michael Wurm, A. Dolmatov, Maria Cristina Montesi, Nobuko Kitagawa, M. Patel, G. M. Dallavalle, Nicola D'Ambrosio, Karel Cornelis, D. Yilmaz, I. W. Harris, S. Kormannshaus, K. Kershaw, D. Sukhonos, S. V. Donskov, I. Korol’ko, S. Gorbunov, M. Torii, E. Ursov, Nicola Serra, S. Ogawa, Alessandro Paoloni, Sergey Kovalenko, Y.G. Kim, M. Chernyavskiy, A. Korzenev, Satoru Takahashi, C. Ahdida, Y. Muttoni, F. Redi, O. Durhan, Serge Smirnov, V.D. Samoylenko, Alexander Baranov, Natalia Polukhina, J.-K. Woo, Sergey E. Ulin, N. I. Starkov, A.V. Etenko, Sandro Cadeddu, V. Drohan, Stefano Sgobba, A. Akmete, G. Bencivenni, A. Di Crescenzo, A. Iuliano, Annarita Buonaura, A. Sanz Ull, S. Simone, R. de Asmundis, P. Chau, P. Pacholek, Christopher Betancourt, Pavel Shatalov, S. Movchan, D. Kolev, Yu. Mikhaylov, Victor Golovtsov, N. Konovalova, C. Kamiscioglu, Gareth J. Barker, W. Bonivento, Rainer Wanke, Mario Campanelli, Dmitry Golubkov, T. Ruf, S. Vilchinski, P. Ninin, R. Froeschl, Philippe Mermod, M. Ehlert, V. E. Lyubovitskij, A. K. Managadze, E. Lopez Sola, M. Rinaldesi, D. A. Podgrudkov, B. Obinyakov, Vladimir Samsonov, G. Lanfranchi, L. A. Dougherty, K. Filippov, Luca Buonocore, E. V. Atkin, Nikolaos Charitonidis, B. Hosseini, Giuseppe D'Appollonio, A. Bay, Naotaka Naganawa, J. Gall, A. Khotyantsev, P. Dergachev, A.B. Rodrigues Cavalcante, A. Calcaterra, E. Khalikov, A. Zelenov, Yosuke Suzuki, A. Rakai, R. Voronkov, V. Gentile, D. De Simone, Mikhail Hushchyn, J. Boehm, Genady Gavrilov, Daniel Treille, J. De Carvalho Saraiva, F. Baaltasar Dos Santos, I. Korol, Alexander Mclean Marshall, Oleg Bezshyyko, Dmitry Gorbunov, R. Jacobsson, Raffaele Albanese, Osamu Sato, D. Pereyma, Mitsuhiro Nakamura, B. Opitz, Konstantinos Petridis, S. Shirobokov, Yu.A. Kudenko, A. Crupano, G. Rosa, Helmut Vincke, Adele Lauria, Alexey Boyarsky, Andrea Miano, D. Karpenkov, E. Elikkaya, Shigeki Aoki, M. Ferro-Luzzi, Martina Ferrillo, Maksym Ovchynnikov, D. Bick, Marco Calviani, J.-L. Grenard, A. Sokolenko, T. Rawlings, B. D. Park, A. Golutvin, C. Franco, E. Kurbatov, J.-W. Ko, A. Bagulya, Francesco Tramontano, Rosa Simoniello, Vladimir Shevchenko, Markus Cristinziani, Andrey Ustyuzhanin, Matthew Fraser, F. Vannucci, J. J. Back, P. Fonte, T. M. Roganova, Lesya Shchutska, Fedor Ratnikov, F. L. Fabbri, V. M. Grachev, A. Quercia, E. Solodko, O. Williams, Y. Berdnikov, M. Bogomilov, Mikhail V. Gorshenkov, M. de Magistris, A. Datwyler, Paolo Ciambrone, Brennan Goddard, Fabio Maltoni, Victor Kim, Akira Nishio, T. Enik, Hans Dijkstra, Liliana Congedo, Volodymyr M. Gorkavenko, Alexander Malinin, L. G. Dedenko, N. Azorskiy, Z. M. Uteshev, S. Ricciardi, Davide Tommasini, Vadim Kostyukhin, Nicolò Tosi, A. Saputi, M. Jonker, Hiroki Rokujo, G. L. Petkov, L. Stoel, Volker Büscher, L. Golinka-Bezshyyko, G. Vankova-Kirilova, L. Lopes, Alexey Volkov, S. Nasybulin, Viktor Rodin, R. Tsenov, Oliver Lantwin, Oksana Shadura, M. Battistin, A. Pastore, S. Than Naing, N. Okateva, Petr Andreevich Gorbounov, Giuseppe Iaselli, V. Kurochka, D. Grenier, E. van Herwijnen, A. Shakin, A.U. Yilmazer, F. Fedotovs, V. Cicero, J. Zimmerman, Valery V. Dmitrenko, A. Alexandrov, Patrick Robbe, A. Hollnagel, Caren Hagner, K.-Y. Choi, I. Krasilnikova, P Owen, Kyrylo Bondarenko, Claudia Frugiuele, J. Prieto Prieto, K. S. Lee, Mikhail Shaposhnikov, Samuel Silverstein, Verena Kain, J. Maalmi, L. Di Giulio, V. Poliakov, G. Felici, L. Gatignon, A. Kono, Arnaud Dubreuil, Oleg Mineev, J. Borburgh, M. Manfredi, Iaroslava Bezshyiko, Iryna Boiarska, T. Fukuda, H. Hakobyan, Richard Brenner, P. Santos Diaz, Yuki Manabe, T. Shchedrina, Oleg Ruchayskiy, Ciro Visone, Heiko Lacker, S. Mikado, D. Domenici, M. Prokudin, Andrea Prota, K. Kodama, J. S. Schliwinski, S. Marsh, J.-M. Lévy, N. Di Marco, B. Kaiser, Antonio Perillo-Marcone, Maria Elena Stramaglia, J. Y. Sohn, M. Bertani, F. Sanchez Galan, Raffaele Fresa, G. Khoriauli, Yu. Guz, G.V. Khaustov, Konstantin F. Vlasik, Alexey A. Petrov, A. De Roeck, P. Wertelaers, H. Shibuya, A. L. Grandchamp, P. Teterin, Volodymyr Rodin, V.N. Kolosov, Anne-Marie Magnan, V. Venturi, V. Tioukov, M. M. Khabibullin, F. Bardou, Stefania Xella, Yu. Zaytsev, J. L. Tastet, David Milstead, A. A. Rademakers, V. Grichine, J. Chauveau, C. Hessler, A. Berdnikov, D. Joković, M. De Serio, N. Gruzinskii, Masahiro Komatsu, A. Chumakov, Toshiyuki Nakano, G. De Lellis, A. Blanco, Kunihiro Morishima, Lev Uvarov, Tiziano Rovelli, N. Owtscharenko, A. M. Guler, Inar Timiryasov, Giuliana Galati, G. Haefeli, M. Casolino, A. S. Chepurnov, Alessandro Montanari, E. S. Savchenko, K.Y. Lee, Mike Lamont, I. Kadenko, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), SHiP, Albanese, R., Alexandrov, A., Crupano, A., De Lellis, G., Di Crescenzo, A., Galati, G., Gentile, V., Golovatiuk, A., Iuliano, A., Lauria, A., Miano, A., Montesi, M. C., Prota, A., Quercia, A., Rosa, G., Tramontano, F., Visone, C., UCL - SST/IRMP - Institut de recherche en mathématique et physique, Ahdida C., Akmete A., Albanese R., Alexandrov A., Anokhina A., Aoki S., Arduini G., Atkin E., Azorskiy N., Back J.J., Bagulya A., Baaltasar Dos Santos F., Baranov A., Bardou F., Barker G.J., Battistin M., Bauche J., Bay A., Bayliss V., Bencivenni G., Berdnikov A.Y., Berdnikov Y.A., Bertani M., Betancourt C., Bezshyiko I., Bezshyyko O., Bick D., Bieschke S., Blanco A., Boehm J., Bogomilov M., Boiarska I., Bondarenko K., Bonivento W.M., Borburgh J., Boyarsky A., Brenner R., Breton D., Buscher V., Buonaura A., Buonocore L., Buontempo S., Cadeddu S., Calcaterra A., Calviani M., Campanelli M., Casolino M., Charitonidis N., Chau P., Chauveau J., Chepurnov A., Chernyavskiy M., Choi K.-Y., Chumakov A., Ciambrone P., Cicero V., Congedo L., Cornelis K., Cristinziani M., Crupano A., Dallavalle G.M., Datwyler A., D'Ambrosio N., D'Appollonio G., de Asmundis R., De Carvalho Saraiva J., De Lellis G., de Magistris M., De Roeck A., De Serio M., De Simone D., Dedenko L., Dergachev P., Di Crescenzo A., Di Giulio L., Di Marco N., Dib C., Dijkstra H., Dmitrenko V., Dougherty L.A., Dolmatov A., Domenici D., Donskov S., Drohan V., Dubreuil A., Durhan O., Ehlert M., Elikkaya E., Enik T., Etenko A., Fabbri F., Fedin O., Fedotovs F., Felici G., Ferrillo M., Ferro-Luzzi M., Filippov K., Fini R.A., Fonte P., Franco C., Fraser M., Fresa R., Froeschl R., Frugiuele C., Fukuda T., Galati G., Gall J., Gatignon L., Gavrilov G., Gentile V., Goddard B., Golinka-Bezshyyko L., Golovatiuk A., Golovtsov V., Golubkov D., Golutvin A., Gorbounov P., Gorbunov D., Gorbunov S., Gorkavenko V., Gorshenkov M., Grachev V., Grandchamp A.L., Graverini E., Grenard J.-L., Grenier D., Grichine V., Gruzinskii N., Guler A.M., Guz Y., Haefeli G.J., Hagner C., Hakobyan H., Harris I.W., van Herwijnen E., Hessler C., Hollnagel A., Hosseini B., Hushchyn M., Iaselli G., Iuliano A., Jacobsson R., Jokovic D., Jonker M., Kadenko I., Kain V., Kaiser B., Kamiscioglu C., Karpenkov D., Kershaw K., Khabibullin M., Khalikov E., Khaustov G., Khoriauli G., Khotyantsev A., Kim Y.G., Kim V., Kitagawa N., Ko J.-W., Kodama K., Kolesnikov A., Kolev D.I., Kolosov V., Komatsu M., Kono A., Konovalova N., Kormannshaus S., Korol I., Korol'ko I., Korzenev A., Kostyukhin V., Koukovini Platia E., Kovalenko S., Krasilnikova I., Kudenko Y., Kurbatov E., Kurbatov P., Kurochka V., Kuznetsova E., Lacker H.M., Lamont M., Lanfranchi G., Lantwin O., Lauria A., Lee K.S., Lee K.Y., Levy J.-M., Loschiavo V.P., Lopes L., Lopez Sola E., Lyubovitskij V., Maalmi J., Magnan A., Maleev V., Malinin A., Maltoni F., Manabe Y., Managadze A.K., Manfredi M., Marsh S., Marshall A.M., Mattelaer O., Mefodev A., Mermod P., Miano A., Mikado S., Mikhaylov Y., Milstead D.A., Mineev O., Montanari A., Montesi M.C., Morishima K., Movchan S., Muttoni Y., Naganawa N., Nakamura M., Nakano T., Nasybulin S., Ninin P., Nishio A., Novikov A., Obinyakov B., Ogawa S., Okateva N., Opitz B., Osborne J., Ovchynnikov M., Owtscharenko N., Owen P.H., Pacholek P., Paoloni A., Park B.D., Pastore A., Patel M., Pereyma D., Perillo-Marcone A., Petkov G.L., Petridis K., Petrov A., Podgrudkov D., Poliakov V., Polukhina N., Prieto Prieto J., Prokudin M., Prota A., Quercia A., Rademakers A., Rakai A., Ratnikov F., Rawlings T., Redi F., Ricciardi S., Rinaldesi M., Rodin V., Robbe P., Rodrigues Cavalcante A.B., Roganova T., Rokujo H., Rosa G., Rovelli T., Ruchayskiy O., Ruf T., Samoylenko V., Samsonov V., Sanchez Galan F., Santos Diaz P., Sanz Ull A., Saputi A., Sato O., Savchenko E.S., Schliwinski J.S., Schmidt-Parzefall W., Serra N., Sgobba S., Shadura O., Shakin A., Shaposhnikov M., Shatalov P., Shchedrina T., Shchutska L., Shevchenko V., Shibuya H., Shirobokov S., Shustov A., Silverstein S.B., Simone S., Simoniello R., Skorokhvatov M., Smirnov S., Sohn J.Y., Sokolenko A., Solodko E., Starkov N., Stoel L., Stramaglia M.E., Sukhonos D., Suzuki Y., Takahashi S., Tastet J.L., Teterin P., Than Naing S., Timiryasov I., Tioukov V., Tommasini D., Torii M., Tosi N., Tramontano F., Treille D., Tsenov R., Ulin S., Ursov E., Ustyuzhanin A., Uteshev Z., Uvarov L., Vankova-Kirilova G., Vannucci F., Venturi V., Vilchinski S., Vincke H., Visone C., Vlasik K., Volkov A., Voronkov R., van Waasen S., Wanke R., Wertelaers P., Williams O., Woo J.-K., Wurm M., Xella S., Yilmaz D., Yilmazer A.U., Yoon C.S., Zaytsev Y., Zelenov A., and Zimmerman J.
Subjects: cosmological model, WIMP nucleus: scattering, QC770-798, 01 natural sciences, 7. Clean energy, WIMP: dark matter, Dark photon, Cosmology, High Energy Physics - Experiment, thermal, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), benchmark, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Light dark matter, Physics, Range (particle radiation), hep-ph, High Energy Physics - Phenomenology, dark matter: scattering, neutrino: detector, Neutrino detector, Fixed target experiments, Weakly interacting massive particles, proposed experiment, beyond standard model, Particle Physics - Experiment, Nuclear and High Energy Physics, Particle physics, SND, Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Accelerator Physics and Instrumentation, dark matter, Standard Model, Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, ddc:530, 010306 general physics, fixed target experiments, Particle Physics - Phenomenology, photon: hidden sector, 010308 nuclear & particles physics, hep-ex, dark matter: mass, Acceleratorfysik och instrumentering, CERN SPS, Beyond Standard Model, sensitivity, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Majorana
Abstract: Dark matter is a well-established theoretical addition to the Standard Model supported by many observations in modern astrophysics and cosmology. In this context, the existence of weakly interacting massive particles represents an appealing solution to the observed thermal relic in the Universe. Indeed, a large experimental campaign is ongoing for the detection of such particles in the sub-GeV mass range. Adopting the benchmark scenario for light dark matter particles produced in the decay of a dark photon, with $\alpha_D=0.1$ and $m_{A'}=3m_{\chi}$, we study the potential of the SHiP experiment to detect such elusive particles through its Scattering and Neutrino detector (SND). In its 5-years run, corresponding to $2\cdot 10^{20}$ protons on target from the CERN SPS, we find that SHiP will improve the current limits in the mass range for the dark matter from about 1 MeV to 300 MeV. In particular, we show that SHiP will probe the thermal target for Majorana candidates in most of this mass window and even reach the Pseudo-Dirac thermal relic., Comment: 39 pages, 14 figures, 5 tables. v2: extended version as published on JHEP
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47. Search for Axionlike and Scalar Particles with the NA64 Experiment

Author: B.I. Vasilishin, V.D. Samoylenko, David R. Cooke, P. Ulloa, V.E. Burtsev, Serguei Kuleshov, L. Molina Bueno, L. Kravchuk, Dipanwita Banerjee, V. A. Matveev, V. Yu. Volkov, D. A. Tlisov, Petr Volkov, Rimsky Alejandro Rojas, D. Shchukin, André Rubbia, E. Depero, M. Kirsanov, Vassili Kachanov, S. N. Gninenko, M. Jeckel, N. V. Krasnikov, V. E. Lyubovitskij, Paolo Crivelli, A. V. Dermenev, V. A. Kramarenko, V. M. Lysan, V. O. Tikhomirov, A.G. Chumakov, V.A. Polyakov, Nikolaos Charitonidis, A. Yu. Trifonov, Igor Konorov, D. V. Kirpichnikov, T. Enik, A. N. Toropin, B. Ketzer, A. Feshchenko, Vladimir Frolov, R.R. Dusaev, V.N. Kolosov, A. Gardikiotis, S. G. Kovalenko, H. Sieber, G. D. Kekelidze, I. Tlisova, G. Vasquez Arenas, Yu. V. Mikhailov, S. V. Donskov, A. E. Karneyeu, B. Radics, Johannes Bernhard, M. Hösgen, D. Peshekhonov, and S. Gerassimov
Subjects: electron beam, Particle physics, Photon, Physics::Instrumentation and Detectors, Gammagamma, General Physics and Astronomy, Virtual particle, FOS: Physical sciences, Electron, Model independent, Computer Science::Digital Libraries, 01 natural sciences, Virtual photons, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Parameter spaces, High Energy Physics - Phenomenology (hep-ph), Germanium compounds, brems radiation, 0103 physical sciences, 010306 general physics, Axion, Primakoff effect, Particle Physics - Phenomenology, Physics, Missing energy, Two photon, hep-ex, Bremsstrahlung, hep-ph, Coupling strengths, Pseudoscalar, High Energy Physics - Phenomenology, axion, Particle Physics - Experiment
Abstract: We carried out a model-independent search for light scalar (s) and pseudoscalar axionlike (a) particles that couple to two photons by using the high-energy CERN SPS H4 electron beam. The new particles, if they exist, could be produced through the Primakoff effect in interactions of hard bremsstrahlung photons generated by 100 GeV electrons in the NA64 active dump with virtual photons provided by the nuclei of the dump. The a(s) would penetrate the downstream HCAL module, serving as shielding, and would be observed either through their $a(s)\to\gamma \gamma$ decay in the rest of the HCAL detector or as events with large missing energy if the a(s) decays downstream of the HCAL. This method allows for the probing the a(s) parameter space, including those from generic axion models, inaccessible to previous experiments. No evidence of such processes has been found from the analysis of the data corresponding to $2.84\times10^{11}$ electrons on target allowing to set new limits on the $a(s)\gamma\gamma$-coupling strength for a(s) masses below 55 MeV., Comment: This publication is dedicated to the memory of our colleague Danila Tlisov. 7 pages, 5 figures, revised version accepted for publication in Phys. Rev. Lett
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48. The magnet of the scattering and neutrino detector for the SHiP experiment at CERN

Author: G. Khoriauli, Konstantin F. Vlasik, Oleg Ruchayskiy, Nicola D'Ambrosio, Ciro Visone, Alexander Malinin, J.-M. Lévy, Satoru Takahashi, Vadim Kostyukhin, A. Calcaterra, Osamu Sato, Adele Lauria, C. Hessler, A. Berdnikov, L. G. Dedenko, Maksym Ovchynnikov, D. Joković, Gianfranca De Rosa, J.-K. Woo, Nicolò Tosi, L. Golinka-Bezshyyko, D. Bick, Adrian Fabich, Lesya Shchutska, Sandro Cadeddu, Gianluigi Arduini, Hiroki Rokujo, Marco Calviani, J.-W. Ko, Yu. Guz, A. Di Crescenzo, Alexey A. Petrov, H. Shibuya, M. De Serio, P. Wertelaers, S. Mikado, Stefano Sgobba, D. Breton, E. Kurbatov, S. Dmitrievskiy, Alessandro Pastore, Davide Tommasini, W. Bonivento, D. Grenier, Heiko Lacker, A.V. Etenko, P. Zarubin, V. Poliakov, M. Manfredi, A. Sanz Ull, J. Bauche, N. Kondrateva, V. Kolosov, I. Korol, Alexey Boyarsky, A. Blanco, M. Ehlert, C. S. Yoon, L. Stoel, L. Lopes, Volker Büscher, P. Fonte, A. L. Grandchamp, Valery V. Dmitrenko, A. Alexandrov, Patrick Robbe, A. Hollnagel, Gareth J. Barker, S. Gerlach, John Osborne, Victor Maleev, T. Enik, M. D. Skorokhvatov, Victor Kim, S. van Waasen, G. Gavrilov, Alexey Volkov, Michael Wurm, A. Dolmatov, S. Bieschke, M. M. Khabibullin, K. Filippov, F. Bardou, V. Gentile, S. Nasybulin, Volodymyr M. Gorkavenko, Markus Cristinziani, D. De Simone, S. Than Naing, Karel Cornelis, C. Franco, V. Minutolo, Patrick Owen, Verena Kain, Raffaele Fresa, E. van Herwijnen, K.-Y. Choi, V. Shevchenko, D. Yilmaz, Maria Cristina Montesi, D. Sukhonos, T. Shchedrina, P. Teterin, Oleg Mineev, G. Passeggio, Heinz Vincke, M. Nakamura, Paolo Ciambrone, Mike Lamont, Kang Young Lee, T. Fukuda, H. Hakobyan, Richard Brenner, Alessandro Paoloni, Sung Keun Park, S. Kormannshaus, K. Kershaw, S. Ogawa, Alexander E. Shustov, A. Mefodev, Elena Graverini, Yu. Mikhaylov, R. Brundler, K. S. Lee, Dmitry Golubkov, A. U. Yilmazer, Yosuke Suzuki, Yuki Manabe, S. V. Donskov, D. Kolev, Samuel Silverstein, B. Storaci, J. Maalmi, D. A. Podgrudkov, B. Obinyakov, P. Kurbatov, Natalia Polukhina, A. K. Managadze, C. Kamiscioglu, Laura Fabbri, V. E. Lyubovitskij, I. Zarubina, Yu. G. Kudenko, Yu. Zaytsev, J. L. Tastet, Mikhail Hushchyn, G. Granich, V. P. Loschiavo, Ekaterina Kuznetsova, J. De Carvalho Saraiva, K. Kodama, I. Krasilnikova, Serge Smirnov, N. I. Starkov, G. Vankova-Kirilova, D. Domenici, S. Movchan, A. De Roeck, M. Rinaldesi, Toshiyuki Nakano, L. Gatignon, M. Chernyavskiy, J. Chauveau, John Back, J. Boehm, T. M. Roganova, E. Khalikov, V. Drohan, Oleg Fedin, V.D. Samoylenko, Mauro Villa, G. De Lellis, Daniel Treille, Kyrylo Bondarenko, A. A. Rademakers, T. Ruf, L. A. Dougherty, J. Y. Sohn, Viktor Rodin, A. Crupano, A. Rakai, F. L. Fabbri, Naotaka Naganawa, B. Kaiser, I. W. Harris, S. Gorbunov, Alexander Mclean Marshall, Mikhail Shaposhnikov, E. Lopez Sola, G. Lanfranchi, Maria Elena Stramaglia, Antonio Perillo-Marcone, R. Voronkov, A. Quercia, E. Solodko, Oleg Bezshyyko, N. Gruzinskii, N. Konovalova, Sergey Kovalenko, Helmut Vincke, P. Santos Diaz, W. Schmidt-Parzefall, G. Felici, Salvatore Buontempo, C. Ahdida, A. Iuliano, Annarita Buonaura, Sergey E. Ulin, Raffaele Albanese, S. Simone, S. Shirobokov, I. Berezkina, Mario Campanelli, Nikolaos Charitonidis, Yeong Gyun Kim, A. Kono, M. Battistin, Rainer Wanke, J.-L. Grenard, Mikhail V. Gorshenkov, P. Venkova, Rosa Simoniello, M. Jonker, Andrea Prota, Andrey Ustyuzhanin, Caren Hagner, Vladimir Samsonov, B. D. Park, Shigeki Aoki, J. Borburgh, A. Kolesnikov, Masahiro Komatsu, G. Khaustov, Christopher Betancourt, Pavel Shatalov, F. Baaltasar Dos Santos, R. Froeschl, Kunihiro Morishima, Claudio O. Dib, Marco Bruschi, N. Okateva, J. S. Schliwinski, Y. Berdnikov, V. Grichine, A. Chumakov, Dmitry Gorbunov, Petr Andreevich Gorbounov, L. Shihora, S. Vilchinski, M. de Magistris, Tiziano Rovelli, Brennan Goddard, A. Datwyler, P. Ninin, P. Dergachev, A.B. Rodrigues Cavalcante, J. Prieto Prieto, Giuseppe Iaselli, M. Prokudin, Oksana Shadura, A. Bagulya, I. Kadenko, V. Kurochka, Hans Dijkstra, Andrea Miano, M. Ferro-Luzzi, A. Saputi, B. Opitz, Konstantinos Petridis, Y. A. Gornushkin, N. Owtscharenko, A. Shakin, Z. M. Uteshev, S. Marsh, F. Fedotovs, E. V. Atkin, Liliana Congedo, N. Azorskiy, B. Hosseini, A. M. Guler, S. Ricciardi, Inar Timiryasov, Giuliana Galati, G. Haefeli, I. Korol’ko, G. L. Petkov, V. M. Grachev, A. M. Anokhina, M. Casolino, Akira Nishio, A.S. Novikov, A. Korzenev, R. A. Fini, A. S. Chepurnov, Philippe Mermod, E. Koukovini Platia, M. Patel, Y. Muttoni, F. Redi, A. Bay, G. Bencivenni, Alessandro Montanari, E. S. Savchenko, M. Torii, A. Golovatiuk, Seok Kim, A. Golutvin, A. Sokolenko, J. Gall, P. Dipinto, A. Khotyantsev, T. Rawlings, Arnaud Dubreuil, R. Tsenov, Iaroslava Bezshyiko, Oliver Lantwin, V. Bayliss, Nobuko Kitagawa, G. M. Dallavalle, Nicola Serra, Volodymyr Rodin, Alexander Baranov, Anne-Marie Magnan, P. Pacholek, V. Venturi, V. Tioukov, Stefania Xella, David Milstead, Giuseppe D'Appollonio, V. Ivantchenko, R. Jacobsson, D. Pereyma, Matthew Fraser, F. Vannucci, Fedor Ratnikov, M. Bogomilov, P. Chau, M. Bertani, F. Sanchez Galan, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), SHiP, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Ahdida, C., Albanese, R., Alexandrov, A., Anokhina, A., Aoki, S., Arduini, G., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Baaltasar Dos Santos, F., Baranov, A., Bardou, F., Barker, G. J., Battistin, M., Bauche, J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Berezkina, I., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Bondarenko, K., Bonivento, W. M., Borburgh, J., Boyarsky, A., Brenner, R., Breton, D., Brundler, R., Bruschi, M., Büscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Calviani, M., Campanelli, M., Casolino, M., Charitonidis, N., Chau, P., Chauveau, J., Chepurnov, A., Chernyavskiy, M., Choi, K. -Y., Chumakov, A., Ciambrone, P., Congedo, L., Cornelis, K., Cristinziani, M., Crupano, A., Dallavalle, G. M., Datwyler, A., D’Ambrosio, N., D’Appollonio, G., De Carvalho Saraiva, J., De Lellis, G., de Magistris, M., De Roeck, l A., De Serio, M., De Simone, D., Dedenko, L., Dergachev, P., Di Crescenzo, A., Dib, d C., Dijkstra, H., Dipinto, P., Dmitrenko, a V., Dmitrievskiy, S., Dougherty, L. A., Dolmatov, A., Domenici, D., Donskov, S., Drohan, V., Dubreuil, A., Ehlert, M., Enik, T., Etenko, A., L. Fabbri, F. Fabbri, Fabich, b A., Fedin, O., Fedotovs, F., Felici, G., Ferro-Luzzi, M., Filippov, K., Fini, R. A., Fonte, P., Franco, C., Fraser, M., Fresa, R., I, Froeschl, h R., Fukuda, T., Galati, G., Gall, d J., Gatignon, L., Gavrilov, G., Gentile, V., Gerlach, d S., Goddard, B., Golinka-Bezshyyko, L., Golovatiuk, A., Golubkov, d D., Golutvin, A., Gorbounov, P., Gorbunov, D., Gorbunov, S., Gorkavenko, V., Gornushkin, Y., Gorshenkov, M., Grachev, V., Grandchamp, A. L., Granich, G., Graverini, E., Grenard, J. -L., Grenier, D., Grichine, V., Gruzinskii, N., Guler, A. M., Guz, Yu., Haefeli, G. J., Hagner, C., Hakobyan, H., Harris, I. W., van Herwijnen, E., Hessler, C., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, a A., Ivantchenko, d V., Jacobsson, R., Joković, D., Jonker, M., Kadenko, I., Kain, V., Kaiser, B., Kamiscioglu, C., Kershaw, K., Khabibullin, M., Khalikov, E., Khaustov, G., Khoriauli, G., Khotyantsev, A., Kim, S. H., Kim, Y. G., Kim, V., Kitagawa, N., Ko, J. -W., Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Kondrateva, N., Kono, A., Konovalova, N., Kormannshaus, S., Korol, I., Korol’Ko, I., Korzenev, A., Kostyukhin, V., Koukovini Platia, E., Kovalenko, S., Krasilnikova, I., Kudenko, Y., Kurbatov, g E., Kurbatov, P., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lamont, M., Lanfranchi, G., Lantwin, O., Lauria, A., Lee, d K. S., Lee, K. Y., Lévy, J. -M., Loschiavo, V. P., Lopes, k L., Lopez Sola, E., Lyubovitskij, V., Maalmi, J., Magnan, A., Maleev, V., Malinin, A., Manabe, Y., Managadze, A. K., Manfredi, M., Marsh, S., Marshall, A. M., Mefodev, A., Mermod, P., Miano, A., Mikado, d S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Minutolo, V., Montanari, j A., Montesi, M. C., Morishima, d K., Movchan, S., Muttoni, Y., Naganawa, N., Nakamura, M., Nakano, T., Nasybulin, S., Ninin, P., Nishio, A., Novikov, A., Obinyakov, B., Ogawa, S., Okateva, N., Opitz, B., Osborne, J., Ovchynnikov, M., Owtscharenko, N., Owen, P. H., Pacholek, P., Paoloni, A., Park, B. D., Park, S. K., Passeggio, G., Pastore, A., Patel, M., Pereyma, D., Perillo-Marcone, A., Petkov, G. L., Petridis, K., Petrov, A., Podgrudkov, D., Poliakov, V., Polukhina, N., Prieto Prieto, J., Prokudin, M., Prota, A., Quercia, d A., Rademakers, d A., Rakai, A., Ratnikov, F., Rawlings, T., Redi, F., Ricciardi, S., Rinaldesi, M., Rodin, Volodymyr, Rodin, Viktor, Robbe, P., Rodrigues Cavalcante, A. B., Roganova, T., Rokujo, H., Rosa, G., Rovelli, d T., Ruchayskiy, b O., Ruf, T., Samoylenko, V., Samsonov, V., Sanchez Galan, F., Santos Diaz, P., Sanz Ull, A., Saputi, A., Sato, O., Savchenko, E. S., Schliwinski, J. S., Schmidt-Parzefall, W., Serra, N., Sgobba, S., Shadura, O., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shihora, L., Shirobokov, S., Shustov, A., Silverstein, S. B., Simone, S., M. Skorokhvatov, a R. Simoniello, Smirnov, S., Sohn, J. Y., Sokolenko, A., Solodko, E., Starkov, N., Stoel, L., Storaci, B., Stramaglia, M. E., Sukhonos, D., Suzuki, Y., Takahashi, S., Tastet, J. L., Teterin, P., Than Naing, S., Timiryasov, I., Tioukov, V., Tommasini, D., Torii, M., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., Venkova, P., Venturi, V., Vilchinski, S., Villa, M., Heinz Vincke, B, Vincke, Helmut, Visone, C., A. Volkov, d K. Vlasik, Voronkov, R., van Waasen, S., Wanke, R., Wertelaers, P., Woo, J. -K., Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., Zarubin, P., Zaytsev, I. Zarubina and Yu., Santos, F. Baaltasar Do, Blanco, Antonio, Congedo, Luca, D'Ambrosio, N., D'Appollonio, G., Saraiva, J. De Carvalho, Lellis, G. De, Roeck, A. De, Serio, M. De, DE SIMONE, David, Crescenzo, A. Di, Dib, C., Dmitrenko, V., Fabbri, Franco, Fabbri, Loretta, Fabich, A., Froeschl, R., Gall, J., Gerlach, S., Golubkov, D., Herwijnen, E. van, Hessler, CHRISTIANE JOHANNA, Iuliano, A., Ivantchenko, V., Korol'Ko, I., Platia, E. Koukovini, Kurbatov, E., Lee, K. S., Lopes, L., Sola, E. Lopez, Mikado, S., Montanari, A., Morishima, K., Prieto, J. Prieto, Quercia, A., Rademakers, A., Redi, Fabio, Ricciardi, Silvestro, Cavalcante, A. B. Rodrigue, Rovelli, T., Ruchayskiy, O., Galan, F. Sanchez, Diaz, P. Santo, Ull, A. Sanz, Simoniello, R., Skorokhvatov, M., Naing, S. Than, Vincke, Heinz, Vlasik, K., Volkov, A., Waasen, S. van, Zarubina, I., and Zaytsev, Yu.
Subjects: Technology, Physics - Instrumentation and Detectors, wigglers and undulators), magnet: design, Permanent magnet devices, Physics::Instrumentation and Detectors, engineering, 01 natural sciences, 7. Clean energy, 09 Engineering, 030218 nuclear medicine & medical imaging, radiation hardened magnets, Subatomär fysik, 0302 clinical medicine, Dipole magnet, Subatomic Physics, Neutrino detectors, Detectors and Experimental Techniques, Instruments & Instrumentation, Instrumentation, physics.ins-det, Acceleration cavities and magnets superconducting (high-temperature superconductor, normal-conducting, permanent magnet devices, Mathematical Physics, Physics, 02 Physical Sciences, Large Hadron Collider, Instrumentation and Detectors (physics.ins-det), magnet: technology, Nuclear & Particles Physics, bending magnet, neutrino: detector, Neutrino detector, proposed experiment, CERN Lab, Radiation hardened magnets, FOS: Physical sciences, Normal-conducting, Accelerator Physics and Instrumentation, Nuclear physics, 03 medical and health sciences, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Wigglers and undulators), normal-conducting magnets, Science & Technology, 010308 nuclear & particles physics, Scattering, Large detector systems for particle and astroparticle physics, Acceleratorfysik och instrumentering, Large detector systems for particle physics, High temperature superconductors, Neutrons, Permanent magnets, Ships, Superconducting magnets, Wigglers, Astroparticle physics, Comprehensive designs, Massive structures, Neutrino detectors, Normal-conducting, Radiation-hardened, Ship experiments, Technical challenges, Particle detectors, Volume (thermodynamics), Magnet, High Energy Physics::Experiment, neutrino detectors
Abstract: The Search for Hidden Particles (SHiP) experiment proposal at CERN demands a dedicated dipole magnet for its scattering and neutrino detector. This requires a very large volume to be uniformly magnetized at B > 1.2 T, with constraints regarding the inner instrumented volume as well as the external region, where no massive structures are allowed and only an extremely low stray field is admitted. In this paper we report the main technical challenges and the relevant design options providing a comprehensive design for the magnet of the SHiP Scattering and Neutrino Detector., Minor revision, mainly to report more information concerning the analytics

49. Fast simulation of muons produced at the SHiP experiment using Generative Adversarial Networks

Author: S. Buontempo, Volodymyr Rodin, L. Shihora, A.S. Novikov, Nicola D'Ambrosio, I. Kadenko, A. Golovatiuk, R. A. Fini, Oksana Shadura, Anne-Marie Magnan, P. Dipinto, Oleg Ruchayskiy, Ciro Visone, W. Schmidt-Parzefall, Mitsuhiro Nakamura, M. Ehlert, J.-M. Lévy, Yury Guz, Alexander Malinin, Vadim Kostyukhin, Claudio O. Dib, K. Filippov, G. Gavrilov, M. M. Khabibullin, F. Bardou, Nicolò Tosi, Yosuke Suzuki, G. Granich, Alexey A. Petrov, E. Kurbatov, S. Dmitrievskiy, Davide Tommasini, Yu. Zaytsev, Arnaud Dubreuil, J. L. Tastet, D. Grenier, E. Khalikov, P. Zarubin, V. Poliakov, L. Golinka-Bezshyyko, M. Manfredi, V. Venturi, V. Tioukov, Giuseppe D'Appollonio, Iaroslava Bezshyiko, Edmundo Lopez Sola, V. Drohan, A. B. R. Cavalcante, A. A. Rademakers, A. Calcaterra, Gianluigi Arduini, Lesya Shchutska, H. Shibuya, S. V. Waasen, P. Wertelaers, D. Bick, Andrea Prota, Adrian Fabich, Alexander Mclean Marshall, Mario Campanelli, Stefania Xella, David Milstead, M. D. Skorokhvatov, Michael Wurm, A. Dolmatov, Yu. Mikhaylov, Dmitry Golubkov, Vladimir Samsonov, Elena Graverini, J. S. Schliwinski, I. Korol’ko, A. U. Yilmazer, Heiko Lacker, A. K. Managadze, A. S. Ull, M. Rinaldesi, L. A. Dougherty, M. Torii, A. L. Grandchamp, A. Iuliano, Annarita Buonaura, Alexander E. Shustov, A. Mefodev, V. Ivantchenko, S. Simone, G. Rosa, Christopher Betancourt, Pavel Shatalov, Y. Berdnikov, M. de Magistris, P. Dergachev, L. Stoel, L. Lopes, Volker Büscher, R. Froeschl, John Osborne, Victor Maleev, Brennan Goddard, R. Jacobsson, Seok Kim, E. V. Atkin, S. Ogawa, Hans Dijkstra, D. Pereyma, Albert De Roeck, B. Kaiser, T. Shchedrina, A.V. Etenko, P. Kurbatov, V. P. Loschiavo, Ekaterina Kuznetsova, P. Teterin, Oleg Mineev, F. B. D. Santos, Yuki Manabe, V. Bayliss, Oleg Fedin, Patrick Owen, P. Pacholek, A. Blanco, P. Fonte, Nobuko Kitagawa, A. Saputi, P. S. Diaz, B. Opitz, B. Hosseini, D. Yilmaz, B. D. Park, A. Bagulya, Sung Keun Park, Toshiyuki Nakano, F. S. Galan, K. Kodama, Antonio Perillo-Marcone, A. M. Anokhina, S. Kormannshaus, K. Kershaw, O. Lantwin, G. M. Dallavalle, T. Enik, Y. A. Gornushkin, Naotaka Naganawa, Markus Cristinziani, Satoru Takahashi, Nicola Serra, S. Nasybulin, Valery V. Dmitrenko, A. Alexandrov, Patrick Robbe, M. Patel, J. Boehm, A. Hollnagel, J. Y. Sohn, Gareth J. Barker, D. A. Podgrudkov, B. Obinyakov, Yu. G. Kudenko, Mikhail Hushchyn, A. Crupano, K.-Y. Choi, Serge Smirnov, V.D. Samoylenko, J.-K. Woo, Sandro Cadeddu, L. Gatignon, D. Kolev, Philippe Mermod, L. G. Dedenko, Stefano Sgobba, Loretta Fabbri, Daniel Treille, C. Kamiscioglu, S. Vilchinski, P. Ninin, E. K. Platia, V. Gentile, Hiroki Rokujo, Kunihiro Morishima, I. Berezkina, T. Ruf, Samuel Silverstein, B. Storaci, J. Maalmi, A. Bay, N. Konovalova, C. Franco, Tiziano Rovelli, K. Petridis, Alexander Baranov, Andrea Miano, J.-L. Grenard, H. Vincke, G. Lanfranchi, R. Brundler, P. Chau, V. Shevchenko, D. De Simone, I. Zarubina, D. Domenici, Rosa Simoniello, Nikolaos Charitonidis, A. Pastore, Verena Kain, N. Owtscharenko, A. M. Guler, Inar Timiryasov, Giuliana Galati, G. Haefeli, M. Jonker, M. Casolino, Mikhail V. Gorshenkov, P. Venkova, V. E. Lyubovitskij, Osamu Sato, Maria Elena Stramaglia, J. D. C. Saraiva, A. Golutvin, A. S. Chepurnov, M. Bertani, Sergey E. Ulin, V. M. Grachev, M. Chernyavskiy, Kang Soo Lee, Kang Young Lee, Alexander E. Volkov, Adele Lauria, Alessandro Montanari, E. S. Savchenko, A. Rakai, Akira Nishio, A. Sokolenko, T. Fukuda, H. Hakobyan, Richard Brenner, G. Khoriauli, Matthew Fraser, F. Vannucci, R. Voronkov, T. Rawlings, Konstantin F. Vlasik, Maksym Ovchynnikov, Oleg Bezshyyko, Marco Villa, Fedor Ratnikov, Z. M. Uteshev, R. Tsenov, Marco Calviani, S. Ricciardi, G. L. Petkov, J. P. Prieto, Raffaele Albanese, S. Shirobokov, Shigeki Aoki, Mike Lamont, M. Bogomilov, V. Grichine, Andrey Ustyuzhanin, S. Mikado, S. T. Naing, Caren Hagner, Raffaele Fresa, C. S. Yoon, S. Bieschke, Maria Cristina Montesi, S. V. Donskov, Victor Kim, Volodymyr M. Gorkavenko, N. I. Starkov, I. W. Harris, S. Gorbunov, Sergey Kovalenko, C. Ahdida, Rainer Wanke, Dmitry Gorbunov, M. Ferro-Luzzi, I. Krasilnikova, Kyrylo Bondarenko, Mikhail Shaposhnikov, G. Felici, Yeong Gyun Kim, A. Kono, J. Borburgh, A. Kolesnikov, M. Prokudin, S. Marsh, W. Bonivento, N. Kondrateva, T. M. Roganova, F. L. Fabbri, A. Quercia, E. Solodko, Petr Andreevich Gorbounov, A. Datwyler, Liliana Congedo, N. Azorskiy, Giuseppe Iaselli, V. Kurochka, J. Chauveau, A. Shakin, John Back, F. Fedotovs, Antonia Di Crescenzo, A. Korzenev, Ko J. W., Y. Muttoni, F. Redi, G. Bencivenni, J. Gall, A. Khotyantsev, N. Gruzinskii, G. Vankova-Kirilova, Masahiro Komatsu, G. Khaustov, A. Chumakov, C. Hessler, A. Berdnikov, D. Joković, M. Battistin, Marco Bruschi, N. Okateva, V. Kolosov, Giovanni De Lellis, I. Korol, Alexey Boyarsky, Karel Cornelis, D. Sukhonos, N. D. Marco, Alessandro Paoloni, Paolo Ciambrone, Eric van Herwijnen, Natalia Polukhina, S. Movchan, D. Breton, J. Bauche, S. Gerlach, Marilisa De Serio, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), SHiP, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Ahdida, C., Albanese, R., Buontempo, S., Cadeddu, S., Calcaterra, A., De Lellis, G., De Magistris, M., Iuliano, A., Lauria, A., Montesi, M. C., Sokolenko, A., Solodko, E., Starkov, N., Stoel, L., Storaci, B., Stramaglia, M. E., Sukhonos, D., Suzuki, Y., Takahashi, S., Tastet, J. L., Teterin, P., Naing, S. T., Timiryasov, I., Tioukov, V., Tommasini, D., Torii, M., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., Venkova, P., Venturi, V., and Et, Al
Subjects: Technology, Physics - Instrumentation and Detectors, Proton, Physics::Instrumentation and Detectors, Computer science, background: induced, Nuclear Theory, Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc), Simulation methods and programs, 01 natural sciences, 09 Engineering, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], muon: momentum, Detectors and Experimental Techniques, Nuclear Experiment, physics.ins-det, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Instrumentation, Instruments & Instrumentation, Mathematical Physics, 02 Physical Sciences, interaction of photons with matter, Instrumentation and Detectors (physics.ins-det), p: beam, muon: production, Detector modelling and simulations I, Nuclear & Particles Physics, interaction of hadrons with matter, Particle Physics - Experiment, performance, data analysis method, Detector modelling and simulations I (interaction of radiation with matter, FOS: Physical sciences, Accelerator Physics and Instrumentation, 0103 physical sciences, numerical methods, ddc:610, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Aerospace engineering, 010306 general physics, numerical calculations, etc), Muon, Science & Technology, hep-ex, 010308 nuclear & particles physics, business.industry, Numerical analysis, Acceleratorfysik och instrumentering, CERN SPS, Physics::Accelerator Physics, High Energy Physics::Experiment, business, Generative grammar
Abstract: This paper presents a fast approach to simulating muons produced in interactions of the SPS proton beams with the target of the SHiP experiment. The SHiP experiment will be able to search for new long-lived particles produced in a 400~GeV$/c$ SPS proton beam dump and which travel distances between fifty metres and tens of kilometers. The SHiP detector needs to operate under ultra-low background conditions and requires large simulated samples of muon induced background processes. Through the use of Generative Adversarial Networks it is possible to emulate the simulation of the interaction of 400~GeV$/c$ proton beams with the SHiP target, an otherwise computationally intensive process. For the simulation requirements of the SHiP experiment, generative networks are capable of approximating the full simulation of the dense fixed target, offering a speed increase by a factor of $\mathcal{O}(10^6)$. To evaluate the performance of such an approach, comparisons of the distributions of reconstructed muon momenta in SHiP's spectrometer between samples using the full simulation and samples produced through generative models are presented. The methods discussed in this paper can be generalised and applied to modelling any non-discrete multi-dimensional distribution., Comment: 20 pages, 7 figures, amended as per JINST reviewer comments

50. HiRadMat: A newirradiation facility for material testing at CERN

Author: Efthymiopoulos, I., Hessler, C., Gaillard, H., Grenier, D., Meddahi, M., Trilhe, P., Pardons, A., Theis, C., Nikolaos CHARITONIDIS, Evrard, S., Vincke, H., and Lazzaroni, M.

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