Article
Physics, Nuclear
M. Vadai, A. Alomainy, H. Damerau, M. Giovannozzi, A. Huschauer
Summary: This paper introduces a new radio-frequency beam manipulation technique and its combination with the barrier bucket gymnastics. The goal is to reduce beam losses and pave the way for high-intensity proton beams for future experiments.
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2022)
Review
Physics, Multidisciplinary
C. Hadjidakis, D. Kikola, J. P. Lansberg, L. Massacrier, M. G. Echevarria, A. Kusina, I. Schienbein, J. Seixas, H. S. Shao, A. Signori, B. Trzeciak, S. J. Brodsky, G. Cavoto, C. Da Silva, F. Donato, E. G. Ferreiro, I. Hrivnacova, A. Klein, A. Kurepin, C. Lorce, F. Lyonnet, Y. Makdisi, S. Porteboeuf Houssais, C. Quintans, A. Rakotozafindrabe, P. Robbe, W. Scandale, N. Topilskaya, A. Uras, J. Wagner, N. Yamanaka, Z. Yang, A. Zelenski
Summary: This study reviews the context, motivations, and expected performances of a comprehensive and ambitious fixed-target program using multi-TeV proton and ion LHC beams, as well as different possible technical implementations. It also discusses the possibilities offered by the use of the ALICE and LHCb detectors in fixed-target mode.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2021)
Article
Multidisciplinary Sciences
Dda Gschwendtner, Konstantin Lotov, Patric Muggli, Matthew Wing, Riccardo Agnello, Claudia Christina Ahdida, Maria Carolina Amoedo Goncalves, Yanis Andrebe, Oznur Apsimon, Robert Apsimon, Jordan Matias Arnesano, Anna-Maria Bachmann, Diego Barrientos, Fabian Batsch, Vittorio Bencini, Michele Bergamaschi, Patrick Blanchard, Philip Nicholas Burrows, Birger Buttenschon, Allen Caldwell, James Chappell, Eric Chevallay, Moses Chung, David Andrew Cooke, Heiko Damerau, Can Davut, Gabor Demeter, Amos Christopher Dexter, Steffen Doebert, Francesa Ann Elverson, John Farmer, Ambrogio Fasoli, Valentin Fedosseev, Ricardo Fonseca, Ivo Furno, Spencer Gessner, Aleksandr Gorn, Eduardo Granados, Marcel Granetzny, Tim Graubner, Olaf Grulke, Eloise Daria Guran, Vasyl Hafych, Anthony Hartin, James Henderson, Mathias Huether, Miklos Kedves, Fearghus Keeble, Vadim Khudiakov, Seong-Yeol Kim, Florian Kraus, Michel Krupa, Thibaut Lefevre, Linbo Liang, Shengli Liu, Nelson Lopes, Miguel Martinez Calderon, Stefano Mazzoni, David Medina Godoy, Joshua Moody, Kookjin Moon, Pablo Israel Morales Guzman, Mariana Moreira, Tatiana Nechaeva, Elzbieta Nowak, Collette Pakuza, Harsha Panuganti, Ans Pardons, Kevin Pepitone, Aravinda Perera, Jan Pucek, Alexander Pukhov, Rebecca Louise Ramjiawan, Stephane Rey, Adam Scaachi, Oliver Schmitz, Eugenio Senes, Fernando Silva, Luis Silva, Christine Stollberg, Alban Sublet, Catherine Swain, Athanasios Topaloudis, Nuno Torrado, Petr Tuev, Marlene Turner, Francesco Velotti, Livio Verra, Victor Verzilov, Jorge Vieira, Helmut Vincke, Martin Weidl, Carsten Welsch, Manfred Wendt, Peerawan Wiwattananon, Joseph Wolfenden, Benjamin Woolley, Samuel Wyler, Guoxing Xia, Vlada Yarygova, Michael Zepp, Giovanni Zevi Della Porta
Summary: Plasma wakefield acceleration is a promising technology for reducing the size of particle accelerators, and its progress has been demonstrated in the AWAKE program at CERN. The AWAKE collaboration is planning to conduct Run 2 to showcase stable accelerating gradients, preserve electron bunch characteristics, and develop scalable plasma sources. This scheme is expected to provide electron beams for particle physics experiments.
Article
Multidisciplinary Sciences
Sam Horrell, Danny Axford, Nicholas E. Devenish, Ali Ebrahim, Michael A. Hough, Darren A. Sherrell, Selina L. S. Storm, Ivo Tews, Jonathan A. R. Worrall, Robin L. Owen
Summary: The user manual for fixed target data collection at I24, Diamond Light Source provides detailed step-by-step instructions, figures, and videos to assist users in smooth data collection with serial data collection technique.
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
(2021)
Article
Astronomy & Astrophysics
Wen-Chen Chang, Jen-Chieh Peng, Stephane Platchkov, Takahiro Sawada
Summary: In this study, we investigate how the production of charmonium quark pairs at fixed-target energies can be used to constrain the gluon distribution in pions. The results show that the differential cross sections of pion-induced charmonium production with different longitudinal momentum fractions xF impose strong constraints on the quark and gluon probability distribution functions of the pion. It is found that pions with higher gluon densities provide a better description of the data. Furthermore, the production of the psi(2S) state is associated with a larger contribution from quark-antiquark pairs compared to J/psi.
Article
Physics, Nuclear
Ivan Karpov
Summary: In this paper, the authors investigate the single-bunch instabilities observed in the CERN Super Proton Synchrotron (SPS). The study demonstrates the existence of both radial and azimuthal mode-coupling instabilities in the SPS using the Oide-Yokoya approach and realistic longitudinal impedance model. The results align with macroparticle simulations and beam measurements, revealing the significant contribution of rf nonlinearity and potential-well distortion to these instability thresholds. The effect of the recent impedance reduction campaign on the stability of single- and double-rf configurations is also discussed.
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2023)
Article
Astronomy & Astrophysics
Ya-Ping Xie, V. P. Goncalves
Summary: This paper investigates the possibility of searching for hidden bottom pentaquark states in photon-induced interactions at the LHC, considering the enhancement in rapidity distribution due to the presence of the Pb resonance. Predictions for exclusive Upsilon photoproduction in fixed-target mode and the dominance of Pb resonance contribution under kinematic cuts are derived. Experimental analysis of Upsilon photoproduction in fixed-target collisions can provide complementary and independent checks of these states' existence and help understand their underlying nature.
Article
Physics, Nuclear
Marcin Patecki, Alessio Mereghetti, Daniele Mirarchi, Stefano Redaelli
Summary: The CERN accelerator complex is undergoing an upgrade to meet the requirements of the HL-LHC, including the need to increase beam intensity and address high losses in the system. A proposed collimation system aims to intercept and safely dispose of beam losses, with numerical simulations showing a cleaning efficiency of at least 80% and low sensitivity to machine errors, all while being cost efficient with minimal hardware changes.
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2021)
Article
Physics, Nuclear
Alessio Mereghetti, Francesco Cerutti, Robert B. Appleby
Summary: This study discusses the scraping system at the CERN Super Proton Synchrotron, its endurance test, and simulation results. The quantitative agreement between the test and simulation demonstrates the reliability and maturity of the simulation tool for predicting the performance of cleaning systems in circular accelerators.
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2021)
Article
Instruments & Instrumentation
G. Russo, F. Cerutti, L. S. Esposito, G. Franchetti, M. Giovannozzi, J. R. Hunt, A. Huschauer
Summary: This paper presents a method of crossing a horizontal nonlinear resonance to split a beam into multiple beamlets for multi-turn extraction from a circular particle accelerator. Through the use of diamond detectors, the horizontal beam emittance of the split beam was successfully measured for the first time in a regime of highly nonlinear beam dynamics. This result is crucial for evaluating the performance of the splitting process and designing further improvements.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Physics, Particles & Fields
S. Bailey, T. Cridge, L. A. Harland-Lang, A. D. Martin, R. S. Thorne
Summary: The new MSHT20 set of parton distribution functions (PDFs) of the proton, determined from global analyses of hard scattering data, includes updates such as improved parameterizations, new precise data, and NNLO QCD corrections. The NNLO fit is strongly favored over the NLO due to wider range and increased precision of data included in the fit, resulting in reduced uncertainties in predictions for processes such as Higgs, top quark pair, and W, Z production at post LHC Run-II energies.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Physics, Multidisciplinary
Chia-Yu Hsieh, Yu-Shiang Lian, Wen-Chen Chang, Jen-Chieh Peng, Stephane Platchkov, Takahiro Sawada
Summary: In this study, hadroproduction of J Iv and v(2S) at fixed-target energies was analyzed within the framework of non-relativistic QCD (NRQCD). A new determination of the color-octet long-distance matrix elements (LDMEs) was obtained using data from both pion and proton-induced processes. The contributions from qq and color-octet processes were found to be significantly enhanced at lower energies, with good agreement between pion-induced J Iv production data and NRQCD calculations using the newly obtained LDMEs. The sensitivity of pion-induced charmonium production data to the gluon density of pions was highlighted, favoring pion PDFs with relatively large gluon contents at large x values.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Ines Delfino, Valerio Ricciardi, Maria Lepore
Summary: Fourier transform infrared microspectroscopy using a synchrotron radiation source has great potential in studying the ionizing radiation effects on human cells. It has been successfully employed in shedding light on cell processes exposed to hadron therapy, and can contribute to the improvement of cancer treatment strategies.
APPLIED SCIENCES-BASEL
(2022)
Article
Instruments & Instrumentation
A. Gerbershagen, V. Andrieux, J. Bernhard, M. Brugger, O. Denisov, J. Friedrich, L. Gatignon, F. Gerigk, A. Guskov, B. Ketzer, F. Metzger, W. -d. Nowak, C. Quintans, S. Schuh
Summary: This contribution reviews the principles of RF separation and discusses its dependence on various beam optics and hardware parameters. It presents the initial examination of potential challenges in implementing the RF-separated beam for the Phase-2 of the AMBER experiment in the M2 beam line. Different beam optics settings were explored, offering either focused or parallel beams within the RF cavities. The separation and transmission capabilities of these settings are discussed, along with preliminary results on the purity and intensity of the RF-separated beam. It is found that while the required beam parameters for AMBER's kaonic Primakoff reactions, kaon spectroscopy, prompt-photon production, and kaon charge-radius programs can be met, the high intensity requirements of the AMBER Drell-Yan program cannot be achieved with an RF-separated beam.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Yuta Nakamura, Taisuke Takayanagi, Tomoki Uesaka, Mehmet Burcin Unlu, Yasutoshi Kuriyama, Yoshihiro Ishi, Tomonori Uesugi, Masanori Kobayashi, Nobuki Kudo, Sodai Tanaka, Kikuo Umegaki, Satoshi Tomioka, Taeko Matsuura
Summary: The study found that a submillimeter range accuracy can be achieved using a pulsed beam from a fixed-field alternating gradient accelerator, and the relative TOF method helps improve measurement precision.
Article
Physics, Nuclear
D. Adamova, G. Agakichiev, A. Andronic, D. Antonczyk, H. Appelshaeuser, V. Belaga, J. Bielcikova, P. Braun-Munzinger, O. Busch, A. Cherlin, S. Damjanovic, T. Dietel, L. Dietrich, A. Drees, W. Dubitzky, S. I. Esumi, K. Filimonov, K. Fomenko, Z. Fraenkel, C. Garabatos, P. Glaessel, G. Hering, J. Holeczek, M. Kalisky, Iu. Karpenko, G. Krobath, V. Kushpil, A. Maas, A. Marin, J. Milosevic, D. Miskowiec, Y. Panebrattsev, O. Petchenova, V. Petracek, S. Radomski, J. Rak, I. Ravinovich, P. Rehak, H. Sako, W. Schmitz, S. Schuchmann, S. Sedykh, S. Shimansky, J. Stachel, M. Sumbera, H. Tilsner, I. Tserruya, G. Tsiledakis, J. P. Wessels, T. Wienold, J. P. Wurm, S. Yurevich, V. Yurevich
Article
Physics, Nuclear
S. Machida, C. Prior, S. Gilardoni, M. Giovannozzi, A. Huschauer, S. Hirlander
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2017)
Article
Physics, Nuclear
S. Abernethy, A. Akroh, H. Bartosik, A. Blas, T. Bohl, S. Cettour-Cave, K. Cornelis, H. Damerau, S. Gilardoni, M. Giovannozzi, C. Hernalsteens, A. Huschauer, V. Kain, D. Manglunki, G. Metral, B. Mikulec, B. Salvant, J. -L. Sanchez Alvarez, R. Steerenberg, G. Sterbini, Y. Wu
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2017)
Article
Physics, Nuclear
Giuliano Franchetti, Simone Gilardoni, Alexander Huschauer, Frank Schmidt, Raymond Wasef
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2017)
Article
Physics, Nuclear
A. Huschauer, A. Blas, J. Borburgh, S. Damjanovic, S. Gilardoni, M. Giovannozzi, M. Hourican, K. Kahle, G. Le Godec, O. Michels, G. Sterbini, C. Hernalsteens
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2017)
Article
Physics, Nuclear
M. Migliorati, S. Aumon, E. Koukovini-Platia, A. Huschauer, E. Metral, G. Sterbini, N. Wang
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2018)
Article
Physics, Particles & Fields
R. Arnaldi, K. Banicz, K. Borer, J. Castor, B. Chaurand, W. Chen, C. Cicalo, A. Collis, P. Cortese, S. Damjanovic, A. David, A. De Falco, A. Devaux, L. Ducroux, H. En'yo, J. Fargeix, A. Ferretti, M. Floris, A. Foerster, P. Force, N. Guettet, A. Guichard, H. Gulkanian, J. M. Heuser, P. Jarron, M. Keil, L. Kluberg, Z. Li, C. Lourenco, J. Lozano, F. Manso, P. Martins, A. Masoni, A. Neves, H. Ohnishi, C. Oppedisano, P. Parracho, P. Pillot, T. Poghosyan, G. Puddu, E. Radermacher, P. Ramalhete, P. Rosinsky, E. Scomparin, J. Seixas, S. Serci, R. Shahoyan, P. Sonderegger, H. J. Specht, R. Tieulent, A. Uras, G. Usai, R. Veenhof, H. K. Woehri
EUROPEAN PHYSICAL JOURNAL C
(2019)
Article
Physics, Nuclear
A. Huschauer, H. Bartosik, S. Cettour Cave, M. Coly, D. Cotte, H. Damerau, G. P. Di Giovanni, S. Gilardoni, M. Giovannozzi, V Kain, E. Koukovini-Platia, B. Mikulec, G. Sterbini, F. Tecker
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2019)
Article
Physics, Nuclear
F. Asvesta, H. Bartosik, S. Gilardoni, A. Huschauer, S. Machida, Y. Papaphilippou, R. Wasef
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2020)
Article
Physics, Multidisciplinary
M. Giovannozzi, L. Huang, A. Huschauer, A. Franchi
Summary: Crossing the transition energy in a hadron circular accelerator has always been a delicate process, but with the development of stable resonances of the traverse phase space, a novel and non-adiabatic approach to perform a clean transition crossing has been proposed. By using sextupoles and octupoles to generate stable islands of the horizontal phase space, it is possible to perform a non-adiabatic change of the transition energy experienced by charged particles.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Physics, Nuclear
M. Vadai, A. Alomainy, H. Damerau, M. Giovannozzi, A. Huschauer
Summary: This paper introduces a new radio-frequency beam manipulation technique and its combination with the barrier bucket gymnastics. The goal is to reduce beam losses and pave the way for high-intensity proton beams for future experiments.
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2022)
Article
Instruments & Instrumentation
G. Russo, F. Cerutti, L. S. Esposito, G. Franchetti, M. Giovannozzi, J. R. Hunt, A. Huschauer
Summary: This paper presents a method of crossing a horizontal nonlinear resonance to split a beam into multiple beamlets for multi-turn extraction from a circular particle accelerator. Through the use of diamond detectors, the horizontal beam emittance of the split beam was successfully measured for the first time in a regime of highly nonlinear beam dynamics. This result is crucial for evaluating the performance of the splitting process and designing further improvements.
JOURNAL OF INSTRUMENTATION
(2022)
Proceedings Paper
Physics, Particles & Fields
F. Asvesta, H. Bartosik, A. Huschauer, Y. Papaphilippou
10TH INTERNATIONAL PARTICLE ACCELERATOR CONFERENCE
(2019)
Article
Physics, Multidisciplinary
M. Vadai, A. Alomainy, H. Damerau, S. Gilardoni, M. Giovannozzi, A. Huschauer