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1.
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Laboratory realization of relativistic pair-plasma beams
/ Arrowsmith, C.D. (Oxford U.) ; Simon, P. (CERN ; Darmstadt, GSI) ; Bilbao, P.J. (Lisbon, IST) ; Bott, A.F. A. (Oxford U.) ; Burger, S. (CERN) ; Chen, H. (LLNL, Livermore) ; Cruz, F.D. (Lisbon, IST) ; Davenne, T. (Rutherford) ; Efthymiopoulos, I. (CERN) ; Froula, D.H. (Rochester U.) et al.
Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black holes and neutron star magnetospheres, where accretion-powered jets and pulsar winds are expected to be enriched with such pair plasmas. Their behaviour is quite different from typical electron-ion plasmas due to the matter-antimatter symmetry of the charged components and their role in the dynamics of such compact objects is believed to be fundamental. [...]
arXiv:2312.05244.-
2024-06-12 - 14 p.
- Published in : Nature Commun. 15 (2024) 5029
Fulltext: 2312.05244 - PDF; document - PDF;
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2.
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TF07 Snowmass Report: Theory of Collider Phenomena
/ Maltoni, F. (Louvain U., CP3 ; INFN, Bologna ; U. Bologna, DIFA) ; Su, S. (Arizona U.) ; Thaler, J. (MIT, Cambridge, CTP ; IAIFI, Cambridge ; Harvard U.) ; Aarrestad, T.K. (CERN) ; Aboubrahim, A. (Munster U., ITP) ; Adhikari, S. (Kansas U. ; Johns Hopkins U.) ; Agapov, I. (DESY) ; Agashe, K. (Maryland U.) ; Agrawal, P. (Oxford U., Theor. Phys.) ; Airen, S. (Maryland U.) et al.
Theoretical research has long played an essential role in interpreting data from high-energy particle colliders and motivating new accelerators to advance the energy and precision frontiers. [...]
arXiv:2210.02591 ; FERMILAB-FN-1203-QIS.
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22.
Fermilab Library Server - eConf - Fulltext - Fulltext
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3.
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Jets and Jet Substructure at Future Colliders
/ Bonilla, Johan (UC, Davis) ; Chachamis, Grigorios (LIP, Lisbon) ; Dillon, Barry M. (Heidelberg U.) ; Chekanov, Sergei V. (Argonne) ; Erbacher, Robin (UC, Davis) ; Gouskos, Loukas (CERN) ; Hinzmann, Andreas (Hamburg U.) ; Höche, Stefan (Fermilab) ; Huffman, B. Todd (Oxford U.) ; Kotwal, Ashutosh.V. (Duke U.) et al.
Even though jet substructure was not an original design consideration for the Large Hadron Collider (LHC) experiments, it has emerged as an essential tool for the current physics program. We examine the role of jet substructure on the motivation for and design of future energy frontier colliders. [...]
arXiv:2203.07462; FERMILAB-PUB-22-186-SCD-T.-
2022-06-22 - 38 p.
- Published in : Front. Phys. 10 (2022) 897719
Fulltext: 2203.07462 - PDF; jt - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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4.
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Generating ultra-dense pair beams using 400 GeV/c protons
/ Arrowsmith, C.D. (Oxford U.) ; Shukla, N. (CINECA) ; Charitonidis, N. (CERN) ; Boni, R. (Rochester U.) ; Chen, H. (LLNL, Livermore) ; Davenne, T. (Rutherford) ; Dyson, A. (Oxford U.) ; Froula, D.H. (Rochester U.) ; Gudmundsson, J.T. (Iceland U. ; Royal Inst. Tech., Stockholm) ; Huffman, B.T. (Oxford U.) et al.
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. [...]
arXiv:2011.04398.-
2021-05-11 - 9 p.
- Published in : Phys. Rev. Res.: 3 (2021) , no. 2, pp. 023103
Fulltext: PDF; Fulltext from publisher: PDF;
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5.
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Radiation hardness studies of AMS HV-CMOS 350 nm prototype chip HVStripV1
/ Kanisauskas, K (Oxford U. ; Glasgow U.) ; Affolder, A (Liverpool U.) ; Arndt, K (Oxford U.) ; Bates, R (Glasgow U.) ; Benoit, M (Geneva U.) ; Bello, F Di (Geneva U.) ; Blue, A (Glasgow U.) ; Bortoletto, D (Oxford U.) ; Buckland, M (CERN ; MIT) ; Buttar, C (Glasgow U.) et al.
CMOS active pixel sensors are being investigated for their potential use in the ATLAS inner tracker upgrade at the HL-LHC. The new inner tracker will have to handle a significant increase in luminosity while maintaining a sufficient signal-to-noise ratio and pulse shaping times. [...]
2017 - 18 p.
- Published in : JINST 12 (2017) P02010
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6.
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Study of built-in amplifier performance on HV-CMOS sensor for the ATLAS phase-II strip tracker upgrade
/ Liang, Z (UC, Santa Cruz, Inst. Part. Phys. ; Beijing, Inst. High Energy Phys.) ; Affolder, A (Liverpool U.) ; Arndt, K (Oxford U.) ; Bates, R (Glasgow U.) ; Benoit, M (Geneva U.) ; Di Bello, F (Geneva U.) ; Blue, A (Glasgow U.) ; Bortoletto, D (Oxford U.) ; Buckland, M (Liverpool U. ; CERN) ; Buttar, C (Glasgow U.) et al.
This paper focuses on the performance of analog readout electronics (built-in amplifier) integrated on the high-voltage (HV) CMOS silicon sensor chip, as well as its radiation hardness. Since the total collected charge from minimum ionizing particle (MIP) for the CMOS sensor is 10 times lower than for a conventional planar sensor, it is crucial to integrate a low noise built-in amplifier on the sensor chip to improve the signal to noise ratio of the system. [...]
2016 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 831 (2016) 156-160
In : 10th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Xi'an, China, 25 - 29 Sep 2015, pp.156-160
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7.
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Radiation hardness of two CMOS prototypes for the ATLAS HL-LHC upgrade project
/ Huffman, B T (U. Oxford (main)) ; Affolder, A (U. Liverpool (main)) ; Arndt, K (U. Oxford (main)) ; Bates, R (Glasgow U.) ; Benoit, M (U. Geneva (main)) ; Di Bello, F (U. Geneva (main)) ; Blue, A (Glasgow U.) ; Bortoletto, D (U. Oxford (main)) ; Buckland, M (U. Liverpool (main) ; CERN) ; Buttar, C (Glasgow U.) et al.
The LHC luminosity upgrade, known as the High Luminosity LHC (HL-LHC), will require the replacement of the existing silicon strip tracker and the transistion radiation tracker. Although a baseline design for this tracker exists the ATLAS collaboration and other non-ATLAS groups are exploring the feasibility of using CMOS Monolithic Active Pixel Sensors (MAPS) which would be arranged in a strip-like fashion and would take advantage of the service and support structure already being developed for the upgrade. [...]
AIDA-2020-PUB-2016-011.-
Geneva : CERN, 2016 - 14 p.
- Published in : JINST 11 (2016) C02005
IOP Open Access article: PDF;
In : Topical Workshop on Electronics for Particle Physics, Lisbon, Portugal, 28 Sep - 2 Oct 2015, pp.C02005
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8.
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9.
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ATLAS Phase II for the High Luminosity Upgrade
/ Huffman, B T (Oxford University)
After successful LHC operation at the center-of-mass energy of 7 and 8 TeV in 2011 and 2012, plans are actively advancing for a series of upgrades, culminating roughly 10 years from now in the high luminosity LHC (HL-LHC) project, delivering of order five times the LHC nominal instantaneous luminosity along with luminosity levelling. The final goal is to extend the data set from about few hundred fb-1 expected for LHC running to 3000 fb-1 by around 2030. [...]
ATL-UPGRADE-SLIDE-2013-791.-
Geneva : CERN, 2013 - 40 p.
Fulltext: PPTX; External link: Original Communication (restricted to ATLAS)
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