CERN Accelerating science

CERN Document Server Sök i 76 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.65 sekunder. 
1.
Resonant emittance mixing of flat beams in plasma accelerators / Diederichs, Severin (DESY ; CERN) ; Benedetti, Carlo (LBL, Berkeley) ; Pousa, Angel Ferran (DESY) ; Sinn, Alexander (DESY) ; Osterhoff, Jens (DESY ; LBL, Berkeley) ; Schroeder, Carl B. (LBL, Berkeley ; UC, Berkeley, Nucl. Eng. Dept.) ; Thévenet, Maxence (DESY)
Linear colliders rely on high-quality flat beams to achieve the desired event rate, while avoiding potentially deleterious beamstrahlung effects. [...]
arXiv:2403.05871.
- 10.
Fulltext
2.
Euclid. I. Overview of the Euclid mission / Euclid Collaboration
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. [...]
arXiv:2405.13491.
- 94.
Fulltext
3.
Measurement of the forward η meson production rate in p-p collisions at $ \sqrt{\textrm{s}} $ = 13 TeV with the LHCf-Arm2 detector / Piparo, G. (INFN, Catania ; Catania U.) ; Adriani, O. (INFN, Florence ; Florence U.) ; Berti, E. (INFN, Florence ; Florence U.) ; Betti, P. (INFN, Florence ; Florence U.) ; Bonechi, L. (INFN, Florence ; Florence U.) ; Bongi, M. (INFN, Florence ; Florence U.) ; D'Alessandro, R. (INFN, Florence ; Florence U.) ; Detti, S. (INFN, Florence ; Florence U.) ; Hagenauer, M. (LLR, Palaiseau) ; Itow, Y. (Nagoya U., ISEE ; KMI, Nagoya) et al. /LHCf
The forward η mesons production has been observed by the Large Hadron Collider forward (LHCf) experiment in proton-proton collision at √s=13 TeV. This paper presents the measurement of the inclusive production rate of η in pT < 1.1 GeV/c, expressed as a function of the Feynman-x variable. [...]
arXiv:2305.06633; CERN-EP-2023-076.- Geneva : CERN, 2023-10-27 - 19 p. - Published in : JHEP 2310 (2023) 169 Draft (restricted): PDF; Fulltext: CERN-EP-2023-076 - PDF; 2305.06633 - PDF; document - PDF;
4.
Multiple Coulomb Scattering of muons in Lithium Hydride / MICE Collaboration
Multiple Coulomb Scattering (MCS) is a well known phenomenon occurring when charged particles traverse materials. Measurements of muons traversing low $Z$ materials made in the MuScat experiment showed that theoretical models and simulation codes, such as GEANT4 (v7.0), over-estimated the scattering. [...]
arXiv:2209.10251; RAL-P-2022-001; FERMILAB-PUB-22-729-AD-ND-PPD.- 2022-11-01 - 19 p. - Published in : Phys. Rev. D 106 (2022) 092003 Fulltext: FERMILAB-PUB-22-729-AD-ND-PPD - PDF; 2209.10251 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
5.
A Starry Byte — proton beam measurements of single event upsets and other radiation effects in ABCStar ASIC Versions 0 and 1 for the ITk strip tracker / Basso, M.J. (Toronto U.) ; Fernández-Tejero, J. (Simon Fraser U. ; TRIUMF) ; Gallop, B.J. (Rutherford) ; Greig, G. (Simon Fraser U.) ; John, J.J. (CERN) ; Keener, P.T. (Pennsylvania U.) ; Krizka, K. (LBL, Berkeley) ; Leitao, P.V. (CERN) ; Norman, B. (Carleton U.) ; Phillips, P.W. (Rutherford) et al.
Single Event Effects (SEEs) - predominately bit-flips in electronics caused by particle interactions - are a major concern for ASICs operated in high radiation environments such as ABCStar ASICs, which are designed to be used in the future ATLAS ITk strip tracker. The chip design is therefore optimised to protect it from SEEs by implementing triplication techniques such as Triple Modular Redundancy (TMR). [...]
arXiv:2203.12641.- 2022-03-21 - 34 p. - Published in : JINST Fulltext: document - PDF; 2203.12641 - PDF;
6.
Cosmology at high redshift — a probe of fundamental physics / Sailer, Noah (UC, Berkeley) ; Castorina, Emanuele (Milan U. ; CERN) ; Ferraro, Simone (LBNL, Berkeley ; UC, Berkeley (main)) ; White, Martin (UC, Berkeley ; LBNL, Berkeley)
An observational program focused on the high redshift ($2<z<6$) Universe has the opportunity to dramatically improve over upcoming LSS and CMB surveys on measurements of both the standard cosmological model and its extensions. Using a Fisher matrix formalism that builds upon recent advances in Lagrangian perturbation theory, we forecast constraints for future spectroscopic and 21-cm surveys on the standard cosmological model, curvature, neutrino mass, relativistic species, primordial features, primordial non-Gaussianity, dynamical dark energy, and gravitational slip. [...]
arXiv:2106.09713.- 2021-12-21 - 62 p. - Published in : JCAP 2112 (2021) 049 Fulltext: PDF;
7.
Performance of the MICE diagnostic system / Mice Collaboration
Muon beams of low emittance provide the basis for the intense, well-characterised neutrino beams of a neutrino factory and for multi-TeV lepton-antilepton collisions at a muon collider. The international Muon Ionization Cooling Experiment (MICE) has demonstrated the principle of ionization cooling, the technique by which it is proposed to reduce the phase-space volume occupied by the muon beam at such facilities. [...]
arXiv:2106.05813; RAL-P-2021-001.- 2021-08-16 - 27 p. - Published in : JINST 16 (2021) P08046 Fulltext: 2106.05813 - PDF; fermilab-pub-21-284-ad-nd - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
8.
The ABC130 barrel module prototyping programme for the ATLAS strip tracker / ATLAS Collaboration
For the Phase-II Upgrade of the ATLAS Detector, its Inner Detector, consisting of silicon pixel, silicon strip and transition radiation sub-detectors, will be replaced with an all new 100 % silicon tracker, composed of a pixel tracker at inner radii and a strip tracker at outer radii. The future ATLAS strip tracker will include 11,000 silicon sensor modules in the central region (barrel) and 7,000 modules in the forward region (end-caps), which are foreseen to be constructed over a period of 3.5 years. [...]
arXiv:2009.03197.- 2020-09-03 - 82 p. - Published in : JINST 15 (2020) P09004 Fulltext: PDF;
9.
CMB-S4: Forecasting Constraints on Primordial Gravitational Waves / CMB-S4 Collaboration
CMB-S4---the next-generation ground-based cosmic microwave background (CMB) experiment---is set to significantly advance the sensitivity of CMB measurements and enhance our understanding of the origin and evolution of the Universe, from the highest energies at the dawn of time through the growth of structure to the present day. [...]
arXiv:2008.12619 ; FERMILAB-PUB-20-468-AE-SCD.
- 24 p.
Fulltext - Fulltext
10.
Wide angle effects for peculiar velocities / Castorina, Emanuele (CERN ; UC, Berkeley (main)) ; White, Martin (UC, Berkeley (main) ; LBNL, Berkeley)
The line-of-sight peculiar velocities of galaxies contribute to their observed redshifts, breaking the translational invariance of galaxy clustering down to a rotational invariance around the observer. This becomes important when the line-of-sight direction varies significantly across a survey, leading to what are known as `wide angle' effects in redshift space distortions. [...]
arXiv:1911.08353; CERN-TH-2019-191.- 2020-10-22 - 13 p. - Published in : Mon. Not. R. Astron. Soc. 499 (2020) 893-905 Fulltext: PDF;

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