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2020-09-25
04:09
Searching for small droplets of hydrodynamic fluid in proton–proton collisions at the LHC / Zhao, Wenbin (Peking U. ; Peking U., SKLNPT ; CICQM, Beijing) ; Zhou, You (Bohr Inst.) ; Murase, Koichi (Peking U., CHEP) ; Song, Huichao (Peking U. ; Peking U., SKLNPT ; CICQM, Beijing ; Peking U., CHEP)
In this paper, we investigate the hydrodynamic collectivity in high-multiplicity events of proton-proton collisions at $\sqrt{s}=$ 13 TeV, using iEBE-VISHNU hybrid model with three different initial conditions, namely, HIJING, super-MC and TRENTo. With properly tuned parameters, hydrodynamic simulations with each initial model give reasonable descriptions of the measured two-particle correlations, including the integrated and $p_{\rm T}$-differential flow for all charged and identified hadrons. [...]
arXiv:2001.06742.- 2020-09-12 - 11 p. - Published in : Eur. Phys. J. C 80 (2020) 846 Article from SCOAP3: PDF; Fulltext: PDF;

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2020-09-25
04:09
The experimental status of direct searches for exotic physics beyond the standard model at the Large Hadron Collider / Rappoccio, Salvatore (SUNY, Buffalo)
The standard model of particle physics is an extremely successful theory of fundamental interactions, but it has many known limitations. It is therefore widely believed to be an effective field theory that describes interactions near the TeV scale. [...]
arXiv:1810.10579.- 2019-11 - 33 p. - Published in : Rev. Phys.: 4 (2019) , pp. 100027 Fulltext: PDF;

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2020-09-24
08:59
Field experiences : fundamental science and research in the arts / Bello, Monica (CERN)
2019
In : On art and science, pp.203-221

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2020-09-24
04:09
Diffractive $\gamma \gamma$ production in $pp$ collisions at the LHC / Goncalves, V.P. (Pelotas U.) ; Martins, D.E. (Rio de Janeiro Federal U.) ; Rangel, M.S. (Rio de Janeiro Federal U.)
In this letter we estimate the contribution of the double diffractive processes for the diphoton production in $pp$ collisions at the Large Hadron Collider (LHC). The acceptance of the central and forward LHC detectors is taken into account and predictions for the invariant mass, rapidity and, transverse momentum distributions are presented. [...]
arXiv:2007.01826.- 2020-09-10 - 7 p. - Published in : Eur. Phys. J. C 80 (2020) 841 Article from SCOAP3: PDF; Fulltext: PDF;

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2020-09-23
04:36
A 4-Channel 10-Gbps/ch CMOS VCSEL Array Driver with on-chip Charge Pumps / Huang, X. (Hua-Zhong Normal U. ; Southern Methodist U.) ; Gong, D. (Southern Methodist U.) ; Sun, Q. (Southern Methodist U.) ; Chen, C. (Hua-Zhong Normal U. ; Southern Methodist U.) ; Guo, D. (Hua-Zhong Normal U.) ; Hou, S. (Taiwan, Inst. Phys.) ; Huang, G. (Hua-Zhong Normal U.) ; Kulis, S. (CERN) ; Liu, C. (Southern Methodist U.) ; Liu, T. (Southern Methodist U.) et al.
We present the design and test results of a 4-channel 10-Gbps/ch Vertical-Cavity Surface-Emitting Laser array driver, the cpVLAD. With on-chip charge-pumps to extend the biasing headroom for the VCSELs needed for low temperature operation and mitigation of the radiation effects. [...]
arXiv:2009.07121.- SISSA, 2020-02-24 - 5 p. - Published in : PoS: TWEPP2019 (2020) , pp. 048 Fulltext: PoS(TWEPP2019)048 - PDF; 2009.07121 - PDF;
In : TWEPP 2019 Topical Workshop on Electronics for Particle Physics, Santiago De Compostela, Spain, 2 - 6 Sep 2019, pp.048

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2020-09-22
04:49
Mid-board miniature dual channel optical transmitter MTx and transceiver MTRx / Zhao, Xiandong (Southern Methodist U.) ; Liu, Chonghan (Southern Methodist U.) ; Gong, Datao (Southern Methodist U.) ; Chen, Jinghong (Houston U.) ; Guo, D. (Southern Methodist U.) ; He, Huiqin (SZPT, Shenzhen) ; Hou, Suen (Taiwan, Inst. Phys.) ; Huang, Guangming (Hua-Zhong Normal U.) ; Li, Xiaoting (Hua-Zhong Normal U.) ; Liu, Tiankun (Southern Methodist U.) et al.
We report the development of a mid-board, TOSA and ROSA based miniature dual channel optical transmitter (MTx) and a transceiver (MTRx). The design transmission data rate is 5.12 Gbps per channel and receiving data rate 4.8 Gbps. [...]
arXiv:2009.08623.- 2016-03-24 - 7 p. - Published in : JINST 11 (2016) C03054 Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Lisbon, Portugal, 28 Sep - 2 Oct 2015, pp.C03054

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2020-09-21
16:58
Evaluation, Optimization and Test of a Standard Air Dielectric Coaxial Cable Filled with Oil for Possible Use in HV Kicker Systems at CERN / Kontelis, D (Natl. Tech. U., Athens) ; Ferrero Colomo, A (CERN) ; Gonos, I (Natl. Tech. U., Athens) ; Kramer, T (CERN) ; Stadlbauer, T (CERN)
Particular kicker systems at CERN use specialized SF6 (Sulphur hexafluoride) gas filled coaxial high voltage cables. Due to discontinued production, economic non-viability and possible environmental impacts, solutions for the replacement of these cables are being investigated. [...]
IEEE, 2018 - 4 p.
In : 2018 IEEE International Conference on High Voltage Engineering and Application, Athens, Greece, 10 - 13 Sep 2018, pp.1-4

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2020-09-19
06:00
A magneto-mechanical model for rotating-coil magnetometers / Sorti, Stefano (CERN ; Milan Polytechnic) ; Petrone, Carlo (CERN) ; Russenschuck, Stephan (CERN) ; Braghin, Francesco (Milan Polytechnic)
Rotating-coil magnetometers are among the most common transducers for measuring local and integral magnetic fields of accelerator magnets. The measurement uncertainty strongly depends on the mechanical properties of the shafts, bearings, drive systems, and supports. [...]
2020 - 9 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 984 (2020) 164599 External link: Fulltext from publisher

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2020-09-19
06:00
Self-localized solutions of the Kundu-Eckhaus equation in nonlinear waveguides / Bayındır, Cihan (Istanbul, Tech. U. ; Bogazici U. ; CERN)
In this paper we numerically analyze the 1D self-localized solutions of the Kundu-Eckhaus equation (KEE) in nonlinear wave guides using the spectral renormalization method (SRM) and compare our findings with those solutions of the nonlinear Schrödinger equation (NLSE). For cubic-quintic nonlinearity with Raman effect, as a benchmark problem we numerically construct single, dual and $N$-soliton solutions for the zero optical potential, i.e. [...]
2019 - 6 p. - Published in : Results Phys. 14 (2019) 102362 External link: Fulltext from publisher

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2020-09-19
06:00
Diffusion bonding of Cu atoms with molecular dynamics simulations / Xydou, A (CERN ; Patras U.) ; Parviainen, S (Helsinki U.) ; Djurabekova, F (Helsinki U. ; Moscow Phys. Eng. Inst.)
Diffusion bonding of copper disks is an important step during the assembly of accelerating structures -the main components of power radio-frequency linear accelerators-. During the diffusion bonding copper disks are subjected to pressure at high temperatures. [...]
2020 - 8 p. External link: Fulltext from publisher

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