CERN Accelerating science

CERN Published Articles

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2017-05-29
07:16
ATLAS SM VH(bb) Run-2 Search / Buzatu, Adrian (Glasgow U.)
The Higgs boson discovered at the LHC in 2012 has been observed coupling directly to $W$ and $Z$ bosons and to $\tau$ leptons, and indirectly to top quarks. In order to probe whether it is indeed the particle predicted by the Standard Model, direct couplings of the Higgs boson to quarks must also be measured. [...]
arXiv:1612.01656.- SISSA, 2016-10-31 - 4 p. - Published in : PoS: ICHEP2016 (2016) , pp. 898 Fulltext: arXiv:1612.01656 - PDF; PoS(ICHEP2016)898 - PDF;
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.898

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2017-05-29
06:05
Overview of the Large Hadron Collider and of the ATLAS and CMS experiments / Nisati, Aleandro (INFN, Rome) ; Sharma, Vivek (UC, San Diego)
The Large Hadron Collider is the most powerful particle accelerator ever built. It has allowed the discovery of a Higgs boson with mass near 125 GeV in 2012 by the ATLAS and CMS experiments. [...]
2016 - 24 p. - Published in : 10.1142/9789814425452_0004

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2017-05-27
07:19
Measurement of basic characteristics and gain uniformity of a triple GEM detector / Patra, Rajendra Nath (Calcutta, VECC) ; Singaraju, Rama N. (Calcutta, VECC) ; Biswas, Saikat (CAPSS, Kolkata) ; Ahammed, Zubayer (Calcutta, VECC) ; Nayak, Tapan K. (Calcutta, VECC ; CERN) ; Viyogi, Yogendra P. (Calcutta, VECC)
Large area Gas Electron Multiplier (GEM) detectors have been the preferred choice for tracking devices in major nuclear and particle physics experiments. Uniformity over surface of the detector in terms of gain, energy resolution and efficiency is crucial for the optimum performance of these detectors. [...]
arXiv:1705.03849.- 2017-08-01 - 6 p. - Published in : Nucl. Instrum. Meth. A 862 (2017) 25-30 Fulltext: PDF;

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2017-05-27
07:05
Fragmentation contributions to hadroproduction of prompt $J/\psi$, $\chi_{cJ}$, and $\psi(2S)$ states / Chung, Hee Sok (CERN)
We compute leading-power fragmentation corrections to hadroproduction of charmonium states J/ψ, χcJ , and ψ(2S) in the nonrelativistic QCD factorization formalism. We include fragmentation functions through order α 2 s and parton production cross sections through order α 3 s . [...]
SISSA, 2016 - 4 p. - Published in : PoS: ICHEP2016 (2016) , pp. 848 Fulltext: PDF; External link: PoS server
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.848

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2017-05-27
07:05
Measuring the Higgs-charm coupling with heavy quarkonia / Chung, Hee Sok (CERN)
We present a calculation of the Higgs boson decay into a quarkonium plus a photon and show that the branching ratio is sensitive to both the magnitude and sign of the Higgs-heavy quark coupling. Our numerical results include relativistic corrections, as well as logarithms of the Higgs mass divided by the heavy quark mass resummed to all orders in αs , which is carried out in the next-to-leading logarithmic accuracy. [...]
SISSA, 2016 - 4 p. - Published in : PoS: ICHEP2016 (2016) , pp. 847 Fulltext: PDF; External link: PoS server
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.847

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2017-05-27
07:05
Correlations in small systems with ALICE / Lakomov, Igor (CERN) /ALICE
ALICE is dedicated to the study of the strongly interacting matter, the so-called Quark-Gluon Plasma (QGP), formed in heavy-ion collisions at the LHC. In addition, ALICE also actively participated in the pp and p–Pb collision programs. [...]
SISSA, 2016 - 5 p. - Published in : PoS: ICHEP2016 (2016) , pp. 356 Fulltext: PDF; External link: PoS server
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.356

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2017-05-27
07:05
Kipper – a Grid bridge to Identity Federation / Kiryanov, Andrey (St. Petersburg, INP) ; Manzi, Andrea (CERN) ; Keeble, Oliver (CERN)
SISSA, 2016 - 7 p. - Published in : PoS: ISGC2016 (2016) , pp. 017 Fulltext: PDF; External link: PoS server
In : Proceedings, International Symposium on Grids and Clouds 2016: Ubiquitous e-infrastructures and Applications, Taipei, Taiwan, 13 - 18 Mar 2016, pp.017

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2017-05-27
07:05
Intrabeam Scattering / Martini, Michel (CERN) ; Antoniou, Fanouria (CERN) ; Papaphilippou, Yannis (CERN)
2016 - 22 p. - Published in : ICFA Beam Dyn. Newsl.: 69 (2016) , pp. 38-59 Fulltext: PDF; External link: ICFA

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2017-05-27
07:05
Cryogenic Current Comparator for Storage Rings and Accelerators / Geithner, Rene (Helmholtz Inst., Jena ; Jena U.) ; Fernandes, Miguel (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Kurian, Febin (Darmstadt, GSI) ; Neubert, Ralf (Jena U.) ; Reeg, Hansjörg (Darmstadt, GSI) ; Schwickert, Marcus (Darmstadt, GSI) ; Seidel, Paul (Jena U.) ; Sieber, Thomas (Darmstadt, GSI) ; Stöhlker, Thomas (Darmstadt, GSI ; Helmholtz Inst., Jena ; Jena U.)
A Cryogenic Current Comparator (CCC) was developed for a non-destructive, highly sensitive monitoring of nA beams at the planned FAIR accelerator facility at GSI. The sensor part of the CCC was optimized for lowest possible noise-limited current resolution in combination with a high system bandwidth of about 200 kHz. [...]
2016 - 5 p. - Published in : 10.18429/JACoW-IBIC2015-MOPB013 Fulltext: PDF;
In : International Beam Instrumentation Conference , Melbourne, Australia, 13 - 17 Sep 2015, pp.MOPB013

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2017-05-27
07:05
Challenges of arbitrary waveform signal detection by Silicon Photomultipliers as readout for Cherenkov fibre based beam loss monitoring systems / Vinogradov, Sergey (Cockcroft Inst. Accel. Sci. Tech. ; Lebedev Inst. ; Liverpool U.) ; Devlin, Lee (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Nebot del Busto, Eduardo (Liverpool U. ; CERN) ; Kastriotou, Maria (Liverpool U. ; CERN) ; Welsch, Carsten P (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.)
Silicon Photomultipliers (SiPMs) are well recognised as very competitive photodetectors due to their exceptional photon number and time resolution, room-temperature low-voltage operation, insensitivity to magnetic fields, compactness, and robustness. Detection of weak light pulses of nanosecond time scale appears to be the best area for SiPM applications because in this case most of the SiPM drawbacks have a rather limited effect on its performance. [...]
SISSA, 2015 - Published in : PoS: PhotoDet2015 (2016) , pp. 070 Fulltext: PDF; External link: PoS server

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