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2018-10-23
17:16
New SC Algorithm for MAD-X / Schmidt, Frank (CERN) ; Alexahin, Yuri (Fermi National Accelerator Lab. (US))
MAD-X allows to simulate space-charge effects by approximating the macro-particle ensemble with a Gaussian distribution and using analytic formulas for calculation of the space-charge kick at locations which should be chosen in advance e.g [...]
CERN-ACC-2018-0036.
- 2018. - 20 p.

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2018-10-23
04:52
A beam-beam monitoring detector for the MPD experiment at NICA / Alvarado, Mauricio ; Ayala, Alejandro ; Ayala-Torres, Marco Alberto ; Bietenholz, Wolfgang ; Dominguez, Isabel ; Fontaine, Marcos ; González-Zamora, P. ; Montaño, Luis Manuel ; Moreno Barbosa, E. ; Salazar, Miguel Enrique Patiño et al.
The Multi-Purpose Detector (MPD) is to be installed at the Nuclotron Ion Collider fAcility (NICA) of the Joint Institute for Nuclear Research (JINR). [...]
arXiv:1809.10553.
- 15 p.
Fulltext

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2018-10-22
15:42
First measurement of charm production in fixed-target configuration at the LHC / Aaij, Roel (NIKHEF, Amsterdam)
The first measurement of heavy-flavour production by the LHCb experiment in its fixed-target mode is presented. [...]
CERN-EP-2018-266 ; arXiv:1810.07907 ; LHCB-PAPER-2018-023.
- 2018.
Fulltext - Related data file(s) - Supplementary information

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2018-10-22
13:20
Service Hybrids for the Silicon Strip Modules of the CMS Phase-2 Outer Tracker Upgrade / Feld, L ; Karpinski, Waclaw (Aachen, Tech. Hochsch.) ; Klein, Katja (Aachen, Tech. Hochsch.) ; Pauls, Alexander Josef (Aachen, Tech. Hochsch.) ; Pierschel, Gerhard (Aachen, Tech. Hochsch.) ; Preuten, Marius (Aachen, Tech. Hochsch.) ; Rauch, Max Philip (Aachen, Tech. Hochsch.) ; Roewert, Nicolas Maximilian (Aachen, Tech. Hochsch.) ; Wlochal, Michael (Aachen, Tech. Hochsch.)
This paper describes prototyping work for service hybrids, flexible circuits that form an integral part of the silicon strip modules to be used in the CMS Phase-2 Outer Tracker. The service hybrid is responsible for power distribution, data serialization, and opto-electrical conversion. [...]
CMS-CR-2018-271.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Antwerp, Belgique, 17 - 21 Sep 2018

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2018-10-22
13:17
The CMS Level-1 muon trigger for the LHC Run II / Heikkilae, Jaana Kristiina (Helsinki Inst. of Phys.) /CMS Collaboration
The CMS experiment uses a sophisticated two-level triggering system composed of hardware-based Level-1 Trigger, and a software-based High Level Trigger to select 1 kHz of events out of 40 MHz for later analysis. A new Level-1 trigger architecture improves the data taking performance at high luminosity experienced during Run II. [...]
CMS-CR-2018-263.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF;

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2018-10-22
13:13
A System-Verilog Verification Environment for the CIC Data Concentrator ASIC of the CMS Outer Tracker Phase-2 Upgrades / Scarfi', Simone (CERN) ; Caratelli, Alessandro (CERN) ; Caponetto, Luigi (Lyon, IPN) ; Ceresa, Davide (CERN) ; Galbit, Geoffrey Christian (Lyon, IPN) ; Kloukinas, Konstantinos (CERN) ; Yusuf Leblebici ; Nodari, Benedetta (Lyon, IPN) ; Viret, Sebastien (Lyon, IPN)
The foreseen Phase-2 upgrades at the LHC present very challenging requirements for the front-end readout electronics of the CMS Outer Tracker detector. High data rates in combination with the employment of a novel technique for rejecting locally low transverse momentum particles as well as the strict low power consumption constraints require the implementation of an optimized readout architecture and specific interconnect synchronization schemes for its components. [...]
CMS-CR-2018-282.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Antwerp, Belgique, 17 - 21 Sep 2018

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2018-10-22
13:07
Femtoscopic Bose-Einstein correlations of charged hadrons in pp collisions at 13 TeV / Padula, Sandra (SAO_PAULO) /CMS Collaboration
Femtoscopic correlations between charged hadrons are measured for minimum-bias and for high-multiplicity events in proton-proton collisions at $\sqrt s$ = 13 TeV. The results are based on data collected by the CMS detector at LHC in 2015. [...]
CMS-CR-2018-274.- Geneva : CERN, 2018 - 7 p. Fulltext: PDF;
In : 13th Workshop on Particle Correlations and Femtoscopy, Krakow, Poland, 22 - 26 May 2018

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2018-10-22
13:05
CMS event reconstruction status in Run 2 / Perrotta, Andrea (INFN, Bologna) /CMS Collaboration
LHC Run2 began in April 2015 With the restart of the collisions in the CERN Large Hadron Collider. In the perspective of the offline event reconstruction, the most relevant detector updates appeared in 2017 they were the restructuring of the pixel detector, with an additional layer closer to the beams, and the improved photodetectors and readout chips for the hadron calorimeter, which will eventually allow a finer longitudinal segmentation. [...]
CMS-CR-2018-269.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018

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2018-10-22
13:04
Searches for Light Higgs Bosons at the CMS Experiment / Choudhury, Somnath (Bangalore, Indian Inst. Sci.) /CMS Collaboration
The searches for light pseudoscalar Higgs bosons pair produced from the decay of the 125 GeV Higgs boson and resulting in various final states (4$\mu$, 2$\mu$2$\tau$, 2b2$\tau$) according to the mass of the light boson and searches for low mass scalar bosons below 125 GeV in decays to photon pairs will be summarised. The analyses are performed using data collected with the CMS experiment at the LHC from pp collisions at centre-of-mass energy of 13 TeV..
CMS-CR-2018-260.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018

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2018-10-22
13:04
Searches for extended Higgs boson sectors / Asawatangtrakuldee, Chayanit (DESY) /CMS Collaboration
Searches for beyond the standard model Higgs bosons are presented, particularly in the context of an extended Higgs boson sector containing more than the single Higgs doublet field of the standard model such as two-Higgs-doublet models, including a search for neutral Higgs boson decays into a $\rm b\bar b$ pair and a search for a heavy pseudoscalar boson decaying to a Z boson and a Higgs boson. The data collected with the CMS detector at the LHC at centre-of-mass energy of 13 TeV is used, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. [...]
CMS-CR-2018-259.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018

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