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2017-06-27
15:21
Integrated CMOS sensor technologies for the CLIC tracker / Munker, Ruth Magdalena (University of Bonn (DE))
Integrated technologies are attractive candidates for an all silicon tracker at the proposed future multi-TeV linear e+e- collider CLIC. In this context CMOS circuitry on a high resistivity epitaxial layer has been studied using the ALICE Investigator test-chip. [...]
CLICdp-Conf-2017-011.- Geneva : CERN, 2017 - 5. Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017

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2017-06-27
10:11
Construction and first beam-tests of silicon-tungsten prototype modules for the CMS High Granularity Calorimeter for HL-LHC / Romeo, Francesco (Beijing, Inst. High Energy Phys.) /CMS Collaboration
The High Granularity Calorimeter (HGCAL) is the technology choice of the CMS collaboration for the endcap calorimetry upgrade planned to cope with the harsh radiation and pileup environment at the High Luminosity-LHC. The HGCAL is realized as a sampling calorimeter, including an electromagnetic compartment comprising 28 layers of silicon pad detectors with pad areas of 0.5 - 1.0 square centimetres interspersed with absorbers. [...]
CMS-CR-2017-169.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017

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2017-06-27
08:02
Exotic matter on singular divisors in F-theory / Klevers, Denis ; Morrison, David R. ; Raghuram, Nikhil ; Taylor, Washington
We analyze exotic matter representations that arise on singular seven-brane configurations in F-theory. We develop a general framework for analyzing such representations, and work out explicit descriptions for models with matter in the 2-index and 3-index symmetric representations of SU($N$) and SU(2) respectively, associated with double and triple point singularities in the seven-brane locus. [...]
arXiv:1706.08194; CERN-TH-2016-252; MIT-CTP-4878; UCSB-MATH-2017-07.- 2017-06-25 - 71 p.

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2017-06-27
08:02
$B$ decay anomalies from nonabelian local horizontal symmetry / Cline, James M. ; Martin Camalich, Jorge
Recent anomalies in $B\to K^{(*)}\ell\ell$ meson decays are consistent with exchange of a heavy $Z'$ vector boson. Here we try to connect such new physics to understanding the origin of flavor, by gauging generation number. [...]
arXiv:1706.08510; CERN-TH-2017-136.- 2017-06-26 - 12 p.

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2017-06-27
08:02
Production of muons from heavy-flavour hadron decays at forward rapidity in Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 5.02~{\rm TeV}$} / Zhang, Zuman /for the ALICE
The measurement of the production of single muons from heavy-flavour hadron decays at forward rapidity in Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 5.02~{\rm TeV}$ collected in 2015 is presented as a function of transverse momentum ($p_{\rm T}$) and collision centrality. A strong suppression of the yield is observed at high $p_{\rm T}$ in the most central collisions compared to the binary-scaled expectation from pp collisions at the same energy. [...]
arXiv:1706.07943.- 2017-06-24

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2017-06-27
08:02
A method and tool for combining differential or inclusive measurements obtained with simultaneously constrained uncertainties / Kieseler, Jan (CERN)
A method is discussed that allows combining sets of differential or inclusive measurements. It is assumed that at least one measurement was obtained with simultaneously fitting a set of nuisance parameters, representing sources of correlated systematic uncertainties. [...]
arXiv:1706.01681.- 2017-06-06 - 12 p. Fulltext: PDF;

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2017-06-27
08:02
Jet Production at RHIC and LHC / Cunqueiro, Leticia (CERN ; U. Munster)
Recent results on jet production in heavy ion collisions at RHIC and the LHC are discussed, with emphasis on inclusive jet yields and semi-inclusive hadron-triggered and vector boson-triggered recoil jet yields as well as their azimuthal angular correlations. I will also discuss the constraints that these observables impose on the opacity of the medium, the flavour dependence of energy loss, the interplay of perturbative and non perturbative effects and the change of the degrees of freedom of the medium with the resolution of the probe..
arXiv:1705.09839.- 2017-05-27 - 8 p. Fulltext: PDF;
In : The XXVI international conference on ultrarelativistic heavy-ion collisions, Chicago, United States Of America, 6 - 11 Feb 2017, pp.

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2017-06-27
08:01
Microscopic simulation of xenon-based optical TPCs in the presence of molecular additives / Azevedo, C.D.R. (Aveiro U.) ; González-Díaz, D. (CERN ; Santiago de Compostela U., IGFAE) ; Biagi, S.F. (Uludag U.) ; Oliveira, C.A.B. (LBNL, Berkeley) ; Henriques, C.A.O. (Coimbra U.) ; Escada, J. (Coimbra U.) ; Monrabal, F. (Texas U., Arlington) ; Gómez-Cadenas, J.J. (Valencia U., IFIC) ; Alvarez, V. ´ (Valencia U., IFIC) ; Benlloch-Rodríguez, J.M. (Valencia U., IFIC) et al.
We introduce a simulation framework for the transport of high and low energy electrons in xenon-based gaseous optical time projection chambers (OTPCs). The simulation relies on elementary cross sections (electron-atom and electron-molecule) and incorporates, in order to compute the gas scintillation, the reaction/quenching rates (atom-atom and atom-molecule) of the first 41 excited states of xenon and the relevant associated excimers, together with their radiative cascade. [...]
arXiv:1705.09481.- 2017-05-26 - 23 p. Fulltext: PDF;

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2017-06-27
08:01
Description of radiation damage in diamond sensors using an effective defect model / Kassel, Florian (KIT, Karlsruhe, EKP ; CERN) ; Guthoff, Moritz (CERN) ; Dabrowski, Anne (CERN) ; De Boer, Wim (KIT, Karlsruhe, EKP)
The BCML system is a beam monitoring device in the CMS experiment at the LHC. As detectors poly-crystalline diamond sensors are used. [...]
arXiv:1705.09324.- 2017-05-25 Fulltext: PDF;

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2017-06-27
06:47
Physics Opportunities with the FCC-hh Injectors / Goddard, B. (CERN) ; Isidori, G. (U. Zurich (main)) ; Teubert, F. (CERN) ; Bai, M. (Julich, Forschungszentrum) ; Ball, A. (CERN) ; Batell, B. (Pittsburgh U., Dept. Phil.) ; Bowcock, T. (Liverpool U.) ; Cavoto, G. (INFN, Rome) ; Ceccucci, A. (CERN) ; Chrzaszcz, M. (U. Zurich (main) ; Cracow, INP) et al.
In this chapter we explore a few examples of physics opportunities using the existing chain of accelerators at CERN, including potential upgrades. [...]
arXiv:1706.07667. - 2017. - 13 p.
00000 Schematic view of the CERN accelerators system viewed as injectors of the future FCC-hh collider (FHC). - 00001 Main functional layout of LHC as HEB as FCC-hh injector - Full text

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