# Published Articles

2018-01-12
06:31
 Longitudinal spin structure of the nucleon: COMPASS legacy / Bedfer, Yann (IRFU, Saclay, DPHN) /COMPASS The COMPASS collaboration has dedicated a large fraction of its already twenty year long existence to the study of the polarised structure of the nucleon. This presentation addresses two of the investigated aspects: inclusive measurements and direct measurements of the gluon polarised PDF, Δg. [...] 2018 - 6 p. - Published in : J. Phys. : Conf. Ser. 938 (2017) 012002 In : XVII WORKSHOP ON HIGH ENERGY SPIN PHYSICS, Dubna, Russia, 11 - 15 Sep 2017, pp.012002

2018-01-11
08:00
 Gravitational wave bursts from Primordial Black Hole hyperbolic encounters / Garcia-Bellido, Juan (Madrid, IFT ; CERN) ; Nesseris, Savvas (Madrid, IFT) We propose that Gravitational Wave (GW) bursts with millisecond durations can be explained by the GW emission from the hyperbolic encounters of Primordial Black Holes in dense clusters. These bursts are single events, with the bulk of the released energy happening during the closest approach, and emitted in frequencies within the AdvLIGO sensitivity range. [...] IFT-UAM-CSIC-17-049; arXiv:1706.02111.- 2017-12 - 4 p. - Published in : Phys. Dark Univ. 18 (2017) 123-126 Preprint: PDF;

2018-01-11
08:00
 Primordial Black Hole production in Critical Higgs Inflation / Ezquiaga, Jose Maria (Madrid, IFT ; UC, Berkeley) ; Garcia-Bellido, Juan (Madrid, IFT ; CERN) ; Ruiz Morales, Ester (Madrid U. ; CERN) Primordial Black Holes (PBH) arise naturally from high peaks in the curvature power spectrum of near-inflection-point single-field inflation, and could constitute today the dominant component of the dark matter in the universe. In this letter we explore the possibility that a broad spectrum of PBH is formed in models of Critical Higgs Inflation (CHI), where the near-inflection point is related to the critical value of the RGE running of both the Higgs self-coupling $\lambda(\mu)$ and its non-minimal coupling to gravity $\xi(\mu)$. [...] IFT-UAM-CSIC-17-043; arXiv:1705.04861.- 2018-01-10 - 5 p. - Published in : Phys. Lett. B 776 (2018) 345-349 Article from SCOAP3: PDF; Preprint: PDF;

2018-01-10
17:30
 Indications for the onset of deconfinement in nucleus nucleus collisions / NA49 collaboration The hadronic final state of central Pb+Pb collisions at 20, 30, 40, 80, and 158 AGeV has been measured by the CERN NA49 collaboration. The mean transverse mass of pions and kaons at midrapidity stays nearly constant in this energy range, whereas at lower energies, at the AGS, a steep increase with beam energy was measured. [...] nucl-ex/0410041; nucl-ex/0410041.- 2005 - 11 p. - Published in : 10.1142/9789812702227_0043 Fulltext: PDF; Preprint: PDF; In : 32nd International Conference on High-energy Physics, Beijing, China, 16 - 22 Aug 2004, pp.343-346

2018-01-10
06:52
 Coupling of Magneto-Thermal and Mechanical Superconducting Magnet Models by Means of Mesh-Based Interpolation / Maciejewski, Michał (CERN) ; Bayrasy, Pascal ; Wolf, Klaus ; Wilczek, Michał ; Auchmann, Bernhard ; Griesemer, Tina ; Bortot, Lorenzo (CERN) ; Prioli, Marco (CERN) ; Navarro, Alejandro Manuel Fernandez ; Schöps, Sebastian et al. In this paper we present an algorithm for the coupling of magneto-thermal and mechanical finite element models representing superconducting accelerator magnets. The mechanical models are used during the design of the mechanical structure as well as the optimization of the magnetic field quality under nominal conditions. [...] arXiv:1712.10191.- 2017 - 5 p. - Published in : 10.1109/TASC.2017.2786721 Preprint: PDF; External links: 00004 Comparison of the Lorentz force transfer at $t=14~\si{\milli\second}$ between COMSOL (left) and ANSYS (right) models.; 00000 Scheme of the one-way information exchange between magneto-thermal (red) and mechanical (black) models.; 00005 Equivalent stress in the coil at $t=14~\si{\milli\second}$.; 00001 Schematic of the standalone circuit with an 11 T dipole magnet powered by a power converter (PC) with a crowbar (S$\mathsf{_{CR}}$). Magnet is protected by a CLIQ system modelled as a charged capacitor bank and a thyristor triggered at $t=0~\si{\second}$.; 00002 Time evolution of the current discharge in two poles of a magnet following the CLIQ triggering. Dashed lines indicate time points for which results of mechanical analysis are reported.; 00003 Temperature comparison at $t=14~\si{\milli\second}$ between COMSOL (left) and ANSYS (right) models.

2018-01-10
06:52
 Measurement of the branching fractions and forward-backward asymmetries of the Z0 into light quarks / Grandi, Claudio (Bologna U.) Using approximately 4.3 million hadronic Z0 decays collected with the OPAL detector at LEP between 1990 and 1995, we measure the branching fractions of the zo into up-type and down-type light quarks, Rq, and the forward-backward asymmetries, AFB (q) . High-momentum stable particles are used to tag parton flavours and double tagged events are used to determine the flavour tagging efficiencies. [...] 1997 - 4 p. - Published in : (1997) , pp. 145-148 Fulltext: PDF; In : 32nd Rencontres de Moriond : Leptonic Session, Les Arcs, France, 15 - 22 Mar 1997, pp.145-148

2018-01-09
06:36
 Performance of μ-RWELL detector vs resistivity of the resistive stage / Bencivenni, G (Frascati) ; De Oliveira, R (CERN) ; Felici, G (Frascati) ; Gatta, M (Frascati) ; Morello, G (Frascati) ; Ochi, A (Kobe U.) ; Lener, M Poli (Frascati) ; Tskhadadze, E (Frascati) The $\mu$-RWELL is a compact spark-protected single amplification stage Micro-Pattern-Gaseous-Detector (MPGD). The detector amplification stage is realized with a polyimide structure, micro-patterned with a dense matrix of blind-holes, integrated into the readout structure. [...] 2018 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 886 (2018) 36-39 Fulltext: PDF;

2018-01-09
06:36
 A high resolution search for the tensor glueball / Seth, K K (Northwestern U.) /Crystal Barrel 1997 - 7 p. - Published in : (1997) , pp. 599-605 Fulltext: C97-03-22_P599 - PDF; 1997Seth - PDF; In : 32nd Rencontres de Moriond, Les Arcs, France, 22 - 29 Mar 1997, pp.599-605

2018-01-09
06:36
 Charmonium suppression in Pb - Pb collisions / Fleuret, F ; Abreu, M C ; Alessandro, B ; Alexa, C ; Astruc, J ; Baglin, C ; Baldit, A ; Bedjidian, M ; Bellaiche, F ; Beole, S et al. /NA50 1997 - 6 p. - Published in : (1997) , pp. 503-508 Fulltext: PDF; In : 32nd Rencontres de Moriond, Les Arcs, France, 22 - 29 Mar 1997, pp.503-508

2018-01-09
06:36
 Strangelet search and particle production studies in Pb + Pb collisions / Klingenberg, R ; Ambrosini, G ; Arsenescu, R ; Baglin, C ; Beringer, J ; Bohm, C ; Borer, K ; Bussiere, A ; Dittus, F ; Elsener, K et al. /NA52 1997 - 6 p. - Published in : (1997) , pp. 497-502 Fulltext: PDF; In : 32nd Rencontres de Moriond, Les Arcs, France, 22 - 29 Mar 1997, pp.497-502