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CERN Accelerating science

Published Articles

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2021-06-23
06:01
Investigation of $\pi^+\pi^-, K^+\pi^-$ and $\pi^+K^-$ atoms for pion-pion and pion-kaon scattering length measurements / Yazkov, Valeriy (SINP, Moscow) /DIRAC Collaboration
Theory, using Low Energy QCD, calculated with high precision the $\pi\pi$ and $\pi K$ scattering length. Lifetime of $\pi^+\pi^−$ atoms are related with a difference of pion-pion s-wave scattering lengths with isospin 0 and 2: $|a_0 − a_2|$ [...]
DIRAC-CONF-2015-01.- 2015 - 6 p. External link: Fulltext
In : The XXII International Workshop High Energy Physics and Quantum Field Theory, Samara, Russia, 24 Jun - 1 Jul 2015

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2021-06-23
06:01
Experimental facilities in Latin America / Dib, C O (CCTVal, Valparaiso ; Valparaiso Ctr. Sci. Tech.)
These lecture notes briefly describe the current and planned experimental facilities for high-energy physics research in Latin America. The list is not exhaustive nor the descriptions are complete, but I tried to select some of the most representative facilities and large international experiments at the time. [...]
2021 - 27 p. - Published in : 10.23730/CYRSP-2021-002.193 Fulltext: PDF;
In : 2019 CERN-Latin-American School of High-Energy Physics, Villa General Belgrano, Argentina, 13 - 26 March, 2019, pp.193-219 (CERN-2021-002)

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2021-06-23
06:01
HPS@L1 algorithm for the upgraded CMS level-1 hadronic tau trigger for the HL-LHC / Bhowmik, Sandeep (NICPB, Tallinn) /CMS Collaboration
The High-Luminosity LHC will open an unprecedented window on the weak-scale nature of the universe, providing high-precision measurements of the standard model as well as searches for new physics beyond the standard model. The Compact Muon Solenoid (CMS) experiment is planning to replace entirely its trigger and data acquisition system to achieve this ambitious physics program. [...]
SISSA, 2020 - 5 p. - Published in : PoS LHCP2020 (2021) 211
In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.211

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2021-06-23
06:01
Beam-test evaluation of the precision timing capabilities of a CMS HGCAL prototype / Buchot Perraguin, Axel (Ecole Polytechnique) /CMS Collaboration
The existing CMS endcap calorimeters will be replaced by a High Granularity Calorimeter (HGCAL) for operation at the High Luminosity (HL) LHC which will start in 2027. Radiation hardness and excellent physics performance will be achieved by utilising silicon pad sensors and SiPM-on-scintillator tiles with high transverse and longitudinal segmentation. [...]
SISSA, 2020 - 5 p. - Published in : PoS LHCP2020 (2021) 209
In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.209

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2021-06-23
06:01
Probe $p_T$-dependent flow vector fluctuations with ALICE / Nielsen, Emil Gorm (Bohr Inst.) /ALICE Collaboration
One of the main goals of ultra-relativistic nuclear collisions is to create a new state of matter called the quark-gluon plasma (QGP) and study its properties. One of the experimental observables is the anisotropic flow $v_n$, defined as the correlation of the azimuthal angle of each particle with respect to a common symmetry plane $\Psi_n$. [...]
SISSA, 2020 - 5 p. - Published in : PoS LHCP2020 (2021) 207
In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.207

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2021-06-23
06:01
Report on outreach activities at LHC / Hatzifotiadou, Despina (Bologna U. ; INFN, Bologna) /ALICE Collaboration ; ATLAS Collaboration ; CMS Collaboration ; LHCb Collaboration
Outreach is undoubtedly an integral part of the scientific process. Reaching out to the public, explaining our results and sharing our enthusiasm, we try to motivate the youth, to clarify misconceptions about science and to ensure continued funding – to name but a few of our goals. [...]
SISSA, 2020 - 7 p. - Published in : PoS LHCP2020 (2021) 203
In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.203

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2021-06-23
06:01
Activity on the Sextupole Round Coil Superferric Magnet Prototype at LASA / Mariotto, Samuele ; Leone, Augusto ; Paccalini, Antonio ; Pasini, Alessandro ; Pedrini, Danilo ; Quadrio, Mauro ; Sorbi, Massimo ; Statera, Marco ; Todero, Maurizio ; Valente, Riccardo
The LASA Laboratory (INFN, Milan, Italy) is developing an unconventional type of superferric magnets suitable to arbitrary multipole order, which we refer to as round coil superferric magnets. This type of magnet is suitable for strain-sensitive superconductors because it uses round coils with large bending radius to create the magnetic field, while the round yoke with arbitrary multipoles is able to create the desired harmonic component for the magnet. [...]
2019 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4004505

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2021-06-23
06:01
Assembly and Tests of SQ02, a Nb$_{3}$Sn Racetrack Quadrupole Magnet for LARP / Ferracin, P (LBNL, Berkeley) ; Ambrosio, G (Fermilab) ; Barzi, E (Fermilab) ; Caspi, S (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Feher, S (Fermilab) ; Gourlay, S A (LBNL, Berkeley) ; Hafalia, A R (LBNL, Berkeley) ; Hannaford, C R (LBNL, Berkeley) ; Lizarazo, J (LBNL, Berkeley) et al.
The US LHC Accelerator Research Program (LARP) is developing Nb$_{3}$Sn accelerator magnets for a possible LHC luminosity upgrade. As part of the LARP supporting R&D;, a subscale racetrack quadrupole magnet (SQ) has been developed in order to provide a cost effective tool for technology development studies. [...]
2007 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 17 (2007) 1019-1022
In : Applied Superconductivity Conference, Seattle, WA, USA, 27 Aug - 1 Sep 2006, pp.1019-1022

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2021-06-23
06:01
Test and Analysis of Technology Quadrupole Shell (TQS) Magnet Models for LARP / Caspi, S (LBNL, Berkeley) ; Ambrosio, G (fermilab) ; Andreev, A N (Fermilab) ; Barzi, E (Fermilab) ; Bossert, R (Fermilab) ; Dietderich, D R (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Ghosh, A (Brookhaven Natl. Lab.) ; Hafalia, A R (LBNL, Berkeley) ; Kashikhin, V V (Fermilab) et al.
Test results are reported on four quadrupole magnet model tests (TQS01a, TQS01b, TQS01c, TQS02) in support of the development of a large-aperture Nb$_3$Sn superconducting quadrupole for the US LHC Accelerator Research Program (LARP). All four magnet assemblies used key and bladder technology to compress and support the coils within an iron yoke and an aluminum shell. [...]
2008 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 18 (2008) 179-183
In : 20th International Conference on Magnet Technology, Philadelphia, PA, USA, 27 - 31 Aug 2007, pp.179-183

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2021-06-23
06:01
Assembly and Test of a Support Structure for 3.6 m Long Nb$_3$Sn Racetrack Coils / Ferracin, P ; Ambrosio, G ; Anerella, M ; Caspi, S ; Cheng, D W ; Felice, H ; Hafalia, A R ; Hannaford, C R ; Lietzke, A F ; Lizarazo, J et al.
The LHC accelerator research program (LARP) is currently developing 4 m long Nb$_3$Sn quadrupole magnets for a possible upgrade of the LHC Interaction Regions (IR). In order to provide a reliable test bed for the fabrication and test of long Nb$_3$Sn coils, LARP has started the development of the long racetrack magnet LRS01. [...]
2008 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 18 (2008) 167-170
In : 20th International Conference on Magnet Technology, Philadelphia, PA, USA, 27 - 31 Aug 2007, pp.167-170

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