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CERN Published Articles

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2021-07-27
08:44
SEARCH FOR A NEW HEAVY RESONANCE IN FINAL STATES WITH DI-JET OR DI-\(b\)-JETS WITH THE ATLAS DETECTOR / Dong, Binbin (Shanghai Jiao Tong U.) /ATLAS Collaboration
A search of new heavy resonances decaying into a pair of jets in $pp$ collisions with the ATLAS detector at LHC is reported. The dataset corresponds to an integrated luminosity of up to 139$^{-fb}$ collected between 2015 and 2018 at $\sqrt{s}$ = 13 TeV.  No evidence of significant excess of events above the smooth background shape is observed [...]
2020 - 6 p. - Published in : Acta Phys. Pol. B 51 (2020) 1327-1332 Fulltext: PDF;
In : XXVI Cracow EPIPHANY Conference, LHC Physics: Standard Model and Beyond, Cracow, Poland, 7 - 10 Jan 2020, pp.1327-1332

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2021-07-27
08:44
The IRRAD Data Manager (IDM) / Gkotse, Blerina (CERN ; U. PSL) ; Jouvelot, Pierre (U. PSL) ; Pezzullo, Giuseppe (CERN) ; Ravotti, Federico (CERN)
The Proton Irradiation Facility (IRRAD) is a reference facility at CERN for characterizing detectors and other accelerator components against radiation. To ensure reliable facility operations and smooth experimental data handling, a new IRRAD Data Manager (IDM) web application has been developed and first used during the last facility run before the CERN Long Shutdown 2. [...]
2019 - 5 p. - Published in : 10.18429/JACoW-ICALEPCS2019-MOPHA048 Fulltext: PDF;
In : 17th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS), New York, United States, 5 - 11 Oct 2019, pp.MOPHA048

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2021-07-27
08:44
Experimental Results in the Extended Higgs Sector / Gerlach, Lino (Gottingen U., Zweites Phys. Inst.) /ATLAS Collaboration
An Extended Higgs sector could solve many problems of the Standard Model and is, therefore, investigated by several analyses of the ATLAS experiment at the LHC. Selected searches for additional Higgs bosons and other predicted effects of an extended Higgs sector based on 139 fb$^{-1}$ of data taken between 2015 and 2018 at a center-of-mass energy of 13 TeV are summarized..
2020 - 11 p. - Published in : Acta Phys. Pol. B 51 (2020) 1333-1343 Fulltext: PDF;
In : XXVI Cracow EPIPHANY Conference, LHC Physics: Standard Model and Beyond, Cracow, Poland, 7 - 10 Jan 2020, pp.1333-1343

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2021-07-27
08:44
Characterization of stilbene and EJ-276 scintillators coupled with a large area SiPM array for a fast neutron dose rate detector / Ferrulli, F (Caen U. ; CERN) ; Dinar, N (CERN) ; Manzano, L Gallego (CERN) ; Labalme, M (Caen U.) ; Silari, M (CERN)
A 1-inch stilbene and EJ-276 (plastic) organic scintillators were characterized in view of their use in a portable survey meter for fast neutron detection and dose rate measurements in radiation protection. They were coupled with a large area Silicon Photomultiplier (SiPM) array and characterized in terms of neutron/γ–ray (n/γ) discrimination capability, count rate linearity, count rate saturation effects, temperature stability and neutron detection efficiency. [...]
2021 - 10 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1010 (2021) 165566

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2021-07-27
08:44
On a poset of quantum exact promise problems / Combarro, Elías F ; Vallecorsa, Sofia ; Meglio, Alberto Di ; Piñera, Alejandro ; Rúa, Ignacio Fernández
Two of the most well-known quantum algorithms, those introduced by Deutsch–Jozsa and Bernstein–Vazirani, can solve promise problems with just one function query, showing an oracular separation with deterministic classical algorithms. In this work, we generalise those methods to study a family of quantum algorithms that can, with just one query, exactly solve promise problems stated over Boolean functions. [...]
2021 - 17 p. - Published in : Quantum Inf. Process. 20 (2021) 214 Fulltext: PDF;

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2021-07-22
17:45
Description of beam instabilities in synchrotrons with wakefields and space charge forces using the circulant matrix model / Buffat, X (CERN) ; Métral, E (CERN) ; Gottlob, E (Ecole Polytechnique, Lausanne ; U. Brussels (main)) ; Høgh, C (Ecole Polytechnique, Lausanne ; Imperial Coll., London) ; Oeftiger, A (Darmstadt, GSI ; CERN) ; Pieloni, T (Ecole Polytechnique, Lausanne)
A new model for the description of beam instabilities in synchrotrons featuring wakefields and space charge forces is proposed, using the circulant matrix approach. The predictions of this model are discussed in light of past ones, with a particular emphasis on the possible mitigation of the transverse mode coupling instability by space charge forces. [...]
2021 - 12 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 060101

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2021-07-22
17:45
First Results of the $^{140}$Ce(n,$\gamma$)$^{141}$Ce Cross-Section Measurement at n_TOF / n_TOF Collaboration
An accurate measurement of the $^{140}$Ce(n,$\gamma$) energy-dependent cross-section was performed at the n_TOF facility at CERN. This cross-section is of great importance because it represents a bottleneck for the s-process nucleosynthesis and determines to a large extent the cerium abundance in stars. [...]
2021 - 11 p. - Published in : Universe 7 (2021) 200 Fulltext: PDF;

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2021-07-22
17:45
Isotope Shifts of Radium Monofluoride Molecules / Udrescu, S M (MIT) ; Brinson, A J (MIT) ; Ruiz, R F Garcia (MIT ; CERN) ; Gaul, K (Philipps U. Marburg) ; Berger, R (Philipps U. Marburg) ; Billowes, J (Manchester U.) ; Binnersley, C L (Manchester U.) ; Bissell, M L (Manchester U.) ; Breier, A A (Kassel U.) ; Chrysalidis, K (CERN) et al.
Isotope shifts of $^{223-226,228}$ Ra$^{19}$F were measured for different vibrational levels in the electronic transition $A^2 \Pi_{1/2} \leftarrow X^2 \Sigma^+$. The observed isotope shifts demonstrate the particularly high sensitivity of radium monofluoride to nuclear size effects, offering a stringent test of models describing the electronic density within the radium nucleus [...]
2021 - 7 p. - Published in : Phys. Rev. Lett. 127 (2021) 033001

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2021-07-22
17:45
The Strip SiPM: a study of single photon time resolution / Doroud, K (CERN ; World Lab., Geneva ; Gangneung-Wonju Natl. U.) ; Kim, D W (Gangneung-Wonju Natl. U.) ; Kwon, K H (Gangneung-Wonju Natl. U.) ; Liu, Z (CAS, SIAT, Shenzhen) ; Min, B G (Gangneung-Wonju Natl. U.) ; Williams, M C S (CERN ; World Lab., Geneva ; INFN, Bologna ; U. Bologna, DIFA) ; Zichichi, A (CERN ; INFN, Bologna ; U. Bologna, DIFA ; Enrico Fermi Ctr., Rome)
The Strip Silicon PhotoMultiplier (SiPM) allows a photosensitive area to be created that has excellent time resolution coupled to good position resolution. However, as the SiPM is made larger it becomes more difficult to extract the signal produced by a single photon; we thus are using the NINO ASIC as the front-end amplifier. [...]
2021 - 11 p. - Published in : JINST 16 (2021) P06017 Fulltext: document - HTM; Doroud_2021_J._Inst._16_P06017 - PDF;

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2021-07-22
17:45
A neural network approach for efficient calculation of the current correction value in femtoampere range for a new generation of ionizing radiation monitors at CERN / Szumega, Jarosław M (CERN) ; Boukabache, Hamza (CERN) ; Perrin, Daniel (CERN)
The European Organization for Nuclear Research (CERN) conducts experiments that involve colliding beams of particles either together or into stationary targets. During these interactions, stray radiation may be generated [...]
2021 - 8 p. - Published in : 10.1016/j.radphyschem.2021.109539 Fulltext: PDF;

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