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CERN Document Server 2,038 records found  1 - 10nextend  jump to record: Search took 0.57 seconds. 
1.
(100)
Jarlskog determinant and data on flavor matrices / Kim, Jihn E. (Kyung Hee U.) ; Kim, Se-Jin (Kyung Hee U. ; CERN) ; Nam, Soonkeon (Kyung Hee U.) ; Shim, Myungbo (Kyung Hee U.)
The essences of the weak CP violation, the quark and lepton Jarlskog invariants, are determined toward future model buildings beyond the Standard Model (SM). The equivalence of two calculations of Jarlskog invariants gives a bound on the CP phase in some parametrization. [...]
arXiv:1907.12247.- 2020-08-17 - 14 p. - Published in : Mod. Phys. Lett. A 35 (2020) 2050261 Fulltext: PDF;
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2.
(91)
A possible relation between leptogenesis and PMNS phases / Covi, Laura (Gottingen U. ; CERN) ; Kim, Jihn E. (Pusan Natl. U.) ; Kyae, Bumseok (Pusan Natl. U. ; Korea Inst. Advanced Study, Seoul) ; Nam, Soonkeon (Kyung Hee U.)
The CP phase relevant in the leptogenesis is related to the PMNS phase in case only one CP phase appears in the full theory. Thus, the CP phase is introduced by spontaneous CP violation at a high energy scale toward realizing the successful Kobayashi-Maskawa electroweak CP violation. [...]
arXiv:1601.00411.- 2016-09-07 - 7 p. - Published in : Phys. Rev. D 94 (2016) 065004 APS Open Access article: PDF; Fulltext: arXiv:1601.00411 - PDF; 10.1103_PhysRevD.94.065004 - PDF; External link: Preprint
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3.
(33)
A perturbative study of holographic mABJM theory / Kim, Nakwoo (Kyung Hee U. ; Korea Inst. Advanced Study, Seoul) ; Kim, Se-Jin (Kyung Hee U. ; CERN)
Recently the calculation of holographic free energy for mass-deformed ABJM model (mABJM) with ${\cal N}=2$ supersymmetry and $SU(3)\times U(1)$ global symmetry was tackled by Bobev et al. in arXiv:1812.01026. [...]
arXiv:1904.09465.- 2019-10-10 - 15 p. - Published in : Phys. Lett. B 797 (2019) 134837 Article from SCOAP3: PDF; Fulltext: PDF;
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4.
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Perturbative solutions of ${\cal N}=1^*$ holography on $S^4$ / Kim, Nakwoo (Kyung Hee U. ; Korea Inst. Advanced Study, Seoul) ; Kim, Se-Jin (Kyung Hee U. ; CERN)
We apply the recently proposed perturbative technique to solve the supergravity BPS equations of ${\cal N}=1^*$ theories put on $S^4$. In particular, we have calculated the coefficients of the leading quartic terms exactly, in the expression of the universal part for the holographic free energy as a function of the mass parameters. [...]
arXiv:1904.02038.- 2019-07-29 - 15 p. - Published in : JHEP 1907 (2019) 169 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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5.
(26)
RPC based tracking system at CERN GIF++ facility / CMS Muon Collaboration
With the HL-LHC upgrade of the LHC machine, an increase of the instantaneous luminosity by a factor of five is expected and the current detection systems need to be validated for such working conditions to ensure stable data taking. At the CERN Gamma Irradiation Facility (GIF++) many muon detectors undergo such studies, but the high gamma background can pose a challenge to the muon trigger system which is exposed to many fake hits from the gamma background. [...]
arXiv:2211.16591; CMS-CR-2022-222.- Geneva : CERN, 2023-04-10 - 12 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1052 (2023) 168271 Fulltext: CR2022_222 - PDF; 2211.16591 - PDF;
In : 16th Workshop on Resistive Plate Chambers and Related Detectors (RPC 2022), CERN, Geneva, Switzerland, 26-30 Sep 2022, pp.168271
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Machine Learning based tool for CMS RPC currents quality monitoring / Shumka, E. (Sofiya U.) ; Samalan, A. (Gent U.) ; Tytgat, M. (Gent U.) ; Sawy, M. El (Brussels U.) ; Alves, G.A. (Rio de Janeiro, CBPF) ; Marujo, F. (Rio de Janeiro, CBPF) ; Coelho, E.A. (Rio de Janeiro, CBPF) ; Da Costa, E.M. (Rio de Janeiro State U.) ; Nogima, H. (Rio de Janeiro State U.) ; Santoro, A. (Rio de Janeiro State U.) et al. /CMS Muon Group
The muon system of the CERN Compact Muon Solenoid (CMS) experiment includes more than a thousand Resistive Plate Chambers (RPC). They are gaseous detectors operated in the hostile environment of the CMS underground cavern on the Large Hadron Collider where pp luminosities of up to $2\times 10^{34}$$\text{cm}^{-2}\text{s}^{-1}$ are routinely achieved. [...]
arXiv:2302.02764.- 2023-06-15 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1054 (2023) 168449 Fulltext: 2302.02764 - PDF; Publication - PDF;
In : 16th Workshop on Resistive Plate Chambers and Related Detectors (RPC 2022), CERN, Geneva, Switzerland, 26-30 Sep 2022, pp.168449
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Towards a two-dimensional readout of the improved CMS Resistive Plate Chamber with a new front-end electronics / CMS Collaboration
As part of the Compact Muon Solenoid experiment Phase-II upgrade program, new Resistive Plate Chambers will be installed in the forward region. High background conditions are expected in this region during the high-luminosity phase of the Large Hadron Collider, therefore an improved RPC design has been proposed with a new front-end electronics to sustain a higher rate capability and better time resolution. [...]
arXiv:2006.00576.- 2021-04-20 - 9 p. - Published in : JINST 16 (2021) C04001 Fulltext: PDF;
In : 15th Workshop on Resistive Plate Chambers and related detectors (RPC 2020), Roma, Italy, 10 - 14 Feb 2020, pp.C04001
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RPC upgrade project for CMS Phase II / CMS Muon Group Collaboration
The Muon Upgrade Phase II of the Compact Muon Solenoid (CMS) aims to guarantee the optimal conditions of the present system and extend the $\eta$ coverage to ensure a reliable system for the High Luminosity Large Hadron Collider (HL-LHC) period. The Resistive Plate Chambers (RPCs) system will upgrade the off-detector electronics (called link system) of the chambers currently installed chambers and place improved RPCs (iRPCs) to cover the high pseudo$-$rapidity region, a challenging region for muon reconstruction in terms of background and momentum resolution. [...]
arXiv:1806.11503.- 2020-05-29 - 10 p. - Published in : JINST 15 (2020) C05072 Fulltext: PDF;
In : 14th Workshop on Resistive Plate Chambers and Related Detectors (RPC2018), Puerto Vallarta, Mexico, 19 - 23 Feb 2018, pp.C05072
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High Rate RPC detector for LHC / Lagarde, F. (Lyon, IPN) ; Fagot, A. (Gent U.) ; Gul, M. (Gent U.) ; Roskas, C. (Gent U.) ; Tytgat, M. (Gent U.) ; Zaganidis, N. (Gent U.) ; Fonseca De Souza, S. (Rio de Janeiro State U.) ; Santoro, A. (Rio de Janeiro State U.) ; Torres Da Silva De Araujo, F. (Rio de Janeiro State U.) ; Aleksandrov, A. (Sofiya, Inst. Nucl. Res.) et al.
The High Luminosity LHC (HL-LHC) phase is designed to increase by an order of magnitude the amount of data to be collected by the LHC experiments. The foreseen gradual increase of the instantaneous luminosity of up to more than twice its nominal value of $10\times10^{34}\ {\rm cm}^{-1}{\rm s}^{-2}$ during Phase I and Phase II of the LHC running, presents special challenges for the experiments. [...]
arXiv:1807.05680.- 2019-10-23 - 10 p. - Published in : JINST 14 (2019) C10037 Preprint: PDF;
In : RPC 2018 - THE XIV WORKSHOP ON RESISTIVE PLATE CHAMBERS AND RELATED DETECTORS, Puerto Vallarta, Mexico, 19 - 23 Feb 2018, pp.C10037
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Effects of the electronic threshold on the performance of the RPC system of the CMS experiment / CMS Collaboration
Resistive Plate Chambers have a very important role as the dedicated system for muon triggering both in the barrel and in the endcap regions of the CMS experiment at the Large Hadron Collider. In order to optimize its performance, it is of primary importance to tune the electronic threshold of the front-end boards reading the signals from these detectors. [...]
arXiv:2005.09472; CMS-CR-2020-095.- Geneva : CERN, 2020-09-07 - 7 p. - Published in : JINST 15 (2020) C09025 Fulltext: CR2020_095 - PDF; 2005.09472 - PDF;
In : 15th Workshop on Resistive Plate Chambers and related detectors (RPC 2020), Roma, Italy, 10 - 14 Feb 2020, pp.C09025
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