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CERN Accelerating science

Preprints

Najnovije dodano:
2021-05-05
12:30
Measurement of $CP$ asymmetry in $D^0 \to K^0_S K^0_S$ decays
A measurement of the $CP$ asymmetry in $D^0 \to K^0_S K^0_S$ decays is reported, based on a data sample of proton-proton collisions collected by the LHCb experiment from 2015 to 2018, corresponding to an integrated luminosity of 6 fb$^{-1}$. [...]
arXiv:2105.01565 ; CERN-EP-2021-058 ; LHCB-PAPER-2020-047.
- 2021.
Fulltext - Related data file(s) - Supplementary information

Detaljnije - Slični zapisi
2021-05-05
04:01
Covariant density and velocity perturbations of the quasi-Newtonian cosmological model in $f(T)$ gravity / Sami, Heba (UCT-CERN Res. Ctr.) ; Sahlu, Shambel (Vainu Bappu Observ. ; Addis Ababa U.) ; Abebe, Amare (UCT-CERN Res. Ctr.) ; Dunsby, Peter K.S. (Cape Town U., Dept. Math.)
We investigate classes of shear-free cosmological dust models with irrotational fluid flows within the framework of $f(T)$ gravity. [...]
arXiv:2105.00646.
- 30 p.
Fulltext

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2021-05-05
04:01
From Veltman's conditions to Finite Unification / Mondragón, M. (Mexico U.) ; Patellis, G. (Natl. Tech. U., Athens) ; Zoupanos, G. (Natl. Tech. U., Athens ; Munich, Max Planck Inst. ; CERN)
First we review Veltman's suggestion to attack the naturalness problem in the Standard model by requiring absence of quadratic divergences and the resulting mass formula. [...]
arXiv:2105.00235.
- 27 p.
Fulltext

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2021-05-05
04:00
Storage Rings and Gravitational Waves: Summary and Outlook / Berlin, A. (New York U.) ; Brüggen, M. (Hamburg U.) ; Buchmueller, O. (Imperial Coll., London) ; Chen, P. (Taiwan, Natl. Taiwan U.) ; D'agnolo, R.T. (IMCCE, Paris) ; Deng, R. (CAS, SARI, Shanghai) ; Ellis, J.R. (King's Coll. London) ; Ellis, S. (IMCCE, Paris) ; Franchetti, G. (Darmstadt, GSI) ; Ivanov, A. (Vienna U.) et al.
We report some highlights from the ARIES APEC workshop on ``Storage Rings and Gravitational Waves'' (SRGW2021), held in virtual space from 2 February to 18 March 2021, and sketch a tentative landscape for using accelerators and associated technologies for the detection or generation of gravitational waves..
arXiv:2105.00992 ; KCL-PH-TH/2021-28 ; CERN-TH-2021-068.
- 17 p.
Fulltext

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2021-05-05
04:00
Comparative evaluation of analogue front-end designs for the CMS Inner Tracker at the High Luminosity LHC / Emriskova, N. (CERN ; Strasbourg, IPHC)
The CMS Inner Tracker, made of silicon pixel modules, will be entirely replaced for the operation at the High Luminosity LHC. [...]
arXiv:2105.00070.
- 31 p.
Fulltext

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2021-05-05
04:00
The TopFlavor scheme in the context of $W'$ searches at LHC / Calabrese, Roberta (Naples U. ; INFN, Naples) ; De Iorio, Agostino (Naples U. ; INFN, Naples) ; Fiorillo, Damiano F.G. (Naples U. ; INFN, Naples) ; Iorio, Alberto Orso Maria (Naples U. ; INFN, Naples) ; Morisi, Stefano (Naples U. ; INFN, Naples) ; Miele, Gennaro (Naples U. ; INFN, Naples)
Many extensions of the Standard Model predict the existence of new charged or neutral gauge bosons, with a wide variety of phenomenological implications depending on the model adopted. [...]
arXiv:2104.06720.
- 11 p.
Fulltext

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2021-05-04
06:00
20-ps resolution Clock Distribution Network for a fast-timing single photon detector / Egidos, N (CERN) ; Ballabriga, R (CERN) ; Bandi, F (Seville U.) ; Campbell, M (CERN) ; Gascon, D (ICC, Barcelona U.) ; Gomez, S (ICC, Barcelona U.) ; Fernandez-Tenllado, J M (CERN) ; Llopart, X (CERN) ; Manera, R (ICC, Barcelona U.) ; Mauricio, J (ICC, Barcelona U.) et al.
The time resolution of active pixel sensors whose timestamp mechanism is based on Time-to-Digital Converters is critically linked to the accuracy in the distribution of the master clock signal that latches the timestamp values across the detector. [...]
2021. - 13 p.
fulltext from publisher

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2021-05-04
04:42
Search for $CP$ violation in $\Xi_b^- \to p K^- K^-$ decays / LHCb Collaboration
A search for $CP$ violation in charmless three-body $\Xi_b^- \to p K^- K^-$ decays is performed using $pp$ collision data recorded with the LHCb detector, corresponding to integrated luminosities of $1\,\text{fb}^{-1}$ at a centre-of-mass energy $\sqrt{s} = 7\,\text{TeV}$, $2\,\text{fb}^{-1}$ at $\sqrt{s} = 8\,\text{TeV}$ and $2\,\text{fb}^{-1}$ at $\sqrt{s} = 13\,\text{TeV}$. [...]
arXiv:2104.15074 ; LHCb-PAPER-2020-017 ; CERN-EP-2021-062.
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Fulltext

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2021-05-03
15:51
Performance of the ATLAS Level-1 topological trigger in Run 2
During LHC Run 2 (2015-2018) the ATLAS Level-1 topological trigger allowed efficient data-taking by the ATLAS experiment at luminosities up to 2.1x10$^{34}$ cm$^{-2}$s$^{-1}$, which exceeds the design value by a factor of two. [...]
CERN-EP-2021-040.
- 2021.
Fulltext - Previous draft version

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2021-05-01
04:40
Following in Tini's Giant Footsteps / Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn)
This paper describes my personal appreciation of some of Tini Veltman's great research achievements and how my own research career has followed the pathways he opened. [...]
arXiv:2104.14479 ; KCL-PH-TH/2021-27 ; CERN-TH-2021-067.
- 13 p.
Fulltext

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