CERN Accelerating science

Preprints

最近の追加:
2021-10-22
07:49
Combined-function optics for circular high-energy hadron colliders / Giovannozzi, M. (CERN) ; Todesco, E. (CERN)
The design of future circular high-energy hadron colliders is based on the achievement of challenging magnetic fields, needed to keep the hadron beams orbiting along the ring circumference. [...]
arXiv:2109.13720.
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2021-10-21
19:36
Measurement of the inclusive and differential WZ production cross sections, polarization angles, and triple gauge couplings in pp collisions at $\sqrt{s} = $ 13 TeV
The associated production of a W and a Z boson is studied in final states with multiple leptons produced in proton-proton (pp) collisions at a centre-of-mass energy of 13 TeV using 137 fb$^{-1}$ of data collected with the CMS detector at the LHC. [...]
CERN-EP-2021-163 ; CMS-SMP-20-014-003.
- 2021.
Additional information for the analysis - CMS AuthorList - Fulltext

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2021-10-21
07:34
Recent results of $\text{D}^{0}$ mesons azimuthal anisotropy using the CMS detector / Bernardes, Cesar A. (Madrid U. ; Frankfurt U.)
In a relativistic heavy ion collision, heavy flavor (charm and bottom) quarks are mostly created via hard processes at the early stage of the collisions. [...]
arXiv:2110.09878.
- 6 p.
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2021-10-20
11:52
Tests of lepton universality using $B^0\to K^0_S \ell^+ \ell^-$ and $B^+\to K^{*+}\ell^+\ell^-$ decays
Tests of lepton universality in $B^0\to K^0_S \ell^+ \ell^-$ and $B^+\to K^{*+}\ell^+\ell^-$ decays where $\ell$ is either an electron or a muon are presented. [...]
CERN-EP-2021-208 ; arXiv:2110.09501 ; LHCB-PAPER-2021-038.
- 2021.
Fulltext - Related data file(s) - Supplementary information

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2021-10-20
09:50
Beam Instabilities in Circular Particle Accelerators / Metral, Elias (CERN)
The theory of impedance-induced bunched-beam coherent instabilities is reviewed following Laclare's formalism, adding the effect of an electronic damper in the transverse plane. [...]
CERN-ACC-SLIDES-2021-0001.
- 2021.

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2021-10-20
04:23
Thin Film (High Temperature) Superconducting Radiofrequency Cavities for the Search of Axion Dark Matter / Golm, J. (CERN) ; Arguedas Cuendis, S.  (CERN) ; Calatroni, S. (CERN) ; Cogollos, C. (ICC, Barcelona U.) ; Döbrich, B. (CERN) ; Gallego, J.D. (Yebes Astron. Ctr.) ; García Barceló, J.M.  (Cartagena Politecnica U.) ; Granados, X. (Barcelona, Autonoma U.) ; Gutierrez, J. (Barcelona, Autonoma U.) ; Irastorza, I.G. (Zaragoza U.) et al.
The axion is a hypothetical particle which is a candidate for cold dark matter. [...]
arXiv:2110.01296.
- 5 p.
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2021-10-20
04:14
Account of baryonic feedback effect in the $\gamma$-ray measurements of intergalactic magnetic fields / Bondarenko, Kyrylo (CERN ; Ecole Polytechnique, Lausanne) ; Boyarsky, Alexey (Leiden U.) ; Korochkin, Alexander (APC, Paris ; Moscow, INR ; Novosibirsk State U.) ; Neronov, Andrii (APC, Paris ; U. Geneva (main)) ; Semikoz, Dmitri (APC, Paris ; Moscow, INR ; Moscow Phys. Eng. Inst.) ; Sokolenko, Anastasia (OAW, Vienna)
Intergalactic magnetic fields in the voids of the large-scale structure can be probed via measurements of secondary gamma-ray emission from gamma-ray interactions with extragalactic background light. [...]
arXiv:2106.02690.
- 8 p.
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2021-10-20
04:13
Improving Variational Autoencoders for New Physics Detection at the LHC with Normalizing Flows / Jawahar, Pratik (CERN) ; Aarrestad, Thea (CERN) ; Pierini, Maurizio (CERN) ; Wozniak, Kinga A. (CERN) ; Ngadiuba, Jennifer (Fermilab) ; Duarte, Javier (UC, San Diego) ; Tsan, Steven (UC, San Diego)
We investigate how to improve new physics detection strategies exploiting variational autoencoders and normalizing flows for anomaly detection at the Large Hadron Collider. [...]
arXiv:2110.08508.
- 3 p.
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2021-10-18
13:10
Search for massive long-lived particles decaying semileptonically at $\sqrt{s}=13$ TeV / LHCb Collaboration
A search is performed for massive long-lived particles (LLP) decaying semileptonically into a muon and two quarks. [...]
arXiv:2110.07293 ; LHCb-PAPER-2021-028 ; CERN-EP-2021-186 ; LHCB-PAPER-2021-028.
- 2021.
Fulltext - Related data file(s) - Supplementary information - Fulltext

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2021-10-16
04:31
Sparse Data Generation for Particle-Based Simulation of Hadronic Jets in the LHC / Orzari, Breno (SPRACE) ; Tomei, Thiago (SPRACE) ; Pierini, Maurizio (CERN) ; Touranakou, Mary (CERN ; Athens Natl. Capodistrian U.) ; Duarte, Javier (UC, San Diego (main)) ; Kansal, Raghav (UC, San Diego (main)) ; Vlimant, Jean-Roch (Caltech, Pasadena (main)) ; Gunopulos, Dimitrios (Athens Natl. Capodistrian U.)
We develop a generative neural network for the generation of sparse data in particle physics using a permutation-invariant and physics-informed loss function. [...]
arXiv:2109.15197.
- 4 p.
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