CERN Accelerating science

CERN Preprints

Ostatnio dodane:
2022-08-10
07:39
Overcoming exponential scaling with system size in Trotter-Suzuki implementations of constrained Hamiltonians: 2+1 U(1) lattice gauge theories / Grabowska, Dorota M. (CERN) ; Kane, Christopher ; Nachman, Benjamin ; Bauer, Christian W.
For many quantum systems of interest, the classical computational cost of simulating their time evolution scales exponentially in the system size. [...]
arXiv:2208.03333 ; CERN-TH-2022-133.
- 9 p.
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2022-08-09
06:34
Mitigation of the onset of hosing in the linear regime through plasma frequency detuning / Moreira, Mariana (Lisbon, IST) ; Muggli, Patric (Munich, Max Planck Inst.) ; Vieira, Jorge (Lisbon, IST)
The hosing instability poses a feasibility risk for plasma-based accelerator concepts. [...]
arXiv:2207.14763.
- 2022. - 9 p.
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2022-08-09
05:17
Frontiers of Quantum Gravity: shared challenges, converging directions / de Boer, Jan (Amsterdam U.) ; Dittrich, Bianca (Perimeter Inst. Theor. Phys.) ; Eichhorn, Astrid (Southern Denmark U., CP3-Origins) ; Giddings, Steven B. (UC, Santa Barbara) ; Gielen, Steffen (Sheffield U.) ; Liberati, Stefano (SISSA, Trieste ; IFPU, Trieste ; INFN, Trieste) ; Livine, Etera R. (Lyon, Ecole Normale Superieure) ; Oriti, Daniele (Munich U., ASC) ; Papadodimas, Kyriakos (CERN) ; Pereira, Antonio D. (Nijmegen U., IMAPP ; Niteroi, Fluminense U.) et al.
Understanding the quantum nature of spacetime and gravity remains one of the most ambitious goals of theoretical physics. [...]
arXiv:2207.10618.
- 21 p.
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2022-08-09
05:03
A new constraint on primordial lepton flavour asymmetries / Domcke, Valerie (CERN ; EPFL, Lausanne, LPPC) ; Kamada, Kohei ; Mukaida, Kyohei ; Schmitz, Kai ; Yamada, Masaki
A chiral chemical potential present in the early universe can source helical hypermagnetic fields through the chiral plasma instability. [...]
arXiv:2208.03237 ; CERN-TH-2022-134 ; RESCEU-13/22 ; KEK-TH-2441 ; MS-TP-22-23 ; TU-1164.
- 4 p.
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2022-08-09
04:52
Amplitude analysis of the $D^+\to\pi^- \pi^+\pi^+$ decay and measurement of the $\pi^-\pi^+$ S-wave amplitude / Collaboration, Lhcb
An amplitude analysis of the $D^+ \to \pi^- \pi^+ \pi^+$ decay is performed with a sample corresponding to $1.5\rm fb^{-1}$ of integrated luminosity of $pp$ collisions at a centre-of-mass energy $\sqrt{s}=8$ TeV collected by the LHCb detector in 2012. [...]
arXiv:2208.03300 ; LHCb-PAPER-2022-016 ; CERN-EP-2022-136.
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2022-08-08
17:12
Amplitude analysis of the $\Lambda^+_c\to pK^-\pi^+$ decay and $\Lambda^+_c$ baryon polarization measurement in semileptonic beauty hadron decays
An amplitude analysis of $\Lambda^+_c \to pK^-\pi^+$ decays together with a measurement of the $\Lambda^+_c$ polarization vector in semileptonic beauty hadron decays is presented. [...]
arXiv:2208.03262 ; CERN-EP-2022-124 ; LHCB-PAPER-2022-002.
- 2022.
Fulltext - Related data file(s) - Fulltext - Supplementary information

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2022-08-08
16:44
Measurements of groomed-jet substructure of charm jets tagged by ${\rm D}^0$ mesons in proton–proton collisions at $\sqrt{s}$ = 13 TeV / ALICE Collaboration, CERN
Understanding the role of parton mass and Casimir colour factors in the quantum chromodynamics parton shower represents an important step in characterising the emission properties of heavy quarks. Recent experimental advances in jet substructure techniques have provided the opportunity to isolate and characterise gluon emissions from heavy quarks. [...]
CERN-EP-2022-171.- Geneva : CERN, 2022 Draft (restricted): PDF;

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2022-08-05
14:47
Searches for exclusive Higgs and $Z$ boson decays into a vector quarkonium state and a photon using $139$ fb$^{-1}$ of ATLAS $\sqrt{s}=13$ TeV proton-proton collision data
Searches for the exclusive decays of Higgs and $Z$ bosons into a vector quarkonium state and a photon are performed in the $\mu^+\mu^- \gamma$ final state with a proton--proton collision data sample corresponding to an integrated luminosity of $139$ fb$^{-1}$ collected at $\sqrt{s}=13$ TeV with the ATLAS detector at the CERN Large Hadron Collider. [...]
arXiv:2208.03122 ; CERN-EP-2022-128.
- 2022. - 28 p.
Fulltext - Previous draft version - Fulltext

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2022-08-05
08:47
Measurement of the $\mathrm{t\bar{t}}$ charge asymmetry in events with highly Lorentz-boosted top quarks in pp collisions at $\sqrt{s} = $ 13 TeV
The measurement of the charge asymmetry in top quark pair events with highly Lorentz-boosted top quarks decaying to a single lepton and jets is presented. [...]
arXiv:2208.02751 ; CMS-TOP-21-014 ; CERN-EP-2022-155 ; CMS-TOP-21-014-003.
- 2022.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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2022-08-05
08:17
Searches for additional Higgs bosons and for vector leptoquarks in $\tau\tau$ final states in proton-proton collisions at $\sqrt{s} = $ 13 TeV
Three searches are presented for signatures of physics beyond the standard model (SM) in $\tau\tau$ final states in proton-proton collisions at the LHC, using a data sample collected with the CMS detector at $\sqrt{s} = $ 13 TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$. [...]
arXiv:2208.02717 ; CMS-HIG-21-001 ; CERN-EP-2022-137 ; CMS-HIG-21-001-004.
- 2022.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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