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2023-05-27
10:18
Production locality and spatial diffusion of heavy flavour at high energy densities / Gazdzicki, M. (Frankfurt U., Inst. Kernphys. ; Jan Kochanowski U.) ; Kikola, D. (Warsaw U. of Tech. (main)) ; Pidhurskyi, I. (Frankfurt U., Inst. Kernphys. ; Jan Kochanowski U. ; CERN) ; Tinti, L. (Jan Kochanowski U.)
Heavy-ion collisions are a unique tool to test the behaviour of matter in extreme conditions. [...]
arXiv:2305.00212. - 17 p.
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2023-05-27
09:54
Techniques to seed the self-modulation instability of a long proton bunch in plasma / Verra, L. (CERN) ; Della Porta, G. Zevi (CERN ; Munich, Max Planck Inst.) ; Gschwendtner, E. (CERN) ; Bergamaschi, M. (Munich, Max Planck Inst.) ; Muggli, P. (Munich, Max Planck Inst.)
The Advanced Wakefield Experiment (AWAKE) at CERN relies on the seeded Self-Modulation (SM) of a long relativistic proton bunch in plasma to accelerate an externally injected MeV witness electron bunch to GeV energies. [...]
arXiv:2305.00431. - 4 p.
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2023-05-27
07:32
Associated production of prompt $J/\psi$ and $\mathit{\Upsilon}$ mesons in $pp$ collisions at $\sqrt{s}=13\,\mathrm{TeV}$ / LHCb Collaboration
The associated production of prompt $J/\psi$ and $\mathit{\mathit{\Upsilon}}$ mesons in $pp$ collisions at a centre-of-mass energy of $\sqrt{s}=13\,\mathrm{TeV}$ is studied using LHCb data, corresponding to an integrated luminosity of $4\,\mathrm{fb}^{-1}$. [...]
arXiv:2305.15580 ; LHCb-PAPER-2022-047 ; CERN-EP-2023-078. -
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2023-05-26
13:48
Observation of $WZ\gamma$ production in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
This Letter reports the observation of $WZ\gamma$ production and a measurement of its cross-section using $140.1 \pm 1.2~\textrm{fb}^{-1}$ of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. [...]
CERN-EP-2023-095. - 2023.
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2023-05-26
13:18
Measurements of multijet event isotropies using optimal transport with the ATLAS detector
A measurement of novel event shapes quantifying the isotropy of collider events is performed in 140 fb$^{-1}$ of proton-proton collisions with $\sqrt{s}=13$ TeV centre-of-mass energy recorded with the ATLAS detector at CERN's Large Hadron Collider. [...]
CERN-EP-2023-079. - 2023.
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2023-05-26
12:55
Search for leptoquarks decaying into the b$\tau$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for leptoquarks decaying into the $b\tau$ final state is performed using Run 2 proton-proton collision data from the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb$^{-1}$ at $\sqrt{s} = 13$ TeV recorded by the ATLAS detector. [...]
arXiv:2305.15962 ; CERN-EP-2023-033. - 2023. - 67 p.
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2023-05-26
10:31
Measurement of the mass difference and relative production rate of the $\Omega^-_b$ and $\Xi^-_b$ baryons / LHCb Collaboration
The mass difference between the $\Omega^-_b$ and $\Xi^-_b$ baryons is measured using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of $9 \, \textrm{fb}^{-1}$, and is found to be \begin{equation} m(\Omega^-_b)- m(\Xi^-_b) = 248.54 \pm 0.51 \textrm{(stat)} \pm 0.38 \textrm{(syst)} \, \textrm{MeV}/c^2. [...]
arXiv:2305.15329 ; LHCb-PAPER-2022-053 ; CERN-EP-2023-086. - 2023. - 23 p.
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2023-05-26
09:38
Measurements of the azimuthal anisotropy of prompt and nonprompt charmonia in PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV
The second-order ($ v_{2} $) and third-order ($ v_{3} $) Fourier coefficients describing the azimuthal anisotropy of prompt and nonprompt (from b-hadron decays) J/$\psi$, as well as prompt $ \psi $(2S) mesons are measured in lead-lead collisions at a center-of-mass energy per nucleon pair of $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV. [...]
CERN-EP-2023-052 ; CMS-HIN-21-008-003. - 2023.
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2023-05-26
04:31
Using the LHeC ERL to generate high-energy photons / Mirian, Najmeh Sadat (Aichi, Inst. Molecular Sci.) ; Salehi, Elham (Aichi, Inst. Molecular Sci.) ; Zimmermann, Frank (CERN)
The Large Hadron electron Collider (LHeC) is a proposed future particle physics project colliding 60 GeV electrons from a six-pass recirculating energy-recovery linac (ERL) with 7 TeV protons stored in the LHC. [...]
arXiv:2305.14893. -
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2023-05-26
04:22
Weak decays of heavy-quark baryons / Nicolini, Janina (Tech. U., Dortmund (main) ; U. Paris-Saclay)
Weak decays of heavy-quark baryons offer an attractive laboratory to search for effects beyond the Standard Model (SM), complementary to searches in meson decays. [...]
arXiv:2305.15366. -
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