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2021-05-15
04:25
The isotropic attractor solution of axion-SU(2) inflation: Universal isotropization in Bianchi type-I geometory / Wolfson, Ira (SISSA, Trieste) ; Maleknejad, Azadeh (CERN) ; Murata, Tomoaki (Rikkyo U.) ; Komatsu, Eiichiro (Garching, Max Planck Inst. ; Tokyo U., IPMU) ; Kobayashi, Tsutomu (Rikkyo U.)
SU(2) gauge fields coupled to an axion field can acquire an isotropic background solution during inflation. [...]
arXiv:2105.06259 ; CERN-TH-2021-076. - 23 p.
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2021-05-15
04:25
Jet Single Shot Detection / Pol, Adrian Alan (CERN) ; Aarrestad, Thea (CERN) ; Govorkova, Katya (CERN) ; Halily, Roi (Unlisted, IL) ; Kopetz, Tal (Unlisted, IL) ; Klempner, Anat (Unlisted, IL) ; Loncar, Vladimir (CERN ; Belgrade, Inst. Phys.) ; Ngadiuba, Jennifer (Caltech) ; Pierini, Maurizio (CERN) ; Sirkin, Olya (Unlisted, IL) et al.
We apply object detection techniques based on Convolutional Neural Networks to jet reconstruction and identification at the CERN Large Hadron Collider. [...]
arXiv:2105.05785. -
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2021-05-13
09:51
Top quark mass and cross sections in ATLAS and CMS / Defranchis, Matteo M.
With the large data set delivered during the second run of the CERN LHC, inclusive and differential measurements of the top quark-antiquark production cross section at the ATLAS and CMS experiments often reach a precision that is comparable or superior to that of the corresponding theoretical calculations. [...]
arXiv:2105.05776. -
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2021-05-13
09:51
Measurement of K$^{*}$(892)$^{\mathrm{\pm}}$ production in inelastic pp collisions at the LHC / ALICE Collaboration
The first results on K$^{*}$(892)$^{\mathrm{\pm}}$ resonance production in inelastic pp collisions at LHC energies of $\sqrt{s} = 5.02$, 8, and 13 TeV are presented. [...]
arXiv:2105.05760 ; CERN-EP-2021-086. - 26 p.
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2021-05-13
09:51
Charged-particle multiplicity fluctuations in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV / ALICE Collaboration
Measurements of event-by-event fluctuations of charged-particle multiplicities in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV using the ALICE detector at the CERN Large Hadron Collider (LHC) are presented in the pseudorapidity range $|\eta|<0.8$ and transverse momentum $0.2 < p_{\rm T} < 2.0$ GeV/$c$. [...]
arXiv:2105.05745 ; CERN-EP-2021-089. - 23 p.
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2021-05-13
09:51
Kaon-proton strong interaction at low relative momentum via femtoscopy in Pb-Pb collisions at the LHC / ALICE Collaboration
In quantum scattering processes between two particles, aspects characterizing the strong and Coulomb forces can be observed in kinematic distributions of the particle pairs. [...]
arXiv:2105.05683 ; CERN-EP-2021-080. - 25 p.
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2021-05-13
09:51
Experimental evidence for an attractive p-$\phi$ interaction / ALICE Collaboration
This Letter presents the first experimental evidence of the attractive strong interaction between a proton and a $\phi$ meson. [...]
arXiv:2105.05578 ; CERN-EP-2021-081. - 18 p.
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2021-05-13
09:51
Measurement of the production cross section of prompt $\Xi^0_{\rm c}$ baryons at midrapidity in pp collisions at $\sqrt{s}$ = 5.02 TeV / ALICE Collaboration
The transverse momentum ($p_{\rm T}$) differential cross section of the charm-strange baryon $\Xi^0_{\rm c}$ is measured at midrapidity ($|y|<$ 0.5) via its semileptonic decay into ${\rm e^{+}}\Xi^{-}\nu_{\rm e}$ in pp collisions at $\sqrt{s}$ = 5.02 TeV with the ALICE detector at the LHC. [...]
arXiv:2105.05616 ; CERN-EP-2021-079. - 27 p.
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2021-05-13
09:51
The Amplitude for Classical Gravitational Scattering at Third Post-Minkowskian Order / Bjerrum-Bohr, N.E.J. (Bohr Inst.) ; Damgaard, P.H. (Bohr Inst. ; CERN) ; Planté, L. (Poincare Inst.) ; Vanhove, P. (IPhT, Saclay ; Higher Sch. of Economics, Moscow ; CERN)
We compute the scattering amplitude for classical black-hole scattering to third order in the Post-Minkowskian expansion, keeping all terms needed to derive the scattering angle to that order from the eikonal formalism. [...]
arXiv:2105.05218 ; IPhT-t21/028 ; CERN-TH-2021-073. - 33 p.
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2021-05-13
09:51
Complete Set of Feynman Rules for Scalar Leptoquarks / Crivellin, Andreas (CERN ; Zurich U. ; PSI, Villigen) ; Schnell, Luc (Paris, LPTHE ; Zurich, ETH ; Ec. Polytech., Palaiseau (main))
Leptoquarks (LQs) have attracted increasing attention within recent years, mainly since they can explain the flavor anomalies found in $R(D^{(*)})$, $b \rightarrow s \ell^+ \ell^-$ transitions and the anomalous magnetic moment of the muon. [...]
arXiv:2105.04844 ; CERN-TH-2021-074 ; PSI-PR-21-08 ; ZU-TH 19/21. - 131 p.
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