CERN Accelerating science

Preprints

Nyeste elementer:
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. ; Damgaard, P.H. ; Planté, L. ; Vanhove, P.
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 ; Schnell, Luc
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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2021-05-13
09:51
r-Process Radioisotopes from Near-Earth Supernovae and Kilonovae / Wang, Xilu ; Clark, Adam M. ; Ellis, John ; Ertel, Adrienne F. ; Fields, Brian D. ; Liu, Zhenghai ; Miller, Jesse A. ; Surman, Rebecca
The astrophysical sites where r-process elements are synthesized remain mysterious: it is clear that neutron-star mergers (kilonovae, KNe) contribute, and some classes of core-collapse supernovae (SNe) are also likely sources of at least the lighter r-process species. [...]
arXiv:2105.05178 ; KCL-PH-TH/2021-03 ; CERN-TH-2021-014 ; N3AS-21-007.
- 43 p.
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2021-05-13
09:51
Quantum spectral problems and isomonodromic deformations / Bershtein, Mikhail ; Gavrylenko, Pavlo ; Grassi, Alba
We develop a self-consistent approach to study the spectral properties of a class of quantum mechanical operators by using the knowledge about monodromies of $2\times 2$ linear systems (Riemann-Hilbert correspondence). [...]
arXiv:2105.00985 ; CERN-TH-2021-070.
- 62 p.
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