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CERN Preprints

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2019-07-14
22:36
Search for physics beyond the standard model in events with overlapping photons and jets
Results are reported from a search for new particles that decay into a photon and two gluons, in events with jets. [...]
CERN-EP-2019-135 ; CMS-B2G-18-007-003.
- 2019.
Additional information for the analysis - CMS AuthorList - Fulltext

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2019-07-14
21:32
Searches for lepton-flavour-violating decays of the Higgs boson in $\sqrt{s}=13$ TeV pp collisions with the ATLAS detector
This Letter presents direct searches for lepton flavour violation in Higgs boson decays, $H\rightarrow e\tau$ and $H\rightarrow\mu\tau$, performed with the ATLAS detector at the LHC. [...]
CERN-EP-2019-126.
- 2019.
Fulltext - Previous draft version

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2019-07-13
05:08
The Selfish Higgs / Giudice, G.F. ; Kehagias, A. ; Riotto, A.
We propose a mechanism to solve the Higgs naturalness problem through a cosmological selection process. [...]
arXiv:1907.05370 ; CERN-TH-2019-114.
- 17 p.
Fulltext

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2019-07-13
05:08
Analytic results for decays of color singlets to $gg$ and $q \bar q$ final states at NNLO QCD with the nested soft-collinear subtraction scheme / Caola, Fabrizio ; Melnikov, Kirill ; Röntsch, Raoul
We present compact analytic formulas that describe the decay of colorless particles to both $q \bar q$ and $gg$ final states through next-to-next-to-leading order in perturbative QCD in the context of the nested soft-collinear subtraction scheme. [...]
arXiv:1907.05398 ; OUTP-19-08P ; CERN-TH-2019-106 ; TTP-19-023 ; P3H-19-017.
- 40 p.
Fulltext

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2019-07-13
05:07
Measurement of flow harmonics correlations with mean transverse momentum in lead-lead and proton-lead collisions at $\sqrt{s_{NN}}=5.02$ TeV with the ATLAS detector / ATLAS Collaboration
To assess the properties of the quark-gluon plasma formed in heavy-ion collisions, the ATLAS experiment at the LHC measures a correlation between the mean transverse momentum and the magnitudes of the flow harmonics. [...]
arXiv:1907.05176 ; Preprint ID: CERN-EP-2019-130.
- 37 p.
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2019-07-12
04:03
Cosmological scalar fields and Big-Bang nucleosynthesis / Arbey, A. ; Coupechoux, J.-F.
Scalar fields are widely used in cosmology, in particular to emulate dark energy, for example in quintessence models, or to explain dark matter, in particular within the fuzzy dark matter model. [...]
arXiv:1907.04367 ; CERN-TH-2019-111.
- 28 p.
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2019-07-11
22:50
Study of the ${\mathrm{B^{+}} \to \mathrm{J}/\psi\bar{\Lambda} {\mathrm{p}}}$ decay in proton-proton collisions at $ \sqrt{s}= $ 8 TeV
A study of the ${\mathrm{B^{+}} \to \mathrm{J}/\psi\bar{\Lambda} {\mathrm{p}}}$ decay using proton-proton collision data collected at $\sqrt{s} = $ 8 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6 fb$^{-1}$, is presented. [...]
CERN-EP-2019-128 ; CMS-BPH-18-005-003.
- 2019.
Additional information for the analysis - CMS AuthorList - Fulltext

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2019-07-11
15:01
Measurement of flow harmonics correlations with mean transverse momentum in lead-lead and proton-lead collisions at $\sqrt{s_{NN}}=5.02$ TeV with the ATLAS detector
To assess the properties of the quark-gluon plasma formed in heavy-ion collisions, the ATLAS experiment at the LHC measures a correlation between the mean transverse momentum and the magnitudes of the flow harmonics. [...]
CERN-EP-2019-130.
- 2019.
Fulltext - Previous draft version

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2019-07-11
14:41
ATLAS $b$-jet identification performance and efficiency measurement with $t\bar{t}$ events in $pp$ collisions at $\sqrt{s}=13$ TeV / ATLAS Collaboration
The algorithms used by the ATLAS Collaboration during Run 2 of the Large Hadron Collider to identify jets containing $b$-hadrons are presented. [...]
arXiv:1907.05120 ; CERN-EP-2019-132.
- 2019. - 52 p.
Fulltext - Previous draft version - Fulltext

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2019-07-11
04:38
An analytic solution for the equal-mass banana graph / Broedel, Johannes ; Duhr, Claude ; Dulat, Falko ; Marzucca, Robin ; Penante, Brenda ; Tancredi, Lorenzo
We present fully analytic results for all master integrals for the three-loop banana graph with four equal and non-zero masses. [...]
arXiv:1907.03787 ; CP3-19-34 ; CERN-TH-2019-105 ; HU-Mathematik-2019-04 ; HU-EP-19/20, SLAC-PUB-17453.
- 35 p.
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