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2020-08-11
10:43
arXiv [PUBDB-2020-02972] Preprint
et al
First flavor tagging calibration using 2019 Belle II data
[BELLE2-CONF-PH-2020-004]
Cornell University ()
We report on the first calibration of the standard Belle II $B$-flavor tagger using the full data set collected at the $\Upsilon(4{\rm S})$ resonance in 2019 with the Belle II detector at the SuperKEKB collider, corresponding to 8.7 fb$^{-1}$ of integrated luminosity. The calibration is performed by reconstructing various hadronic charmed $B$-meson decays with flavor-specific final states. [...]
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2020-08-11
10:42
arXiv [PUBDB-2020-02971] Journal Article
et al
IceCube Search for Neutrinos Coincident with Compact Binary Mergers from LIGO-Virgo's First Gravitational-Wave Transient Catalog
[arXiv:2004.02910]
Using the IceCube Neutrino Observatory, we search for high-energy neutrino emission coincident with compact binary mergers observed by the LIGO and Virgo gravitational-wave (GW) detectors during their first and second observing runs. We present results from two searches targeting emission coincident with the sky localization of each GW event within a 1000 s time window centered around the reported merger time. [...]
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2020-08-11
10:21
arXiv [PUBDB-2020-02970] Journal Article
et al
The $\gamma$-ray Emission of Star-Forming Galaxies
[arXiv:2003.05493]
A majority of the γ-ray emission from star-forming galaxies is generated by the interaction of high-energy cosmic rays with the interstellar gas and radiation fields. Star-forming galaxies are expected to contribute to both the extragalactic γ-ray background and the IceCube astrophysical neutrino flux. [...]
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2020-08-10
10:38
DBCoverage [PUBDB-2020-02963] Journal Article
et al
Measurement of the transverse momentum distribution of Drell–Yan lepton pairs in proton–proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
[CERN-EP-2019-223; arXiv:1912.02844]
This paper describes precision measurements of the transverse momentum $p_\mathrm {T}^{\ell \ell }$ ($\ell =e,\mu $) and of the angular variable $\phi ^{*}_{\eta }$ distributions of Drell–Yan lepton pairs in a mass range of 66–116 GeV. The analysis uses data from 36.1 fb$^{-1}$ of proton–proton collisions at a centre-of-mass energy of $\sqrt{s}=13\,$TeV collected by the ATLAS experiment at the LHC in 2015 and 2016. [...]
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2020-08-07
12:05
DBCoverage [PUBDB-2020-02961] Journal Article
et al
Measurements of the production cross-section for a $Z$ boson in association with $b$-jets in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
[CERN-EP-2020-022; arXiv:2003.11960]
This paper presents a measurement of the production cross-section of a Z boson in association with b-jets, in proton-proton collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an integrated luminosity of 35.6 fb$^{−1}$. Inclusive and differential cross-sections are measured for events containing a Z boson decaying into electrons or muons and produced in association with at least one or at least two b-jets with transverse momentum p$_{T}$> 20 GeV and rapidity |y| < 2.5 [...]
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2020-08-07
11:31
DBCoverage [PUBDB-2020-02960] Journal Article
et al
Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} =5.02 TeV with the ATLAS detector
[CERN-EP-2019-274; arXiv:2003.03565]
Azimuthal anisotropies of muons from charm and bottom hadron decays are measured in Pb+Pb collisions at sNN=5.02TeV . The data were collected with the ATLAS detector at the Large Hadron Collider in 2015 and 2018 with integrated luminosities of 0.5nb−1 and 1.4nb−1 , respectively. [...]
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2020-08-07
11:24
arXiv [PUBDB-2020-02959] Journal Article
et al
Search for heavy Higgs bosons decaying into two tau leptons with the ATLAS detector using $pp$ collisions at $\sqrt{s}=13$ TeV
[CERN-EP-2020-014; arXiv:2002.12223]
A search for heavy neutral Higgs bosons is performed using the LHC Run 2 data, corresponding to an integrated luminosity of 139 fb-1 of proton-proton collisions at s=13 TeV recorded with the ATLAS detector. The search for heavy resonances is performed over the mass range 0.2–2.5 TeV for the τ+τ- decay with at least one τ-lepton decaying into final states with hadrons. [...]
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2020-08-06
13:45
[PUBDB-2020-02955] Conference Presentation

Higgs boson combination and coupling measurements at CMS
40th International Conference on High Energy Physics, ICHEP2020, ONLINEONLINE, Virtual World, 28 Jul 2020 - 6 Aug 20202020-07-282020-08-06
The most recent CMS results on Higgs boson properties from the combination of different final states will be presented, including the Higgs boson mass, couplings, and interpretations in the context of effective field theories extending the standard model..
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2020-08-06
13:43
[PUBDB-2020-02954] Conference Presentation

Precision luminosity measurement with proton-proton collisions at the CMS experiment in Run 2
40th International Conference on High Energy Physics, ICHEP2020, ONLINEONLINE, Virtual World, 28 Jul 2020 - 6 Aug 20202020-07-282020-08-06
Precision luminosity calibration is critical to determine fundamental parameters of the standard model and to constrain or to discover beyond-the-standard-model phenomena at LHC. The luminosity determination at the LHC interaction point 5 with the CMS detector, using proton-proton collisions at 13 and 5.02 TeV during Run 2 of the LHC (2015–2018), is reported. [...]
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2020-08-06
13:40
[PUBDB-2020-02953] Conference Presentation

Tau identification exploiting deep learning techniques
40th International Conference on High Energy Physics, ICHEP2020, ONLINEONLINE, Virtual World, 28 Jul 2020 - 6 Aug 20202020-07-282020-08-06
The recently deployed DeepTau algorithm for the discrimination of taus from light flavor quark or gluon induced jets, electrons, or muons is an ideal example for the exploitation of modern deep learning neural network techniques. With the current algorithm a suppression of miss-identification rates by factors of two and more have been achieved for the same identification efficiency for taus as for the MVA identification algorithms used for the LHC Run-1, leading to significant performance gains for many tau related analyses. [...]
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