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A. E. Del Valle

Researcher at Istituto Nazionale di Fisica Nucleare

Publications -  16
Citations -  718

A. E. Del Valle is an academic researcher from Istituto Nazionale di Fisica Nucleare. The author has contributed to research in topics: Large Hadron Collider & Hadron. The author has an hindex of 10, co-authored 16 publications receiving 437 citations.

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Journal ArticleDOI

Extraction and validation of a new set of CMS pythia8 tunes from underlying-event measurements

Albert M. Sirunyan, +2251 more
- 03 Jan 2020 - 
TL;DR: For the first time, predictions from pythia8 obtained with tunes based on NLO or NNLO PDFs are shown to reliably describe minimum-bias and underlying-event data with a similar level of agreement to predictions from tunes using LO PDF sets.
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Search for production of four top quarks in final states with same-sign or multiple leptons in proton-proton collisions at √{s }=13 TeV

Albert M. Sirunyan, +2295 more
- 31 Jan 2020 - 
TL;DR: The standard model (SM) production of four top quarks in proton-proton collisions is studied by the CMS Collaboration, with limits set on the production of a heavy scalar or pseudoscalar boson in Type-II two-Higgs-doublet and simplified dark matter models.
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Performance of the CMS Level-1 trigger in proton-proton collisions at √s = 13 TeV

Albert M. Sirunyan, +2328 more
- 19 Oct 2020 - 
TL;DR: In this article, the authors describe the performance of the Level-1 trigger upgrade during the data taking period of 2016-2018, which implements pattern recognition and boosted decision tree regression techniques for muon reconstruction, including pileup subtraction for jets and energy sums, and incorporates pileupdependent isolation requirements for electrons and tau leptons.
Journal ArticleDOI

Searches for physics beyond the standard model with the MT2 variable in hadronic final states with and without disappearing tracks in proton-proton collisions at s=13Te

Albert M. Sirunyan, +2285 more
- 03 Jan 2020 - 
TL;DR: In this paper, two related searches for phenomena beyond the standard model (BSM) are performed using events with hadronic jets and significant transverse momentum imbalance, based on a sample of proton-proton collisions at a center-of-mass energy of $13,\text {Te}\text {V} $, collected by the CMS experiment at the LHC in 2016-2018 and corresponding to an integrated luminosity of 137$
Journal ArticleDOI

Measurement of t t ¯ normalised multi-differential cross sections in pp collisions at √s=13TeV , and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions

Albert M. Sirunyan, +2249 more
- 22 Jul 2020 - 
TL;DR: In this article, a triple-differential measurement is performed as a function of the invariant mass and rapidity of the top quark system and the multiplicity of additional jets at particle level.