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I. M. Gregor

Researcher at CERN

Publications -  786
Citations -  53975

I. M. Gregor is an academic researcher from CERN. The author has contributed to research in topics: Large Hadron Collider & Higgs boson. The author has an hindex of 103, co-authored 659 publications receiving 49176 citations.

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Emulating the impact of additional proton–proton interactions in the ATLAS simulation by presampling sets of inelastic Monte Carlo events

Georges Aad, +2782 more
- 27 Jan 2022 - 
TL;DR: In this paper , a new method to account for these additional interactions in the simulation chain is described, instead of sampling the inelastic interactions and adding their energy deposits to a hard-scatter interaction one-by-one, the interactions are presampled, independent of the hard scatter, and stored as combined events.

Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector

Georges Aad, +2899 more
TL;DR: In this paper, the authors present the measurement of the electroweak production of two jets in association with a $Z\gamma$ pair with the Higgs boson decaying into two neutrinos.
Journal ArticleDOI

Study of CMOS strip sensor for future silicon tracker

Y. C. Han, +71 more
- 21 Nov 2020 - 
TL;DR: In this article, the basic characteristics of the CHESS2 prototype sensors and their performance in response to different input signals are presented, and the test results were used to optimize the second prototype.

Measurement of the energy asymmetry in $t\bar{t}j$ production at 13 TeV with the ATLAS experiment and interpretation in the SMEFT framework

Georges Aad, +2921 more
TL;DR: In this article, a measurement of the energy asymmetry in jet-associated top-quark pair production is presented using 139 ρ-fb √ n −1 −1/ρ−1/ ρ −1 ) data collected by the ATLAS detector at the Large Hadron Collider during $pp$ collisions at $\sqrt{s}=13$ TeV.

arXiv : Search for exotic decays of the Higgs boson into long-lived particles in $pp$ collisions at $\sqrt{s} = 13$ TeV using displaced vertices in the ATLAS inner detector

Georges Aad, +2878 more
TL;DR: In this paper, a search for exotic decays of the Higgs boson into pairs of long-lived neutral particles, each decaying into a bottom quark pair, is performed using 139 fb$^{-1}$ of $\sqrt{s} = 13$ TeV proton-proton collision data collected with the ATLAS detector at the LHC.