J. Jiménez Peña
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View article: CTD2022: ATLAS Inner Detector alignment towards Run 3
CTD2022: ATLAS Inner Detector alignment towards Run 3 Open
The algorithm used in the alignment of the Inner Detector of the ATLAS experiment is based on the track-to-hit residual minimization in a sequence of hierarchical levels (ranging from mechanical assembly structures to individual sensors). …
An easily computable upper bound on the Hoffman constant for homogeneous inequality systems Open
Let $A\in \mathbb{R}^{m\times n}\setminus \{0\}$ and $P:=\{x:Ax\le 0\}$. This paper provides a procedure to compute an upper bound on the following homogeneous Hoffman constant: \[ H_0(A) := \sup_{u\in \mathbb{R}^n \setminus P} \frac{\text…
Highlights of EW and QCD results at the LHC Open
Using collision data from the LHC, the ATLAS and CMS collaborations have extensively tested the Standard Model of particle physics with a wide programme of physics analyses. This document highlights a few recent analyses targeting electrow…
Linear convergence of the Douglas-Rachford algorithm via a generic error\n bound condition Open
We provide new insight into the convergence properties of the\nDouglas-Rachford algorithm for the problem $\\min_x \\{f(x)+g(x)\\}$, where $f$\nand $g$ are convex functions. Our approach relies on and highlights the natural\nprimal-dual sy…
Top quark property measurements in single top Open
A review of the recent results on measurements of top quark properties in single top quark events using data samples of proton proton collisions produced by the LHC at sqrt(s) = 7 and 8 TeV and collected by ATLAS and CMS detectors is prese…
Novel time-dependent alignment of the ATLAS Inner Detector in the LHC Run 2 Open
ATLAS is a multipurpose experiment at the LHC proton-proton collider. Its physics goals require an unbiased and high resolution measurement of the charged particle kinematic parameters. These critically depend on the layout and performance…