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Recently the ATLAS collaboration reported a $3\sigma$ excess in the leptonic-$Z+jets+E_{T}^{miss}$ channel. This may be interpreted in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) by gluino pair production with the decay chain…

High Energy Physics - Phenomenology · Physics 2015-05-07 Junjie Cao , Liangliang Shang , Jin Min Yang , Yang Zhang

This paper discusses the ATLAS potential to study Supersymmetry for the "Focus-Point" region of the parameter space of mSUGRA models. The potential to discovery a deviation from Standard Model expectations with the first few ${fb}^{-1}$ of…

High Energy Physics - Experiment · Physics 2008-11-26 U. De Sanctis , T. Lari , S. Montesano , C. Troncon

We demonstrate that the $3\sigma$ excess observed by ATLAS in the Z + MET channel can be explained within the context of the MSSM. Using the freedom inherent in the pMSSM, we perform a detailed analysis of the parameter space and find a…

High Energy Physics - Phenomenology · Physics 2015-10-28 M. Cahill-Rowley , J. L. Hewett , A. Ismail , T. G. Rizzo

Weak-scale supersymmetry remains to be one of the best-motivated theories of physics beyond the Standard Model. We evaluate the sensitivities of the High Luminosity (HL) and High Energy (HE) upgrades of the LHC to gluinos and stops,…

High Energy Physics - Phenomenology · Physics 2019-05-14 Tao Han , Ahmed Ismail , Barmak Shams Es Haghi

We study the impact of the multi-lepton searches at the LHC on supersymmetric models with compressed mass spectra. For such models the acceptances of the usual search strategies are significantly reduced due to requirement of large…

High Energy Physics - Phenomenology · Physics 2015-06-05 Krzysztof Rolbiecki , Kazuki Sakurai

The search for supersymmetric models remains one of the main items on the BSM search program at the LHC, with EW SUSY partners still allowed with masses as low as a few hundred GeV. Over the last years, searches for the "golden channel",…

High Energy Physics - Phenomenology · Physics 2025-12-19 Emanuele Bagnaschi , Manimala Chakraborti , Sven Heinemeyer , Ipsita Saha

Statistical combinations of searches for charginos and neutralinos using various decay channels are performed using $139\,$fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13\,$TeV with the ATLAS detector at the Large Hadron Collider. Searches…

High Energy Physics - Experiment · Physics 2024-07-29 ATLAS Collaboration

The search for physics beyond the Standard Model (BSM) is one of the most important goals for the general purpose detector ATLAS at the Large Hadron Collider at CERN. Already with early LHC data, the ATLAS experiment should be sensitive to…

High Energy Physics - Experiment · Physics 2009-10-30 Janet Dietrich

ATLAS recently reported a $3\sigma$ excess in a leptonic-$Z+E_T^{\rm miss}$ channel. This was interpreted in the literature in a simplified General Gauge Mediation model containing a gluino, a higgsino next-to-lightest supersymmetric…

High Energy Physics - Phenomenology · Physics 2015-05-27 Ben Allanach , Are Raklev , Anders Kvellestad

Fastlim is a tool to calculate conservative limits on extensions of the Standard Model from direct LHC searches without performing any Monte Carlo event generation. The program reconstructs the visible cross sections from pre-calculated…

High Energy Physics - Phenomenology · Physics 2015-06-18 Michele Papucci , Kazuki Sakurai , Andreas Weiler , Lisa Zeune

This document presents two searches for Supersymmetry through the direct production of pairs of higgsinos decaying into final states with leptons and ($b$-) jets. The analyses are performed using 139~fb$^{-1}$ of the 13~TeV proton-proton…

High Energy Physics - Experiment · Physics 2025-04-02 Otilia Ducu

As reasoning LLMs increasingly trade tokens for accuracy through deliberation, search, and self-correction, a single accuracy score can no longer tell whether those tokens buy useful reasoning, recovery from hard instances, or unnecessary…

Computation and Language · Computer Science 2026-05-19 Daniel Kaiser , Arnoldo Frigessi , Ali Ramezani-Kebrya , Benjamin Ricaud

The ATLAS collaboration recently reported a $3\sigma$ excess in the leptonic-$Z+jets+E_{T}^{miss}$ channel. We intend to interpret this excess by squark pair production in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The decay…

High Energy Physics - Phenomenology · Physics 2015-09-24 Junjie Cao , Liangliang Shang , Jin Min Yang , Yang Zhang

We report the preliminary results of a meta-analysis conducted to examine possible biases in the uncertainty values published in papers by ATLAS and CMS experiments. We have performed this analysis using two independent techniques; a…

High Energy Physics - Experiment · Physics 2019-11-05 Sevim Açıksöz , Bilal Çark , Selim Mert Kırpıcı , Merve Yıldız , Veysi Erkcan Özcan

Accurately predicting end-to-end network latency is essential for enabling reliable task offloading in real-time edge computing applications. This paper introduces a lightweight latency prediction scheme based on rational modelling that…

Networking and Internet Architecture · Computer Science 2025-11-05 Mohan Liyanage , Eldiyar Zhantileuov , Ali Kadhum Idrees , Rolf Schuster

The electroweak fine-tuning measure Delta(EW) allows for correlated SUSY soft terms as are expected in any ultra-violet complete theory. Requiring no less than 3% electroweak fine-tuning implies upper bounds of about 360~GeV on all…

High Energy Physics - Phenomenology · Physics 2018-10-17 Howard Baer , Vernon Barger , James S. Gainer , Dibyashree Sengupta , Hasan Serce , Xerxes Tata

A number of LHC searches now display intriguing excesses. Most prominently, the measurement of the $W^+W^-$ cross-section has been consistently $\sim 20\%$ higher than the theoretical prediction across both ATLAS and CMS for both 7 and 8…

High Energy Physics - Phenomenology · Physics 2015-06-19 Jong Soo Kim , Krzysztof Rolbiecki , Kazuki Sakurai , Jamie Tattersall

A summary of the constraints from the ATLAS experiment on $R$-parity conserving supersymmetry is presented. Results from 22 separate ATLAS searches are considered, each based on analysis of up to 20.3 fb$^{-1}$ of proton-proton collision…

High Energy Physics - Experiment · Physics 2015-10-30 ATLAS Collaboration

We present definite correlations between the CMS 5 \fb all-hadronic search employing the stransverse mass variable $M_{T2}$ and the ATLAS 5 \fb all-hadronic and multijet supersymmetry (SUSY) searches, suggesting the possibility that both…

High Energy Physics - Phenomenology · Physics 2012-06-04 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

We use the framework of the p19MSSM to perform a fit to the mild excesses over the Standard Model background recently observed in three bins of the ATLAS 1-lepton + (b-)jets + MET search. We find a few types of spectra that can fit the…

High Energy Physics - Phenomenology · Physics 2017-02-13 Kamila Kowalska , Enrico Maria Sessolo