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1.
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Collider constraints on electroweakinos in the presence of a light gravitino
/ GAMBIT Collaboration
Using the GAMBIT global fitting framework, we constrain the MSSM with an eV-scale gravitino as the lightest supersymmetric particle, and the six electroweakinos (neutralinos and charginos) as the only other light new states. We combine 15 ATLAS and 12 CMS searches at 13 TeV, along with a large collection of ATLAS and CMS measurements of Standard Model signatures. [...]
arXiv:2303.09082; TTP23-009; KCL-PH-TH/2023-21; gambit-physics-23; MCnet-23-05,
ADP-23-08/T1217; CERN-TH-2023-043.-
2023-06-10 - 38 p.
- Published in : Eur. Phys. J. C 83 (2023) 493
Fulltext: document - PDF; 2303.09082 - PDF;
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2.
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Thermal WIMPs and the Scale of New Physics: Global Fits of Dirac Dark Matter Effective Field Theories
/ GAMBIT Collaboration
We assess the status of a wide class of WIMP dark matter (DM) models in light of the latest experimental results using the global fitting framework $\textsf{GAMBIT}$. We perform a global analysis of effective field theory (EFT) operators describing the interactions between a gauge-singlet Dirac fermion and the Standard Model quarks, the gluons and the photon. [...]
arXiv:2106.02056; ADP-21-9/T1156; CERN-TH-2021-084; CP3-21-15; P3H-21-038; TTK-21-19,
gambit-physics-21; TTK-21-19,
gambit-physics-2021.-
2021-11-11 - 37 p.
- Published in : Eur. Phys. J. C 81 (2021) 992
Fulltext: 2106.02056 - PDF; document - PDF;
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3.
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Simple and statistically sound recommendations for analysing physical theories
/ AbdusSalam, Shehu S. (Shahid Beheshti U.) ; Agocs, Fruzsina J. (Cambridge U. ; Cambridge U., KICC) ; Allanach, Benjamin C. (Cambridge U., DAMTP) ; Athron, Peter (Monash U. ; Nanjing Normal U.) ; Balázs, Csaba (Monash U.) ; Bagnaschi, Emanuele (PSI, Villigen) ; Bechtle, Philip (Bonn U.) ; Buchmueller, Oliver (Imperial Coll., London) ; Beniwal, Ankit (Louvain U., CP3) ; Bhom, Jihyun (Cracow, INP) et al.
Physical theories that depend on many parameters or are tested against data from many different experiments pose unique challenges to statistical inference. Many models in particle physics, astrophysics and cosmology fall into one or both of these categories. [...]
arXiv:2012.09874; PSI-PR-20-23; BONN-TH-2020-11; CP3-20-59; KCL-PH-TH/2020-75,
P3H-20-080; TTP20-044; TUM-HEP-1310/20; IFT-UAM/CSIC-20-180; TTK-20-47,
CERN-TH-2020-215; FTPI-MINN-20-36; UMN-TH-4005/20; HU-EP-20/37; DESY 20-222,
ADP-20-33/T1143; DESY-20-222; Imperial/TP/2020/RT/04; UCI-TR-2020-19; gambit-review-2020.-
2022-04-29 - 15 p.
- Published in : Rep. Prog. Phys.
Fulltext: PDF;
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4.
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Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2
/ Abdallah, Waleed (Harish-Chandra Res. Inst. ; Cairo U.) ; AbdusSalam, Shehu (Shahid Beheshti U.) ; Ahmadov, Azar (Baku State U.) ; Ahriche, Amine (ICTP, Trieste ; Algiers, Ecole Normale Superieure) ; Alguero, Gaël (LPSC, Grenoble) ; Allanach, Benjamin C. (Unlisted ; Cambridge U., DAMTP) ; Araz, Jack Y. (Concordia U., Montreal) ; Arbey, Alexandre (IP2I, Lyon ; CERN) ; Arina, Chiara (Louvain U., CP3) ; Athron, Peter (Monash U.) et al.
/LHC Reinterpretation Forum
We report on the status of efforts to improve the reinterpretation of searches and measurements at the LHC in terms of models for new physics, in the context of the LHC Reinterpretation Forum. We detail current experimental offerings in direct searches for new particles, measurements, technical implementations and Open Data, and provide a set of recommendations for further improving the presentation of LHC results in order to better enable reinterpretation in the future. [...]
arXiv:2003.07868; CERN-LPCC-2020-001; FERMILAB-FN-1098-CMS-T; Imperial/HEP/2020/RIF/01.-
2020-08-21 - 58 p.
- Published in : SciPost Phys. 9 (2020) 022
Fulltext: 2003.07868 - PDF; fermilab-fn-1098-cms-t - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server (fulltext available)
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5.
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Les Houches 2019 Physics at TeV Colliders: New Physics Working Group Report
/ Brooijmans, G. (Columbia U.) ; Buckley, A. (Glasgow U.) ; Caron, S. (Nijmegen U., IMAPP ; Nikhef, Amsterdam) ; Falkowski, A. (IJCLab, Orsay) ; Fuks, B. (IUF, Paris ; Paris, LPTHE) ; Gilbert, A. (Northwestern U.) ; Murray, W.J. (Warwick U. ; Rutherford) ; Nardecchia, M. (Rome U.) ; No, J.M. (Madrid, Autonoma U. ; Madrid, IFT) ; Torre, R. (INFN, Genoa ; CERN) et al.
This report presents the activities of the `New Physics' working group for the `Physics at TeV Colliders' workshop (Les Houches, France, 10--28 June, 2019). [...]
arXiv:2002.12220.
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227.
Fulltext
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6.
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Global fits of GUT-scale SUSY models with GAMBIT
/ GAMBIT Collaboration
We present the most comprehensive global fits to date of three supersymmetric models motivated by grand unification: the Constrained Minimal Supersymmetric Standard Model (CMSSM), and its Non-Universal Higgs Mass generalisations NUHM1 and NUHM2. We include likelihoods from a number of direct and indirect dark matter searches, a large collection of electroweak precision and flavour observables, direct searches for supersymmetry at LEP and Runs I and II of the LHC, and constraints from Higgs observables. [...]
arXiv:1705.07935; COEPP-MN-17-9; CERN-TH-2017-168; NORDITA 2017-080; CoEPP-MN-17-9; gambit-physics; gambit-physics-2017.-
2017-12-04 - 50 p.
- Published in : Eur. Phys. J. C 77 (2017) 824
Article from SCOAP3: PDF; Fulltext: 1705.07935 - PDF; 10.1140_epjc_s10052-017-5167-0 - PDF; arXiv:1705.07935 - PDF;
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7.
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A global fit of the MSSM with GAMBIT
/ GAMBIT Collaboration
We study the seven-dimensional Minimal Supersymmetric Standard Model (MSSM7) with the new GAMBIT software framework, with all parameters defined at the weak scale. Our analysis significantly extends previous weak-scale, phenomenological MSSM fits, by adding more and newer experimental analyses, improving the accuracy and detail of theoretical predictions, including dominant uncertainties from the Standard Model, the Galactic dark matter halo and the quark content of the nucleon, and employing novel and highly-efficient statistical sampling methods to scan the parameter space. [...]
arXiv:1705.07917; COEPP-MN-17-11; NORDITA-2017-081; CERN-TH-2017-169; CoEPP-MN-17-11; NORDITA 2017-081; gambit-physics; NORDITA 2017-081,
gambit-physics-2017.-
2017-12-18 - 30 p.
- Published in : Eur. Phys. J. C 77 (2017) 879
Article from SCOAP3: PDF; Fulltext: 1705.07917 - PDF; 10.1140_epjc_s10052-017-5196-8 - PDF; Preprint: PDF;
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8.
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GAMBIT: The Global and Modular Beyond-the-Standard-Model Inference Tool
/ GAMBIT Collaboration
We describe the open-source global fitting package GAMBIT: the Global And Modular Beyond-the-Standard-Model Inference Tool. GAMBIT combines extensive calculations of observables and likelihoods in particle and astroparticle physics with a hierarchical model database, advanced tools for automatically building analyses of essentially any model, a flexible and powerful system for interfacing to external codes, a suite of different statistical methods and parameter scanning algorithms, and a host of other utilities designed to make scans faster, safer and more easily-extendible than in the past. [...]
arXiv:1705.07908; COEPP-MN-17-6; NORDITA-2017-074; DESY-17-236; CERN-TH-2017-166; CoEPP-MN-17-6; NORDITA 2017-074; gambit-code-2017.-
2018-02-02 - 70 p.
- Published in : Eur. Phys. J. C
Article from SCOAP3: PDF; Fulltext: PDF; Preprint: PDF;
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9.
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Status of the scalar singlet dark matter model
/ GAMBIT Collaboration
One of the simplest viable models for dark matter is an additional neutral scalar, stabilised by a $\mathbb{Z}_2$ symmetry. Using the GAMBIT package and combining results from four independent samplers, we present Bayesian and frequentist global fits of this model. [...]
arXiv:1705.07931; COEPP-MN-17-10; CERN-TH-2017-170; NORDITA 2017-079; CoEPP-MN-17-10; gambit-physics; gambit-physics-2017.-
2017-08-23 - 17 p.
- Published in : Eur. Phys. J. C 77 (2017) 568
Article from SCOAP3: PDF; Fulltext: 1705.07931 - PDF; 10.1140_epjc_s10052-017-5113-1 - PDF; Preprint: PDF;
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10.
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Interpreting a CMS $lljjp_T^{\rm miss}$ Excess With the Golden Cascade of the MSSM
/ Allanach, Ben (Cambridge U., DAMTP) ; Raklev, Are R (Oslo U. ; Cambridge U., DAMTP) ; Kvellestad, Anders (Oslo U.)
CMS recently reported an excess consistent with an invariant mass edge in opposite-sign same flavor (OSSF) leptons, when produced in conjunction with at least two jets and missing transverse momentum. We provide an interpretation of the edge in terms of (anti-)squark pair production followed by the `golden cascade' decay for one of the squarks: $\tilde q \rightarrow \tilde\chi_2^0 q \to \tilde l l q \to \tilde\chi_1^0 q l l$ in the minimal supersymmetric standard model (MSSM). [...]
arXiv:1409.3532; DAMTP-2014-52.-
2015 - 5 p.
- Published in : Phys. Rev. D 91 (2015) 115022
APS Open Access article: PDF; External link: Preprint
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