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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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3.
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Likelihood analysis of the flavour anomalies and $g-2$ in the general two Higgs doublet model
/ Athron, Peter (Nanjing Normal U. ; Monash U.) ; Balazs, Csaba (Monash U.) ; Gonzalo, Tomás E. (RWTH Aachen U.) ; Jacob, Douglas (Monash U.) ; Mahmoudi, Farvah (IP2I, Lyon ; CERN) ; Sierra, Cristian (Monash U.)
We present a likelihood analysis of the general two Higgs doublet model, using the most important currently measured flavour observables, in view of the anomalies in charged current tree-level and neutral current one-loop rare decays of $B$ mesons in $b\to c l \overline{\nu}$ and $b\to s\mu^{+}\mu^{-}$ transitions, respectively. We corroborate that the model explains the latter and it is able to simultaneously fit the experimental values of the $R(D)$ ratio at $1\sigma$, but it can not accommodate the $R(D^{*})$ and $F_{L}(D^{*})$ observables. [...]
arXiv:2111.10464; CERN-TH-2021-194; TTK-21-47.-
2022-01-10 - 49 p.
- Published in : JHEP 01 (2022) 037
Fulltext: 2111.10464 - PDF; JHEP 01 (2020) 037 - PDF; document - PDF;
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4.
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5.
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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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6.
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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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7.
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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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8.
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A Frequentist analysis of three right-handed neutrinos with GAMBIT
/ Chrzaszcz, Marcin (CERN ; Cracow, INP) ; Drewes, Marco (Louvain U., CP3) ; Gonzalo, Tomás E. (Monash U.) ; Harz, Julia (Munich, Tech. U.) ; Krishnamurthy, Suraj (U. Amsterdam, GRAPPA) ; Weniger, Christoph (U. Amsterdam, GRAPPA)
The extension of the Standard Model by right-handed neutrinos can not only explain the active neutrino masses via the seesaw mechanism, it is also able solve a number of long standing problems in cosmology. Especially, masses below the TeV scale are of particular interest as they can lead to a plethora of signatures in experimental searches. [...]
arXiv:1908.02302; gambit-physics-2019.-
2020-06-24 - 56 p.
- Published in : Eur. Phys. J. C 80 (2020) 569
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Fulltext from Publisher: PDF;
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9.
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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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10.
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Flipped GUT Inflation
/ Ellis, John (King's Coll. London ; CERN) ; Gonzalo, Tomas E. (University Coll. London) ; Harz, Julia (University Coll. London) ; Huang, Wei-Chih (University Coll. London)
We analyse the prospects for constructing hybrid models of inflation that provide a dynamical realisation of the apparent closeness between the supersymmetric GUT scale and the possible scale of cosmological inflation. In the first place, we consider models based on the flipped SU(5)$\times$U(1) gauge group, which has no magnetic monopoles. [...]
arXiv:1412.1460; KCL-PH-TH-2014-49; LCTS-2014-50; CERN-PH-TH-2014-241; KCL-PH-TH-2014-49; LCTS-2014-50; CERN-PH-TH-2014-241.-
2015 - 21 p.
- Published in : JCAP 03 (2015) 039
Article from SCOAP3: PDF; Fulltext: PDF; IOP Open Access article: PDF; External link: Preprint
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