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1.
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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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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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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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6.
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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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7.
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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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8.
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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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9.
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Precision tools and models to narrow in on the 750 GeV diphoton resonance
/ Staub, Florian (CERN) ; Athron, Peter (Monash U. ; ARC, CoEPP, Australia) ; Basso, Lorenzo (Marseille, CPPM) ; Goodsell, Mark D. (Paris, LPTHE ; UPMC, Paris (main)) ; Harries, Dylan (Adelaide U.) ; Krauss, Manuel E. (Bonn U.) ; Nickel, Kilian (Bonn U.) ; Opferkuch, Toby (Bonn U.) ; Ubaldi, Lorenzo (Tel Aviv U.) ; Vicente, Avelino (Valencia U., IFIC) et al.
The hints for a new resonance at 750 GeV from ATLAS and CMS have triggered a significant amount of attention. Since the simplest extensions of the standard model cannot accommodate the observation, many alternatives have been considered to explain the excess. [...]
arXiv:1602.05581; ADP-16-8-T963; BONN-TH-2016-01; CERN-TH-2016-033; DESY-16-025; IFIC-16-09; COEPP-MN-16-4; ADP-16-8-T963; BONN-TH-2016-01; CERN-TH-2016-033; DESY 16-025; IFIC-16-09.-
Geneva : CERN, 2016-09-23 - 57 p.
- Published in : Eur. Phys. J. C 76 (2016) 516
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF;
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10.
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Higgs mass predictions of public NMSSM spectrum generators
/ Staub, Florian (CERN) ; Athron, Peter (Monash U.) ; Ellwanger, Ulrich (Orsay, LPT ; Southampton U.) ; Gröber, Ramona (INFN, Rome3) ; Mühlleitner, Margarete (KIT, Karlsruhe, TTP) ; Slavich, Pietro (UPMC, Paris (main) ; Paris, LPTHE) ; Voigt, Alexander (DESY)
The publicly available spectrum generators for the NMSSM often lead to different predictions for the mass of the standard model-like Higgs boson even if using the same renormalization scheme and two-loop accuracy. Depending on the parameter point, the differences can exceed 5 GeV, and even reach 8 GeV for moderate superparticle masses of up to 2 TeV. [...]
arXiv:1507.05093; CERN-PH-TH-2015-164; DESY-15-122; KA-TP-16-2015; LPT-ORSAY-15-54; COEPP-MN-15-8; RM3-TH-15-11; CERN-PH-TH-2015-164; DESY 15-122; KA-TP-16-2015; LPT-ORSAY-15-54; RM3-TH-15-11.-
Geneva Geneva : CERN, CERN, 2016-05 - 18 p.
- Published in : Comput. Phys. Commun. 202 (2016) 113-130
Fulltext: PDF; External link: Preprint
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