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161 results on '"Bagnaschi, E."'

1. Interdependence of the new 'MUON G-2' Result and the $W$-Boson Mass

Author: Bagnaschi, E., Chakraborti, M., Heinemeyer, S., Saha, I., and Weiglein, G.
Subjects: High Energy Physics - Phenomenology
Abstract: The electroweak (EW) sector of the Minimal Supersymmetric extension of the Standard Model (MSSM), assuming the lightest neutralino as Dark Matter (DM) candidate, can account for a variety of experimental results. In particular it can account for the discrepancy between the experimental result for the anomalous magnetic moment of the muon, $(g-2)_{\mu}$, and its Standard Model (SM) prediction. The new "MUON G-2" result, combined with the older BNL result on $(g-2)_{\mu}$, yields a deviation from the SM prediction of $\Delta a_{\mu} = (25.1 \pm 5.9) \times 10^{-10}$, corresponding to $4.2~\sigma$. Using this updated bound, together with the other constraints, we calculate the MSSM prediction for the mass of the $W$ boson, $M_W$. We assume contributions only from the EW sector, with the colored sector of the MSSM taken to be heavy. We investigate five scenarios, distinguished by the mechanisms which yield a relic DM density in agreement with the latest Planck bounds. We find that with the new $(g-2)_{\mu}$ result taken into account and depending on the scenario, values up to $M_W^{\mathrm{MSSM}} \lesssim 80.376~\mathrm{GeV}$ are reached. The largest values are obtained for wino DM and in the case of slepton co-annihilation, where points well within the $1\,\sigma$ range of the experimental world average of $M_W^{\mathrm{exp}} = 80.379 \pm~0.012~\mathrm{GeV}$ are reached, whereas the SM predicts a too small value of $M_W^{\mathrm{SM}} = 80.353~\mathrm{GeV}$. We analyze the dependence of $M_W^{\mathrm{MSSM}}$ on the relevant masses of the EW superpartners and demonstrate that future $M_W$ measurements, e.g. at the ILC, could distinguish between various MSSM realizations. Sizable contributions to $M_W^{\mathrm{MSSM}}$ are associated with a relatively light $\tilde{\chi}^0_1$, accompanied by either a light chargino or a light smuon, setting interesting targets for future collider searches., Comment: 26 pages, 7 figures; v2: slight modification to text and note added in relation to the recent CDF MW measurement
Published: 2022
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2. Higgs-mass predictions in the MSSM and beyond

Author: Slavich, P., Heinemeyer, S., Bagnaschi, E., Bahl, H., Goodsell, M., Haber, H. E., Hahn, T., Harlander, R., Hollik, W., Lee, G., Mühlleitner, M., Paßehr, S., Rzehak, H., Stöckinger, D., Voigt, A., Wagner, C. E. M., Weiglein, G., Allanach, B. C., Biekötter, T., Borowka, S., Braathen, J., Carena, M., Dao, T. N., Degrassi, G., Domingo, F., Drechsel, P., Ellwanger, U., Gabelmann, M., Gröber, R., Klappert, J., Kwasnitza, T., Meuser, D., Mihaila, L., Murphy, N., Nickel, K., Porod, W., Rojas, E. A. Reyes, Sobolev, I., and Staub, F.
Subjects: High Energy Physics - Phenomenology
Abstract: Predictions for the Higgs masses are a distinctive feature of supersymmetric extensions of the Standard Model, where they play a crucial role in constraining the parameter space. The discovery of a Higgs boson and the remarkably precise measurement of its mass at the LHC have spurred new efforts aimed at improving the accuracy of the theoretical predictions for the Higgs masses in supersymmetric models. The "Precision SUSY Higgs Mass Calculation Initiative" (KUTS) was launched in 2014 to provide a forum for discussions between the different groups involved in these efforts. This report aims to present a comprehensive overview of the current status of Higgs-mass calculations in supersymmetric models, to document the many advances that were achieved in recent years and were discussed during the KUTS meetings, and to outline the prospects for future improvements in these calculations., Comment: iv, 79 pages; 5 figures. v2: iv, 99 pages; added appendix on public codes for the Higgs-mass calculation in SUSY models. v3: minor modifications, references updated; matches version published in EPJC. v4: hyperlinks enabled
Published: 2020
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3. Parton Density Uncertainties and the Determination of Electroweak Parameters at Hadron Colliders

Author: Bagnaschi, E. and Vicini, A.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract: We discuss the determination of electroweak parameters from hadron collider observables, focusing on the $W$ boson mass measurement. We revise the procedures adopted in the literature to include in the experimental analysis the uncertainty due to our imperfect knowledge of the proton structure. We show how the treatment of the proton parton density functions (PDFs) uncertainty as a source of systematic error, leads to the automatic inclusion in the fit of the bin-bin correlation of the kinematic distributions with respect to PDF variations. In the case of the determination of $M_W$ from the charged lepton transverse momentum distribution, we observe that the inclusion of this correlation factor yields a strong reduction of the PDF uncertainty, given a sufficiently good control over all the other error sources. This improvement depends on a systematic accounting of the features of the QCD-based PDF model, and it is achieved relying only on the information available in current PDF sets. While a realistic quantitative estimate requires to take into account the details of the experimental systematics, we argue that, in perspective, the proton PDF uncertainty will not be a bottleneck for precision measurements., Comment: 5 pages, 6 figures; v2: title changed, minor textual changes, version published on PRL
Published: 2019
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4. Higgs boson potential at colliders: status and perspectives

Author: Di Micco, B., Gouzevitch, M., Mazzitelli, J., Vernieri, C., Alison, J., Androsov, K., Baglio, J., Bagnaschi, E., Banerjee, S., Basler, P., Bethani, A., Betti, A., Blanke, M., Blondel, A., Borgonovi, L., Brost, E., Bryant, P., Buchalla, G., Burch, T. J., Cairo, V. M. M., Campanario, F., Carena, M., Carvalho, A., Chernyavskaya, N., D'Amico, V., Dawson, S., De Filippis, N., Di Luzio, L., Di Vita, S., Dillon, B., Englert, C., Ferrari, A., Fontanesi, E., Fox, H., Gallinaro, M., Giardino, P. P., Glaus, S., Goertz, F., Gori, S., Gröber, R., Grojean, C., Ibarra, D. F. Guerrero, Gupta, R., Haisch, U., Heinrich, G., Huang, P., Janot, P., Jones, S. P., Kagan, M. A., Kast, S., Kerner, M., Kim, J. H., Kong, K., Kozaczuk, J., Krauss, F., Kuttimalai, S., Lee, H. M., Leney, K., Lewis, I. M., Liebler, S., Liu, Z., Logan, H. E., Long, A., Maltoni, F., Manzoni, S., Mastrolorenzo, L., Matchev, K., Micheli, F., Mühlleitner, M., Neubauer, M. S., Ortona, G., Osherson, M., Pagani, D., Panico, G., Papaefstathiou, A., Park, M., Peskin, M. E., Quevillon, J., Riembau, M., Robens, T., Roloff, P., Rzehak, H., Schaarschmidt, J., Schnoor, U., Scyboz, L., Selvaggi, M., Shah, N. R., Shivaji, A., Shrestha, S., Sinha, K., Spannowsky, M., Spira, M., Stefaniak, T., Streicher, J., Sullivan, M., Swiatlowski, M., de Lima, R. Teixeira, Thomson, J., Tian, J., Vantalon, T., Veelken, C., Vickey, T., Vryonidou, E., Wells, J., Westhoff, S., Zhao, X., and Zurita, J.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract: This document summarises the current theoretical and experimental status of the di-Higgs boson production searches, and of the direct and indirect constraints on the Higgs boson self-coupling, with the wish to serve as a useful guide for the next years. The document discusses the theoretical status, including state-of-the-art predictions for di-Higgs cross sections, developments on the effective field theory approach, and studies on specific new physics scenarios that can show up in the di-Higgs final state. The status of di-Higgs searches and the direct and indirect constraints on the Higgs self-coupling at the LHC are presented, with an overview of the relevant experimental techniques, and covering all the variety of relevant signatures. Finally, the capabilities of future colliders in determining the Higgs self-coupling are addressed, comparing the projected precision that can be obtained in such facilities. The work has started as the proceedings of the Di-Higgs workshop at Colliders, held at Fermilab from the 4th to the 9th of September 2018, but it went beyond the topics discussed at that workshop and included further developments., Comment: 279 pages, 136 figures, document produced partially as outcome of the conference Double Higgs Production at Colliders - Fermilab - Chicago (US) 4 - 9 September 2018. Submitted to Review in Physics. The editors can be contacted at the following address: hh-2018-paper-editors@cern.ch
Published: 2019
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5. Global Analysis of Dark Matter Simplified Models with Leptophobic Spin-One Mediators using MasterCode

Author: Bagnaschi, E., Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Hahn, K., Heinemeyer, S., Lucio, M., Santos, D. Martínez, Olive, K. A., Trifa, S., and Weiglein, G.
Subjects: High Energy Physics - Phenomenology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: We report the results of a global analysis of dark matter simplified models (DMSMs) with leptophobic mediator particles of spin one, considering the cases of both vector and axial-vector interactions with dark matter (DM) particles and quarks. We require the DMSMs to provide all the cosmological DM density indicated by Planck and other observations, and we impose the upper limits on spin-independent and -dependent scattering from direct DM search experiments. We also impose all relevant LHC constraints from searches for monojet events and measurements of the dijet mass spectrum. We model the likelihood functions for all the constraints and combine them within the MasterCode framework, and probe the full DMSM parameter spaces by scanning over the mediator and DM masses and couplings, not fixing any of the model parameters. We find, in general, two allowed regions of the parameter spaces: one in which the mediator couplings to Standard Model (SM) and DM particles may be comparable to those in the SM and the cosmological DM density is reached via resonant annihilation, and one in which the mediator couplings to quarks are $\lesssim 10^{-3}$ and DM annihilation is non-resonant. We find that the DM and mediator masses may well lie within the ranges accessible to LHC experiments. We also present predictions for spin-independent and -dependent DM scattering, and present specific results for ranges of the DM couplings that may be favoured in ultraviolet completions of the DMSMs., Comment: 24 pages, 16 figures
Published: 2019
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6. Supersymmetric Models in Light of Improved Higgs Mass Calculations

Author: Bagnaschi, E., Bahl, H., Ellis, J., Evans, J., Hahn, T., Heinemeyer, S., Hollik, W., Olive, K. A., Paßehr, S., Rzehak, H., Sobolev, I. V., Weiglein, G., and Zheng, J.
Subjects: High Energy Physics - Phenomenology
Abstract: We discuss the parameter spaces of supersymmetry (SUSY) scenarios taking into account the improved Higgs-mass prediction provided by FeynHiggs 2.14.1. Among other improvements, this prediction incorporates three-loop renormalization-group effects and two-loop threshold corrections, and can accommodate three separate mass scales: m_{\tilde q} (for squarks), m_{\tilde g} (for gluinos) and m_{\tilde\chi} (for electroweakinos). Furthermore, it contains an improved treatment of the DRbar scalar top parameters avoiding problems with the conversion to on-shell parameters, that yields more accurate results for large SUSY-breaking scales. We first consider the CMSSM, in which the soft SUSY-breaking parameters m_0 and m_{1/2} are universal at the GUT scale, and then sub-GUT models in which universality is imposed at some lower scale. In both cases, we consider the constraints from the Higgs-boson mass M_h in the bulk of the (m_0, m_{1/2}) plane and also along stop coannihilation strips where sparticle masses may extend into the multi-TeV range. We then consider the minimal anomaly-mediated SUSY-breaking (mAMSB) scenario, in which large sparticle masses are generic. In all these scenarios the substantial improvements between the calculations of M_h in FeynHiggs 2.14.1 and FeynHiggs 2.10.0, which was used in an earlier study, change significantly the preferred portions of the models' parameter spaces. Finally, we consider the pMSSM11, in which sparticle masses may be significantly smaller and we find only small changes in the preferred regions of parameter space., Comment: 35 pages, 12 figues
Published: 2018
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7. Likelihood Analysis of the Sub-GUT MSSM in Light of LHC 13-TeV Data

Author: Costa, J. C., Bagnaschi, E., Sakurai, K., Borsato, M., Buchmueller, O., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Lucio, M., Santos, D. Martínez, Olive, K. A., Richards, A., and Weiglein, G.
Subjects: High Energy Physics - Phenomenology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: We describe a likelihood analysis using MasterCode of variants of the MSSM in which the soft supersymmetry-breaking parameters are assumed to have universal values at some scale $M_{in}$ below the supersymmetric grand unification scale $M_{GUT}$, as can occur in mirage mediation and other models. In addition to $M_{in}$, such `sub-GUT' models have the 4 parameters of the CMSSM, namely a common gaugino mass $m_{1/2}$, a common soft supersymmetry-breaking scalar mass $m_0$, a common trilinear mixing parameter $A$ and the ratio of MSSM Higgs vevs $\tan\beta$, assuming that the Higgs mixing parameter $\mu > 0$. We take into account constraints on strongly- and electroweakly-interacting sparticles from $\sim 36$/fb of LHC data at 13 TeV and the LUX and 2017 PICO, XENON1T and PandaX-II searches for dark matter scattering, in addition to the previous LHC and dark matter constraints as well as full sets of flavour and electroweak constraints. We find a preference for $M_{in} \sim 10^5$ to $10^9$ GeV, with $M_{in} \sim M_{GUT}$ disfavoured by $\Delta \chi^2 \sim 3$ due to the ${\rm BR}(B_{s, d} \to \mu^+\mu^-)$ constraint. The lower limits on strongly-interacting sparticles are largely determined by LHC searches, and similar to those in the CMSSM. We find a preference for the LSP to be a Bino or Higgsino with $\tilde{\chi^0_1} \sim 1$ TeV, with annihilation via heavy Higgs bosons $H/A$ and stop coannihilation, or chargino coannihilation, bringing the cold dark matter density into the cosmological range. We find that spin-independent dark matter scattering is likely to be within reach of the planned LUX-Zeplin and XENONnT experiments. We probe the impact of the $(g-2)_\mu$ constraint, finding similar results whether or not it is included., Comment: 30 pages, 15 figures, 42 plots, 4 tables. Exploratory study considering \mu < 0
Published: 2017
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8. Likelihood Analysis of the pMSSM11 in Light of LHC 13-TeV Data

Author: Bagnaschi, E., Sakurai, K., Borsato, M., Buchmueller, O., Citron, M., Costa, J. C., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Lucio, M., Santos, D. Martínez, Olive, K. A., Richards, A., Spanos, V. C., Fernández, I. Suárez, and Weiglein, G.
Subjects: High Energy Physics - Phenomenology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: We use MasterCode to perform a frequentist analysis of the constraints on a phenomenological MSSM model with 11 parameters, the pMSSM11, including constraints from ~ 36/fb of LHC data at 13 TeV and PICO, XENON1T and PandaX-II searches for dark matter scattering, as well as previous accelerator and astrophysical measurements, presenting fits both with and without the $(g-2)_{\mu}$ constraint. The pMSSM11 is specified by the following parameters: 3 gaugino masses $M_{1,2,3}$, a common mass for the first-and second-generation squarks $m_{\tilde{q}}$ and a distinct third-generation squark mass $m_{\tilde{q}_3}$, a common mass for the first-and second-generation sleptons $m_{\tilde l}$ and a distinct third-generation slepton mass $m_{\tilde \tau}$, a common trilinear mixing parameter $A$, the Higgs mixing parameter $\mu$, the pseudoscalar Higgs mass $M_A$ and $\tan\beta$. In the fit including $(g-2)_{\mu}$, a Bino-like $\tilde\chi^0_1$ is preferred, whereas a Higgsino-like $\tilde \chi^0_1$ is favoured when the $(g-2)_{\mu}$ constraint is dropped. We identify the mechanisms that operate in different regions of the pMSSM11 parameter space to bring the relic density of the lightest neutralino, $\tilde\chi^0_1$, into the range indicated by cosmological data. In the fit including $(g-2)_{\mu}$, coannihilations with $\tilde \chi^0_2$ and the Wino-like $\tilde\chi^{\pm}_1$ or with nearly-degenerate first- and second-generation sleptons are favoured, whereas coannihilations with the $\tilde \chi^0_2$ and the Higgsino-like $\tilde\chi^{\pm}_1$ or with first- and second-generation squarks may be important when the $(g-2)_{\mu}$ constraint is dropped. Prospects remain for discovering strongly-interacting sparticles at the LHC as well as for discovering electroweakly-interacting sparticles at a future linear $e^+ e^-$ collider such as the ILC or CLIC., Comment: 48 pages, 24 figures, 65 plots, 6 tables; version published on EPJC
Published: 2017
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9. Likelihood Analysis of the Minimal AMSB Model

Author: Bagnaschi, E., Borsato, M., Sakurai, K., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., Costa, J. C., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Isidori, G., Lucio, M., Luo, F., Santos, D. Martínez, Olive, K. A., Richards, A., and Weiglein, G.
Subjects: High Energy Physics - Phenomenology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: We perform a likelihood analysis of the minimal Anomaly-Mediated Supersymmetry Breaking (mAMSB) model using constraints from cosmology and accelerator experiments. We find that a wino-like or a Higgsino-like neutralino LSP, $m_{\tilde \chi^0_{1}}$, may provide the cold dark matter (DM) with similar likelihood. The upper limit on the DM density from Planck and other experiments enforces $m_{\tilde \chi^0_{1}} \lesssim 3~TeV$ after the inclusion of Sommerfeld enhancement in its annihilations. If most of the cold DM density is provided by the $\tilde \chi_0^1$, the measured value of the Higgs mass favours a limited range of $\tan \beta \sim 5$ (or for $\mu > 0$, $\tan \beta \sim 45$) but the scalar mass $m_0$ is poorly constrained. In the wino-LSP case, $m_{3/2}$ is constrained to about $900~TeV$ and ${m_{\tilde \chi^0_{1}}}$ to $2.9\pm0.1~TeV$, whereas in the Higgsino-LSP case $m_{3/2}$ has just a lower limit $\gtrsim 650TeV$ ($\gtrsim 480TeV$) and $m_{\tilde \chi^0_{1}}$ is constrained to $1.12 ~(1.13) \pm0.02~TeV$ in the $\mu>0$ ($\mu<0$) scenario. In neither case can the anomalous magnetic moment of the muon, ${(g-2)_\mu}$, be improved significantly relative to its Standard Model (SM) value, nor do flavour measurements constrain the model significantly, and there are poor prospects for discovering supersymmetric particles at the LHC, {though there} are some prospects for direct DM detection. On the other hand, if the ${m_{\tilde \chi^0_{1}}}$ contributes only a fraction of the cold DM density, {future LHC $E_T$-based searches for gluinos, squarks and heavier chargino and neutralino states as well as disappearing track searches in the wino-like LSP region will be relevant}, and interference effects enable ${\rm BR}(B_{s, d} \to \mu^+\mu^-)$ to agree with the data better than in the SM in the case of wino-like DM with $\mu > 0$.
Published: 2016
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10. Likelihood Analysis of Supersymmetric SU(5) GUTs

Author: Bagnaschi, E., Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Isidori, G., Lucio, M., Santos, D. Martínez, Olive, K. A., Richards, A., de Vries, K. J., and Weiglein, G.
Subjects: High Energy Physics - Phenomenology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter space of the models studied has 7 parameters: a universal gaugino mass $m_{1/2}$, distinct masses for the scalar partners of matter fermions in five- and ten-dimensional representations of SU(5), $m_5$ and $m_{10}$, and for the $\mathbf{5}$ and $\mathbf{\bar 5}$ Higgs representations $m_{H_u}$ and $m_{H_d}$, a universal trilinear soft SUSY-breaking parameter $A_0$, and the ratio of Higgs vevs $\tan \beta$. In addition to previous constraints from direct sparticle searches, low-energy and flavour observables, we incorporate constraints based on preliminary results from 13 TeV LHC searches for jets + MET events and long-lived particles, as well as the latest PandaX-II and LUX searches for direct Dark Matter detection. In addition to previously-identified mechanisms for bringing the supersymmetric relic density into the range allowed by cosmology, we identify a novel ${\tilde u_R}/{\tilde c_R} - \tilde{\chi}^0_1$ coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of ${\tilde \nu_\tau}$ coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC., Comment: 38 pages, 22 figures, version published on EPJC
Published: 2016
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11. Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector

Author: de Florian, D., Grojean, C., Maltoni, F., Mariotti, C., Nikitenko, A., Pieri, M., Savard, P., Schumacher, M., Tanaka, R., Aggleton, R., Ahmad, M., Allanach, B., Anastasiou, C., Astill, W., Badger, S., Badziak, M., Baglio, J., Bagnaschi, E., Ballestrero, A., Banfi, A., Barducci, D., Beckingham, M., Becot, C., Bélanger, G., Bellm, J., Belyaev, N., Bernlochner, F. U., Beskidt, C., Biekötter, A., Bishara, F., Bizon, W., Bomark, N. E., Bonvini, M., Borowka, S., Bortolotto, V., Boselli, S., Botella, F. J., Boughezal, R., Branco, G. C., Brehmer, J., Brenner, L., Bressler, S., Brivio, I., Broggio, A., Brun, H., Buchalla, G., Burgard, C. D., Calandri, A., Caminada, L., Armadans, R. Caminal, Campanario, F., Campbell, J., Caola, F., Calame, C. M. Carloni, Carrazza, S., Carvalho, A., Casolino, M., Cata, O., Celis, A., Cerutti, F., Chanon, N., Chen, M., Chen, X., Nejad, B. Chokoufé, Christensen, N., Ciuchini, M., Contino, R., Corbett, T., Costa, R., Curtin, D., Dall'Osso, M., David, A., Dawson, S., de Blas, J., de Boer, W., Manzano, P. de Castro, Degrande, C., Delgado, R. L., Demartin, F., Denner, A., Di Micco, B., Di Nardo, R., Dittmaier, S., Dobado, A., Dorigo, T., Dreyer, F. A., Dührssen, M., Duhr, C., Dulat, F., Ecker, K., Ellis, K., Ellwanger, U., Englert, C., Espriu, D., Falkowski, A., Fayard, L., Feger, R., Ferrera, G., Ferroglia, A., Fidanza, N., Figy, T., Flechl, M., Fontes, D., Forte, S., Francavilla, P., Franco, E., Frederix, R., Freitas, A., Freitas, F. F., Frensch, F., Frixione, S., Fuks, B., Furlan, E., Gadatsch, S., Gao, J., Gao, Y., Garzelli, M. V., Gehrmann, T., Gerosa, R., Ghezzi, M., Ghosh, D., Gieseke, S., Gillberg, D., Giudice, G. F., Glover, E. W. N., Goertz, F., Gonçalves, D., Gonzalez-Fraile, J., Gorbahn, M., Gori, S., Gottardo, C. A., Gouzevitch, M., Govoni, P., Gray, D., Grazzini, M., Greiner, N., Greljo, A., Grigo, J., Gritsan, A. V., Gröber, R., Guindon, S., Haber, H. E., Han, C., Han, T., Harlander, R., Harrendorf, M. A., Hartanto, H. B., Hays, C., Heinemeyer, S., Heinrich, G., Herrero, M., Herzog, F., Hespel, B., Hirschi, V., Hoeche, S., Honeywell, S., Huber, S. J., Hugonie, C., Huston, J., Ilnicka, A., Isidori, G., Jäger, B., Jaquier, M., Jones, S. P., Juste, A., Kallweit, S., Kaluza, A., Kardos, A., Karlberg, A., Kassabov, Z., Kauer, N., Kazakov, D. I., Kerner, M., Kilian, W., Kling, F., Köneke, K., Kogler, R., Konoplich, R., Kortner, S., Kraml, S., Krause, C., Krauss, F., Krawczyk, M., Kulesza, A., Kuttimalai, S., Lane, R., Lazopoulos, A., Lee, G., Lenzi, P., Lewis, I. M., Li, Y., Liebler, S., Lindert, J., Liu, X., Liu, Z., Llanes-Estrada, F. J., Logan, H. E., Lopez-Val, D., Low, I., Luisoni, G., Maierhöfer, P., Maina, E., Mansoulié, B., Mantler, H., Mantoani, M., Marini, A. C., Outschoorn, V. I. Martinez, Marzani, S., Marzocca, D., Massironi, A., Mawatari, K., Mazzitelli, J., McCarn, A., Mellado, B., Melnikov, K., Menari, S. B., Merlo, L., Meyer, C., Milenovic, P., Mimasu, K., Mishima, S., Mistlberger, B., Moch, S. -O., Mohammadi, A., Monni, P. F., Montagna, G., Llácer, M. Moreno, Moretti, N., Moretti, S., Motyka, L., Mück, A., Mühlleitner, M., Munir, S., Musella, P., Nadolsky, P., Napoletano, D., Nebot, M., Neu, C., Neubert, M., Nevzorov, R., Nicrosini, O., Nielsen, J., Nikolopoulos, K., No, J. M., O'Brien, C., Ohl, T., Oleari, C., Orimoto, T., Pagani, D., Pandini, C. E., Papaefstathiou, A., Papanastasiou, A. S., Passarino, G., Pecjak, B. D., Pelliccioni, M., Perez, G., Perrozzi, L., Petriello, F., Petrucciani, G., Pianori, E., Piccinini, F., Pierini, M., Pilkington, A., Plätzer, S., Plehn, T., Podskubka, R., Potter, C. T., Pozzorini, S., Prokofiev, K., Pukhov, A., Puljak, I., Queitsch-Maitland, M., Quevillon, J., Rathlev, D., Rauch, M., Re, E., Rebelo, M. N., Rebuzzi, D., Reina, L., Reuschle, C., Reuter, J., Riembau, M., Riva, F., Rizzi, A., Robens, T., Röntsch, R., Rojo, J., Romão, J. C., Rompotis, N., Roskes, J., Roth, R., Salam, G. P., Salerno, R., Sampaio, M. O. P., Santos, R., Sanz, V., Sanz-Cillero, J. J., Sargsyan, H., Sarica, U., Schichtel, P., Schlenk, J., Schmidt, T., Schmitt, C., Schönherr, M., Schubert, U., Schulze, M., Sekula, S., Sekulla, M., Shabalina, E., Shao, H. S., Shelton, J., Shepherd-Themistocleous, C. H., Shim, S. Y., Siegert, F., Signer, A., Silva, J. P., Silvestrini, L., Sjodahl, M., Slavich, P., Slawinska, M., Soffi, L., Spannowsky, M., Speckner, C., Sperka, D. M., Spira, M., Stål, O., Staub, F., Stebel, T., Stefaniak, T., Steinhauser, M., Stewart, I. W., Strassler, M. J., Streicher, J., Strom, D. M., Su, S., Sun, X., Tackmann, F. J., Tackmann, K., Teixeira, A. M., de Lima, R. Teixeira, Theeuwes, V., Thorne, R., Tommasini, D., Torrielli, P., Tosi, M., Tramontano, F., Trócsányi, Z., Trott, M., Tsinikos, I., Ubiali, M., Vanlaer, P., Verkerke, W., Vicini, A., Viliani, L., Vryonidou, E., Wackeroth, D., Wagner, C. E. M., Wang, J., Wayand, S., Weiglein, G., Weiss, C., Wiesemann, M., Williams, C., Winter, J., Winterbottom, D., Wolf, R., Xiao, M., Yang, L. L., Yohay, R., Yuen, S. P. Y., Zanderighi, G., Zaro, M., Zeppenfeld, D., Ziegler, R., Zirke, T., and Zupan, J.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract: This Report summarizes the results of the activities of the LHC Higgs Cross Section Working Group in the period 2014-2016. The main goal of the working group was to present the state-of-the-art of Higgs physics at the LHC, integrating all new results that have appeared in the last few years. The first part compiles the most up-to-date predictions of Higgs boson production cross sections and decay branching ratios, parton distribution functions, and off-shell Higgs boson production and interference effects. The second part discusses the recent progress in Higgs effective field theory predictions, followed by the third part on pseudo-observables, simplified template cross section and fiducial cross section measurements, which give the baseline framework for Higgs boson property measurements. The fourth part deals with the beyond the Standard Model predictions of various benchmark scenarios of Minimal Supersymmetric Standard Model, extended scalar sector, Next-to-Minimal Supersymmetric Standard Model and exotic Higgs boson decays. This report follows three previous working-group reports: Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables (CERN-2011-002), Handbook of LHC Higgs Cross Sections: 2. Differential Distributions (CERN-2012-002), and Handbook of LHC Higgs Cross Sections: 3. Higgs properties (CERN-2013-004). The current report serves as the baseline reference for Higgs physics in LHC Run 2 and beyond., Comment: 869 pages, 295 figures, 248 tables and 1645 citations. Working Group web page: https://twiki.cern.ch/twiki/bin/view/LHCPhysics/LHCHXSWG
Published: 2016
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12. Supersymmetric Dark Matter after LHC Run 1

Author: Bagnaschi, E. A., Buchmueller, O., Cavanaugh, R., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flaecher, H., Heinemeyer, S., Isidori, G., Malik, S., Santos, D. Martinez, Olive, K. A., Sakurai, K., de Vries, K. J., and Weiglein, G.
Subjects: High Energy Physics - Phenomenology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment, High Energy Physics - Theory
Abstract: Different mechanisms operate in various regions of the MSSM parameter space to bring the relic density of the lightest neutralino, neutralino_1, assumed here to be the LSP and thus the Dark Matter (DM) particle, into the range allowed by astrophysics and cosmology. These mechanisms include coannihilation with some nearly-degenerate next-to-lightest supersymmetric particle (NLSP) such as the lighter stau (stau_1), stop (stop_1) or chargino (chargino_1), resonant annihilation via direct-channel heavy Higgs bosons H/A, the light Higgs boson h or the Z boson, and enhanced annihilation via a larger Higgsino component of the LSP in the focus-point region. These mechanisms typically select lower-dimensional subspaces in MSSM scenarios such as the CMSSM, NUHM1, NUHM2 and pMSSM10. We analyze how future LHC and direct DM searches can complement each other in the exploration of the different DM mechanisms within these scenarios. We find that the stau_1 coannihilation regions of the CMSSM, NUHM1, NUHM2 can largely be explored at the LHC via searches for missing E_T events and long-lived charged particles, whereas their H/A funnel, focus-point and chargino_1 coannihilation regions can largely be explored by the LZ and Darwin DM direct detection experiments. We find that the dominant DM mechanism in our pMSSM10 analysis is chargino_1 coannihilation: {parts of its parameter space can be explored by the LHC, and a larger portion by future direct DM searches., Comment: 21 pages, 8 figures
Published: 2015

13. The pMSSM10 after LHC Run 1

Author: de Vries, K. J., Bagnaschi, E. A., Buchmueller, O., Cavanaugh, R., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flaecher, H., Heinemeyer, S., Isidori, G., Malik, S., Marrouche, J., Santos, D. Martinez, Olive, K. A., Sakurai, K., and Weiglein, G.
Subjects: High Energy Physics - Phenomenology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract: We present a frequentist analysis of the parameter space of the pMSSM10, in which the following 10 soft SUSY-breaking parameters are specified independently at the mean scalar top mass scale Msusy = Sqrt[M_stop1 M_stop2]: the gaugino masses M_{1,2,3}, the 1st-and 2nd-generation squark masses M_squ1 = M_squ2, the third-generation squark mass M_squ3, a common slepton mass M_slep and a common trilinear mixing parameter A, the Higgs mixing parameter mu, the pseudoscalar Higgs mass M_A and tan beta. We use the MultiNest sampling algorithm with 1.2 x 10^9 points to sample the pMSSM10 parameter space. A dedicated study shows that the sensitivities to strongly-interacting SUSY masses of ATLAS and CMS searches for jets, leptons + MET signals depend only weakly on many of the other pMSSM10 parameters. With the aid of the Atom and Scorpion codes, we also implement the LHC searches for EW-interacting sparticles and light stops, so as to confront the pMSSM10 parameter space with all relevant SUSY searches. In addition, our analysis includes Higgs mass and rate measurements using the HiggsSignals code, SUSY Higgs exclusion bounds, the measurements B-physics observables, EW precision observables, the CDM density and searches for spin-independent DM scattering. We show that the pMSSM10 is able to provide a SUSY interpretation of (g-2)_mu, unlike the CMSSM, NUHM1 and NUHM2. As a result, we find (omitting Higgs rates) that the minimum chi^2/dof = 20.5/18 in the pMSSM10, corresponding to a chi^2 probability of 30.8 %, to be compared with chi^2/dof = 32.8/24 (31.1/23) (30.3/22) in the CMSSM (NUHM1) (NUHM2). We display 1-dimensional likelihood functions for SUSY masses, and show that they may be significantly lighter in the pMSSM10 than in the CMSSM, NUHM1 and NUHM2. We discuss the discovery potential of future LHC runs, e+e- colliders and direct detection experiments., Comment: 47 pages, 29 figures
Published: 2015
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14. Towards precise predictions for Higgs-boson production in the MSSM

Author: Bagnaschi, E., Harlander, R. V., Liebler, S., Mantler, H., Slavich, P., and Vicini, A.
Subjects: High Energy Physics - Phenomenology
Abstract: We study the production of scalar and pseudoscalar Higgs bosons via gluon fusion and bottom-quark annihilation in the MSSM. Relying on the NNLO-QCD calculation implemented in the public code SusHi, we provide precise predictions for the Higgs-production cross section in six benchmark scenarios compatible with the LHC searches. We also provide a detailed discussion of the sources of theoretical uncertainty in our calculation. We examine the dependence of the cross section on the renormalization and factorization scales, on the precise definition of the Higgs-bottom coupling and on the choice of PDFs, as well as the uncertainties associated to our incomplete knowledge of the SUSY contributions through NNLO. In particular, a potentially large uncertainty originates from uncomputed higher-order QCD corrections to the bottom-quark contributions to gluon fusion., Comment: 62 pages, 24 pdf figures; v2: minor clarifications, improved plot quality, matches published version
Published: 2014
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15. Handbook of LHC Higgs Cross Sections: 3. Higgs Properties

Author: The LHC Higgs Cross Section Working Group, Heinemeyer, S., Mariotti, C., Passarino, G., Tanaka, R., Andersen, J. R., Artoisenet, P., Bagnaschi, E. A., Banfi, A., Becher, T., Bernlochner, F. U., Bolognesi, S., Bolzoni, P., Boughezal, R., Buarque, D., Campbell, J., Caola, F., Carena, M., Cascioli, F., Chanon, N., Cheng, T., Choi, S. Y., David, A., de Aquino, P., Degrassi, G., Del Re, D., Denner, A., van Deurzen, H., Diglio, S., Di Micco, B., Di Nardo, R., Dittmaier, S., Duhrssen, M., Ellis, R. K., Ferrera, G., Fidanza, N., Flechl, M., de Florian, D., Forte, S., Frederix, R., Frixione, S., Gangal, S., Gao, Y., Garzelli, M. V., Gillberg, D., Govoni, P., Grazzini, M., Greiner, N., Griffiths, J., Gritsan, A . V., Grojean, C., Hall, D. C., Hays, C., Harlander, R., Hernandez-Pinto, R., Hoche, S., Huston, J., Jubb, T., Kadastik, M., Kallweit, S., Kardos, A., Kashif, L., Kauer, N., Kim, H., Klees, R., Kramer, M., Krauss, F., Laureys, A., Laurila, S., Lehti, S., Li, Q., Liebler, S., Liu, X., Logan, H. E., Luisoni, G., Malberti, M., Maltoni, F., Mawatari, K., Maierhofer, F., Mantler, H., Martin, S., Mastrolia, P., Mattelaer, O., Mazzitelli, J., Mellado, B., Melnikov, K., Meridiani, P., Miller, D. J., Mirabella, E., Moch, S. O., Monni, P., Moretti, N., Muck, A., Muhlleitner, M., Musella, P., Nason, P., Neu, C., Neubert, M., Oleari, C., Olsen, J., Ossola, G., Peraro, T., Peters, K., Petriello, F., Piacquadio, G., Potter, C. T., Pozzorini, S., Prokofiev, K., Puljak, I., Rauch, M., Rebuzzi, D., Reina, L., Rietkerk, R., Rizzi, A., Rotstein-Habarnau, Y., Salam, G. P., Sborlini, G., Schissler, F., Schonherr, M., Schulze, M., Schumacher, M., Siegert, F., Slavich, P., Smillie, J. M., Stal, O., von Soden-Fraunhofen, J. F., Spira, M., Stewart, I. W., Tackmann, F. J., Taylor, P. T. E., Tommasini, D., Thompson, J., Thorne, R. S., Torrielli, P., Tramontano, F., Tran, N. V., Trocsanyi, Z., Ubiali, M., Vanlaer, P., Acosta, M. Vazquez, Vickey, T., Vicini, A., Waalewijn, W. J., Wackeroth, D., Wagner, C., Walsh, J. R., Wang, J., Weiglein, G., Whitbeck, A., Williams, C., Yu, J., Zanderighi, G., Zanetti, M., Zaro, M., Zerwas, P. M., Zhang, C., Zirke, T. J . E., and Zuberi, S.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract: This Report summarizes the results of the activities in 2012 and the first half of 2013 of the LHC Higgs Cross Section Working Group. The main goal of the working group was to present the state of the art of Higgs Physics at the LHC, integrating all new results that have appeared in the last few years. This report follows the first working group report Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables (CERN-2011-002) and the second working group report Handbook of LHC Higgs Cross Sections: 2. Differential Distributions (CERN-2012-002). After the discovery of a Higgs boson at the LHC in mid-2012 this report focuses on refined prediction of Standard Model (SM) Higgs phenomenology around the experimentally observed value of 125-126 GeV, refined predictions for heavy SM-like Higgs bosons as well as predictions in the Minimal Supersymmetric Standard Model and first steps to go beyond these models. The other main focus is on the extraction of the characteristics and properties of the newly discovered particle such as couplings to SM particles, spin and CP-quantum numbers etc., Comment: 404 pages, 139 figures, 162 tables. Updated for author names and minor corrections in the figures and tables. Working Group web page: https://twiki.cern.ch/twiki/bin/view/LHCPhysics/CrossSections
Published: 2013
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16. Handbook of LHC Higgs Cross Sections: 2. Differential Distributions

Author: LHC Higgs Cross Section Working Group, Dittmaier, S., Mariotti, C., Passarino, G., Tanaka, R., Alekhin, S., Alwall, J., Bagnaschi, E. A., Banfi, A., Blumlein, J., Bolognesi, S., Chanon, N., Cheng, T., Cieri, L., Cooper-Sarkar, A. M., Cutajar, M., Dawson, S., Davies, G., De Filippis, N., Degrassi, G., Denner, A., D'Enterria, D., Diglio, S., Di Micco, B., Di Nardo, R., Ellis, R. K., Farilla, A., Farrington, S., Felcini, M., Ferrera, G., Flechl, M., de Florian, D., Forte, S., Ganjour, S., Garzelli, M. V., Gascon-Shotkin, S., Glazov, S., Goria, S., Grazzini, M., Guillet, J. -Ph., Hackstein, C., Hamilton, K., Harlander, R., Hauru, M., Heinemeyer, S., Hoche, S., Huston, J., Jackson, C., Jimenez-Delgado, P., Jorgensen, M. D., Kado, M., Kallweit, S., Kardos, A., Kauer, N., Kim, H., Kovac, M., Kramer, M., Krauss, F., Kuo, C. -M., Lehti, S., Li, Q., Lorenzo, N., Maltoni, F., Mellado, B., Moch, S. O., Muck, A., Muhlleitner, M., Nadolsky, P., Nason, P., Neu, C., Nikitenko, A., Oleari, C., Olsen, J., Palmer, S., Paganis, S., Papadopoulos, C. G., Petersen, T . C., Petriello, F., Petrucci, F., Piacquadio, G., Pilon, E., Potter, C. T., Price, J., Puljak, I., Quayle, W., Radescu, V., Rebuzzi, D., Reina, L., Rojo, J., Rosco, D., Salam, G. P., Sapronov, A., Schaarschmidt, J., Schonherr, M., Schumacher, M., Siegert, F., Slavich, P., Spira, M., Stewart, I. W., Stirling, W. J., Stockli, F., Sturm, C., Tackmann, F. J., Thorne, R. S., Tommasini, D., Torrielli, P., Tramontano, F., Trocsanyi, Z., Ubiali, M., Uccirati, S., Acosta, M. Vazquez, Vickey, T., Vicini, A., Waalewijn, W. J., Wackeroth, D., Warsinsky, M., Weber, M., Wiesemann, M., Weiglein, G., Yu, J., and Zanderighi, G.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract: This Report summarises the results of the second year's activities of the LHC Higgs Cross Section Working Group. The main goal of the working group was to present the state of the art of Higgs Physics at the LHC, integrating all new results that have appeared in the last few years. The first working group report Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables (CERN-2011-002) focuses on predictions (central values and errors) for total Higgs production cross sections and Higgs branching ratios in the Standard Model and its minimal supersymmetric extension, covering also related issues such as Monte Carlo generators, parton distribution functions, and pseudo-observables. This second Report represents the next natural step towards realistic predictions upon providing results on cross sections with benchmark cuts, differential distributions, details of specific decay channels, and further recent developments., Comment: 275 pages, 136 figures, to be submitted to CERN Report. Working Group web page: https://twiki.cern.ch/twiki/bin/view/LHCPhysics/CrossSections
Published: 2012
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17. Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM

Author: Bagnaschi, E., Degrassi, G., Slavich, P., and Vicini, A.
Subjects: High Energy Physics - Phenomenology
Abstract: We consider the gluon fusion production cross section of a scalar Higgs boson at NLO QCD in the SM and in the MSSM. We implement the calculation in the POWHEG approach, and match the NLO-QCD results with the PYTHIA and HERWIG QCD parton showers. We discuss a few representative scenarios in the SM and MSSM parameter spaces, with emphasis on the fermion and squark mass effects on the Higgs boson distributions., Comment: 27 pages, 36 eps figures; v2: 2 eps figures added, section 3.2 expanded, version published in JHEP
Published: 2011
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18. Higgs-mass predictions in the MSSM and beyond

Author: Slavich, P., Heinemeyer, S., Bagnaschi, E., Bahl, H., Goodsell, M., Haber, H. E., Hahn, T., Harlander, R., Hollik, W., Lee, G., Mühlleitner, M., Paßehr, S., Rzehak, H., Stöckinger, D., Voigt, A., Wagner, C. E. M., Weiglein, G., Allanach, B. C., Biekötter, T., Borowka, S., Braathen, J., Carena, M., Dao, T. N., Degrassi, G., Domingo, F., Drechsel, P., Ellwanger, U., Gabelmann, M., Gröber, R., Klappert, J., Kwasnitza, T., Meuser, D., Mihaila, L., Murphy, N., Nickel, K., Porod, W., Rojas, E. A. Reyes, Sobolev, I., and Staub, F.
Published: 2021
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19. Supersymmetric models in light of improved Higgs mass calculations

Author: Bagnaschi, E., Bahl, H., Ellis, J., Evans, J. L., Hahn, T., Heinemeyer, S., Hollik, W., Olive, K. A., Paßehr, S., Rzehak, H., Sobolev, I. V., Weiglein, G., and Zheng, J.
Published: 2019
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20. Likelihood analysis of the minimal AMSB model

Author: Bagnaschi, E., Borsato, M., Sakurai, K., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., Costa, J. C., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Isidori, G., Lucio, M., Luo, F., Santos, D. Martínez, Olive, K. A., Richards, A., and Weiglein, G.
Published: 2017
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21. Likelihood analysis of supersymmetric SU(5) GUTs

Author: Bagnaschi, E., Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Isidori, G., Lucio, M., Martínez Santos, D., Olive, K. A., Richards, A., de Vries, K. J., and Weiglein, G.
Published: 2017
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22. Likelihood analysis of the pMSSM11 in light of LHC 13-TeV data

Author: Bagnaschi, E., Sakurai, K., Borsato, M., Buchmueller, O., Citron, M., Costa, J. C., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Lucio, M., Martínez Santos, D., Olive, K. A., Richards, A., Spanos, V. C., Suárez Fernández, I., and Weiglein, G.
Published: 2018
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23. Likelihood analysis of the sub-GUT MSSM in light of LHC 13-TeV data

Author: Costa, J. C., Bagnaschi, E., Sakurai, K., Borsato, M., Buchmueller, O., Citron, M., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Lucio, M., Santos, D. Martínez, Olive, K. A., Richards, A., and Weiglein, G.
Published: 2018
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24. Vacuum stability and supersymmetry at high scales with two Higgs doublets

Author: Bagnaschi, E., Brümmer, F., Buchmüller, W., Voigt, A., and Weiglein, G.
Published: 2016
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25. Resummation ambiguities in the Higgs transverse-momentum spectrum in the Standard Model and beyond

Author: Bagnaschi, E., Harlander, R. V., Mantler, H., Vicini, A., and Wiesemann, M.
Published: 2016
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26. The Higgs transverse momentum distribution in gluon fusion as a multiscale problem

Author: Bagnaschi, E. and Vicini, A.
Published: 2016
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27. Interdependence of the new 'MUON G-2' result and the W-boson mass

Author: Bagnaschi, E., Chakraborti, M., Heinemeyer, S., Saha, I., and Weiglein, G.
Subjects: Planck, electroweak interaction: precision measurement, neutralino: mass, Physics and Astronomy (miscellaneous), chargino: mass, FOS: Physical sciences, chargino, GeV, W: mass: measured, ILC Coll, Brookhaven Lab, mass [smuon], High Energy Physics - Phenomenology (hep-ph), neutralino, smuon: mass, magnetic moment [muon], precision measurement [electroweak interaction], ddc:530, sparticle, Engineering (miscellaneous), mass [chargino], Particle Physics - Phenomenology, muon: magnetic moment, muon, magnetic moment, electroweak interaction, new physics, High Energy Physics::Phenomenology, smuon, minimal supersymmetric standard model, slepton, hep-ph, High Energy Physics - Phenomenology, magnetic moment: anomaly, High Energy Physics::Experiment, supersymmetry, anomaly [magnetic moment], mass [neutralino], mass: measured [W], dark matter, density, experimental results
Abstract: The European physical journal / C 82(5), 474 (2022). doi:10.1140/epjc/s10052-022-10402-0, The electroweak (EW) sector of the Minimal Supersymmetric extension of the Standard Model (MSSM), assuming the lightest neutralino as Dark Matter (DM) candidate, can account for a variety of experimental results. This includes the DM direct detection limits, the searches for EW superpartners at the LHC, and in particular the discrepancy between the experimental result for the anomalous magnetic moment of the muon, $(g-2)_\mu $, and its Standard Model (SM) prediction. The new “MUON G-2” result, combined with the older BNL result on $(g-2)_\mu $, yields a deviation from the SM prediction of $\Delta a_\mu = ({25.1}\pm {5.9}) \times 10^{-10}$, corresponding to ${4.2}\,\sigma $. Using this updated bound, together with the other constraints, we calculate the MSSM prediction for the mass of the W boson, $M_W$. We assume contributions only from the EW sector, i.e. the colored sector of the MSSM, in agreement with the search limits, is taken to be heavy. We investigate five scenarios, distinguished by the mechanisms which yield a relic DM density in agreement with the latest Planck bounds. We find that with the new $(g-2)_\mu $ result taken into account and depending on the scenario, values up to are reached. The largest values are obtained for wino DM and in the case of slepton co-annihilation, where points well within the $1\,\sigma $ range of the experimental world average of $M_W^{\mathrm {exp}}= 80.379 \pm 0.012 \,\, \mathrm {GeV}$ are reached, whereas the SM predicts a too small value of $M_W^{\mathrm {SM}}= 80.353 \,\, \mathrm {GeV}$. We analyze the dependence of $M_W^{\mathrm {MSSM}}$ on the relevant masses of the EW superpartners and demonstrate that future $M_W$ measurements, e.g. at the ILC, could distinguish between various MSSM realizations. Sizable contributions to $M_W^{\mathrm {MSSM}}$ are associated with a relatively light $\tilde{\chi }_{1}^0$, accompanied by either a light chargino or a light smuon, setting interesting targets for future collider searches., Published by Springer, Heidelberg
Published: 2022
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28. Simple and statistically sound recommendations for analysing physical theories

Author: AbdusSalam, SS, Agocs, FJ, Allanach, BC, Athron, P, Balazs, C, Bagnaschi, E, Bechtle, P, Buchmueller, O, Beniwal, A, Bhom, J, Bloor, S, Bringmann, T, Buckley, A, Butter, A, Camargo-Molina, JE, Chrzaszcz, M, Conrad, J, Cornell, JM, Danninger, M, de Blas, J, De Roeck, A, Desch, K, Dolan, M, Dreiner, H, Eberhardt, O, Ellis, J, Ben, F, Fedele, M, Flaecher, H, Fowlie, A, Gonzalo, TE, Grace, P, Hamer, M, Handley, W, Harz, J, Heinemeyer, S, Hoof, S, Hotinli, S, Jackson, P, Kahlhoefer, F, Kowalska, K, Kraemer, M, Kvellestad, A, Martinez, ML, Mahmoudi, F, Martinez Santos, D, Martinez, GD, Mishima, S, Olive, K, Paul, A, Prim, MT, Porod, W, Raklev, A, Renk, JJ, Rogan, C, Roszkowski, L, de Austri, RR, Sakurai, K, Scaffidi, A, Scott, P, Sessolo, EM, Stefaniak, T, Stoecker, P, Su, W, Trojanowski, S, Trotta, R, Tsai, Y-LS, Van den Abeele, J, Valli, M, Vincent, AC, Weiglein, G, White, M, Wienemann, P, Wu, L, Zhang, Y, AbdusSalam, SS, Agocs, FJ, Allanach, BC, Athron, P, Balazs, C, Bagnaschi, E, Bechtle, P, Buchmueller, O, Beniwal, A, Bhom, J, Bloor, S, Bringmann, T, Buckley, A, Butter, A, Camargo-Molina, JE, Chrzaszcz, M, Conrad, J, Cornell, JM, Danninger, M, de Blas, J, De Roeck, A, Desch, K, Dolan, M, Dreiner, H, Eberhardt, O, Ellis, J, Ben, F, Fedele, M, Flaecher, H, Fowlie, A, Gonzalo, TE, Grace, P, Hamer, M, Handley, W, Harz, J, Heinemeyer, S, Hoof, S, Hotinli, S, Jackson, P, Kahlhoefer, F, Kowalska, K, Kraemer, M, Kvellestad, A, Martinez, ML, Mahmoudi, F, Martinez Santos, D, Martinez, GD, Mishima, S, Olive, K, Paul, A, Prim, MT, Porod, W, Raklev, A, Renk, JJ, Rogan, C, Roszkowski, L, de Austri, RR, Sakurai, K, Scaffidi, A, Scott, P, Sessolo, EM, Stefaniak, T, Stoecker, P, Su, W, Trojanowski, S, Trotta, R, Tsai, Y-LS, Van den Abeele, J, Valli, M, Vincent, AC, Weiglein, G, White, M, Wienemann, P, Wu, L, and Zhang, Y
Abstract: 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. These issues are often sidestepped with statistically unsound ad hoc methods, involving intersection of parameter intervals estimated by multiple experiments, and random or grid sampling of model parameters. Whilst these methods are easy to apply, they exhibit pathologies even in low-dimensional parameter spaces, and quickly become problematic to use and interpret in higher dimensions. In this article we give clear guidance for going beyond these procedures, suggesting where possible simple methods for performing statistically sound inference, and recommendations of readily-available software tools and standards that can assist in doing so. Our aim is to provide any physicists lacking comprehensive statistical training with recommendations for reaching correct scientific conclusions, with only a modest increase in analysis burden. Our examples can be reproduced with the code publicly available at Zenodo.
Published: 2022

29. Unveiling hidden physics at the LHC

Author: European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), European Research Council, Fischer, Oliver, Mellado, Bruce, Antusch, Stefan, Bagnaschi, E., Banerjee, S., Beck, Geoff, Belfatto, Benedetta, Bellis, Matthew, Berezhiani, Zurab, Blanke, M., Capdevila, Bernat, Cheung, Kingman, Crivellin, A., Desai, N., Dev, Bhupal, Godbole, R.M., Han, T., Harris, Philip, Hoferichter, M., Kirk, Matthew, Kulkarni, Suchita, Lange, C., Lassila-Perini, Kati, Liu, Zhen, Mahmoudi, Farvah, Manzari, C.A., Marzocca, David, Mukhopadhyaya, Biswarup, Pich, Antonio, Ruan, Xifeng, Schnell, Luc, Thaler, Jesse, Westhoff, S., European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), European Research Council, Fischer, Oliver, Mellado, Bruce, Antusch, Stefan, Bagnaschi, E., Banerjee, S., Beck, Geoff, Belfatto, Benedetta, Bellis, Matthew, Berezhiani, Zurab, Blanke, M., Capdevila, Bernat, Cheung, Kingman, Crivellin, A., Desai, N., Dev, Bhupal, Godbole, R.M., Han, T., Harris, Philip, Hoferichter, M., Kirk, Matthew, Kulkarni, Suchita, Lange, C., Lassila-Perini, Kati, Liu, Zhen, Mahmoudi, Farvah, Manzari, C.A., Marzocca, David, Mukhopadhyaya, Biswarup, Pich, Antonio, Ruan, Xifeng, Schnell, Luc, Thaler, Jesse, and Westhoff, S.
Abstract: The field of particle physics is at the crossroads. The discovery of a Higgs-like boson completed the Standard Model (SM), but the lacking observation of convincing resonances Beyond the SM (BSM) offers no guidance for the future of particle physics. On the other hand, the motivation for New Physics has not diminished and is, in fact, reinforced by several striking anomalous results in many experiments. Here we summarise the status of the most significant anomalies, including the most recent results for the flavour anomalies, the multi-lepton anomalies at the LHC, the Higgs-like excess at around 96 GeV, and anomalies in neutrino physics, astrophysics, cosmology, and cosmic rays. While the LHC promises up to 4 ab of integrated luminosity and far-reaching physics programmes to unveil BSM physics, we consider the possibility that the latter could be tested with present data, but that systemic shortcomings of the experiments and their search strategies may preclude their discovery for several reasons, including: final states consisting in soft particles only, associated production processes, QCD-like final states, close-by SM resonances, and SUSY scenarios where no missing energy is produced. New search strategies could help to unveil the hidden BSM signatures, devised by making use of the CERN open data as a new testing ground. We discuss the CERN open data with its policies, challenges, and potential usefulness for the community. We showcase the example of the CMS collaboration, which is the only collaboration regularly releasing some of its data. We find it important to stress that individuals using public data for their own research does not imply competition with experimental efforts, but rather provides unique opportunities to give guidance for further BSM searches by the collaborations. Wide access to open data is paramount to fully exploit the LHCs potential.
Published: 2022

30. SMEFT analysis of mW

Author: Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Bagnaschi, E., Ellis, John, Madigan, Maeve, Mimasu, Ken, Sanz, Verónica, You, Tevong, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Bagnaschi, E., Ellis, John, Madigan, Maeve, Mimasu, Ken, Sanz, Verónica, and You, Tevong
Abstract: We use the Fitmaker tool to incorporate the recent CDF measurement of m in a global fit to electroweak, Higgs, and diboson data in the Standard Model Effective Field Theory (SMEFT) including dimension-6 operators at linear order. We find that including any one of the SMEFT operators O, O, O or OHℓ(3) with a non-zero coefficient could provide a better fit than the Standard Model, with the strongest pull for O and no tension with other electroweak precision data. We then analyse which tree-level single-field extensions of the Standard Model could generate such operator coefficients with the appropriate sign, and discuss the masses and couplings of these fields that best fit the CDF measurement and other data. In particular, the global fit favours either a singlet Z′ vector boson, a scalar electroweak triplet with zero hypercharge, or a vector electroweak triplet with unit hypercharge, followed by a singlet heavy neutral lepton, all with masses in the multi-TeV range for unit coupling.
Published: 2022

31. Global analysis of dark matter simplified models with leptophobic spin-one mediators using MasterCode

Author: Bagnaschi, E, Costa, J, Sakurai, K, Borsato, M, Buchmueller, O, De Roeck, A, Dolan, M, Ellis, J, Flacher, H, Hahn, K, Heinemeyer, S, Lucio, M, Santos, D, Olive, K, Trifa, S, Weiglein, G, Bagnaschi E, Costa JC, Sakurai K, Borsato M, Buchmueller O, De Roeck A, Dolan MJ, Ellis JR, Flacher H, Hahn K, Heinemeyer S, Lucio M, Santos DM, Olive KA, Trifa S, Weiglein G, Bagnaschi, E, Costa, J, Sakurai, K, Borsato, M, Buchmueller, O, De Roeck, A, Dolan, M, Ellis, J, Flacher, H, Hahn, K, Heinemeyer, S, Lucio, M, Santos, D, Olive, K, Trifa, S, Weiglein, G, Bagnaschi E, Costa JC, Sakurai K, Borsato M, Buchmueller O, De Roeck A, Dolan MJ, Ellis JR, Flacher H, Hahn K, Heinemeyer S, Lucio M, Santos DM, Olive KA, Trifa S, and Weiglein G
Abstract: We report the results of a global analysis of dark matter simplified models (DMSMs) with leptophobic mediator particles of spin one, considering the cases of both vector and axial-vector interactions with dark matter (DM) particles and quarks. We require the DMSMs to provide all the cosmological DM density indicated by Planck and other observations, and we impose the upper limits on spin-independent and -dependent scattering from direct DM search experiments. We also impose all relevant LHC constraints from searches for monojet events and measurements of the dijet mass spectrum. We model the likelihood functions for all the constraints and combine them within the MasterCode framework, and probe the full DMSM parameter spaces by scanning over the mediator and DM masses and couplings, not fixing any of the model parameters. We find, in general, two allowed regions of the parameter spaces: one in which the mediator couplings to Standard Model (SM) and DM particles may be comparable to those in the SM and the cosmological DM density is reached via resonant annihilation, and one in which the mediator couplings to quarks are ≲10-3 and DM annihilation is non-resonant. We find that the DM and mediator masses may well lie within the ranges accessible to LHC experiments. We also present predictions for spin-independent and -dependent DM scattering, and present specific results for ranges of the DM couplings that may be favoured in ultraviolet completions of the DMSMs.
Published: 2019

32. Higgs-mass predictions in the MSSM and beyond

Author: SCOAP, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Slavich, Pietro, Heinemeyer, Sven, Bagnaschi, E., Bahl, Henning, Goodsell, M., Haber, Howard E., Hahn, T., Harlander, R., Hollik, W., Lee, G., Mühlleitner, M., Paßehr, S., Rzehak, Heidi, Stöckinger, D., Voigt, A., Wagner, Carlos E. M., Weiglein, G., Allanach, B. C., Biekötter, Thomas, Borowka, S., Braathen, J., Carena, Marcela, Dao, T. N., Degrassi, G., Domingo, Florian, Drechsel, P., Ellwanger, U., Gabelmann, M., Gröber, R., Klappert, J., Kwasnitza, T., Meuser, D., Mihaila, L., Murphy, N., Nickel, K., Porod, W., Reyes Rojas, E. A., Sobolev, I. V., Staub, F., SCOAP, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Slavich, Pietro, Heinemeyer, Sven, Bagnaschi, E., Bahl, Henning, Goodsell, M., Haber, Howard E., Hahn, T., Harlander, R., Hollik, W., Lee, G., Mühlleitner, M., Paßehr, S., Rzehak, Heidi, Stöckinger, D., Voigt, A., Wagner, Carlos E. M., Weiglein, G., Allanach, B. C., Biekötter, Thomas, Borowka, S., Braathen, J., Carena, Marcela, Dao, T. N., Degrassi, G., Domingo, Florian, Drechsel, P., Ellwanger, U., Gabelmann, M., Gröber, R., Klappert, J., Kwasnitza, T., Meuser, D., Mihaila, L., Murphy, N., Nickel, K., Porod, W., Reyes Rojas, E. A., Sobolev, I. V., and Staub, F.
Abstract: Predictions for the Higgs masses are a distinctive feature of supersymmetric extensions of the Standard Model, where they play a crucial role in constraining the parameter space. The discovery of a Higgs boson and the remarkably precise measurement of its mass at the LHC have spurred new efforts aimed at improving the accuracy of the theoretical predictions for the Higgs masses in supersymmetric models. The “Precision SUSY Higgs Mass Calculation Initiative” (KUTS) was launched in 2014 to provide a forum for discussions between the different groups involved in these efforts. This report aims to present a comprehensive overview of the current status of Higgs-mass calculations in supersymmetric models, to document the many advances that were achieved in recent years and were discussed during the KUTS meetings, and to outline the prospects for future improvements in these calculations.
Published: 2021

33. Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM

Author: Bagnaschi, E., Degrassi, G., Slavich, P., and Vicini, A.
Published: 2012
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34. Reinterpretation of LHC results for new physics: Status and recommendations after run 2

Author: Abdallah, W, AbdusSalam, S, Ahmadov, A, Ahriche, A, Alguero, G, Allanach, BC, Araz, JY, Arbey, A, Arina, C, Athron, P, Bagnaschi, E, Bai, Y, Baker, MJ, Balazs, C, Barducci, D, Bechtle, P, Bharucha, A, Buckley, A, Butterworth, J, Cai, H, Campagnari, C, Cesarotti, C, Chrzaszcz, M, Coccaro, A, Conte, E, Cornell, JM, Corpe, LD, Danninger, M, Darmé, L, Deandrea, A, Desai, N, Dillon, B, Doglioni, C, Dolan, MJ, Dutta, J, Ellis, JR, Ellis, S, Feickert, M, Fernandez, N, Fichet, S, Flacke, T, Fuks, B, Geiser, A, Genest, MH, Ghalsasi, A, Gonzalo, T, Goodsell, M, Gori, S, Gras, P, Greljo, A, Guadagnoli, D, Heinemeyer, S, Heinrich, LA, Heisig, J, Hong, DK, Hryn'ova, T, Huitu, K, Ilten, P, Ismail, A, Jueid, A, Kahlhoefer, F, Kalinowski, J, Kamenik, JF, Kar, D, Kats, Y, Khosa, CK, Khoze, V, Klingl, T, Ko, P, Kong, K, Kotlarski, W, Krämer, M, Kraml, S, Kulkarni, S, Kvellestad, A, Lange, C, Lassila-Perini, K, Lee, SJ, Lessa, A, Liu, Z, Iglesias, LL, Lorenz, JM, MacDonell, D, Mahmoudi, F, Mamuzic, J, Marini, AC, Markowitz, P, del Arbol, PMR, Miller, D, Mitsou, VA, Moretti, S, Nardecchia, M, Neshatpour, S, Nhung, DT, Osland, P, Owen, PH, Panella, O, Pankov, A, Park, M, Porod, W, Allanach, Benjamin [0000-0003-4635-6830], and Apollo - University of Cambridge Repository
Subjects: hep-ex, hep-ph
Abstract: 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. We also provide a brief description of existing software reinterpretation frameworks and recent global analyses of new physics that make use of the current data.
Published: 2020
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35. Higgs boson potential at colliders: status and perspectives

Author: Di Micco, B., Gouzevitch, M., Mazzitelli, J., Vernieri, C., Alison, J., Androsov, K., Baglio, J., Bagnaschi, E., Banerjee, S., Basler, P., Bethani, A., Betti, A., Blanke, M., Blondel, A., Borgonovi, L., Brost, E., Bryant, P., Buchalla, G., Burch, T. J., Cairo, V. M. M., Campanario, F., Carena, M., Carvalho, A., Chernyavskaya, N., D'Amico, V., Dawson, S., De Filippis, N., Di Luzio, L., Di Vita, S., Dillon, B., Englert, C., Ferrari, A., Fontanesi, E., Fox, H., Gallinaro, M., Giardino, P. P., Glaus, S., Goertz, F., Gori, S., Gröber, R., Grojean, C., Ibarra, D. F. Guerrero, Gupta, R., Haisch, U., Heinrich, G., Huang, P., Janot, P., Jones, S. P., Kagan, M. A., Kast, S., Kerner, M., Kim, J. H., Kong, K., Kozaczuk, J., Krauss, F., Kuttimalai, S., Lee, H. M., Leney, K., Lewis, I. M., Liebler, S., Liu, Z., Logan, H. E., Long, A., Maltoni, F., Manzoni, S., Mastrolorenzo, L., Matchev, K., Micheli, F., Mühlleitner, M., Neubauer, M. S., Ortona, G., Osherson, M., Pagani, D., Panico, G., Papaefstathiou, A., Park, M., Peskin, M. E., Quevillon, J., Riembau, M., Robens, T., Roloff, P., Rzehak, H., Schaarschmidt, J., Schnoor, U., Scyboz, L., Selvaggi, M., Shah, N. R., Shivaji, A., Shrestha, S., Sinha, K., Spannowsky, M., Spira, M., Stefaniak, T., Streicher, J., Sullivan, M., Swiatlowski, M., de Lima, R. Teixeira, Thomson, J., Tian, J., Vantalon, T., Veelken, C., Vickey, T., Vryonidou, E., Wells, J., Westhoff, S., Zhao, X., Zurita, J., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)
Subjects: 65D05, interference: effect, Physics of Elementary Particles and Fields, Physics beyond the Standard Model, General Physics and Astronomy, boson: production, CEPC, CLIC, EWSBMethodist, FCC, Higgs boson, Higgs potential, ILC, LHC, High Energy Physics - Phenomenology, High Energy Physics - Experiment, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), effective field theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Effective field theory, Fermilab, Monte Carlo, Boson, Large Hadron Collider, new physics, Physics, minimal supersymmetric standard model, Higgs particle: doublet: 2, lcsh:QC1-999, Variety (cybernetics), CERN LHC Coll, operator: higher-dimensional, Higgs particle: pair production, Particle physics, FOS: Physical sciences, dark matter, operator: dimension: 6, 0103 physical sciences, ddc:530, numerical calculations, 010306 general physics, 65D17, 41A05, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Higgs particle: boosted particle, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 41A10, High Energy Physics::Experiment, supersymmetry, lcsh:Physics
Abstract: This document summarises the current theoretical and experimental status of the di-Higgs boson production searches, and of the direct and indirect constraints on the Higgs boson self-coupling, with the wish to serve as a useful guide for the next years. The document discusses the theoretical status, including state-of-the-art predictions for di-Higgs cross sections, developments on the effective field theory approach, and studies on specific new physics scenarios that can show up in the di-Higgs final state. The status of di-Higgs searches and the direct and indirect constraints on the Higgs self-coupling at the LHC are presented, with an overview of the relevant experimental techniques, and covering all the variety of relevant signatures. Finally, the capabilities of future colliders in determining the Higgs self-coupling are addressed, comparing the projected precision that can be obtained in such facilities. The work has started as the proceedings of the Di-Higgs workshop at Colliders, held at Fermilab from the 4th to the 9th of September 2018, but it went beyond the topics discussed at that workshop and included further developments., Comment: 279 pages, 136 figures, document produced partially as outcome of the conference Double Higgs Production at Colliders - Fermilab - Chicago (US) 4 - 9 September 2018. Submitted to Review in Physics. The editors can be contacted at the following address: hh-2018-paper-editors@cern.ch
Published: 2020

36. Higgs Boson Pair Production at Colliders: Status and Perspectives

Author: Di Micco, B., Gouzevitch, M., Mazzitelli, J., Vernieri, C., Alison, J., Androsov, K., Baglio, J., Bagnaschi, E., Banerjee, S., Basler, P., Bethani, A., Betti, A., Blanke, M., Blondel, A., Borgonovi, L., Brost, E., Bryant, P., Buchalla, G., Burch, T. J., Cairo, V. M. M., Campanario, F., Carena, M., Carvalho, A., Chernyavskaya, N., D'Amico, V., Dawson, S., De Filippis, N., Di Luzio, L., Di Vita, S., Dillon, B., Englert, C., Ferrari, A., Fontanesi, E., Fox, H., Gallinaro, M., Giardino, P. P., Glaus, S., Goertz, F., Gori, S., Gröber, R., Grojean, C., Guerrero Ibarra, D. F., Gupta, R., Haisch, U., Heinrich, G., Huang, P., Janot, P., Jones, S. P., Kagan, M. A., Kast, S., Kerner, M., Kim, J. H., Kong, K., Kozaczuk, J., Krauss, F., Kuttimalai, S., Lee, H. M., Leney, K., Lewis, I. M., Liebler, S., Liu, Z., Logan, H. E., Long, A., Maltoni, F., Manzoni, S., Mastrolorenzo, L., Matchev, K., Micheli, F., Mühlleitner, M., Neubauer, M. S., Ortona, G., Osherson, M., Pagani, D., Panico, G., Papaefstathiou, A., Park, M., Peskin, M. E., Quevillon, J., Riembau, M., Robens, T., Roloff, P., Rzehak, H., Schaarschmidt, J., Schnoor, U., Scyboz, L., Selvaggi, M., Shah, N. R., Shivaji, A., Shrestha, S., Sinha, K., Spannowsky, M., Spira, M., Stefaniak, T., Streicher, J., Sullivan, M., Swiatlowski, M., Teixeira De Lima, R., Thomson, J., Tian, J., Vantalon, T., Veelken, C., Vickey, T., Vryonidou, E., Wells, J., Westhoff, S., Zhao, X., Zurita, J., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)
Subjects: interference: effect, boosted particle [Higgs particle], doublet: 2 [Higgs particle], boson: production, dark matter, production [boson], effect [interference], effective field theory, operator: dimension: 6, pair production [Higgs particle], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], numerical calculations, Monte Carlo, Particle Physics - Phenomenology, hep-ex, new physics, High Energy Physics::Phenomenology, Higgs particle: doublet: 2, minimal supersymmetric standard model, hep-ph, Higgs particle: boosted particle, CERN LHC Coll, operator: higher-dimensional, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], higher-dimensional [operator], High Energy Physics::Experiment, Higgs particle: pair production, dimension: 6 [operator], supersymmetry, Particle Physics - Experiment
Abstract: Double Higgs Production at Colliders, Batavia, United States, 4 Sep 2018 - 9 Sep 2019; 279 pp. (2020)., This document summarises the current theoretical and experimental status of the di-Higgs boson production searches, and of the direct and indirect constraints on the Higgs boson self-coupling, with the wish to serve as a useful guide for the next years. The document discusses the theoretical status, including state-of-the-art predictions for di-Higgs cross sections, developments on the effective field theory approach, and studies on specific new physics scenarios that can show up in the di-Higgs final state. The status of di-Higgs searches and the direct and indirect constraints on the Higgs self-coupling at the LHC are presented, with an overview of the relevant experimental techniques, and covering all the variety of relevant signatures. Finally, the capabilities of future colliders in determining the Higgs self-coupling are addressed, comparing the projected precision that can be obtained in such facilities. The work has started as the proceedings of the Di-Higgs workshop at Colliders, held at Fermilab from the 4th to the 9th of September 2018, but it went beyond the topics discussed at that workshop and included further developments.
Published: 2020
Full Text: View/download PDF

37. Higgs boson potential at colliders: status and perspectives

Author: Micco, B. Di, Gouzevitch, M., Mazzitelli, J., Vernieri, C., Alison, J., Androsov, K., Baglio, J., Bagnaschi, E., Banerjee, S., Basler, P., Bethani, A., Betti, A., Blanke, M., Blondel, A., Borgonovi, L., Brost, E., Bryant, P., Buchalla, G., Burch, T. J., Cairo, V. M. M., Campanario, F., Carena, M., Carvalho, A., Chernyavskaya, N., D'Amico, V., Dawson, S., Filippis, N. De, Luzio, L. Di, Vita, S. Di, Dillon, B., Englert, C., Ferrari, A., Fontanesi, E., Fox, H., Gallinaro, M., Giardino, P. P., Glaus, S., Goertz, F., Gori, S., Gröber, R., Grojean, C., Ibarra, D. F. Guerrero, Gupta, R., Haisch, U., Heinrich, G., Huang, P., Janot, P., Jones, S. P., Kagan, M. A., Kast, S., Kerner, M., Kim, J. H., Kong, K., Kozaczuk, J., Krauss, F., Kuttimalai, S., Lee, H. M., Leney, K., Lewis, I. M., Liebler, S., Liu, Z., Logan, H. E., Long, A., Maltoni, F., Manzoni, S., Mastrolorenzo, L., Matchev, K., Micheli, F., Mühlleitner, M., Neubauer, M. S., Ortona, G., Osherson, M., Pagani, D., Panico, G., Papaefstathiou, A., Park, M., Peskin, M. E., Quevillon, J., Riembau, M., Robens, Tania, Roloff, P., Rzehak, H., Schaarschmidt, J., Schnoor, U., Scyboz, L., Selvaggi, M., Shah, N. R., Shivaji, A., Shrestha, S., Sinha, K., Spannowsky, M., Spira, M., Stefaniak, T., Streicher, J., Sullivan, M., Swiatlowski, M., Lima, R. Teixeira de, Thomson, J., Tian, J., Vantalon, T., Veelken, C., Vickey, T., Vryonidou, E., Wells, J., Westhoff, S., Zhao, X., and Zurita, J.
Subjects: Physics of Elementary Particles and Fields, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: This document summarises the current theoretical and experimental status of the di-Higgs boson production searches, and of the direct and indirect constraints on the Higgs boson self-coupling, with the wish to serve as a useful guide for the next years. The document discusses the theoretical status, including state-of-the-art predictions for di-Higgs cross sections, developments on the effective field theory approach, and studies on specific new physics scenarios that can show up in the di-Higgs final state. The status of di-Higgs searches and the direct and indirect constraints on the Higgs self-coupling at the LHC are presented, with an overview of the relevant experimental techniques, and covering all the variety of relevant signatures. Finally, the capabilities of future colliders in determining the Higgs self-coupling are addressed, comparing the projected precision that can be obtained in such facilities. The work has started as the proceedings of the Di-Higgs workshop at Colliders, held at Fermilab from the 4th to the 9th of September 2018, but it went beyond the topics discussed at that workshop and included further developments.
Published: 2019

38. MSSM Higgs boson searches at the LHC: benchmark scenarios for Run 2 and beyond

Author: Ministerio de Economía y Competitividad (España), Agencia Estatal de Investigación (España), European Commission, Agence Nationale de la Recherche (France), European Research Council, University of Chicago, Department of Energy (US), SCOAP, Bagnaschi, E., Bahl, Henning, Fuchs, Elina, Hahn, T., Heinemeyer, Sven, Liebler, Stefan, Patel, Shruti, Slavich, Pietro, Stefaniak, Tim, Wagner, Carlos E. M., Weiglein, G., Ministerio de Economía y Competitividad (España), Agencia Estatal de Investigación (España), European Commission, Agence Nationale de la Recherche (France), European Research Council, University of Chicago, Department of Energy (US), SCOAP, Bagnaschi, E., Bahl, Henning, Fuchs, Elina, Hahn, T., Heinemeyer, Sven, Liebler, Stefan, Patel, Shruti, Slavich, Pietro, Stefaniak, Tim, Wagner, Carlos E. M., and Weiglein, G.
Abstract: We propose six new benchmark scenarios for Higgs boson searches in the Minimal Supersymmetric Standard Model. Our calculations follow the recommendations of the LHC Higgs Cross Section Working Group, and benefit from recent developments in the predictions for the Higgs-boson masses and mixing. All of the proposed scenarios are compatible with the most recent results from Run 2 of the LHC. In particular, they feature a scalar with mass and couplings compatible with those of the observed Higgs boson, and a significant portion of their parameter space is allowed by the limits from the searches for SUSY particles and additional Higgs bosons. We define a scenario where all SUSY particles are relatively heavy, and two scenarios with light colorless SUSY particles (charginos, neutralinos and, in one case, staus). In addition, we present two scenarios featuring alignment without decoupling, realized with either the lighter or the heavier scalar being SM-like, and a scenario with CP violation.
Published: 2019

39. Global analysis of dark matter simplified models with leptophobic spin-one mediators using MasterCode

Author: Ministerio de Economía y Competitividad (España), European Commission, Bagnaschi, E., Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., Roeck, A. de, Dolan, M. J., Ellis, J. R., Flächer, H., Hahn, K., Heinemeyer, Sven, Lucio, M., Martínez Santos, D., Olive, K. A., Trifa, S., Weiglein, G., Ministerio de Economía y Competitividad (España), European Commission, Bagnaschi, E., Costa, J. C., Sakurai, K., Borsato, M., Buchmueller, O., Roeck, A. de, Dolan, M. J., Ellis, J. R., Flächer, H., Hahn, K., Heinemeyer, Sven, Lucio, M., Martínez Santos, D., Olive, K. A., Trifa, S., and Weiglein, G.
Abstract: We report the results of a global analysis of dark matter simplified models (DMSMs) with leptophobic mediator particles of spin one, considering the cases of both vector and axial-vector interactions with dark matter (DM) particles and quarks. We require the DMSMs to provide all the cosmological DM density indicated by Planck and other observations, and we impose the upper limits on spin-independent and -dependent scattering from direct DM search experiments. We also impose all relevant LHC constraints from searches for monojet events and measurements of the dijet mass spectrum. We model the likelihood functions for all the constraints and combine them within the MasterCode framework, and probe the full DMSM parameter spaces by scanning over the mediator and DM masses and couplings, not fixing any of the model parameters. We find, in general, two allowed regions of the parameter spaces: one in which the mediator couplings to Standard Model (SM) and DM particles may be comparable to those in the SM and the cosmological DM density is reached via resonant annihilation, and one in which the mediator couplings to quarks are ≲10-3 and DM annihilation is non-resonant. We find that the DM and mediator masses may well lie within the ranges accessible to LHC experiments. We also present predictions for spin-independent and -dependent DM scattering, and present specific results for ranges of the DM couplings that may be favoured in ultraviolet completions of the DMSMs.
Published: 2019

40. CERN Yellow Reports: Monographs, Vol 2 (2017): Handbook of LHC Higgs cross sections: 4. Deciphering the nature of the Higgs sector

Author: de Florian, D., Grojean, C., Maltoni, F., Mariotti, C., Nikitenko, A., Pieri, M., Savard, P., Schumacher, M., Tanaka, R., Aggleton, R., Ahmad, M., Allanach, B., Anastasiou, C., Astill, W., Badger, S., Badziak, M., Baglio, J., Bagnaschi, E., Ballestrero, A., Banfi, A., Barducci, D., Beckingham, M., Becot, C., Bélanger, G., Bellm, J., Belyaev, N., Bernlochner, F. U., Beskidt, C., Biekötter, A., Bishara, F., Bizon, W., Bomark, N. E., Bonvini, M., Borowka, S., Bortolotto, V., Boselli, S., Botella, F. J., Boughezal, R., Branco, G. C., Brehmer, J., Brenner, L., Bressler, S., Brivio, I., Broggio, A., Brun, H., Buchalla, G., Burgard, C. D., Calandri, A., Caminada, L., Caminal Armadans, R., Campanario, F., Campbell, J., Caola, F., Carloni Calame, C. M., Carrazza, S., Carvalho, A., Casolino, M., Cata, O., Celis, A., Cerutti, F., Chanon, N., Chen, M., Chen, X., Chokoufé Nejad, B., Christensen, N., Ciuchini, M., Contino, R., Corbett, T., Costa, R., Curtin, D., Dall'Osso, M., David, A., Dawson, S., de Blas, J., de Boer, W., de Castro Manzano, P., Degrande, C., Delgado, R. L., Demartin, F., Denner, A., Di Micco, B., Di Nardo, R., Dittmaier, S., Dobado, A., Dorigo, T., Dreyer, F. A., Dührssen, M., Duhr, C., Dulat, F., Ecker, K., Ellis, K., Ellwanger, U., Englert, C., Espriu, D., Falkowski, A., Fayard, L., Feger, R., Ferrera, G., Ferroglia, A., Fidanza, N., Figy, T., Flechl, M., Fontes, D., Forte, S., Francavilla, P., Franco, E., Frederix, R., Freitas, A., Freitas, F. F., Frensch, F., Frixione, S., Fuks, B., Furlan, E., Gadatsch, S., Gao, J., Gao, Y., Garzelli, M. V., Gehrmann, T., Gerosa, R., Ghezzi, M., Ghosh, D., Gieseke, S., Gillberg, D., Giudice, G. F., Glover, E. W. N., Goertz, F., Gonçalves, D., Gonzalez-Fraile, J., Gorbahn, M., Gori, S., Gottardo, C. A., Gouzevitch, M., Govoni, P., Gray, D., Grazzini, M., Greiner, N., Greljo, A., Grigo, J., Gritsan, A. V., Gröber, R., Guindon, S., Haber, H. E., Han, C., Han, T., Harlander, R., Harrendorf, M. A., Hartanto, H. B., Hays, C., Heinemeyer, S., Heinrich, G., Herrero, M., Herzog, F., Hespel, B., Hirschi, V., Hoeche, S., Honeywell, S., Huber, S. J., Hugonie, C., Huston, J., Ilnicka, A., Isidori, G., Jäger, B., Jaquier, M., Jones, S. P., Juste, A., Kallweit, S., Kaluza, A., Kardos, A., Karlberg, A., Kassabov, Z., Kauer, N., Kazakov, D. I., Kerner, M., Kilian, W., Kling, F., Köneke, K., Kogler, R., Konoplich, R., Kortner, S., Kraml, S., Krause, C., Krauss, F., Krawczyk, M., Kulesza, A., Kuttimalai, S., Lane, R., Lazopoulos, A., Lee, G., Lenzi, P., Lewis, I. M., Li, Y., Liebler, S., Lindert, J., Liu, X., Liu, Z., Llanes-Estrada, F. J., Logan, H. E., Lopez-Val, D., Low, I., Luisoni, G., Maierhöfer, P., Maina, E., Mansoulié, B., Mantler, H., Mantoani, M., Marini, A. C., Martinez Outschoorn, V. I., Marzani, S., Marzocca, D., Massironi, A., Mawatari, K., Mazzitelli, J., McCarn, A., Mellado, B., Melnikov, K., Menari, S. B., Merlo, L., Meyer, C., Milenovic, P., Mimasu, K., Mishima, S., Mistlberger, B., Moch, S. -O., Mohammadi, A., Monni, P. F., Montagna, G., Moreno Llácer, M., Moretti, N., Moretti, S., Motyka, L., Mück, A., Mühlleitner, M., Munir, S., Musella, P., Nadolsky, P., Napoletano, D., Nebot, M., Neu, C., Neubert, M., Nevzorov, R., Nicrosini, O., Nielsen, J., Nikolopoulos, K., No, J. M., O'Brien, C., Ohl, T., Oleari, C., Orimoto, T., Pagani, D., Pandini, C. E., Papaefstathiou, A., Papanastasiou, A. S., Passarino, G., Pecjak, B. D., Pelliccioni, M., Perez, G., Perrozzi, L., Petriello, F., Petrucciani, G., Pianori, E., Piccinini, F., Pierini, M., Pilkington, A., Plätzer, S., Plehn, T., Podskubka, R., Potter, C. T., Pozzorini, S., Prokofiev, K., Pukhov, A., Puljak, I., Queitsch-Maitland, M., Quevillon, J., Rathlev, D., Rauch, M., Re, E., Rebelo, M. N., Rebuzzi, D., Reina, L., Reuschle, C., Reuter, J., Riembau, M., Riva, F., Rizzi, A., Robens, T., Röntsch, R., Rojo, J., Romão, J. C., Rompotis, N., Roskes, J., Roth, R., Salam, G. P., Salerno, R., Sampaio, M. O. P., Santos, R., Sanz, V., Sanz-Cillero, J. J., Sargsyan, H., Sarica, U., Schichtel, P., Schlenk, J., Schmidt, T., Schmitt, C., Schönherr, M., Schubert, U., Schulze, M., Sekula, S., Sekulla, M., Shabalina, E., Shao, H. S., Shelton, J., Shepherd-Themistocleous, C. H., Shim, S. Y., Siegert, F., Signer, A., Silva, J. P., Silvestrini, L., Sjodahl, M., Slavich, P., Slawinska, M., Soffi, L., Spannowsky, M., Speckner, C., Sperka, D. M., Spira, M., Stål, O., Staub, F., Stebel, T., Stefaniak, T., Steinhauser, M., Stewart, I. W., Strassler, M. J., Streicher, J., Strom, D. M., Su, S., Sun, X., Tackmann, F. J., Tackmann, K., Teixeira, A. M., Teixeira de Lima, R., Theeuwes, V., Thorne, R., Tommasini, D., Torrielli, P., Tosi, M., Tramontano, F., Trócsányi, Z., Trott, M., Tsinikos, I., Ubiali, M., Vanlaer, P., Verkerke, W., Vicini, A., Viliani, L., Vryonidou, E., Wackeroth, D., Wagner, C. E. M., Wang, J., Wayand, S., Weiglein, G., Weiss, C., Wiesemann, M., Williams, C., Winter, J., Winterbottom, D., Wolf, R., Xiao, M., Yang, L. L., Yohay, R., Yuen, S. P. Y., Zanderighi, G., Zaro, M., Zeppenfeld, D., Ziegler, R., Zirke, T., Zupan, J., D. de Florian, C. Grojean, F. Maltoni, C. Mariotti, A. Nikitenko, M. Pieri, P. Savard, M. Schumacher, R. Tanaka, de Florian, D., Grojean, C., Maltoni, F., Mariotti, C., Nikitenko, A., Pieri, M., Savard, P., Schumacher, M., Tanaka, R., Aggleton, R., Ahmad, M., Allanach, B., Anastasiou, C., Astill, W., Badger, S., Badziak, M., Baglio, J., Bagnaschi, E., Ballestrero, A., Banfi, A., Barducci, D., Beckingham, M., Becot, C., Bélanger, G., Bellm, J., Belyaev, N., Bernlochner, F. U., Beskidt, C., Biekötter, A., Bishara, F., Bizon, W., Bomark, N. E., Bonvini, M., Borowka, S., Bortolotto, V., Boselli, S., Botella, F. J., Boughezal, R., Branco, G. C., Brehmer, J., Brenner, L., Bressler, S., Brivio, I., Broggio, A., Brun, H., Buchalla, G., Burgard, C. D., Calandri, A., Caminada, L., Caminal Armadans, R., Campanario, F., Campbell, J., Caola, F., Carloni Calame, C. M., Carrazza, S., Carvalho, A., Casolino, M., Cata, O., Celis, A., Cerutti, F., Chanon, N., Chen, M., Chen, X., Chokoufé Nejad, B., Christensen, N., Ciuchini, M., Contino, R., Corbett, T., Costa, R., Curtin, D., Dall'Osso, M., David, A., Dawson, S., de Blas, J., de Boer, W., de Castro Manzano, P., Degrande, C., Delgado, R. L., Demartin, F., Denner, A., Di Micco, B., Di Nardo, R., Dittmaier, S., Dobado, A., Dorigo, T., Dreyer, F. A., Dührssen, M., Duhr, C., Dulat, F., Ecker, K., Ellis, K., Ellwanger, U., Englert, C., Espriu, D., Falkowski, A., Fayard, L., Feger, R., Ferrera, G., Ferroglia, A., Fidanza, N., Figy, T., Flechl, M., Fontes, D., Forte, S., Francavilla, P., Franco, E., Frederix, R., Freitas, A., Freitas, F. F., Frensch, F., Frixione, S., Fuks, B., Furlan, E., Gadatsch, S., Gao, J., Gao, Y., Garzelli, M. V., Gehrmann, T., Gerosa, R., Ghezzi, M., Ghosh, D., Gieseke, S., Gillberg, D., Giudice, G. F., Glover, E. W. N., Goertz, F., Gonçalves, D., Gonzalez-Fraile, J., Gorbahn, M., Gori, S., Gottardo, C. A., Gouzevitch, M., Govoni, P., Gray, D., Grazzini, M., Greiner, N., Greljo, A., Grigo, J., Gritsan, A. V., Gröber, R., Guindon, S., Haber, H. E., Han, C., Han, T., Harlander, R., Harrendorf, M. A., Hartanto, H. B., Hays, C., Heinemeyer, S., Heinrich, G., Herrero, M., Herzog, F., Hespel, B., Hirschi, V., Hoeche, S., Honeywell, S., Huber, S. J., Hugonie, C., Huston, J., Ilnicka, A., Isidori, G., Jäger, B., Jaquier, M., Jones, S. P., Juste, A., Kallweit, S., Kaluza, A., Kardos, A., Karlberg, A., Kassabov, Z., Kauer, N., Kazakov, D. I., Kerner, M., Kilian, W., Kling, F., Köneke, K., Kogler, R., Konoplich, R., Kortner, S., Kraml, S., Krause, C., Krauss, F., Krawczyk, M., Kulesza, A., Kuttimalai, S., Lane, R., Lazopoulos, A., Lee, G., Lenzi, P., Lewis, I. M., Li, Y., Liebler, S., Lindert, J., Liu, X., Liu, Z., Llanes-Estrada, F. J., Logan, H. E., Lopez-Val, D., Low, I., Luisoni, G., Maierhöfer, P., Maina, E., Mansoulié, B., Mantler, H., Mantoani, M., Marini, A. C., Martinez Outschoorn, V. I., Marzani, S., Marzocca, D., Massironi, A., Mawatari, K., Mazzitelli, J., McCarn, A., Mellado, B., Melnikov, K., Menari, S. B., Merlo, L., Meyer, C., Milenovic, P., Mimasu, K., Mishima, S., Mistlberger, B., Moch, S.-O., Mohammadi, A., Monni, P. F., Montagna, G., Moreno Llácer, M., Moretti, N., Moretti, S., Motyka, L., Mück, A., Mühlleitner, M., Munir, S., Musella, P., Nadolsky, P., Napoletano, D., Nebot, M., Neu, C., Neubert, M., Nevzorov, R., Nicrosini, O., Nielsen, J., Nikolopoulos, K., No, J. M., O'Brien, C., Ohl, T., Oleari, C., Orimoto, T., Pagani, D., Pandini, C. E., Papaefstathiou, A., Papanastasiou, A. S., Passarino, G., Pecjak, B. D., Pelliccioni, M., Perez, G., Perrozzi, L., Petriello, F., Petrucciani, G., Pianori, E., Piccinini, F., Pierini, M., Pilkington, A., Plätzer, S., Plehn, T., Podskubka, R., Potter, C. T., Pozzorini, S., Prokofiev, K., Pukhov, A., Puljak, I., Queitsch-Maitland, M., Quevillon, J., Rathlev, D., Rauch, M., Re, E., Rebelo, M. N., Rebuzzi, D., Reina, L., Reuschle, C., Reuter, J., Riembau, M., Riva, F., Rizzi, A., Robens, T., Röntsch, R., Rojo, J., Romão, J. C., Rompotis, N., Roskes, J., Roth, R., Salam, G. P., Salerno, R., Sampaio, M. O. P., Santos, R., Sanz, V., Sanz-Cillero, J. J., Sargsyan, H., Sarica, U., Schichtel, P., Schlenk, J., Schmidt, T., Schmitt, C., Schönherr, M., Schubert, U., Schulze, M., Sekula, S., Sekulla, M., Shabalina, E., Shao, H. S., Shelton, J., Shepherd-Themistocleous, C. H., Shim, S. Y., Siegert, F., Signer, A., Silva, J. P., Silvestrini, L., Sjodahl, M., Slavich, P., Slawinska, M., Soffi, L., Spannowsky, M., Speckner, C., Sperka, D. M., Spira, M., Stål, O., Staub, F., Stebel, T., Stefaniak, T., Steinhauser, M., Stewart, I. W., Strassler, M. J., Streicher, J., Strom, D. M., Su, S., Sun, X., Tackmann, F. J., Tackmann, K., Teixeira, A. M., Teixeira de Lima, R., Theeuwes, V., Thorne, R., Tommasini, D., Torrielli, P., Tosi, M., Tramontano, F., Trócsányi, Z., Trott, M., Tsinikos, I., Ubiali, M., Vanlaer, P., Verkerke, W., Vicini, A., Viliani, L., Vryonidou, E., Wackeroth, D., Wagner, C. E. M., Wang, J., Wayand, S., Weiglein, G., Weiss, C., Wiesemann, M., Williams, C., Winter, J., Winterbottom, D., Wolf, R., Xiao, M., Yang, L. L., Yohay, R., Yuen, S. P. Y., Zanderighi, G., Zaro, M., Zeppenfeld, D., Ziegler, R., Zirke, T., and Zupan, J.
Subjects: Higgs, CERN, LHC
Abstract: Edited by D. de Florian, C. Grojean, F. Maltoni, C. Mariotti, A. Nikitenko, M. Pieri, P. Savard, M. Schumacher, R. Tanaka CERN-2017-002-M, ISBN (Print) 978–92–9083–442–7, ISBN (PDF) 978–92–9083–443–4
Published: 2017

41. Likelihood analysis of the pMSSM11 in light of LHC 13-TeV data

Author: Bagnaschi, E. Sakurai, K. Borsato, M. Buchmueller, O. Citron, M. Costa, J.C. De Roeck, A. Dolan, M.J. Ellis, J.R. Flächer, H. Heinemeyer, S. Lucio, M. Martínez Santos, D. Olive, K.A. Richards, A. Spanos, V.C. Suárez Fernández, I. Weiglein, G.
Abstract: We use MasterCode to perform a frequentist analysis of the constraints on a phenomenological MSSM model with 11 parameters, the pMSSM11, including constraints from ∼ 36 /fb of LHC data at 13 TeV and PICO, XENON1T and PandaX-II searches for dark matter scattering, as well as previous accelerator and astrophysical measurements, presenting fits both with and without the (g- 2) μ constraint. The pMSSM11 is specified by the following parameters: 3 gaugino masses M1 , 2 , 3, a common mass for the first-and second-generation squarks mq~ and a distinct third-generation squark mass mq~3, a common mass for the first-and second-generation sleptons mℓ~ and a distinct third-generation slepton mass mτ~, a common trilinear mixing parameter A, the Higgs mixing parameter μ, the pseudoscalar Higgs mass MA and tan β. In the fit including (g- 2) μ, a Bino-like χ~10 is preferred, whereas a Higgsino-like χ~10 is mildly favoured when the (g- 2) μ constraint is dropped. We identify the mechanisms that operate in different regions of the pMSSM11 parameter space to bring the relic density of the lightest neutralino, χ~10, into the range indicated by cosmological data. In the fit including (g- 2) μ, coannihilations with χ~20 and the Wino-like χ~1± or with nearly-degenerate first- and second-generation sleptons are active, whereas coannihilations with the χ~20 and the Higgsino-like χ~1± or with first- and second-generation squarks may be important when the (g- 2) μ constraint is dropped. In the two cases, we present χ2 functions in two-dimensional mass planes as well as their one-dimensional profile projections and best-fit spectra. Prospects remain for discovering strongly-interacting sparticles at the LHC, in both the scenarios with and without the (g- 2) μ constraint, as well as for discovering electroweakly-interacting sparticles at a future linear e+e- collider such as the ILC or CLIC. © 2018, The Author(s).
Published: 2018

42. Global analysis of dark matter simplified models with leptophobic spin-one mediators using MasterCode

Author: Bagnaschi, E., primary, Costa, J. C., additional, Sakurai, K., additional, Borsato, M., additional, Buchmueller, O., additional, De Roeck, A., additional, Dolan, M. J., additional, Ellis, J. R., additional, Flächer, H., additional, Hahn, K., additional, Heinemeyer, S., additional, Lucio, M., additional, Santos, D. Martínez, additional, Olive, K. A., additional, Trifa, S., additional, and Weiglein, G., additional
Published: 2019
Full Text: View/download PDF

43. Enabling rootless Linux Containers in multi-user environments: The udocker tool

Author: Gomes, Jorge, Bagnaschi, E., Campos, Isabel, David, Mario, Alves, Luis, Martins Careto, João António, Pina, Joâo, López García, Álvaro, Orviz, Pablo, Gomes, Jorge, Bagnaschi, E., Campos, Isabel, David, Mario, Alves, Luis, Martins Careto, João António, Pina, Joâo, López García, Álvaro, and Orviz, Pablo
Abstract: Containers are increasingly used as means to distribute and run Linux services and applications. In this paper we describe the architectural design and implementation of udocker, a tool which enables the user to execute Linux containers in user mode. We also present a few practical applications, using a range of scientific codes characterized by different requirements: from single core execution to MPI parallel execution and execution on GPGPUs.
Published: 2018

44. Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector

Author: de Florian, D., Grojean, C., Maltoni, F., Mariotti, C., Nikitenko, A., Pieri, M., Savard, P., Schumacher, M., R. Tanaka (eds. )., Aggleton, R., Ahmad, M., Allanach, B., Anastasiou, C., Astill, W., Badger, S., Badziak, M., Baglio, J., Bagnaschi, E., Ballestrero, A., Banfi, A., Barducci, D., Beckingham, M., Becot, C., Bélanger, G., Bellm, J., Belyaev, N., Bernlochner, F. U., Beskidt, C., Biekötter, A., Bishara, F., Bizon, W., Bomark, N. E., Bonvini, M., Borowka, S., Bortolotto, V., Boselli, S., Botella, F. J., Boughezal, R., Branco, G. C., Brehmer, J., Brenner, L., Bressler, S., Brivio, I., Broggio, A., Brun, H., Buchalla, G., Burgard, C. D., Calandri, A., Caminada, L., Caminal Armadans, R., Campanario, F., Campbell, J., Caola, F., Carloni Calame, C. M., Carrazza, S., Carvalho, A., Casolino, M., Cata, O., Celis, A., Cerutti, F., Chanon, N., Chen, M., Chen, X., Chokoufé Nejad, B., Christensen, N., Ciuchini, M., Contino, R., Corbett, T., Costa, R., Curtin, D., Dall'Osso, M., David, A., Dawson, S., DE BLAS MATEO, Jorge, de Boer, W., de Castro Manzano, P., Degrande, C., Delgado, R. L., Demartin, F., Denner, A., Di Micco, B., DI NARDO DI MAIO, Raffaele, Dittmaier, S., Dobado, A., Dorigo, T., Dreyer, F. A., Dührssen, M., Duhr, C., Dulat, F., Ecker, K., Ellis, K., Ellwanger, U., Englert, C., Espriu, D., Falkowski, A., Fayard, L., Feger, R., Ferrera, G., Ferroglia, A., Fidanza, N., Figy, T., Flechl, M., Fontes, D., Forte, S., Francavilla, P., Franco, E., Frederix, R., Freitas, A., Freitas, F. F., Frensch, F., Frixione, S., Fuks, B., Furlan, E., Gadatsch, S., Gao, J., Gao, Y., Garzelli, M. V., Gehrmann, T., Gerosa, R., Ghezzi, M., Ghosh, D., Gieseke, S., Gillberg, D., Giudice, G. F., Glover, E. W. N., Goertz, F., Gonçalves, D., Gonzalez-Fraile, J., Gorbahn, M., Gori, S., Gottardo, C. A., Gouzevitch, M., Govoni, P., Gray, D., Grazzini, M., Greiner, N., Greljo, A., Grigo, J., Gritsan, A. V., Gröber, R., Guindon, S., Haber, H. E., Han, C., Han, T., Harlander, R., Harrendorf, M. A., Hartanto, H. B., Hays, C., Heinemeyer, S., Heinrich, G., Herrero, M., Herzog, F., Hespel, B., Hirschi, V., Hoeche, S., Honeywell, S., Huber, S. J., Hugonie, C., Huston, J., Ilnicka, A., Isidori, Gino, Jäger, B., Jaquier, M., Jones, S. P., Juste, A., Kallweit, S., Kaluza, A., Kardos, A., Karlberg, A., Kassabov, Z., Kauer, N., Kazakov, D. I., Kerner, M., Kilian, W., Kling, F., Köneke, K., Kogler, R., Konoplich, R., Kortner, S., Kraml, S., Krause, C., Krauss, F., Krawczyk, M., Kulesza, A., Kuttimalai, S., Lane, R., Lazopoulos, A., Lee, G., Lenzi, P., Lewis, I. M., Li, Y., Liebler, S., Lindert, J., Liu, X., Liu, Z., Llanes-Estrada, F. J., Logan, H. E., Lopez-Val, D., Low, I., Luisoni, G., Maierhöfer, P., Maina, E., Mansoulié, B., Mantler, H., Mantoani, M., Marini, A. C., Martinez Outschoorn, V. I., Marzani, S., Marzocca, D., Massironi, A., Mawatari, K., Mazzitelli, J., Mccarn, A., Mellado, B., Melnikov, K., Menari, S. B., Merlo, L., Meyer, C., Milenovic, P., Mimasu, K., Mishima, S., Mistlberger, B., Moch, S. -O., Mohammadi, A., Monni, P. F., Montagna, G., Moreno Llácer, M., Moretti, N., Moretti, S., Motyka, L., Mück, A., Mühlleitner, M., Munir, S., Musella, P., Nadolsky, P., Napoletano, D., Nebot, M., Neu, C., Neubert, M., Nevzorov, R., Nicrosini, O., Nielsen, J., Nikolopoulos, K., J. M., No, O'Brien, C., Ohl, T., Oleari, C., Orimoto, T., Pagani, D., Pandini, C. E., Papaefstathiou, A., Papanastasiou, A. S., Passarino, G., Pecjak, B. D., Pelliccioni, M., Perez, G., Perrozzi, L., Petriello, F., Petrucciani, G., Pianori, E., Piccinini, F., Pierini, M., Pilkington, A., Plätzer, S., Plehn, T., Podskubka, R., Potter, C. T., Pozzorini, S., Prokofiev, K., Pukhov, A., Puljak, I., Queitsch-Maitland, M., Quevillon, J., Rathlev, D., Rauch, M., Re, E., Rebelo, M. N., Rebuzzi, D., Reina, L., Reuschle, C., Reuter, J., Riembau, M., Riva, F., Rizzi, A., Robens, T., Röntsch, R., Rojo, J., Romão, J. C., Rompotis, N., Roskes, J., Roth, R., Salam, G. P., Salerno, R., Sampaio, M. O. P., Santos, R., Sanz, V., Sanz-Cillero, J. J., Sargsyan, H., Sarica, U., Schichtel, P., Schlenk, J., Schmidt, T., Schmitt, C., Schönherr, M., Schubert, U., Schulze, M., Sekula, S., Sekulla, M., Shabalina, E., Shao, H. S., Shelton, J., Shepherd-Themistocleous, C. H., Shim, S. Y., Siegert, F., Signer, A., Silva, J. P., Silvestrini, L., Sjodahl, M., Slavich, P., Slawinska, M., Soffi, L., Spannowsky, M., Speckner, C., Sperka, D. M., Spira, M., Stål, O., Staub, F., Stebel, T., Stefaniak, T., Steinhauser, M., Stewart, I. W., Strassler, M. J., Streicher, J., Strom, D. M., Su, S., Sun, X., Tackmann, F. J., Tackmann, K., Teixeira, A. M., Teixeira de Lima, R., Theeuwes, V., Thorne, R., Tommasini, Damiano, Torrielli, P., Tosi, M., Tramontano, F., Trócsányi, Z., Trott, M., Tsinikos, I., Ubiali, M., Vanlaer, P., Verkerke, W., Vicini, A., Viliani, L., Vryonidou, E., Wackeroth, D., Wagner, C. E. M., Wang, J., Wayand, S., Weiglein, G., Weiss, C., Wiesemann, M., Williams, C., Winter, J., Winterbottom, D., Wolf, R., Xiao, M., Yang, LIUYANG LILY, Yohay, R., Yuen, S. P. Y., Zanderighi, G., Zaro, M., Zeppenfeld, D., Ziegler, ROBERT Andreas, Zirke, T., and Zupan (The LHC Higgs Cross Section Working Group), J.
Published: 2017

45. VBF and VH (Chapter I.5)

Author: Aggleton, R, Ahmad, M, Allanach, B, Anastasiou, C, Astill, W, Badger, S, Badziak, M, Baglio, J, Bagnaschi, E, Ballestrero, A, Banfi, A, Barducci, D, Beckingham, M, Becot, C, Bélanger, G, Bellm, J, Belyaev, N, Bernlochner, F, Beskidt, C, Biekötter, A, Bishara, F, Bizon, W, Bomark, N, Bonvini, M, Borowka, S, Bortolotto, V, Boselli, S, Botella, F, Boughezal, R, Branco, G, Brehmer, J, Brenner, L, Bressler, S, Brivio, I, Broggio, A, Brun, H, Buchalla, G, Burgard, C, Calandri, A, Caminada, L, Caminal Armadans, R, Campanario, F, Campbell, J, Caola, F, Carloni Calame, C, Carrazza, S, Carvalho, A, Casolino, M, Cata, O, Celis, A, Cerutti, F, Chanon, N, Chen, M, Chen, X, Chokoufé Nejad, B, Christensen, N, Ciuchini, M, Contino, R, Corbett, T, Costa, R, Curtin, D, Dall'Osso, M, David, A, Dawson, S, de Blas, J, de Boer, W, de Castro Manzano, P, Degrande, C, Delgado, R, Demartin, F, Denner, A, Di Micco, B, Di Nardo, R, Dittmaier, S, Dobado, A, Dorigo, T, Dreyer, F, Dührssen, M, Duhr, C, Dulat, F, Ecker, K, Ellis, K, Ellwanger, U, Englert, C, Espriu, D, Falkowski, A, Fayard, L, Feger, R, Ferrera, G, Ferroglia, A, Fidanza, N, Figy, T, Flechl, M, Fontes, D, Forte, S, Francavilla, P, Franco, E, Frederix, R, Freitas, A, Freitas, F, Frensch, F, Frixione, S, Fuks, B, Furlan, E, Gadatsch, S, Gao, J, Gao, Y, Garzelli, M, Gehrmann, T, Gerosa, R, Ghezzi, M, Ghosh, D, Gieseke, S, Gillberg, D, Giudice, G, Glover, E, Goertz, F, Gonçalves, D, Gonzalez-Fraile, J, Gorbahn, M, Gori, S, Gottardo, C, Gouzevitch, M, Govoni, P, Gray, D, Grazzini, M, Greiner, N, Greljo, A, Grigo, J, Gritsan, A, Gröber, R, Guindon, S, Haber, H, Han, C, Han, T, Harlander, R, Harrendorf, M, Hartanto, H, Hays, C, Heinemeyer, S, Heinrich, G, Herrero, M, Herzog, F, Hespel, B, Hirschi, V, Hoeche, S, Honeywell, S, Huber, S, Hugonie, C, Huston, J, Ilnicka, A, Isidori, G, Jäger, B, Jaquier, M, Jones, S, Juste, A, Kallweit, S, Kaluza, A, Kardos, A, Karlberg, A, Kassabov, Z, Kauer, N, Kazakov, D, Kerner, M, Kilian, W, Kling, F, Köneke, K, Kogler, R, Konoplich, R, Kortner, S, Kraml, S, Krause, C, Krauss, F, Krawczyk, M, Kulesza, A, Kuttimalai, S, Lane, R, Lazopoulos, A, Lee, G, Lenzi, P, Lewis, I, Li, Y, Liebler, S, Lindert, J, Liu, X, Liu, Z, Llanes-Estrada, F, Logan, H, Lopez-Val, D, Low, I, Luisoni, G, Maierhöfer, P, Maina, E, Mansoulié, B, Mantler, H, Mantoani, M, Marini, A, Martinez Outschoorn, V, Marzani, S, Marzocca, D, Massironi, A, Mawatari, K, Mazzitelli, J, Mccarn, A, Mellado, B, Melnikov, K, Menari, S, Merlo, L, Meyer, C, Milenovic, P, Mimasu, K, Mishima, S, Mistlberger, B, Moch, S, Mohammadi, A, Monni, P, Montagna, G, Moreno Llácer, M, Moretti, N, Moretti, S, Motyka, L, Mück, A, Mühlleitner, M, Munir, S, Musella, P, Nadolsky, P, Napoletano, D, Nebot, M, Neu, C, Neubert, M, Nevzorov, R, Nicrosini, O, Nielsen, J, Nikolopoulos, K, No, J, O'Brien, C, Ohl, T, Oleari, C, Orimoto, T, Pagani, D, Pandini, C, Papaefstathiou, A, Papanastasiou, A, Passarino, G, Pecjak, B, Pelliccioni, M, Perez, G, Perrozzi, L, Petriello, F, Petrucciani, G, Pianori, E, Piccinini, F, Pierini, M, Pilkington, A, Plätzer, S, Plehn, T, Podskubka, R, Potter, C, Pozzorini, S, Prokofiev, K, Pukhov, A, Puljak, I, Queitsch-Maitland, M, Quevillon, J, Rathlev, D, Rauch, M, Re, E, Rebelo, M, Rebuzzi, D, Reina, L, Reuschle, C, Reuter, J, Riembau, M, Riva, F, Rizzi, A, Robens, T, Röntsch, R, Rojo, J, Romão, J, Rompotis, N, Roskes, J, Roth, R, Salam, G, Salerno, R, Sampaio, M, Santos, R, Sanz, V, Sanz-Cillero, J, Sargsyan, H, Sarica, U, Schichtel, P, Schlenk, J, Schmidt, T, Schmitt, C, Schönherr, M, Schubert, U, Schulze, M, Sekula, S, Sekulla, M, Shabalina, E, Shao, H, Shelton, J, Shepherd-Themistocleous, C, Shim, S, Siegert, F, Signer, A, Silva, J, Silvestrini, L, Sjodahl, M, Slavich, P, Slawinska, M, Soffi, L, Spannowsky, M, Speckner, C, Sperka, D, Spira, M, Stål, O, Staub, F, Stebel, T, Stefaniak, T, Steinhauser, M, Stewart, I, Strassler, M, Streicher, J, Strom, D, Su, S, Sun, X, Tackmann, F, Tackmann, K, Teixeira, A, Teixeira de Lima, R, Theeuwes, V, Thorne, R, Tommasini, D, Torrielli, P, Tosi, M, Tramontano, F, Trócsányi, Z, Trott, M, Tsinikos, I, Ubiali, M, Vanlaer, P, Verkerke, W, Vicini, A, Viliani, L, Vryonidou, E, Wackeroth, D, Wagner, C, Wang, J, Wayand, S, Weiglein, G, Weiss, C, Wiesemann, M, Williams, C, Winter, J, Winterbottom, D, Wolf, R, Xiao, M, Yang, L, Yohay, R, Yuen, S, Zanderighi, G, Zaro, M, Zeppenfeld, D, Ziegler, R, Zirke, T, Zupan, J, de Florian, D, Grojean, C, Maltoni, F, Mariotti, C, Nikitenko, A, Pieri, M, Savard, P, Schumacher, M, Tanaka, R, Ellis, R, Sjödahl, M, Astill, WA, Dreyer, FA, Ellis, RK, Moch, S. O, OLEARI, CARLO, Pandini, CE, Salam, GP, Zirke, T., Aggleton, R, Ahmad, M, Allanach, B, Anastasiou, C, Astill, W, Badger, S, Badziak, M, Baglio, J, Bagnaschi, E, Ballestrero, A, Banfi, A, Barducci, D, Beckingham, M, Becot, C, Bélanger, G, Bellm, J, Belyaev, N, Bernlochner, F, Beskidt, C, Biekötter, A, Bishara, F, Bizon, W, Bomark, N, Bonvini, M, Borowka, S, Bortolotto, V, Boselli, S, Botella, F, Boughezal, R, Branco, G, Brehmer, J, Brenner, L, Bressler, S, Brivio, I, Broggio, A, Brun, H, Buchalla, G, Burgard, C, Calandri, A, Caminada, L, Caminal Armadans, R, Campanario, F, Campbell, J, Caola, F, Carloni Calame, C, Carrazza, S, Carvalho, A, Casolino, M, Cata, O, Celis, A, Cerutti, F, Chanon, N, Chen, M, Chen, X, Chokoufé Nejad, B, Christensen, N, Ciuchini, M, Contino, R, Corbett, T, Costa, R, Curtin, D, Dall'Osso, M, David, A, Dawson, S, de Blas, J, de Boer, W, de Castro Manzano, P, Degrande, C, Delgado, R, Demartin, F, Denner, A, Di Micco, B, Di Nardo, R, Dittmaier, S, Dobado, A, Dorigo, T, Dreyer, F, Dührssen, M, Duhr, C, Dulat, F, Ecker, K, Ellis, K, Ellwanger, U, Englert, C, Espriu, D, Falkowski, A, Fayard, L, Feger, R, Ferrera, G, Ferroglia, A, Fidanza, N, Figy, T, Flechl, M, Fontes, D, Forte, S, Francavilla, P, Franco, E, Frederix, R, Freitas, A, Freitas, F, Frensch, F, Frixione, S, Fuks, B, Furlan, E, Gadatsch, S, Gao, J, Gao, Y, Garzelli, M, Gehrmann, T, Gerosa, R, Ghezzi, M, Ghosh, D, Gieseke, S, Gillberg, D, Giudice, G, Glover, E, Goertz, F, Gonçalves, D, Gonzalez-Fraile, J, Gorbahn, M, Gori, S, Gottardo, C, Gouzevitch, M, Govoni, P, Gray, D, Grazzini, M, Greiner, N, Greljo, A, Grigo, J, Gritsan, A, Gröber, R, Guindon, S, Haber, H, Han, C, Han, T, Harlander, R, Harrendorf, M, Hartanto, H, Hays, C, Heinemeyer, S, Heinrich, G, Herrero, M, Herzog, F, Hespel, B, Hirschi, V, Hoeche, S, Honeywell, S, Huber, S, Hugonie, C, Huston, J, Ilnicka, A, Isidori, G, Jäger, B, Jaquier, M, Jones, S, Juste, A, Kallweit, S, Kaluza, A, Kardos, A, Karlberg, A, Kassabov, Z, Kauer, N, Kazakov, D, Kerner, M, Kilian, W, Kling, F, Köneke, K, Kogler, R, Konoplich, R, Kortner, S, Kraml, S, Krause, C, Krauss, F, Krawczyk, M, Kulesza, A, Kuttimalai, S, Lane, R, Lazopoulos, A, Lee, G, Lenzi, P, Lewis, I, Li, Y, Liebler, S, Lindert, J, Liu, X, Liu, Z, Llanes-Estrada, F, Logan, H, Lopez-Val, D, Low, I, Luisoni, G, Maierhöfer, P, Maina, E, Mansoulié, B, Mantler, H, Mantoani, M, Marini, A, Martinez Outschoorn, V, Marzani, S, Marzocca, D, Massironi, A, Mawatari, K, Mazzitelli, J, Mccarn, A, Mellado, B, Melnikov, K, Menari, S, Merlo, L, Meyer, C, Milenovic, P, Mimasu, K, Mishima, S, Mistlberger, B, Moch, S, Mohammadi, A, Monni, P, Montagna, G, Moreno Llácer, M, Moretti, N, Moretti, S, Motyka, L, Mück, A, Mühlleitner, M, Munir, S, Musella, P, Nadolsky, P, Napoletano, D, Nebot, M, Neu, C, Neubert, M, Nevzorov, R, Nicrosini, O, Nielsen, J, Nikolopoulos, K, No, J, O'Brien, C, Ohl, T, Oleari, C, Orimoto, T, Pagani, D, Pandini, C, Papaefstathiou, A, Papanastasiou, A, Passarino, G, Pecjak, B, Pelliccioni, M, Perez, G, Perrozzi, L, Petriello, F, Petrucciani, G, Pianori, E, Piccinini, F, Pierini, M, Pilkington, A, Plätzer, S, Plehn, T, Podskubka, R, Potter, C, Pozzorini, S, Prokofiev, K, Pukhov, A, Puljak, I, Queitsch-Maitland, M, Quevillon, J, Rathlev, D, Rauch, M, Re, E, Rebelo, M, Rebuzzi, D, Reina, L, Reuschle, C, Reuter, J, Riembau, M, Riva, F, Rizzi, A, Robens, T, Röntsch, R, Rojo, J, Romão, J, Rompotis, N, Roskes, J, Roth, R, Salam, G, Salerno, R, Sampaio, M, Santos, R, Sanz, V, Sanz-Cillero, J, Sargsyan, H, Sarica, U, Schichtel, P, Schlenk, J, Schmidt, T, Schmitt, C, Schönherr, M, Schubert, U, Schulze, M, Sekula, S, Sekulla, M, Shabalina, E, Shao, H, Shelton, J, Shepherd-Themistocleous, C, Shim, S, Siegert, F, Signer, A, Silva, J, Silvestrini, L, Sjodahl, M, Slavich, P, Slawinska, M, Soffi, L, Spannowsky, M, Speckner, C, Sperka, D, Spira, M, Stål, O, Staub, F, Stebel, T, Stefaniak, T, Steinhauser, M, Stewart, I, Strassler, M, Streicher, J, Strom, D, Su, S, Sun, X, Tackmann, F, Tackmann, K, Teixeira, A, Teixeira de Lima, R, Theeuwes, V, Thorne, R, Tommasini, D, Torrielli, P, Tosi, M, Tramontano, F, Trócsányi, Z, Trott, M, Tsinikos, I, Ubiali, M, Vanlaer, P, Verkerke, W, Vicini, A, Viliani, L, Vryonidou, E, Wackeroth, D, Wagner, C, Wang, J, Wayand, S, Weiglein, G, Weiss, C, Wiesemann, M, Williams, C, Winter, J, Winterbottom, D, Wolf, R, Xiao, M, Yang, L, Yohay, R, Yuen, S, Zanderighi, G, Zaro, M, Zeppenfeld, D, Ziegler, R, Zirke, T, Zupan, J, de Florian, D, Grojean, C, Maltoni, F, Mariotti, C, Nikitenko, A, Pieri, M, Savard, P, Schumacher, M, Tanaka, R, Ellis, R, Sjödahl, M, Astill, WA, Dreyer, FA, Ellis, RK, Moch, S. O, OLEARI, CARLO, Pandini, CE, Salam, GP, and Zirke, T.
Abstract: The production of a Standard Model Higgs boson in association with two hard jets in the forward and backward regions of the detector, frequently quoted as the “vector-boson fusion” (VBF) channel, and the production of a Higgs boson in association with a W or Z boson, known as “VH production” or “Higgsstrahlung”, represent cornerstones in a comprehensive study of Higgs boson couplings at the LHC. These production channels do not only provide valuable information on the couplings of Higgs bosons to the massive gauge bosons by themselves, but also allow for the isolation of the Higgs boson decays into -lepton or bottom-quark pairs, whose investigation is essential in the Higgs boson couplings analysis. In the previous reports [7–9], state-of-the-art predictions and error estimates for the total and differential cross sections for pp ! H + 2 jets and pp ! HV ! H + 2 leptons were compiled (with V = W; Z), but the process of improving and refining predictions is still ongoing, even within the Standard Model. In this contribution we update the cross-section predictions for VBF and VH production, covering integrated total and fiducial cross sections as well as differential distributions. In detail, the presented state-of-the-art predictions include QCD corrections up to next-to-next-to-leading order (NNLO), electroweak (EW) corrections up to next-to-leading order (NLO), and contributions from specific partonic channels that open at higher perturbative orders, such as photon-induced collisions or gluon-fusion contributions. Apart from collecting numerical results, we give recommendations as to how to combine the individual components and to assess conservative estimates of remaining theoretical uncertainties. Moreover, issues connected to the matching and the impact of parton showers (PS) are discussed.
Published: 2017

46. Likelihood analysis of supersymmetric SU(5) GUTs

Author: Bagnaschi, E, Costa, JC, Sakurai, K, Borsato, M, Buchmueller, O, Cavanaugh, R, Chobanova, V, Citron, M, De Roeck, A, Dolan, MJ, Ellis, JR, Flacher, H, Heinemeyer, S, Isidori, G, Lucio, M, Martinez Santos, D, Olive, KA, Richards, A, de Vries, KJ, Weiglein, G, Bagnaschi, E, Costa, JC, Sakurai, K, Borsato, M, Buchmueller, O, Cavanaugh, R, Chobanova, V, Citron, M, De Roeck, A, Dolan, MJ, Ellis, JR, Flacher, H, Heinemeyer, S, Isidori, G, Lucio, M, Martinez Santos, D, Olive, KA, Richards, A, de Vries, KJ, and Weiglein, G
Abstract: We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter space of the models studied has seven parameters: a universal gaugino mass [Formula: see text], distinct masses for the scalar partners of matter fermions in five- and ten-dimensional representations of SU(5), [Formula: see text] and [Formula: see text], and for the [Formula: see text] and [Formula: see text] Higgs representations [Formula: see text] and [Formula: see text], a universal trilinear soft SUSY-breaking parameter [Formula: see text], and the ratio of Higgs vevs [Formula: see text]. In addition to previous constraints from direct sparticle searches, low-energy and flavour observables, we incorporate constraints based on preliminary results from 13 TeV LHC searches for jets + [Formula: see text] events and long-lived particles, as well as the latest PandaX-II and LUX searches for direct Dark Matter detection. In addition to previously identified mechanisms for bringing the supersymmetric relic density into the range allowed by cosmology, we identify a novel [Formula: see text] coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of [Formula: see text] coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC.
Published: 2017

47. Likelihood analysis of the minimal AMSB model

Author: Bagnaschi, E, Borsato, M, Sakurai, K, Buchmueller, O, Cavanaugh, R, Chobanova, V, Citron, M, Costa, JC, De Roeck, A, Dolan, MJ, Ellis, JR, Flaecher, H, Heinemeyer, S, Isidori, G, Lucio, M, Luo, F, Martinez Santos, D, Olive, KA, Richards, A, Weiglein, G, Bagnaschi, E, Borsato, M, Sakurai, K, Buchmueller, O, Cavanaugh, R, Chobanova, V, Citron, M, Costa, JC, De Roeck, A, Dolan, MJ, Ellis, JR, Flaecher, H, Heinemeyer, S, Isidori, G, Lucio, M, Luo, F, Martinez Santos, D, Olive, KA, Richards, A, and Weiglein, G
Abstract: We perform a likelihood analysis of the minimal anomaly-mediated supersymmetry-breaking (mAMSB) model using constraints from cosmology and accelerator experiments. We find that either a wino-like or a Higgsino-like neutralino LSP, [Formula: see text], may provide the cold dark matter (DM), both with similar likelihoods. The upper limit on the DM density from Planck and other experiments enforces [Formula: see text] after the inclusion of Sommerfeld enhancement in its annihilations. If most of the cold DM density is provided by the [Formula: see text], the measured value of the Higgs mass favours a limited range of [Formula: see text] (and also for [Formula: see text] if [Formula: see text]) but the scalar mass [Formula: see text] is poorly constrained. In the wino-LSP case, [Formula: see text] is constrained to about [Formula: see text] and [Formula: see text] to [Formula: see text], whereas in the Higgsino-LSP case [Formula: see text] has just a lower limit [Formula: see text] ([Formula: see text]) and [Formula: see text] is constrained to [Formula: see text] in the [Formula: see text] ([Formula: see text]) scenario. In neither case can the anomalous magnetic moment of the muon, [Formula: see text], be improved significantly relative to its Standard Model (SM) value, nor do flavour measurements constrain the model significantly, and there are poor prospects for discovering supersymmetric particles at the LHC, though there are some prospects for direct DM detection. On the other hand, if the [Formula: see text] contributes only a fraction of the cold DM density, future LHC [Formula: see text]-based searches for gluinos, squarks and heavier chargino and neutralino states as well as disappearing track searches in the wino-like LSP region will be relevant, and interference effects enable [Formula: see text] to agree with the data better than in the SM in the case of wino-like DM with [Formula: see text].
Published: 2017

48. Likelihood analysis of supersymmetric SU(5) GUTs

Author: Bagnaschi, E; https://orcid.org/0000-0002-6827-5022, Costa, J C, Sakurai, K, Borsato, M, Buchmueller, O, Cavanaugh, R, Chobanova, V, Citron, M, De Roeck, A, Dolan, M J, Ellis, J R, Flächer, H, Heinemeyer, S, Isidori, G; https://orcid.org/0000-0003-3825-3874, Lucio, M, Martínez Santos, D, Olive, K A, Richards, A, de Vries, K J, Weiglein, G, Bagnaschi, E; https://orcid.org/0000-0002-6827-5022, Costa, J C, Sakurai, K, Borsato, M, Buchmueller, O, Cavanaugh, R, Chobanova, V, Citron, M, De Roeck, A, Dolan, M J, Ellis, J R, Flächer, H, Heinemeyer, S, Isidori, G; https://orcid.org/0000-0003-3825-3874, Lucio, M, Martínez Santos, D, Olive, K A, Richards, A, de Vries, K J, and Weiglein, G
Published: 2017

49. Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector

Author: Florian, D. de, Grojean, C., Maltoni, F., Mariotti, C., Nikitenko, A., Pieri, M., Savard, P., Schumacher, M., Tanaka, R., Aggleton, R., Ahmad, M.A., Allanach, B., Anastasiou, C., Astill, W., Badger, S.A., Badziak, M., Baglio, J., Bagnaschi, E., Ballestrero, A., Banfi, A., Barducci, D., Beckingham, M., Becot, C., Bélanger, G., Bellm, J., Belyaev, N., Bernlochner, F. U., Beskidt, C., Biekötter, A., Bishara, Fady, Bizon, W., Bomark, N. E., Bonvini, Marco, Borowka, S., Bortolotto, V., Boselli, S., Botella, F. J., Boughezal, R., Branco, G. C., Brehmer, J., Brenner, L., Bressler, S., Brivio, I., Broggio, A., Brun, V.H., Buchalla, G., Burgard, C. D., Calandri, A., Caminada, L., Armadans, R. Caminal, Campanario, F., Campbell, J., Caola, Fabrizio, Calame, C. M. Carloni, Carrazza, Stefano, Carvalho, A., Casolino, M., Cata, O., Celis, A., Cerutti, Francesco, Chanon, N., Chen, M., Chen, X., Nejad, B. Chokoufé, Christensen, N., Ciuchini, M., Contino, R., Corbett, T., Costa, S.R., Curtin, D.M., Dall'Osso, M., David, A., Dawson, S.J., Blas, J. de, Boer, W. de, Manzano, P. de Castro, Degrande, C., Rueda-Delgado, L.M., Demartin, Federico, Denner, A., Micco, B. Di, Nardo, R. Di, Dittmaier, S., Dobado, A., Dorigo, T., Dreyer, F. A., Dührssen, M., Duhr, C., Dulat, F., Ecker, K., Ellis, K.A., Ellwanger, U., Englert, C., Espriu, D., Falkowski, A., Fayard, L., Feger, R., Ferrera, G., Ferroglia, A., Fidanza, N., Figy, T., Flechl, M., Fontes, J.D., Forte, Stefano, Francavilla, P., Franco, E, Frederix, R., Freitas, A., Freitas, F., Frensch, F., Frixione, S., Fuks, B., Furlan, E., Gadatsch, S., Gao, J., Gao, Y., Garzelli, M. V., Gehrmann, T., Gerosa, R., Ghezzi, M., Ghosh, D., Gieseke, S., Gillberg, D., Giudice, G. F., Glover, E. W. N., Goertz, F., Gonçalves, D., Gonzalez-Fraile, J., Gorbahn, M., Gori, S., Gottardo, C. A., Gouzevitch, Maxime, Govoni, P., Gray, D., Grazzini, M., Greiner, N., Greljo, A., Grigo, J., Gritsan, A. V., Gröber, R., Guindon, S., Haber, H. E., Han, C., Han, T.S., Harlander, R., Harrendorf, M. A., Hartanto, H. B., Hays, C., Heinemeyer, S., Heinrich, G., Herrero, M., Herzog, F., Hespel, B., Hirschi, V., Hoeche, S., Honeywell, S., Huber, S. J., Hugonie, C., Huston, Joey, Ilnicka, A., Isidori, G., Jäger, B., Jaquier, M., Jones, S. P., Juste, A., Kallweit, S., Kaluza, A., Kardos, A., Karlberg, A.T., Kassabov, Zahari, Kauer, N., Kazakov, D. I., Kerner, M., Kilian, W., Kling, M.F., Köneke, K., Kogler, R., Konoplich, R., Kortner, S., Kraml, S., Krause, C., Krauss, F., Krawczyk, P.M., Kulesza, Anna, Kuttimalai, S., Lane, R., Lazopoulos, A., Lee, W.G., Lenzi, P., Lewis, I. M., Li, Y., Liebler, S., van Lindert, E.J., Liu, X., Liu, Z., Llanes-Estrada, F. J., Logan, H. E., Lopez-Val, D., Low, I., Luisoni, G., Maierhöfer, P., Maina, E., Mansoulié, B., Mantler, H., Mantoani, M., Marini, A. C., Outschoorn, V. I. Martinez, Marzani, Simone, Marzocca, D., Massironi, A., Mawatari, K., Mazzitelli, J., McCarn, A., Mellado, B., Melnikov, K., Menari, S. B., Merlo, L., Meyer, C., Milenovic, P., Mimasu, K., Mishima, S., Mistlberger, B., Moch, S. O., Mohammadi, A., Monni, P. F., Montagna, G., Llácer, M. Moreno, Moretti, N., Moretti, S., Motyka, L., Mück, A., Mühlleitner, M., Munir, S., Musella, P., Nadolsky, Pavel, Napoletano, D., Nebot, M., Neu, C., Neubert, R.E.M., Nevzorov, R., Nicrosini, O., Nielsen, J., Nikolopoulos, K., No, J. M., O'Brien, C., Ohl, T., Oleari, C., Orimoto, T. J., Pagani, D., Pandini, C. E., Papaefstathiou, A., Papanastasiou, A. S., Passarino, G., Pecjak, B. D., Pelliccioni, M., Perez, J.G., Perrozzi, Luca, Petriello, F., Petrucciani, G., Pianori, E., Piccinini, F., Pierini, M., Pilkington, A., Plätzer, S., Plehn, T., Podskubka, R., Potter, C. T., Pozzorini, S., Prokofiev, K., Pukhov, A., Puljak, I., Queitsch-Maitland, M., Quevillon, J., Rathlev, D., Rauch, S.A.M., Re, E., Rebelo, M. N., Rebuzzi, D., Reina, L., Reuschle, C., Reuter, J., Riembau, M., Riva, F., Rizzi, A., Robens, T., Röntsch, R., Rojo, J., Romão, J. C., Rompotis, N., Roskes, J., Roth, R., Salam, Gavin P., Salerno, R., Sampaio, M. O. P., Santos, R., Sanz-Nebot, V., Sanz-Cillero, J. J., Sargsyan, H., Sarica, U., Schichtel, P., Schlenk, J., Schmidt, T., Schmitt, C., Schönherr, M., Schubert, U., Schulze, M., Sekula, S. J., Sekulla, M., Shabalina, E., Shao, H. -S., Shelton, J., Shepherd-Themistocleous, C. H., Shim, S. Y., Siegert, F., Signer, A., Da Silva, J.P., Silvestrini, L., Sjodahl, M., Slavich, P., Slawinska, M., Soffi, L., Spannowsky, M., Speckner, C., Sperka, D. M., Spira, M., Stål, O., Staub, F., Stebel, T., Stefaniak, T., Steinhauser, M., Stewart, I. W., Strassler, M. J., Streicher, J., Strom, D. M., Su, S., Sun, X., Tackmann, F. J., Tackmann, K., Teixeira, A. M., Lima, R. Teixeira de, Theeuwes, V., Thorne, R., Tommasini, D., Torrielli, P., Tosi, M., Tramontano, F., Trócsányi, Z., Trott, M., Tsinikos, I., Ubiali, Maria, Vanlaer, P., Verkerke, W., Vicini, A., Viliani, L., Vryonidou, E., Wackeroth, D., Wagner, C. E. M., Wang, J., Wayand, S., Weiglein, G., Weiss, C., Wiesemann, M., Williams, C., Winter, J., Winterbottom, D., Wolf, R., Xiao, S.M., Yang, L. L., Yohay, R., Yuen, S. P. Y., Zanderighi, G., Zaro, M., Zeppenfeld, D., Ziegler, R., Zirke, T., Zupan, J., de Florian, Daniel, fabio, maltoni, Chiara, Mariotti, Nikitento, Aleksandr, Marco, Pieri, Pierre, Savard, and (Astro)-Particles Physics
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), hep-ex, High Energy Physics::Phenomenology, FOS: Physical sciences, hep-ph, High Energy Physics::Experiment, High Energy Physics - Experiment
Abstract: This Report summarizes the results of the activities of the LHC Higgs Cross Section Working Group in the period 2014-2016. The main goal of the working group was to present the state-of-the-art of Higgs physics at the LHC, integrating all new results that have appeared in the last few years. The first part compiles the most up-to-date predictions of Higgs boson production cross sections and decay branching ratios, parton distribution functions, and off-shell Higgs boson production and interference effects. The second part discusses the recent progress in Higgs effective field theory predictions, followed by the third part on pseudo-observables, simplified template cross section and fiducial cross section measurements, which give the baseline framework for Higgs boson property measurements. The fourth part deals with the beyond the Standard Model predictions of various benchmark scenarios of Minimal Supersymmetric Standard Model, extended scalar sector, Next-to-Minimal Supersymmetric Standard Model and exotic Higgs boson decays. This report follows three previous working-group reports: Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables (CERN-2011-002), Handbook of LHC Higgs Cross Sections: 2. Differential Distributions (CERN-2012-002), and Handbook of LHC Higgs Cross Sections: 3. Higgs properties (CERN-2013-004). The current report serves as the baseline reference for Higgs physics in LHC Run 2 and beyond., Comment: 869 pages, 295 figures, 248 tables and 1645 citations. Working Group web page: https://twiki.cern.ch/twiki/bin/view/LHCPhysics/LHCHXSWG
Published: 2016
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50. Higgs-boson production in the MSSM

Author: Flechl M, Harlander R, Kraemer M, Lehti S, Slavich P, Spira M, Vazquez Acosta M, Vickey T, Bagnaschi E, Carena M, Dittmaier S, Heinemeyer S, Kless R, Laurila S, Liebler S, Mantler H, Stal O, Ubiali M, Vicini A, Wagner C, Weiglein G., DEGRASSI, GIUSEPPE, Heinemayer S, Mariotti C, Passarino G, Tanaka R, Flechl, M, Harlander, R, Kraemer, M, Lehti, S, Slavich, P, Spira, M, Vazquez Acosta, M, Vickey, T, Bagnaschi, E, Carena, M, Degrassi, Giuseppe, Dittmaier, S, Heinemeyer, S, Kless, R, Laurila, S, Liebler, S, Mantler, H, Stal, O, Ubiali, M, Vicini, A, Wagner, C, and Weiglein, G.
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract: This Report summarizes the results of the activities in 2012 and the first half of 2013 of the LHC Higgs Cross Section Working Group. The main goal of the working group was to present the state of the art of Higgs Physics at the LHC, integrating all new results that have appeared in the last few years. This report follows the first working group report Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables (CERN-2011-002) and the second working group report Handbook of LHC Higgs Cross Sections: 2. Differential Distributions (CERN-2012-002). After the discovery of a Higgs boson at the LHC in mid-2012 this report focuses on refined prediction of Standard Model (SM) Higgs phenomenology around the experimentally observed value of 125-126 GeV, refined predictions for heavy SM-like Higgs bosons as well as predictions in the Minimal Supersymmetric Standard Model and first steps to go beyond these models. The other main focus is on the extraction of the characteristics and properties of the newly discovered particle such as couplings to SM particles, spin and CP-quantum numbers etc.
Published: 2013

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