Publications (27)
SUSY-QCD corrections to stop annihilation into electroweak final states including Coulomb enhancement effects
J. Harz, B. Herrmann, M. Klasen +2
We present the full supersymmetric QCD corrections for stop-anti-stop annihilation into electroweak final states within the Minimal Supersymmetric Standard Mode…
Flavour violating bosonic squark decays at LHC
K. Hidaka, A. Bartl, H. Eberl +4
Quark flavour conserving (QFC) fermionic squark decays, such as ~t_{1,2} -> t neutralino_i, are usually assumed in squark search analyses. Here we study quark flavour violating (QF…
Precision predictions for supersymmetric dark matter
J. Harz, B. Herrmann, M. Klasen +3
The dark matter relic density has been measured by Planck and its predecessors with an accuracy of about 2%. We present theoretical calculations with the numerical program DM@NLO i…
Flavour violating gluino three-body decays at LHC
A. Bartl, H. Eberl, E. Ginina +4
We study the effect of squark generation mixing on gluino production and decays at LHC in the Minimal Supersymmetric Standard Model (MSSM) for the case that the gluino is lighter t…
Dilepton constraints in the Inert Doublet Model from Run 1 of the LHC
G. Belanger, B. Dumont, A. Goudelis +3
Searches in final states with two leptons plus missing transverse energy, targeting supersymmetric particles or invisible decays of the Higgs boson, were performed during Run 1 of…
Les Houches 2023: Physics at TeV Colliders: Standard Model Working Group Report
J. Andersen, B. Assi, K. Asteriadis +81
This report presents a short summary of the activities of the "Standard Model" working group for the "Physics at TeV Colliders" workshop (Les Houches, France, 12-30 June, 2023).
SUSY-QCD corrections to dark matter annihilations
K. Kovarik, B. Herrmann
We present full QCD and SUSY-QCD corrections to neutralino pair annihilation into quark-antiquark pairs. We show results and numerically evaluate their impact on the neutralino ann…
Dark matter in the Inert Doublet Model after the discovery of a Higgs-like boson at the LHC
A. Goudelis, B. Herrmann, O. Stål
We examine the Inert Doublet Model in light of the discovery of a Higgs-like boson with a mass of roughly 126 GeV at the LHC. We evaluate one-loop corrections to the scalar masses…
Neutralino-stop co-annihilation into electroweak gauge and Higgs bosons at one loop
J. Harz, B. Herrmann, M. Klasen +2
We compute the full O(alpha_s) supersymmetric QCD corrections for neutralino-stop co-annihilation into electroweak gauge and Higgs bosons in the Minimal Supersymmetric Standard Mod…
Flavour violating up-squark decays at LHC
H. Eberl, A. Bartl, B. Herrmann +3
We study the effect of squark generation mixing on squark production and decays at the LHC in the Minimal Supersymmetric Standard Model (MSSM). We show that the effect can be very…
Flavour Violation in Gauge-Mediated Supersymmetry Breaking Models: Experimental Constraints and Phenomenology at the LHC
B. Fuks, B. Herrmann, M. Klasen
We present an extensive analysis of gauge-mediated supersymmetry breaking models with minimal and non-minimal flavour violation. We first demonstrate that low-energy, precision ele…
Squark-pair annihilation into quarks at next-to-leading order
S. Schmiemann, J. Harz, B. Herrmann +2
The Minimal Supersymmetric Standard Model (MSSM) is under intense scrutiny at the LHC and in dark matter searches. Interestingly, scenarios with light squarks of the third generati…
SUSY-QCD Corrections to Dark Matter Annihilation in the Higgs Funnel
B. Herrmann, M. Klasen
We compute the full O(alpha_s) SUSY-QCD corrections to dark matter annihilation in the Higgs-funnel, resumming potentially large mu tan beta and A_b contributions and keeping all f…
SUSY-QCD corrected and Sommerfeld enhanced stau annihilation into heavy quarks with scheme and scale uncertainties
J. Branahl, J. Harz, B. Herrmann +3
We investigate stau-antistau annihilation into heavy quarks in the phenomenological Minimal Supersymmetric Standard Model within the DM@NLO project. We present the calculation of t…
Collider aspects of flavour physics at high Q
T. Lari, L. Pape, W. Porod +105
This review presents flavour related issues in the production and decays of heavy states at LHC, both from the experimental side and from the theoretical side. We review top quark…
Impact of squark generation mixing on the search for squarks and gluinos at LHC
A. Bartl, H. Eberl, B. Herrmann +5
We study the effect of squark-generation mixing on production and decays of squarks and gluinos at LHC in the Minimal Supersymmetric Standard Model (MSSM). We show that the mixing…
Les Houches 2017: Physics at TeV Colliders New Physics Working Group Report
G. Brooijmans, M. Dolan, S. Gori +80
We present the activities of the `New Physics' working group for the `Physics at TeV Colliders' workshop (Les Houches, France, 5--23 June, 2017). Our report includes new physics st…
Impact of SUSY-QCD corrections on neutralino-stop co-annihilation and the neutralino relic density
J. Harz, B. Herrmann, M. Klasen +2
We have calculated the full O(alpha_s) supersymmetric QCD corrections to neutralino-stop co-annihilation into electroweak vector and Higgs bosons within the Minimal Supersymmetric…
Theoretical uncertainty of the supersymmetric dark matter relic density from scheme and scale variations
J. Harz, B. Herrmann, M. Klasen +2
For particle physics observables at colliders such as the LHC at CERN, it has been common practice for many decades to estimate the theoretical uncertainty by studying the variatio…
Les Houches 2013: Physics at TeV Colliders: New Physics Working Group Report
G. Brooijmans, R. Contino, B. Fuks +87
We present the activities of the "New Physics" working group for the "Physics at TeV Colliders" workshop (Les Houches, France, 3--21 June, 2013). Our report includes new computatio…
One-loop corrections to gaugino (co-)annihilation into quarks in the MSSM
B. Herrmann, M. Klasen, K. Kovarik +2
We present the full supersymmetric QCD corrections for gaugino annihilation and co-annihilation into light and heavy quarks in the Minimal Supersymmetric Standa…
Squark and Gaugino Hadroproduction and Decays in Non-Minimal Flavour Violating Supersymmetry
G. Bozzi, B. Fuks, B. Herrmann +1
We present an extensive analysis of squark and gaugino hadroproduction and decays in non-minimal flavour violating supersymmetry. We employ the so-called super-CKM basis to define…
One-loop corrections to neutralino-stop coannihilation revisited
J. Harz, B. Herrmann, M. Klasen +1
We discuss the supersymmetric QCD corrections to neutralino-stop coannihilation into a top quark and a gluon in the Minimal Supersymmetric Standard Model (MSSM). T…
Flavour violating squark and gluino decays at LHC
K. Hidaka, A. Bartl, H. Eberl +4
We study the effects of squark generation mixing on squark and gluino production and decays at LHC in the Minimal Supersymmetric Standard Model (MSSM) with focus on the mixing betw…
Impact of squark generation mixing on the search for squarks decaying into fermions at LHC
A. Bartl, H. Eberl, B. Herrmann +3
We study the effect of squark generation mixing on squark production and decays at LHC in the Minimal Supersymmetric Standard Model (MSSM). We show that the effect can be very larg…
Flavour violating bosonic squark decays at LHC
A. Bartl, H. Eberl, E. Ginina +4
We study quark flavour violation (QFV) in the squark sector of the Minimal Supersymmetric Standard Model (MSSM). We assume mixing between the second and the third squark generation…
Accommodating muon and leptogenesis in a scotogenic model
A. Alvarez, A. Banik, R. Cepedello +4
We present a detailed study of a scotogenic model accommodating dark matter, neutrino masses and the anomalous magnetic moment of the muon while being consistent with the existing…