457 citations · 2.5k across the 30 of their papers we have counts for
30 papers · 1 filter
Effective Field Theory Perspective On King Non-linearity
Benoît Assi, Sam Carey, Sebastian Jäger +4
Precision spectroscopic measurements of isotope shifts have recently reached a high level of accuracy. Tests of King non-linearity (NL) along isotope chains have been proposed as a…
Semileptonic weak Hamiltonian to in momentum-space subtraction schemes
M. Gorbahn, S. Jäger, F. Moretti +1
The CKM unitarity precision test of the Standard Model requires a systematic treatment of electromagnetic and strong corrections for semi-leptonic decays. Electromagnetic correctio…
Probing B-Anomalies via Dimuon Tails at a Future Collider
Bradley Garland, Sebastian Jäger, Charanjit K. Khosa +1
We investigate the sensitivity of future proton-proton colliders to a contact interaction of the form as indicated by the long-standing r…
Charming New -Physics
S. Jäger, M. Kirk, A. Lenz +1
We give a comprehensive account of the flavour physics of Beyond-Standard-Model (BSM) effects in transitions, considering the full set of 20 four-quark operator…
Towards the discovery of new physics with lepton-universality ratios of decays
Li-Sheng Geng, Benjamín Grinstein, Sebastian Jäger +3
Tests of lepton-universality as rate ratios in transitions can be predicted very accurately in the Standard Model. The deficits with respect to expectations repor…
Charming new physics in rare B-decays and mixing?
Sebastian Jäger, Matthew Kirk, Alexander Lenz +1
We conduct a systematic study of the impact of new physics in quark-level transitions on -physics, in particular rare -decays and -meson lifetime obser…
Towards NNLO accuracy for
M Cerdà-Sevilla, M Gorbahn, S Jäger +1
The quantity measures direct CP violation in Kaon decays. Recent SM predictions show a tension with data, with the theoretical uncertainty dominat…
Interpreting a 750 GeV Diphoton Resonance
Rick S. Gupta, Sebastian Jäger, Yevgeny Kats +2
We discuss the implications of the significant excesses in the diphoton final state observed by the LHC experiments ATLAS and CMS around a diphoton invariant mass of 750 GeV. The i…
Improved anatomy of epsilon'/epsilon in the Standard Model
Andrzej J. Buras, Martin Gorbahn, Sebastian Jäger +1
We present a new analysis of the ratio epsilon'/epsilon within the Standard Model (SM) using a formalism that is manifestly independent of the values of leading (V-A)x(V-A) QCD pen…
BEACH 2014 Theory Summary
Sebastian Jäger
I summarize key aspects of the quest for physics beyond the Standard Model in flavour physics as discussed at the BEACH 2014 conference in Birmingham.
Reassessing the discovery potential of the decays in the large-recoil region: SM challenges and BSM opportunities
Sebastian Jäger, Jorge Martin Camalich
We critically examine the potential to disentangle Standard Model (SM) and New Physics (NP) in and decays, focusing on the LHCb anomaly,…
On B -> V l l at small dilepton invariant mass, power corrections, and new physics
Sebastian Jäger, Jorge Martin Camalich
We investigate rare semileptonic \bar B -> \bar K^* l^+ l^- decays, providing a comprehensive treatment of theoretical uncertainties in the low-q^2 region as needed for interpretin…
SUSY_FLAVOR v2.5: a computational tool for FCNC and CP-violating processes in the MSSM
A. Crivellin, J. Rosiek, P. H. Chankowski +3
We present SUSY_FLAVOR version 2.5 - a Fortran 77 program that calculates low-energy flavor observables in the general -parity conserving MSSM. For a set of MSSM parameters as i…
Flavour Physics in an SO(10) Grand Unified Model
Jennifer Girrbach
Grand unified theories open the possibility to transfer the neutrino mixing matrix U_PMNS to the quark sector. This is accomplished in a controlled way in a supersymmetric grand-un…
Flavour Physics in the Soft Wall Model
Paul R. Archer, Stephan J. Huber, Sebastian Jäger
We extend the description of flavour that exists in the Randall-Sundrum (RS) model to the soft wall (SW) model in which the IR brane is removed and the Higgs is free to propagate i…
Flavor Physics in an SO(10) Grand Unified Model
Jennifer Girrbach, Sebastian Jager, Markus Knopf +4
In supersymmetric grand-unified models, the lepton mixing matrix can possibly affect flavor-changing transitions in the quark sector. We present a detailed analysis of a model prop…
Precise MS-bar light-quark masses from lattice QCD in the RI/SMOM scheme
Martin Gorbahn, Sebastian Jager
We compute the conversion factors needed to obtain the MS-bar and RGI up, down, and strange-quark masses at next-to-next-to-leading order from the corresponding parameters renormal…
SUSY_FLAVOR: a computational tool for FCNC and CP-violating processes in the MSSM
Janusz Rosiek, Piotr Chankowski, Athanasios Dedes +2
We present SUSY_FLAVOR -- a Fortran 77 program that calculates important leptonic and semi-leptonic low-energy observables in the general R-parity conserving MSSM. For a set of inp…
Theoretical overview of b->s hadronic decays
Sebastian Jager
A wealth of data on hadronic b -> s transitions is available from the B-factories and will be improved at the LHCb experiment and possible future super-B-factories. I review the th…
Flavor Physics in the Quark Sector
M. Antonelli, D. M. Asner, D. Bauer +137
One of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor and measurements and theoretical interpretations of their res…
The supersymmetric Higgs sector and B-Bbar mixing for large tan beta
Martin Gorbahn, Sebastian Jager, Ulrich Nierste +1
We match the Higgs sector of the most general flavour breaking and CP violating minimal supersymmetric standard model (MSSM) onto a generic two-Higgs-doublet model, paying special…
B, D and K decays
G. Buchalla, T. K. Komatsubara, F. Muheim +124
With the advent of the LHC, we will be able to probe New Physics (NP) up to energy scales almost one order of magnitude larger than it has been possible with present accelerator fa…
Another Look at Minimal Lepton Flavour Violation, l_i -> l_j gamma, Leptogenesis, and the Ratio M_nu/ Lambda_LFV
Gustavo C. Branco, Andrzej J. Buras, Sebastian Jager +2
We analyze lepton flavour violation (LFV), as well as generation of the observed baryon-antibaryon asymmetry of the Universe (BAU) within a generalized minimal lepton flavour viola…
K^+ -> pi^+ nu nu-bar and K_L -> pi^0 nu nu-bar Decays in the General MSSM
Andrzej J. Buras, Thorsten Ewerth, Sebastian Jager +1
We reanalyze the rare decays K^+ -> pi^+ nu nu-bar and K_L -> pi^0 nu nu-bar in a general MSSM with conserved R-parity. Working in the mass eigenstate basis and performing adaptive…