SCOAP3 Repository 8 records found  Search took 0.29 seconds. 
1. Master formula for ε ′ / ε beyond the Standard Model / Aebischer, Jason ; Bobeth, Christoph ; Buras, Andrzej J. ; Gérard, Jean-Marc ; et al
We present for the first time a master formula for ε′/ε , the ratio probing direct CP violation in K→ππ decays, valid in any ultraviolet extension of the Standard Model (BSM). [...]
Published in Physics letters B 792 (2019) 465-469 10.1016/j.physletb.2019.04.016
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2. Anatomy of ε′/ε beyond the standard model / Aebischer, Jason ; Bobeth, Christoph ; Buras, Andrzej J. ; Straub, David M.
We present for the first time a model-independent anatomy of the ratio ε′/ε in the context of the ΔS=1 effective theory with operators invariant under QCD and QED and in the context of the standard model effective field theory (SMEFT) with the operators invariant under the full SM gauge group. [...]
Published in EPJC 79 (2019) 219 10.1140/epjc/s10052-019-6715-6
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3. QCD improved matching for semileptonic B decays with leptoquarks / Aebischer, Jason ; Crivellin, Andreas ; Greub, Christoph
Leptoquarks (LQs) provide very promising solutions to the tensions between the experimental measurements and the SM predictions of bs+ and bcτν processes. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.055002 arXiv:1811.08907
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4. BSM hadronic matrix elements for ε ′ / ε and K → ππ decays in the Dual QCD approach / Aebischer, Jason ; Buras, Andrzej ; Gérard, Jean-Marc
We calculate for the first time all four-quark hadronic matrix elements of local operators possibly contributing to K → ππ decays and in particular to the ratio ε ′ /ε beyond the Standard Model (BSM). [...]
Published in JHEP 1902 (2019) 021 10.1007/JHEP02(2019)021 arXiv:1807.01709
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5. : a Python package for the running and matching of Wilson coefficients above and below the electroweak scale / Aebischer, Jason ; Kumar, Jacky ; Straub, David M.
wilson is a Python library for matching and running Wilson coefficients of higher-dimensional operators beyond the Standard Model. [...]
Published in EPJC 78 (2018) 1026 10.1140/epjc/s10052-018-6492-7
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6. The MSSM without gluinos; an effective field theory for the stop sector / Aebischer, Jason ; Crivellin, Andreas ; Greub, Christoph ; Yamada, Youichi
In this article we study the MSSM with stops and Higgs scalars much lighter than gluinos and squarks of the first two generations. [...]
Published in EPJC 77 (2017) 740 10.1140/epjc/s10052-017-5318-3
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7. B physics beyond the Standard Model at one loop: complete renormalization group evolution below the electroweak scale / Aebischer, Jason ; Fael, Matteo ; Greub, Christoph ; Virto, Javier
General analyses of B -physics processes beyond the Standard Model require accounting for operator mixing in the renormalization-group evolution from the matching scale down to the typical scale of B physics. [...]
Published in JHEP 1709 (2017) 158 10.1007/JHEP09(2017)158 arXiv:1704.06639
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8. Matching of gauge invariant dimension-six operators for b → s and b → c transitions / Aebischer, Jason ; Crivellin, Andreas ; Fael, Matteo ; Greub, Christoph
New physics realized above the electroweak scale can be encoded in a model independent way in the Wilson coefficients of higher dimensional operators which are in-variant under the Standard Model gauge group. [...]
Published in JHEP 1605 (2016) 037 10.1007/JHEP05(2016)037 arXiv:1512.02830
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