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The same, yet not the same: how to crack a paradigm (Flavor anomalies: status and prospects) / Hiller, Gudrun (speaker) (Technische Universitaet Dortmund (DE))
The behavior of matter is ruled by the standard model of particle physics -- really? Old puzzles and new evidences from precision measurements are lurking and pose challenges to standard theory. Deviations in processes as rare as one in a billion suggest that electrons and muons are more different than thought: they should behave the same according to the standard model, yet, recent data from the Large Hadron Collider in Geneva finds them to behave differently. If taken at face value, this anomaly heralds a very loud breakdown of the standard model, and requires out-of-the-box new physics. Intriguingly, cracking this with leptoquarks, i.e., new particles which share features from quarks and leptons alike, also open doors into the notorious and longstanding flavor puzzle. This talk reports on the rise of the anomalies in flavor physics, rare decays of beauty quarks and further cracks in the building..
2022 - 4037. Theory Colloquia External link: Event details In : The same, yet not the same: how to crack a paradigm (Flavor anomalies: status and prospects)

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Asymptotically safe extensions of the Standard Model with flavour phenomenology / Hiller, Gudrun (Dortmund U.) ; Hormigos-Feliu, Clara (Dortmund U.) ; Litim, Daniel F. (Sussex U.) ; Steudtner, Tom (Sussex U.)
We investigate asymptotically safe extensions of the Standard Model with new matter fields arising in the TeV energy range. The new sector contains singlet scalars and vector-like fermions in representations which permit Yukawa interactions with the Standard Model leptons. [...]
arXiv:1905.11020; DO-TH 19/07; QFET-2019-05.- 2019 - 4 p. - Published in : (2019) , pp. 415-418 Fulltext: PDF;
In : 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 16 - 23 Mar 2019, pp.415-418

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Physics Briefing Book : Input for the European Strategy for Particle Physics Update 2020 / Ellis, Richard Keith
The European Particle Physics Strategy Update (EPPSU) process takes a bottom-up approach, whereby the community is first invited to submit proposals (also called inputs) for projects that it would like to see realised in the near-term, mid-term and longer-term future [...]
arXiv:1910.11775 ; CERN-ESU-004 - Geneva : CERN, 2019 - 254.

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A large Muon Electric Dipole Moment from Flavor? / Hiller, Gudrun (CERN ; Dortmund U.) ; Huitu, Katri (Helsinki U. ; Helsinki Inst. of Phys.) ; Ruppell, Timo (Helsinki U. ; Helsinki Inst. of Phys.) ; Laamanen, Jari (Nijmegen U.)
We study the prospects and opportunities of a large muon electric dipole moment (EDM) of the order (10^{-24} - 10^{-22}) ecm. We investigate how natural such a value is within the general minimal supersymmetric extension of the Standard Model with CP violation from lepton flavor violation in view of the experimental constraints. [...]
arXiv:1008.5091; CERN-PH-TH-2010-189; DO-TH-09-09; HIP-2009-17-TH; CERN-PH-TH-2010-189; DO-TH 09-09; HIP-2009-17-TH.- 2010 - 12 p. - Published in : Phys. Rev. D 82 (2010) 093015 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint

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The Benefits of B ---> K* l+ l- Decays at Low Recoil / Bobeth, Christoph (Strasbourg, IPHC) ; Hiller, Gudrun (CERN ; Dortmund U.) ; van Dyk, Danny (Dortmund U.)
Using the heavy quark effective theory framework put forward by Grinstein and Pirjol we work out predictions for B -> K* l+ l-, l = (e, mu), decays for a softly recoiling K*, i.e., for large dilepton masses sqrt{q^2} of the order of the b-quark mass m_b. We work to lowest order in Lambda/Q, where Q = (m_b, sqrt{q^2}) and include the next-to-leading order corrections from the charm quark mass m_c and the strong coupling at O(m_c^2/Q^2, alpha_s). [...]
arXiv:1006.5013; CERN-PH-TH-2010-134; DO-TH-10-08.- 2010 - 31 p. - Published in : JHEP 07 (2010) 098 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

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Heavy Flavor Physics (Theory) / Gudrun Hiller (speaker)
2009 - 4219. CERN-Fermilab HCP Summer School; 2009 CERN-Fermilab HCP Summer School External links: Talk details; Event details In : 2009 CERN-Fermilab HCP Summer School

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Heavy Flavor Physics (Theory) / Gudrun Hiller (speaker)
2009 - 3840. CERN-Fermilab HCP Summer School; 2009 CERN-Fermilab HCP Summer School External links: Talk details; Event details In : 2009 CERN-Fermilab HCP Summer School

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Phenomenological study of the double radiative decay $B ->K\gamma\gamma$ / Hiller, Gudrun (Dortmund U.) ; Safir, A.Salim (CERN)
Using the operator product expansion (OPE) technique, we study the rare double radiative decay $B\to K \gamma\gamma$ in the Standard Model (SM) and beyond. We estimate the short-distance (SD) contribution to the decay amplitude in a region of the phase space which is around the point where all decay products have energy $\sim m_b/3$ in the rest frame of the $B$-meson. [...]
hep-ph/0511316; CERN-PH-TH-2005-236; DO-TH-2005-10; LMU-ASC-75-05; CERN-PH-TH-2005-236; DO-TH-2005-10; LMU-ASC-2005-75.- Geneva : CERN, 2006 - 4 p. - Published in : PoS HEP2005 (2006) 277 Access to fulltext document: PDF; Fulltext: HEP2005_277 - PDF; arXiv:hep-ph_0511316 - PDF; Published version from PoS: PDF; External links: Fulltext; Proceedings of Science Server
In : International Europhysics Conference on High-Energy Physics, Lisbon, Portugal, 21 - 27 Jul 2005, pp.277

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Phenomenology of non-standard Z couplings in exclusive semileptonic $b \to s$ transitions / Buchalla, Gerhard (CERN) ; Hiller, Gudrun (SLAC) ; Isidori, Gino (Munich, Tech. U. ; Frascati)
The rare decays $B\to K^{(*)}\ell^+\ell^-$, $B\to K^{(*)}\nu\bar\nu$ and $B_s\to\mu^+\mu^-$ are analyzed in a generic scenario where New Physics effects enter predominantly via $Z$ penguin contributions. We show that this possibility is well motivated on theoretical grounds, as the $\bar sbZ$ vertex is particularly susceptible to non-standard dynamics. [...]
hep-ph/0006136; SLAC-PUB-8430; CERN-TH-2000-156; TUM-HEP-374-00; CERN-TH-2000-156; SLAC-PUB-8430; TUM-HEP-374.- Geneva : CERN, 2001 - 28 p. - Published in : Phys. Rev. D 63 (2001) 014015 APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External links: Fulltext; SLAC Document Server - Please contact the library if you need to access this document.

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Смотрите также: похожие имена автора
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