Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.8k papers
- University of GenevaCH1.6k papers
- University of OxfordGB1.4k papers
- University of CambridgeGB1.4k papers
- University of MichiganUS1.3k papers
- European Organization for Nuclear ResearchCH1.3k papers
- Aix-Marseille UniversitéFR1.3k papers
- University of WarwickGB1.3k papers
- Brookhaven National LaboratoryUS1.3k papers
- Lancaster UniversityGB1.3k papers
- Johannes Gutenberg University MainzDE1.3k papers
- University of ChicagoUS1.3k papers
18 papers · 2 filters
Light-quark dynamics
J. Gasser
I present introductory lectures on the use of effective field theory methods in QCD at low energies.
Two-Loop Vertices in Quantum Field Theory: Infrared Convergent Scalar Configurations
A. Ferroglia, G. Passarino, M. Passera +1
A comprehensive study is performed of general massive, scalar, two-loop Feynman diagrams with three external legs. Algorithms for their numerical evaluation are introduced and disc…
Beyond leading-order corrections to bar{B} -> X_s gamma at large tan beta: the charged-Higgs-boson contribution
Francesca Borzumati, Christoph Greub, Youichi Yamada
Among the O(alpha_s tan beta) contributions to the Wilson coefficients C_7 and C_8, relevant for the decay bar{B} -> X_s gamma, those induced by two-loop diagrams with charged-Higg…
Improved -Meson Distribution Amplitudes from Inclusive Decay
A. Ali, A. Ya. Parkhomenko
We calculate the -meson energy spectrum in the decay in the leading-order perturbative QCD in the static-quark limit for the ort…
The Vertex Function in Perturbative QCD and -Meson Mass Effects
A. Ali, A. Ya. Parkhomenko
The effective vertex function (EVF) is calculated in the QCD hard-scattering approach, taking into account the -meson mass. We work in the approxim…
Charged Kaon K \to 3 pi CP Violating Asymmetries at NLO in CHPT
Elvira Gamiz, Joaquim Prades, Ignazio Scimemi
We give the first full next-to-leading order analytical results in Chiral Perturbation Theory for the charged Kaon K \to 3 pi slope g and decay rates CP-violating asymmetries. We h…
Review on the inclusive rare decays B -> X_s gamma and B -> X_d gamma in the Standard Model
Kay Bieri, Christoph Greub
We review the NLL QCD calculations for the branching ratio of B -> X_s gamma in the SM. In particular, we emphasize the problem related to the definition of the charm quark mass wh…
Renormalization group equations for effective field theories
Matthias Buchler, Gilberto Colangelo
We derive the renormalization group equations for a generic nonrenormalizable theory. We show that the equations allow one to derive the structure of the leading divergences at any…
The anomalous magnetic moment of the muon: a theoretical introduction
Marc Knecht
These notes, based on the lectures delivered at the 2003 Schladming School of Theoretical Physics, provide an introduction to the theory of the anomalous magnetic moments of the mu…
CP Violation in B and K Decays: 2003
Andrzej J. Buras
These lectures give a brief description of CP violation in B and K meson decays with particular emphasize put on the determination of the CKM matrix. The following topics will be d…
Neutrino Physics - Theory
W. Grimus
We discuss recent developments in neutrino physics and focus, in particular, on neutrino oscillations and matter effects of three light active neutrinos. Moreover, we discuss the d…
The Vertex Including the -Meson Mass
A. Ali, A. Ya. Parkhomenko
The effective vertex function is calculated in the QCD hard-scattering approach, taking into account the -meson mass. We work in the approximation…
On the precision of the theoretical predictions for pi pi scattering
I. Caprini, G. Colangelo, J. Gasser +1
In a recent paper, Pelaez and Yndurain evaluate some of the low energy observables of pi pi scattering and obtain flat disagreement with our earlier results. The authors work with…
Electromagnetic corrections in hadronic processes
J. Gasser, A. Rusetsky, I. Scimemi
In quantum field theory, the splitting of the Hamiltonian into a strong and an electromagnetic part cannot be performed in a unique manner. We propose a convention for disentanglin…
An Analysis of the Inclusive Decay and Constraints on the -Meson Distribution Amplitudes
A. Ali, A. Ya. Parkhomenko
We calculate the -meson energy spectrum in the decay in the leading-order perturbative QCD in the static quark limit for the Ort…
Absorption of solar radiation by solar neutrinos
G. Duplancic, P. Minkowski, J. Trampetic
We calculate the absorption probability of photons radiated from the surface of the Sun by a left-handed neutrino with definite mass and a typical momentum for which we choose |p_1…
Fermionic NNLL corrections to b -> s γ
Kay Bieri, Christoph Greub, Matthias Steinhauser
In this paper we take the first step towards a complete next-to-next-to-leading logarithmic (NNLL) calculation of the inclusive decay rate for . We consider the virtual…
HadAtom02
L. Afanasyev, A. Lanaro, J. Schacher
These are the proceedings of the workshop "HadAtom02", held at the CERN, October 14 - 15, 2002. The main topic of the workshop concerned the physics of hadronic atoms and in this c…