A5088093417- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Neutrino Physics Research
- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Distributed and Parallel Computing Systems
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Cosmology and Gravitation Theories
- Theoretical and Computational Physics
- Matrix Theory and Algorithms
- Muon and positron interactions and applications
- Physics of Superconductivity and Magnetism
- Nuclear physics research studies
- graph theory and CDMA systems
- Mathematical and Theoretical Analysis
- Distributed systems and fault tolerance
- Mathematical Analysis and Transform Methods
- Thermodynamic properties of mixtures
Ludwig-Maximilians-Universität München
2014-2024
Folkwang University of the Arts
2020
University of Siegen
2020
Aix-Marseille Université
2020
Centre National de la Recherche Scientifique
2020
Centre de Physique Théorique
2020
Alexander von Humboldt Foundation
2020
Fermi National Accelerator Laboratory
1995-2020
Max Planck Institute for Physics
1993-2018
European Organization for Nuclear Research
1998-2010
We review the present status of QCD corrections to weak decays beyond leading-logarithmic approximation, including particle-antiparticle mixing and rare $\mathrm{CP}$-violating decays. After presenting basic formalism for these calculations we discuss in detail effective Hamiltonians all which next-to-leading-order are known. Subsequently, phenomenological implications calculations. The values various parameters updated, particular mass newly discovered top quark. One central issues this...
The present report documents the results of Working Group 2: B, D and K decays, workshop on Flavor in Era LHC, held at CERN from November 2005 through March 2007. With advent we will be able to probe New Physics (NP) up energy scales almost one order magnitude larger than it has been possible with accelerator facilities. While direct detection new particles main avenue establish presence NP indirect searches provide precious complementary information, since most probably not measure full...
We discuss the systematics of power counting in general effective field theories, focusing on those that are nonrenormalizable at leading order. As an illuminating example we consider chiral perturbation theory gauged under electromagnetic U(1) symmetry. This describes low-energy interactions octet pseudo-Goldstone bosons QCD with photons and has been discussed extensively literature. Peculiarities standard approach pointed out it is shown how these resolved within our scheme. The...
This report comprises the outcome of five working groups that have studied physics potential high-luminosity phase LHC (HL-LHC) and perspectives for a possible future high-energy (HE-LHC).The covered broad range topics: Standard Model measurements, studies properties ofthe Higgs boson, searches phenomena beyond Model, flavor heavy quarks leptonsand QCD matter at high density temperature.The work is prepared as an input to ongoing process updating European Strategy Particle Physics,a will be...
The rare decays $B\to K^{(*)}\ell^+\ell^-$, 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 particularly susceptible to non-standard dynamics. In addition, such framework also interesting phenomenologically since coupling rather poorly constrained by present data. characteristic features of...
In strong dynamical schemes for electroweak symmetry breaking the third generation must be treated in a special manner, owing to heavy top quark. This potentially leads new flavor physics involving members of concert with adjoining generations, potential novel effects b-flavored and charm physics. We give general discussion formulation this kind physics, abstracted largely from top-color models which we elaborate detail. identify sensitive channels such accessible current future experiments....
We use the heavy quark expansion to investigate width difference $\ensuremath{\Delta}{\ensuremath{\Gamma}}_{{B}_{s}}$ between ${B}_{s}$ mass eigenstates. The corrections of $O(\frac{{\ensuremath{\Lambda}}_{\mathrm{QCD}}}{{m}_{b}})$ and $O(\frac{{m}_{s}}{{m}_{b}})$ leading-order expression in operator product are derived estimated yield a sizable reduction leading result for by typically 30%. For completeness we also quantify small effects due penguin operators CKM-suppressed contributions....
We calculate nonperturbative ${\cal O}(\Lambda^2_{QCD}/m^2_c)$ corrections to the dilepton invariant mass spectrum and forward-backward charge asymmetry in $B\to X_se^+e^-$ decay using a heavy quark expansion approach. The method has recently been used estimate long-distance effects X_s\gamma$. generalize this analysis case of nonvanishing photon mass, $q^2\not= 0$, relevant for rare mode X_se^+e^-$. In phenomenologically interesting $q^2$ region away from $c\bar c$ resonances, approach...
This report contains the results of Workshop on CKM Unitarity Triangle, held at CERN 13-16 February 2002 to study determination matrix from available data K, D, and B physics. is a coherent document with chapters covering elements tree level decays K meson mixing global fits unitarity triangle parameters. The impact future measurements also discussed.
We investigate the total inclusive decay rate of (ground state) ${\mathit{B}}_{\mathit{c}}$ meson within framework an operator product expansion in inverse powers heavy quark masses and subsequent matching onto nonrelativistic QCD. The is organized as a series strong coupling velocities ${\mathit{B}}_{\mathit{c}}$, reflecting nature heavy-heavy bound state. In this aspect character differs from more familiar case heavy-light mesons. incorporates systematically corrections to leading b-...