Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- California Institute of TechnologyUS2.6k papers
- Centre National de la Recherche ScientifiqueFR2k papers
- Massachusetts Institute of TechnologyUS1.9k papers
- University of FloridaUS1.8k papers
- Carnegie Mellon UniversityUS1.7k papers
- Princeton UniversityUS1.7k papers
- University of RochesterUS1.7k papers
- Purdue University West LafayetteUS1.6k papers
- Johns Hopkins UniversityUS1.6k papers
- University of Maryland, College ParkUS1.6k papers
- The Ohio State UniversityUS1.6k papers
- University of California, Santa BarbaraUS1.6k papers
22 papers · 2 filters
Lectures on the Theory of Non-leptonic B Decays
Matthias Neubert
These notes provide a pedagogical introduction to the theory of non-leptonic heavy-meson decays recently proposed by Beneke, Buchalla, Sachrajda and myself. We provide a rigorous b…
Effects from the charm scale in K+ -> pi+ nu nubar
Adam F. Falk, Adam Lewandowski, Alexey A. Petrov
We consider contributions to the rare decay K+ -> pi+ nu nubar which become nonlocal at the charm scale. Compared to the leading term, such amplitudes are suppressed by two powers…
Two-Loop Renormalization of Heavy--Light Currents at Order 1/m_Q in the Heavy-Quark Expansion
Thomas Becher, Matthias Neubert, Alexey A. Petrov
We present exact results, at next-to-leading order in renormalization-group improved perturbation theory, for the Wilson coefficients appearing at order 1/m_Q in the heavy-quark ex…
New Value of M_mu/M_e from Muonium Hyperfine Splitting
Richard Hill
The complete contribution to the muonium hyperfine splitting of relative order alpha^3(m_e/m_mu)ln(alpha) is calculated. The result amounts to 0.013 kHZ, much smaller than suggeste…
Lorentz Invariant Baryon CHPT
T. Becher
Using the example of the elastic -amplitude, we discuss the low energy expansion of QCD amplitudes in the sector with baryon number one. We show that the chiral expansion of th…
Enhanced Gluino Box Contribution to epsilon'/epsilon in SUSY
Matthias Neubert
We show that in supersymmetric extensions of the Standard Model gluino box diagrams can yield a large CP-violating Delta(I)=3/2 contribution to s->d+q(bar)+q flavor-changing neutra…
QCD Factorization and CP Asymmetries in Hadronic B Decays
Matthias Neubert
We review recent advances in the theory of strong-interaction effects and final-state interactions in hadronic weak decays of heavy mesons. In the heavy-quark limit, the amplitudes…
Neutrino Physics with Small Extra Dimensions
Matthias Neubert
We study neutrino physics in the context of the localized gravity model with non-factorizable metric proposed by Randall and Sundrum. Identifying the right-handed neutrino with a b…
Spectrum and decay matrix elements of B and D-mesons in lattice NRQCD
Joachim Hein
We discuss recent results on the excitation spectra of B and D-mesons obtained in the framework of non-relativistic lattice QCD in the quenched approximation. The results allow for…
Width difference in the D0-anti-D0 system
Alexey A Petrov
The motivation most often cited in searches for D0-anti-D0 mixing lies with the possibility of observing a signal from new physics which dominates that from the Standard Model. We…
Applications of QCD Factorization in Hadronic B Decays
Matthias Neubert
We review recent advances in the theory of strong-interaction effects and final-state interactions in hadronic weak decays of heavy mesons. In the heavy-quark limit, the amplitudes…
Top quark mass definition and top quark pair production near threshold at the NLC
Oleg Yakovlev, Stefan Groote
We suggest an infrared-insensitive quark mass, defined by subtracting the soft part of the quark self energy from the pole mass. We demonstrate the deep relation of this definition…
Nonperturbative Techniques for QED Bound States
Richard Hill
Advantages of using a low-energy effective theory to study bound state properties are briefly discussed, and a nonperturbative implementation of such an effective theory is describ…
Implications of a Low sin(2 beta): A Strategy for Exploring New Flavor Physics
Alexander L. Kagan, Matthias Neubert
We explore the would-be consequences of a low value of the CP-violating phase . The importance of a reference triangle obtained from measurements that are independent…
QCD factorization for decays
M. Beneke, G. Buchalla, M. Neubert +1
We examine some consequences of the QCD factorization approach to non-leptonic B decays into and final states, including a set of enhanced power corrections. Among the ro…
Towards a Theory of Hadronic B Decays
Matthias Neubert
We review recent advances in the theory of strong-interaction effects and final-state interactions in hadronic weak decays of heavy mesons. In the heavy-quark limit, the amplitudes…
QCD factorization for exclusive, non-leptonic B meson decays: General arguments and the case of heavy-light final states
M. Beneke, G. Buchalla, M. Neubert +1
We provide a rigorous basis for factorization for a large class of non-leptonic two-body -meson decays in the heavy-quark limit. The factorization formula incorporates elements…
On the Inclusive Determination of V_{ub} from the Lepton Invariant Mass Spectrum
Matthias Neubert
Bauer, Ligeti and Luke have recently proposed a new method for measuring |V_{ub}| in inclusive semileptonic B decays, using a cut on the lepton invariant mass to discriminate again…
Order (alpha^2 Gamma, alpha^3 Gamma) Binding Effects in Orthopositronium Decay
Richard J. Hill, G. Peter Lepage
We present a new, simplified analysis of the low-energy electron-positron interaction, and use the resulting effective theory to calculate the binding effects that contribute to th…
Scaling of the B and D meson spectrum in lattice QCD
J. Hein, S. Collins, C. T. H. Davies +5
We give results for the and the meson spectrum using NRQCD on the lattice in the quenched approximation. The masses of radially and orbitally excited states are calculated…
Introduction to B Physics
Matthias Neubert
These lectures provide an introduction to various topics in heavy-flavor physics. We review the theory and phenomenology of heavy-quark symmetry, exclusive weak decays of meson…
Neutrino masses and mixings in non-factorizable geometry
Yuval Grossman, Matthias Neubert
We study bulk fermion fields in the localized gravity model with non-factorizable metric recently proposed by Randall and Sundrum, and Gogberashvili. In addition to a tower of weak…