NNLO vertex corrections to non-leptonic B decays: Tree amplitudes (2009)
Beneke, M., Huber, T., Li, Xin-Qiang
The colour-suppressed tree amplitude in non-leptonic B decays is particularly sensitive to perturbative and non-perturbative corrections. We calculate the two-loop (NNLO) vertex corrections to the...
Flavor Physics in the Quark Sector (2009)
Antonelli, M, Asner, D M, Bauer, D, Becher, T, Beneke, M, Bevan, A J, ...
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor.In this time frame, measurements and the theoretical...
Flavor Physics in the Quark Sector (2009)
Antonelli, M., Asner, D. M., Bauer, D., Becher, T., Beneke, M., Bevan, A. J., ...
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor.In this time frame, measurements and the theoretical...
Beneke, M., Falgari, P., Schwinn, C.
We present a factorization formula for the production of pairs of heavy coloured particles in hadronic collisions at the production threshold, which forms the basis for the resummation of soft gluons...
Penguins with Charm and Quark-Hadron Duality (2009)
Beneke, M, Buchalla, G, Neubert, M, Sachrajda, C T
The integrated branching fraction of the process $B\to X_s l^+l^-$ is dominated by resonance background from narrow charmonium states, such as $B\to X_s\psi\to X_s l^+l^-$, which exceeds the...
Penguins with Charm and Quark-Hadron Duality (2009)
Beneke, M., Buchalla, G., Neubert, M., Sachrajda, C. T.
The integrated branching fraction of the process $B\to X_s l^+l^-$ is dominated by resonance background from narrow charmonium states, such as $B\to X_s\psi\to X_s l^+l^-$, which exceeds the...
Hadronic B decays in the MSSM with large tan$\beta$ (2009)
Beneke, M, Li, Xin-Qiang, Vernazza, L
We present an analysis of non-leptonic B decays in the minimally flavour-violating MSSM with large tan(beta). We relate the Wilson coefficients of the relevant hadronic scalar operators to leptonic...
Hadronic B decays in the MSSM with large tan(beta) (2009)
Beneke, M., Li, Xin-Qiang, Vernazza, L.
We present an analysis of non-leptonic B decays in the minimally flavour-violating MSSM with large tan(beta). We relate the Wilson coefficients of the relevant hadronic scalar operators to leptonic...
Higgs couplings in the MSSM at large tan(beta) (2009)
Beneke, M., Ruiz-Femenia, P., Spinrath, M.
We consider tan(beta)-enhanced quantum effects in the minimal supersymmetric standard model (MSSM) including those from the Higgs sector. To this end, we match the MSSM to an effective two-Higgs...
Effect of postreatment on the corrosion behaviour of tartaric-sulphuric anodic films (2009)
Garcia-Rubio, M., Lara, M.P. De, Ocon, P., Diekhoff, S., Beneke, M., Lavia, A., ...
Unclad and clad AA2024 T3 specimens were anodised in a chromium-free tartaric-sulphuric acid bath (TSA) and subsequently postreated by different processes including impregnation in a cold,...
Buchalla, G., Komatsubara, T. K., Muheim, F., Silvestrini, L., Artuso, M., Asner, D. M., ...
The present report documents the results of Working Group 2: B, D and K decays, of the workshop on Flavor in the Era of the LHC, held at CERN from November 2005 through March 2007. With the advent of...
Higgs couplings in the MSSM at large tan(beta) (2008)
Beneke, M., Ruiz-Femenia, P., Spinrath, M.
We consider tan(beta)-enhanced quantum effects in the minimal supersymmetric standard model (MSSM) including those from the Higgs sector. To this end, we match the MSSM to an effective two-Higgs...
B -> chi_cJ K decays revisited (2008)
We demonstrate that exclusive B decays to P-wave charmonium factorize in the non-relativistic limit provided that colour-octet contributions are taken into account, and estimate the branching...
Beneke, M., Huber, T., Li, Xin-Qiang
We calculate the two-loop QCD correction to the form factors of on-shell b-quark decay to an energetic massless quark, which constitutes the last missing piece required for an O(alpha_s^2)...
Dominant NNLO corrections to four-fermion production near the W-pair production threshold (2008)
Actis, S., Beneke, M., Falgari, P., Schwinn, C.
We calculate the parametrically dominant next-to-next-to-leading order corrections to four-fermion production e^- e^+ -> mu^- nubar_mu u dbar + X at centre-of-mass energies near the W-pair production...
Ultrasoft contribution to heavy-quark pair production near threshold (2008)
We compute the third-order correction to the heavy-quark current correlation function due to the emission and absorption of an ultrasoft gluon. Our result supplies a missing contribution to top-quark...
NNNLO results on top-quark pair production near threshold (2008)
Beneke, M., Kiyo, Y., Schuller, K.
We present new results on the NNNLO top-antitop production cross section near threshold from potential and ultrasoft gluon corrections. The new non-logarithmic third-order terms are in the 10% range...
Buchalla, G., Komatsubara, T. K., Muheim, F., Silvestrini, L., Artuso, M., Asner, D. M., ...
With the advent of the LHC, we will be able to probe New Physics (NP) up to energy scales almost one order of magnitude larger than it has been possible with present accelerator facilities. While...
Large-order Behaviour due to Ultraviolet Renormalons in QCD (2007)
Beneke Theory, Renormalons In Qcd, M. Beneke, V. M. Braun, N. Kivel
Ultraviolet renormalons, contrary to their infrared counterparts, lead to a universal contribution to the large-order behaviour of perturbative expansions in QCD. In this letter, we determine nature...
Inelastic Photoproduction of Polarised (2007)
M. Beneke, M. Krämer, M. Kr Amer, M. Vanttinen
The comparison of J=/ photoproduction data in the inelastic region with theoretical predictions based on the NRQCD approach has remained somewhat ambiguous and controversial, in particular at large...
On the Infrared Sensitivity of the Longitudinal Cross Section in (2007)
Gamma Annihilation, M. Beneke, V. M. Braun, L. Magnea
this paper we concentrate on the longitudinal cross section. It is given as a convolution of a parton fragmentation function D
NNNLO correction to the toponium and bottomonium wave-functions at the origin (2007)
Beneke, M., Kiyo, Y., Penin, A., Schuller, K.
We report new results of the NNNLO correction to the S-wave quarkonium wave-functions at the origin, which also provide an estimate of the resonance cross section in t-tbar threshold production at...
Ultrasoft contribution to quarkonium production and annihilation (2007)
Beneke, M., Kiyo, Y., Penin, A. A.
We compute the third-order correction to electromagnetic S-wave quarkonium production and annihilation rates due to the emission and absorption of an ultrasoft gluon. Our result completes the...
Third-order non-Coulomb correction to the S-wave quarkonium wave functions at the origin (2007)
Beneke, M., Kiyo, Y., Schuller, K.
We compute the third-order correction to the S-wave quarkonium wave functions |\psi_n(0)|^2 at the origin from non-Coulomb potentials in the effective non-relativistic Lagrangian. Together with...
I briefly summarize the factorization approach to hadronic B decays emphasizing theoretical results that have become available recently. The discussion of its application to data is abridged, and...
Spectator scattering at NLO in non-leptonic B decays: Tree amplitudes (2005)
We compute the 1-loop (alpha_s^2) correction to hard spectator scattering in non-leptonic B decay tree amplitudes. This forms part of the NNLO contribution to the QCD factorization formula for...
Enhanced electroweak penguin amplitude in B-->VV decays (2005)
Beneke, M., Rohrer, J., Yang, D.
We discuss a novel electromagnetic penguin contribution to the transverse helicity amplitudes in B decays to two vector mesons, which is enhanced by two powers of mB/Lambda relative to the standard...
Beneke, M., Kiyo, Y., Schuller, K.
We obtain analytic expressions for the third-order corrections due to the strong interaction Coulomb potential to the S-wave Green function, energy levels and wave functions at the origin for...
Power corrections to B\to X_u l \nu (X_s\gamma) decay spectra in the "shape-function" region (2004)
Beneke, M., Campanario, F., Mannel, T., Pecjak, B. D.
Using soft-collinear effective theory (SCET), we examine the 1/m_b corrections to the factorization formulas for inclusive semi-leptonic B decays in the endpoint region, where the hadronic final...
Towards pair production near threshold with unstable particle effective theory (2004)
Beneke, M., Kauer, N., Signer, A., Zanderighi, G.
We illustrate the use of effective theory techniques to describe processes involving unstable particles close to resonance. First, we present the main ideas in the context of a scalar resonance in an...
The CKM Matrix and the unitary triangle (2003)
Battaglia, M., Buras, A.J., Gambino, P., Stocchi, A., Abbaneo, D., Ali, A., ...
This report contains the results of the Workshop on the CKM Unitarity Triangle, held at CERN on 13-16 February 2002 to study the determination of the CKM matrix from the available data of K, D, and B...
CP asymmetry in flavour-specific B decays beyond leading logarithms (2003)
Beneke, M., Buchalla, G., Lenz, A., Nierste, U.
We compute next-to-leading order QCD corrections to the CP asymmetry a_{fs} = Im(Gamma_{12}/M_{12}) in flavour-specific B_{d,s} decays such as B_d->X l nu or B_s->D^-_s pi^+. The corrections reduce...
Conceptual aspects of QCD factorization in hadronic B decays (2000)
I review the meaning of ``QCD factorization'' in hadronic two-body B decays and then discuss recent results of theoretical (rather than phenomenological) nature: the proof of factorization at two...
Top-Antitop Pair Production Close to Threshold Synopsis of Recent NNLO Results (2000)
Hoang, A. H., Melnikov, K., Teubner, T., Yelkhovsky, A., Yakovlev, Oleg, Beneke, M., ...
Using non-relativistic effective theories, new next-to-next-to-leading order (NNLO) QCD corrections to the total production cross section at the Linear Collider have been calculated recently. In this...
The bottom $\bar{\rm MS}$ quark mass from sum rules at next-to-next-to-leading order (1999)
We determine the bottom $\bar{\rm MS}$ quark mass $\bar{m}_b$ and the quark mass in the potential subtraction scheme from moments of the $b\bar{b}$ production cross section and from the mass of the...
M. Beneke, V. M. Braun, N. Kivel
: We obtain the operator product expansion of the self-energy in the O(N) non-linear oe-model to all orders in the coupling and the large momentum, and to next-to-leading order in 1=N . In the light...
Two-loop Correction to the Leptonic Decay of Quarkonium (1997)
Beneke, M., Signer, A., Smirnov, V. A.
Applying asymptotic expansions at threshold, we compute the two-loop QCD correction to the short-distance coefficient that governs the leptonic decay $\psi\to l^+ l^-$ of a S-wave quarkonium state...
Inelastic photoproduction of polarised $J/\psi$ (1997)
Beneke, M., Krämer, M., Vänttinen, M.
The comparison of $J/\psi$ photoproduction data in the inelastic region with theoretical predictions based on the NRQCD approach has remained somewhat ambiguous and controversial, in particular at...
Two-loop Correction to the Leptonic Decay (1997)
Of Quarkonium, M. Beneke, A. Signer, V. A. Smirnov
Applying asymptotic expansions at threshold, we compute the two-loop QCD correction to the short-distance coe cient that governs the leptonic decay! l + l of a S-wave quarkonium state and discuss its...
Direct J/psi and psi' Polarization and Cross Sections at the Tevatron (1996)
Transverse polarization of ${}^3 S_1$ charmonium states, produced directly in $p\bar{p}$ collisions at asymptotically large transverse momentum p_t, has emerged as the most prominent test of color...
Width Difference in the $B_s-\bar{B_s}$ System (1996)
Beneke, M., Buchalla, G., Dunietz, I.
We use the heavy quark expansion to investigate the width difference $\Delta\Gamma_{B_s}$ between the $B_s$ mass eigenstates. The corrections of ${\cal O}(\Lambda_{QCD}/m_b)$ and ${\cal O}(m_s/m_b)$...
The $B_c$ Meson Lifetime (1996)
We investigate the total inclusive decay rate of the (ground state) $B_c$ meson within the framework of an operator product expansion in inverse powers of the heavy quark masses and subsequent...
We study the asymptotic behaviour of the perturbative series in the heavy quark effective theory (HQET) using the 1/N[function of (italic small f)] expansion. We find that this theory suffers from an...