Publications (16)
Transition form factors $γ^*γ\toη$ and $γ^*γ\toη'$ in QCD
S. S. Agaev, V. M. Braun, N. Offen +2
We update the theoretical framework for the QCD calculation of transition form factors $γ^*γ\toη$ and $γ^*γ\toη'$ at large photon virtualities including full next-to-leading…
The Belle II Physics Book
E. Kou, P. Urquijo, W. Altmannshofer +524
We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB collider. Belle II collected its first collisions in 2018, and is ex…
Flavor Physics in the Quark Sector
M. Antonelli, D. M. Asner, D. Bauer +137
One of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor and measurements and theoretical interpretations of their res…
Evolution equation for the higher-twist B-meson distribution amplitude
V. M. Braun, A. N. Manashov, N. Offen
We find that the evolution equation for the three-particle quark-gluon B-meson light-cone distribution amplitude (DA) of subleading twist is completely integrable in the large $N_c…
Electroproduction of the nucleon resonance in QCD
I. V. Anikin, V. M. Braun, N. Offen
Following the 12 GeV upgrade, a dedicated experiment is planned with the Hall B CLAS12 detector at Jefferson Lab, with the aim to study electroproduction of nucleon resonances at h…
Light-Cone Sum Rules for the Form Factor
N. Offen, F. A. Porkert, A. Schafer
We present an improved light-cone sum rule analysis of the decay form factors of and into and and argue that these decays offer a very promissing possi…
Semileptonic charm decays and from QCD Light-Cone Sum Rules
A. Khodjamirian, Ch. Klein, Th. Mannel +1
We present a new calculation of the and form factors from QCD light-cone sum rules. The scheme for the -quark mass is used and the input param…
Width and from QCD Light-Cone Sum Rules
A. Khodjamirian, Th. Mannel, N. Offen +1
We employ the form factors obtained from QCD light-cone sum rules and calculate the width () in units of , integrated over the…
NLO light-cone sum rules for the nucleon electromagnetic form factors
I. V. Anikin, V. M. Braun, N. Offen
We study the electromagnetic nucleon form factors within the approach based on light-cone sum rules. We include the next-to-leading-order corrections for the contributions of twist…
Light Cone Sum Rules for the pi0-gamma*-gamma Form Factor Revisited
S. S. Agaev, V. M. Braun, N. Offen +1
We provide a theoretical update of the calculations of the pi0-gamma*-gamma form factor in the LCSR framework, including up to six polynomials in the conformal expansion of the pio…
Light-cone sum rules for form factors revisited
G. Duplancic, A. Khodjamirian, Th. Mannel +2
We reconsider and update the QCD light-cone sum rules for form factors. The gluon radiative corrections to the twist-2 and twist-3 terms in the correlation functions are…
Renormalization of B-meson distribution amplitudes
S. Descotes-Genon, N. Offen
We summarize a recent calculation of the evolution kernels of the two-particle B-meson distribution amplitudes and taking into account three-particle contributions. I…
Nucleon Form Factors and Distribution Amplitudes in QCD
I. V. Anikin, V. M. Braun, N. Offen
We derive light-cone sum rules for the electromagnetic nucleon form factors including the next-to-leading-order corrections for the contribution of twist-three and twist-four opera…
BELLE Data on the Form Factor: A Game Changer?
S. S. Agaev, V. M. Braun, N. Offen +1
We extend our analysis of the $Ï^0γ^*γ$ form factor by including a comparison with the new BELLE data. The necessity of new precision measurements in a broad interval of momentu…
Three-particle contributions to the renormalisation of B-meson light-cone distribution amplitudes
S. Descotes-Genon, N. Offen
We study light-cone distribution amplitudes of heavy-light systems, such as a B-meson. By an explicit computation, we determine how two-parton distribution amplitudes mix with thre…
Axial form factor of the nucleon at large momentum transfers
I. V. Anikin, V. M. Braun, N. Offen
Motivated by the emerging possibilities to study threshold pion electroproduction at large momentum transfers at Jefferson Laboratory following the 12 GeV upgrade, we provide a sho…