110 citations · 598 across the 11 of their papers we have counts for
12 papers · 1 filter
Form factors in from QCD light-cone sum rules
Christian Hambrock, Alexander Khodjamirian
The form factors of the semileptonic decay are calculated from QCD light-cone sum rules with the distribution amplitudes of dipion states. This method is valid i…
Hadronic effects and observables in decay at large recoil
Christian Hambrock, Alexander Khodjamirian, Aleksey Rusov
We calculate the amplitude of the rare flavour-changing neutral-current decay at large recoil of the pion. The nonlocal contributions in which the weak effecti…
B -> K^* Form Factors from Flavor Data to QCD and Back
Christian Hambrock, Gudrun Hiller, Stefan Schacht +1
Sufficient control of transition form factors is a vital ingredient for the precision flavor programs including the nearer term searches at the Large Hadron Collider (LHC) and the…
Exotic Heavy Quark Spectroscopy - Theory Interpretation vs Data
Christian Hambrock
An overview over recent spectroscopy results in comparison with data is given. We focus on the exotica Z_b(10610), Z_b(10650) and Y_b(10890) in the bottom sector and discuss a poss…
Hadroproduction of above Thresholds and Implications for
Ahmed Ali, Christian Hambrock, Wei Wang
Based on the non-relativistic QCD factorization scheme, we study the hadroproduction of the bottomonium states and . We argue to search for them in the final states…
Light-Cone Distribution Amplitudes of the Ground State Bottom Baryons in HQET
A. Ali, C. Hambrock, A. Ya. Parkhomenko +1
We provide the definition of the complete set of light-cone distribution amplitudes (LCDAs) for the ground state heavy bottom baryons with the spin-parities J^P = 1/2^+ and J^P = 3…
Proceedings of the 2nd Workshop on Flavor Symmetries and Consequences in Accelerators and Cosmology (FLASY12)
I. de Medeiros Varzielas, C. Hambrock, G. Hiller +66
These are the proceedings of the 2nd Workshop on Flavor Symmetries and Consequences in Accelerators and Cosmology, held 30 June 2012 - 4 July 2012, Dortmund, Germany.
Extracting Form Factors from Data
Christian Hambrock, Gudrun Hiller
We extract ratios of form factors at low hadronic recoil from recent data on decays in a model-independent way. The presented method will improve in…
Tetraquark Interpretation of the Charged Bottomonium-like states Z_b^+-(10610) and Z_b^+-(10650) and Implications
Ahmed Ali, Christian Hambrock, Wei Wang
We present a tetraquark interpretation of the charged bottomonium-like states Z+-_b(10610) and Z+-_b(10650), observed by the Belle collaboration in the pi+- Upsilon(nS) (n=1,2,3) a…
Tetraquark-based analysis and predictions of the cross sections and distributions for the processes e^+ e^- --> Upsilon(1S) (pi^+ pi^-, K^+ K^-, eta pi^0) near Upsilon(5S)
Ahmed Ali, Christian Hambrock, Satoshi Mishima
We calculate the cross sections and final state distributions for the processes e^+ e^- --> Upsilon(1S) (pi^+ pi^-, K^+ K^-, eta pi^0) near the Upsilon(5S) resonance based on the t…
Tetraquark interpretation of the BELLE data on the anomalous and production near the resonance
Ahmed Ali, Christian Hambrock, M. Jamil Aslam
We analyze the Belle data [K. F. Chen {\it et al.} (Belle Collaboration), Phys.\ Rev.\ Lett.\ {\bf 100}, 112001 (2008); I. Adachi {\it et al.} (Belle Collaboration), arXiv:0808.244…
A case for hidden tetraquarks based on cross section between and 11.20 GeV
Ahmed Ali, Christian Hambrock, Ishtiaq Ahmed +1
We study the spectroscopy and dominant decays of the bottomonium-like tetraquarks (bound diquarks-antidiquarks), focusing on the lowest lying P-wave states $…