Charmonium Spectroscopy (X,Y,Z) at the B Factories

Since 2003 several states in the charmonium mass region were discovered. While in the conventional c c-bar spectrum some states are missing, the number of states observed up to now is larger than empty spaces in the c c-bar spectrum. This, together with other difficulties to explain observed states as a c c-bar mesons triggered discussions on a possible exotic interpretations. In this proceedings we present current experimental status from B-factories of the so called X, Y and Z states.Comment: Prepared for Beauty 2009 conference, Heidelberg, German

Tevatron Experimental Issues at High Luminosities

In this paper we describe the detector components, triggers and analysis techniques for flavor physics at the Tevatron experiments CDF and DO. As Tevatron performs very well and runs at higher luminosities regularly we also touch issues related to it and efforts to improve detectors and triggers for such running.Comment: Prepared for Beauty 2009 conference, Heidelberg, German

B Physics (Experiment)

In past few years the flavor physics made important transition from the work on confirmation the standard model of particle physics to the phase of search for effects of a new physics beyond standard model. In this paper we review current state of the physics of b-hadrons with emphasis on results with a sensitivity to new physics.Comment: To appear in the proceedings of the "Physics at the LHC 2010" conference. Added few missing reference

Angular distribution of polarised Λb\Lambda_b baryons decaying to Λℓ+ℓ−\Lambda \ell^+\ell^-

Rare $b \to s\ell^+\ell^-$ flavour-changing-neutral-current processes provide important tests of the Standard Model of particle physics. Angular observables in exclusive $b \to s\ell^+\ell^-$ processes can be particularly powerful as they allow hadronic uncertainties to be controlled. Amongst the exclusive processes that have been studied by experiments, the decay $\Lambda_b\to \Lambda\ell^+\ell^-$ is unique in that the $\Lambda_b$ baryon can be produced polarised. In this paper, we derive an expression for the angular distribution of the $\Lambda_b\to \Lambda\ell^+\ell^-$ decay for the case where the $\Lambda_b$ baryon is produced polarised. This extends the number of angular observables in this decay from 10 to 34. Standard Model expectations for the new observables are provided and the sensitivity of the observables is explored under a variety of new physics models. At low-hadronic recoil, four of the new observables have a new short distance dependence that is absent in the unpolarised case. The remaining observables depend on the same short distance contributions as the unpolarised observables, but with different dependence on hadronic form-factors. These relations provide possibilities for novel tests of the SM that could be carried out with the data that will become available at the LHC or a future $e^+e^-$ collider

Summary of WG4: 'Lifetime, Mixing and Weak Mixing Phase in Charm and Beauty, Including Direct Determination of V_tx

We present the summary of the Working Group on lifetimes, mixing and weak mixing phases in charm and beauty mesons at the CKM 2010 workshop. In the past year or so good progress was achieved on both experimental and theoretical sides. While this yields improvement in our understanding of neutral meson mixing, further work is necessary to achieve the highest possible precision in order to investigate current hints for deviations between experiment and standard model predictions. With the recent LHC startup we see bright prospects for the near term future for huge improvements

D and B meson spectroscopy, new states, baryons at the Tevatron

We review recent results in heavy quark hadron spectroscopy at the Tevatron. With increasing data samples, the Tevatron experiments start to uncover information on the spectroscopy of b-hadrons. Most important are the first observations of the narrow B**{sub s}{sup 0} as well as {Sigma}{sub b}{sup {+-}}, {Sigma}*{sub b}{sup {+-}} and {Xi}{sub b}{sup -} baryons. In addition we present updated results on the narrow B**{sup 0} and B{sub c} mesons

Angular distribution of Λ b 0 → p K − ℓ + ℓ − decays comprising Λ resonances with spin ≤ 5 / 2

This paper describes the angular distribution of Λb0→Λ→pK−ℓ+ℓ− decays. A full expression is given for the case of multiple interfering spin-states with spin ≤52. This distribution is relevant for future measurements of Λb0→pK−ℓ+ℓ− decays, where different states cannot easily be separated based on their mass alone. New observables arise when considering spin-52 states as well as interference between states. An exploration of their behaviour for a variety of beyond the Standard Model scenarios shows that some of these observables exhibit interesting sensitivity to the Wilson coefficients involved in b → sℓ+ℓ− transitions. Others are insensitive to the Wilson coefficients and can be used to verify the description of Λb0→Λ form-factors. A basis of weighting functions that can be used to determine all of the angular observables described in this paper in a moment analysis of the experimental data is also provided

Tevatron Experimental Issues at High Luminosities

In this paper we describe the detector components, triggers and analysis techniques for flavor physics at the Tevatron experiments CDF and D0. As Tevatron performs very well and runs at higher luminosities regularly we also touch issues related to it and efforts to improve detectors and triggers for such running