Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Decay B --> K l^+ l^- at Low Hadronic Recoil and Model-Independent
  Delta B = 1 Constraints   We study the decay B --> K l^+ l^- for l = e,mu,tau with a softly recoiling
kaon, that is, for high dilepton invariant masses sqrt{q^2} of the order of the
b-quark mass. This kinematic region can be treated within an operator product
expansion and simplified using heavy quark symmetry, leading to systematic
predictions for heavy-to-light processes such as B --> K^(*) l^+ l^-. We show
that the decay rates of both B --> K^* l^+ l^- and B --> K l^+ l^- decays into
light leptons depend on a common combination of short-distance coefficients.
The corresponding CP-asymmetries are hence identical. Furthermore we present
low recoil predictions for B --> K l^+ l^- observables, including the flat term
in the angular distribution which becomes sizable for taus. We work out
model-independently the constraints on Delta B = 1 operators using the most
recent data from the experiments BaBar, Belle, CDF and LHCb. For constructive
interference with the standard model, generic new physics is pushed up to
scales above 44 TeV at 95% CL. Assuming none or small CP-violation we obtain a
lower bound on the position of the zero of the forward-backward asymmetry of
B^0 --> K^*0 l^+ l^- decays as q_0^2 > 1.7 GeV^2, which improves to q_0^2 > 2.6
GeV^2 for a standard model-like sign b --> s gamma amplitude.

15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math