Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Precision test of the SM with Kl2 and Kl3 decays at KLOE   Kaon decay studies seeking new-physics (NP) effects in leptonic (K_l2) or
semileptonic (K_l3) decays are discussed.
  A unitarity test of the first row of the CKM mixing matrix is obtained from
the KLOE precision measurements of Kl3 widths for K^+-, K_L, and (unique to
KLOE) K_S, complemented with the absolute branching ratio for the K_mu2 decay.
  KLOE results lead to constraints for NP models and can probe possible charged
Higgs exchange contribution in SM extensions with two Higgs doublets.
  The main focus in the present document is set on a new measurement of
R_K=Gamma(K_e2)/Gamma(K_mu2) with an accuracy at the % level, aiming at finding
evidence of deviations from the SM prediction induced by lepton-flavor
violation NP effects.

36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an