Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Precision Higgs coupling measurements at the LHC through ratios of
  production cross sections   Now that the Higgs particle has been observed by the ATLAS and CMS
experiments at the LHC, the next endeavour would be to probe its fundamental
properties and to measure its couplings to fermions and gauge bosons with the
highest possible accuracy. However, the measurements will be limited by
significant theoretical uncertainties that affect the production cross section
in the main production channels as well as by experimental systematical errors.
Following earlier work, we propose in this paper to consider ratios of Higgs
production cross sections times decay branching ratios in which most of the
theoretical uncertainties and some systematical errors, such as the ones due to
the luminosity measurement and the Higgs decay branching fractions, cancel out.
The couplings of the Higgs particle could be then probed in a way that will be
mostly limited by the statistical accuracy achievable at the LHC and accuracies
at the percent level are foreseen for some of the ratios at the end of the LHC
run. At the theoretical level, these ratios are also interesting as they do not
involve the ambiguities that affect the Higgs total decay width in new physics
scenarios. To illustrate how these ratios can be used to determine the Higgs
couplings, we perform a rough analysis of the recent ATLAS and CMS data which
shows that there is presently no significant deviation from the Standard Model
expectation.

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The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex