Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Application of the matrix element method to Higgs boson pair production
  in the channel $\textrm{HH} \to
  \textrm{b}\bar{\textrm{b}}\textrm{W}\textrm{W}^{*}$ at the LHC   We apply the matrix element method (MEM) to the search for non-resonant Higgs
boson pair ($\textrm{HH}$) production in the channel $\textrm{HH} \to
\textrm{b}\bar{\textrm{b}}\textrm{W}\textrm{W}^{*}$ at the LHC and study the
separation between the $\textrm{HH}$ signal and the large irreducible
background, which arises from the production of top quark pairs
($\textrm{t}\bar{\textrm{t}}$). Our study focuses on events containing two
leptons (electrons or muons) in the final state. The separation between signal
and background is studied for experimental conditions characteristic for the
ATLAS and CMS experiments during LHC Run $2$, using the DELPHES fast-simulation
package. We find that the $\textrm{t}\bar{\textrm{t}}$ background can be
reduced to a level of $0.26\%$ for a signal efficiency of $35\%$.

21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph