Technical note Open Access
Bevilacqua, G.; Hartanto, H. B.; Kraus, M.; Worek, M.
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <datafield tag="650" ind1="1" ind2="7"> <subfield code="a">cc-by</subfield> <subfield code="2">opendefinition.org</subfield> </datafield> <datafield tag="653" ind1=" " ind2=" "> <subfield code="a">Next-to-leading order</subfield> </datafield> <datafield tag="653" ind1=" " ind2=" "> <subfield code="a">NLO</subfield> </datafield> <datafield tag="653" ind1=" " ind2=" "> <subfield code="a">Large Hadron Collider</subfield> </datafield> <datafield tag="653" ind1=" " ind2=" "> <subfield code="a">LHC</subfield> </datafield> <datafield tag="653" ind1=" " ind2=" "> <subfield code="a">INFN-15-07-LNF</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a"><p>We present a complete description of top quark pair production in association with a jet in the dilepton channel. Our calculation is accurate to next-to-leading order in QCD (NLO) and includes all non-resonant diagrams, interferences and off-shell effects of the top quark. Moreover, non-resonant and off-shell effects due to the finite W gauge boson width are taken into account. This calculation constitutes the first fully realistic NLO computation for top quark pair production with a finalstate jet in hadronic collisions. Numerical results for differential distributions as well as total cross sections are presented for the Large Hadron Collider (LHC) at 8 TeV. With our inclusive cuts, NLO predictions reduce the unphysical scale dependence by more than a factor of 3 and lower the total rate by about 13% compared to leading order QCD (LO) predictions. In addition, the size of the top quark off-shell effects is estimated to be below 2%.</p></subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">publication</subfield> <subfield code="b">technicalnote</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-infn</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">2015-09-30</subfield> </datafield> <controlfield tag="005">20220829165836.0</controlfield> <datafield tag="041" ind1=" " ind2=" "> <subfield code="a">eng</subfield> </datafield> <controlfield tag="001">76810</controlfield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Hartanto, H. B.</subfield> <subfield code="u">Institut f¨ur Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, D-52056 Aachen, Germany</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Kraus, M.</subfield> <subfield code="u">Institut f¨ur Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, D-52056 Aachen, Germany</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Worek, M.</subfield> <subfield code="u">Institut f¨ur Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, D-52056 Aachen, Germany</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="a">Bevilacqua, G.</subfield> <subfield code="u">INFN-Laboratori Nazionali di Frascati Via E. Fermi 40, Frascati, Italy</subfield> </datafield> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Top Quark Pair Production in Association with a Jet with NLO QCD Off-Shell Effects at the Large Hadron Collider</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="s">308979</subfield> <subfield code="u">https://www.openaccessrepository.it/record/76810/files/top-quark-pair-production-in-association-with-a-jet-with-nlo-qcd-off-shell-effects-at-the-large-hadron-collider_.._Note_INFN_INFN-15-07-LNF.pdf</subfield> <subfield code="z">md5:2a676024585e0b7dbba6713f7ca8af3f</subfield> </datafield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="u">https://creativecommons.org/licenses/by/4.0/</subfield> <subfield code="a">Creative Commons Attribution 4.0</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.15161/oar.it/76810</subfield> <subfield code="2">doi</subfield> </datafield> <datafield tag="773" ind1=" " ind2=" "> <subfield code="a">10.15161/oar.it/76809</subfield> <subfield code="i">isVersionOf</subfield> <subfield code="n">doi</subfield> </datafield> </record>
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