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Author |
Campanario, F.; Kerner, M.; Ninh, L.D.; Zeppenfeld, D. |
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Title |
Next-to-leading order QCD corrections to Wgamma production in association with two jets |
Type |
Journal Article |
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Year |
2014 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
74 |
Issue |
5 |
Pages |
2882 - 9pp |
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Keywords |
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Abstract |
The QCD-induced production channels in association with two jets are computed at next-to-leading order QCD accuracy. The W bosons decay leptonically and full off-shell and finite width effects as well as spin correlations are taken into account. These processes are important backgrounds to beyond Standard Model physics searches and also relevant to test the nature of the quartic gauge couplings of the Standard Model. The next-to-leading order corrections reduce the scale uncertainty significantly and show a non-trivial phase space dependence. Our code will be publicly available as part of the parton level Monte Carlo program VBFNLO. |
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Address |
[Campanario, Francisco] Univ Valencia, CSIC, IFIC, Div Theory, Valencia 46980, Spain, Email: francisco.campanario@ific.uv.es; |
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Springer |
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English |
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ISSN  |
1434-6044 |
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Conference |
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Notes |
WOS:000340092900001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1888 |
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Author |
Campanario, F.; Kerner, M.; Ninh, L.D.; Zeppenfeld, D. |
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Title |
Z gamma production in association with two jets at next-to-leading order QCD |
Type |
Journal Article |
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Year |
2014 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
74 |
Issue |
9 |
Pages |
3085 - 7pp |
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Keywords |
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Abstract |
Next-to-leading order QCD corrections to the QCD-induced pp -> l(+)l(-)gamma j j + X and pp -> <(nu)lover bar>(l)nu(l)gamma(jj) + X processes are presented. The latter is used to find an optimal cut to reduce the contribution of radiative photon emission off the charged leptons in the first channel. As expected, the scale uncertainties are significantly reduced at NLO and the QCD corrections are phase-space dependent and important for precise measurements at the LHC. |
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Address |
[Campanario, Francisco] Univ Valencia, CSIC, IFIC, Div Theory, Valencia 46980, Spain, Email: francisco.campanario@ific.uv.es; |
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Springer |
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English |
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Series Volume |
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ISSN |
1434-6044 |
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Conference |
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Notes |
WOS:000350143900001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2123 |
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Author |
Baglio, J.; Campanario, F.; Glaus, S.; Muhlleitner, M.; Spira, M.; Streicher, J. |
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Title |
Gluon fusion into Higgs pairs at NLO QCD and the top mass scheme |
Type |
Journal Article |
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Year |
2019 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
79 |
Issue |
6 |
Pages |
459 - 9pp |
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Keywords |
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Abstract |
We present the calculation of the full next-to-leading order (NLO) QCD corrections to Higgs boson pair production via gluon fusion at the LHC, including the exact top-mass dependence in the two-loop virtual and one-loop real corrections. This is the first independent cross-check of the NLO QCD corrections presented in the literature before. Our calculation relies on numerical integrations of Feynman integrals, stabilised with integration-by-parts and a Richardson extrapolation to the narrow width approximation. We present results for the total cross section as well as for the invariant Higgs-pair-mass distribution at the LHC, including for the first time a study of the uncertainty due to the scheme and scale choice for the top mass in the loops. |
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Address |
[Baglio, J.; Streicher, J.] Eberhard Karls Univ Tubingen, Inst Theoret Phys, Morgenstelle 14, D-72076 Tubingen, Germany, Email: julien.baglio@uni-tuebingen.de; |
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Springer |
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English |
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Series Volume |
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Edition |
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ISSN |
1434-6044 |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000469782000003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
4037 |
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Author |
Baglio, J.; Campanario, F.; Glaus, S.; Mühlleitner, M.; Ronca, J.; Spira, M. |
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Title |
Full NLO QCD predictions for Higgs-pair production in the 2-Higgs-doublet model |
Type |
Journal Article |
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Year |
2023 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
83 |
Issue |
9 |
Pages |
826 - 14pp |
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Keywords |
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Abstract |
After the discovery of the Higgs boson in 2012 at the CERN Large Hadron Collider (LHC), the study of its properties still leaves room for an extended Higgs sector with more than one Higgs boson. 2-Higgs doublet models (2HDMs) are well-motivated extensions of the Standard Model (SM) with five physical Higgs bosons: two CP-even states h and H, one CP-odd state A, and two charged states H-+/-. In this letter, we present the calculation of the full next-to-leading order (NLO) QCD corrections to hH and AA production at the LHC in the 2HDM at small values of the ratio of the vacuum expectation values, tan beta, including the exact top-mass dependence everywhere in the calculation. Using techniques applied in the NLO QCD SM Higgs pair production calculation, we present results for the total cross section as well as for the Higgs-pair-mass distribution at the LHC. We also provide the top-quark scale and scheme uncertainties which are found to be sizeable. |
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Address |
[Baglio, J.] CERN, Theoret Phys Dept, CH-1211 Geneva 23, Switzerland, Email: julien.baglio@cern.ch; |
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Springer |
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English |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1434-6044 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:001188035600001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
5993 |
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Author |
Bozzi, G.; Campanario, F.; Hankele, V.; Zeppenfeld, D. |
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Title |
Next-to-leading order QCD corrections to W+W-gamma and ZZ gamma production with leptonic decays |
Type |
Journal Article |
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Year |
2010 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
81 |
Issue |
9 |
Pages |
094030 - 7pp |
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Keywords |
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Abstract |
The computation of the O(alpha(s)) QCD corrections to the cross sections for W+W-gamma and ZZ gamma production in hadronic collisions is presented. We consider the case of a real photon in the final state, but include full leptonic decays of the W and Z bosons. Numerical results for the LHC and the Tevatron are obtained through a fully flexible parton level Monte Carlo program based on the structure of the VBFNLO program, allowing an easy implementation of arbitrary cuts and distributions. We show the dependence on scale variations of the integrated cross sections and provide evidence that next-to-leading order (NLO) QCD corrections strongly modify the LO predictions for observables at the LHC both in magnitude and in shape. |
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Address |
[Bozzi, G.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1550-7998 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
ISI:000278145100048 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ elepoucu @ |
Serial |
439 |
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| Permanent link to this record |
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Author |
Campanario, F.; Kubocz, M. |
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Title |
Higgs-boson production in association with three jets via gluon fusion at the LHC: Gluonic contributions |
Type |
Journal Article |
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Year |
2013 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
88 |
Issue |
5 |
Pages |
054021 - 5pp |
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Keywords |
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Abstract |
Higgs production in association with three jets via gluon fusion is an important channel for the measurement of the CP properties of the Higgs particle at the LHC. In this paper, we go beyond the heavy top effective theory approximation and include at LO the full mass dependence of the top- and bottom-quark contributions. We consider the dominant subchannel gg -> Hggg which involves the manipulation of massive rank-5 hexagon integrals. Furthermore, we present results for several differential distributions and show deviations from the effective theory as large as 100% at high p(T) for light Higgs masses. |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1550-7998 |
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Conference |
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Notes |
WOS:000324691000003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1615 |
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| Permanent link to this record |
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Author |
Campanario, F.; Kaiser, N.; Zeppenfeld, D. |
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Title |
W gamma production in vector boson fusion at NLO in QCD |
Type |
Journal Article |
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Year |
2014 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
89 |
Issue |
1 |
Pages |
014009 - 5pp |
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Keywords |
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Abstract |
The next-to-leading order QCD corrections to W-+/-gamma. production in association with two jets via vector boson fusion are calculated, including the leptonic decay of the W with full off-shell effects and spin correlations. The process lends itself to a test of quartic gauge couplings. The next-to-leading order corrections reduce the scale uncertainty significantly and show a nontrivial phase space dependence. |
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Address |
[Campanario, Francisco] Univ Valencia CSIC, IFIC, Div Theory, E-46980 Valencia, Spain, Email: francisco.campanario@ific.uv.es; |
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Publisher |
Amer Physical Soc |
Place of Publication |
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English |
Summary Language |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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ISSN |
1550-7998 |
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Conference |
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Notes |
WOS:000331841100004 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1714 |
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| Permanent link to this record |
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Author |
Campanario, F.; Kerner, M.; Ninh, L.D.; Zeppenfeld, D. |
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Title |
Next-to-leading order QCD corrections to W+W+ and W-W- production in association with two jets |
Type |
Journal Article |
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Year |
2014 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
89 |
Issue |
5 |
Pages |
054009 - 11pp |
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Keywords |
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Abstract |
We present a study of W+W+ jj and W-W-jj production including leptonic decays in hadron-hadron collisions. The full electroweak and QCD induced contributions and their interferences are calculated at leading order. We find that, for inclusive cuts, the interference effects can be large if the jets are produced with large transverse momentum where, however, the production rate is suppressed. We also discuss the vector-boson-fusion cuts and show the validity of the vector-boson-fusion approximation. The next-to-leading order QCD corrections to the QCD-induced channels are also calculated. Compared to the previous calculation, we allow the intermediate W bosons to be off shell. For on-shell W production, we obtain an excellent agreement with previous results. Our code will be publicly available as part of the parton level Monte Carlo program VBFLNO. |
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Address |
[Campanario, Francisco] Univ Valencia, CSIC, Theory Div, IFIC, E-46980 Valencia, Spain, Email: francisco.campanario@ific.uv.es; |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1550-7998 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000333103700004 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1740 |
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| Permanent link to this record |
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Author |
Campanario, F.; Roth, R.; Zeppenfeld, D. |
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Title |
QCD radiation in WH and WZ production and anomalous coupling measurements |
Type |
Journal Article |
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Year |
2015 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
91 |
Issue |
5 |
Pages |
054039 - 10pp |
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Keywords |
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Abstract |
We study QCD radiation for the WH and WZ production processes at the LHC. We identify the regions sensitive to anomalous couplings, by considering jet observables, computed at next-to-leading-order QCD with the use of the Monte Carlo program VBFNLO. Based on these observations, we propose the use of a dynamical jet veto. The dynamical jet veto avoids the problem of large logarithms depending on the veto scale, hence providing more reliable predictions and simultaneously increasing the sensitivity to anomalous coupling searches, especially in the WZ production process. |
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Address |
[Campanario, Francisco] Univ Valencia, CSIC, IFIC, Theory Div, E-46980 Paterna, Valencia, Spain, Email: francisco.campanario@ific.uv.es; |
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Publisher |
Amer Physical Soc |
Place of Publication |
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English |
Summary Language |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1550-7998 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000352062400002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2173 |
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| Permanent link to this record |
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Author |
Campanario, F.; Figy, T.M.; Platzer, S.; Rauch, M.; Schichtel, P.; Sjodahl, M. |
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Title |
Stress testing the vector-boson-fusion approximation in multijet final states |
Type |
Journal Article |
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Year |
2018 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
98 |
Issue |
3 |
Pages |
033003 - 7pp |
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Keywords |
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Abstract |
We consider electroweak Higgs plus three jets production at NLO QCD beyond strict VBF acceptance cuts. We investigate, for the first time, how accurate the VBF approximation is in these regions and within perturbative uncertainties by a detailed comparison of full and approximate calculations. We find that a rapidity gap between the tagging jets guarantees a good approximation, while an invariant mass cut alone is not sufficient, which needs to be confronted with experimental choices. We also find that a significant part of the QCD corrections can be attributed to Higgs-Strahlungs-type topologies. |
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Address |
[Campanario, Francisco] Univ Valencia, Div Theory, IFIC, CSIC, E-46980 Valencia, Spain |
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Thesis |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2470-0010 |
ISBN |
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Medium |
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Expedition |
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Conference |
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Notes |
WOS:000442476300001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3700 |
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| Permanent link to this record |
