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Papers by mauro moretti

Research paper thumbnail of 2Centre for Particle Physics and Phenomenology (CP3)

Higgs boson production in association with two forward jets and a central photon at the CERN Larg... more Higgs boson production in association with two forward jets and a central photon at the CERN Large Hadron Collider is analyzed, for the Higgs boson decaying into a b¯b pair in the mH < ∼ 140 GeV mass region. We study both irreducible and main reducible backgrounds at parton level. Compared to the Higgs production via vectorboson fusion, the request of a further photon at moderate rapidities dramatically enhances the signal/background ratio. Inclusive cross sections for p γ T> ∼ 20 GeV can reach a few tens of fb’s. After a suitable choice of kinematical cuts, the cross-section ratio for signal and irreducible-background can be enhanced up to> ∼ 1/10, with a signal cross section of the order of a few fb’s, for mH ∼ 120 GeV. The request of a central photon radiation also enhances the relative signal sensitivity to the WWH coupling with respect to the ZZH coupling. Hence, a determination of the cross section for the associated production of a Higgs boson decaying into a b¯b pai...

Research paper thumbnail of Physics at Future e + e − Colliders

Research paper thumbnail of Prin 2004, Responabile di unita' locale di progetto approvato

Prin 2004 approvato. Teoria e fenomenologia delle interazioni forti ai colliders adronic

Research paper thumbnail of Four Fermions Productions at a γγ Collider

Using the recently proposed ALPHA algorithm (and the resulting code) I compute the rate (at tree ... more Using the recently proposed ALPHA algorithm (and the resulting code) I compute the rate (at tree level) for the process γγ → ν̄ee ud̄. The bulk of the contribution is due to W pair production and decay. However a non negligible (∼ 10%) contribution comes from other channels, mainly the production and decay of a W and a collinear charged fermion. Requiring that the reconstructed invariant ud̄ mass lies in the intervals MW ± 5 GeV and MW ± 20 GeV one obtains a rate which is lower, by 25 % and 4 % respectively, than the rate obtained in the narrow width approximation, thus demonstrating the relevance of the finite W width.

Research paper thumbnail of Four leptons final states from γγ fusion

I present a systematic study of all possible four leptons final states from γγ collisions. It is ... more I present a systematic study of all possible four leptons final states from γγ collisions. It is given a detailed account of fermion masses effects which are sizable since several collinear and t channel enancements occur. The effects of angular cuts on the final charged leptons are also discussed. To perform the computation I have used the recently developed ALPHA algorithm (and the resulting code) for the automatic computation of scattering amplitudes.

Research paper thumbnail of QED corrections to Higgs boson decay into four leptons at the LHC

Proceedings of International Europhysics Conference on High Energy Physics — PoS(HEP2005), Apr 24, 2007

Research paper thumbnail of Studies of Higgs production through Weak Boson Fusion at the LHC

Proceedings of International Europhysics Conference on High Energy Physics — PoS(HEP2005), Apr 24, 2007

Research paper thumbnail of Recent advances in the combination of QCD and EW corrections to the Drell-Yan processes

Proceedings of RADCOR 2009 - 9th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) — PoS(RADCOR2009), 2010

Research paper thumbnail of Drell-Yan processes at the LHC

Proceedings of 8th International Symposium on Radiative Corrections — PoS(RAD COR 2007), 2008

Research paper thumbnail of Top-quark physics in six-quark final states at the next linear collider

Research paper thumbnail of Beyond the Standard Model Higgs Boson Self-Couplings at the LHC

High Energy Physics, 2005

Research paper thumbnail of Four-fermion productions at a gammagamma collider

Research paper thumbnail of Four-fermion productions at a ?? collider

Research paper thumbnail of O’Mega: An optimizing matrix element generator

AIP Conference Proceedings, 2001

Research paper thumbnail of Higgs boson self-couplings at the LHC as a probe of extended Higgs sectors

Journal of High Energy Physics, 2005

Research paper thumbnail of Four leptons final states from $ gamma gamma$ fusion

Research paper thumbnail of Vector-boson production of light Higgs pairs in 2-Higgs doublet models

Journal of High Energy Physics, 2007

Research paper thumbnail of Drell-Yan processes at hadron colliders

Research paper thumbnail of Combining electroweak and QCD corrections to Drell-Yan processes at hadron colliders

Research paper thumbnail of Electroweak Corrections at High Energies

Research paper thumbnail of 2Centre for Particle Physics and Phenomenology (CP3)

Higgs boson production in association with two forward jets and a central photon at the CERN Larg... more Higgs boson production in association with two forward jets and a central photon at the CERN Large Hadron Collider is analyzed, for the Higgs boson decaying into a b¯b pair in the mH < ∼ 140 GeV mass region. We study both irreducible and main reducible backgrounds at parton level. Compared to the Higgs production via vectorboson fusion, the request of a further photon at moderate rapidities dramatically enhances the signal/background ratio. Inclusive cross sections for p γ T> ∼ 20 GeV can reach a few tens of fb’s. After a suitable choice of kinematical cuts, the cross-section ratio for signal and irreducible-background can be enhanced up to> ∼ 1/10, with a signal cross section of the order of a few fb’s, for mH ∼ 120 GeV. The request of a central photon radiation also enhances the relative signal sensitivity to the WWH coupling with respect to the ZZH coupling. Hence, a determination of the cross section for the associated production of a Higgs boson decaying into a b¯b pai...

Research paper thumbnail of Physics at Future e + e − Colliders

Research paper thumbnail of Prin 2004, Responabile di unita' locale di progetto approvato

Prin 2004 approvato. Teoria e fenomenologia delle interazioni forti ai colliders adronic

Research paper thumbnail of Four Fermions Productions at a γγ Collider

Using the recently proposed ALPHA algorithm (and the resulting code) I compute the rate (at tree ... more Using the recently proposed ALPHA algorithm (and the resulting code) I compute the rate (at tree level) for the process γγ → ν̄ee ud̄. The bulk of the contribution is due to W pair production and decay. However a non negligible (∼ 10%) contribution comes from other channels, mainly the production and decay of a W and a collinear charged fermion. Requiring that the reconstructed invariant ud̄ mass lies in the intervals MW ± 5 GeV and MW ± 20 GeV one obtains a rate which is lower, by 25 % and 4 % respectively, than the rate obtained in the narrow width approximation, thus demonstrating the relevance of the finite W width.

Research paper thumbnail of Four leptons final states from γγ fusion

I present a systematic study of all possible four leptons final states from γγ collisions. It is ... more I present a systematic study of all possible four leptons final states from γγ collisions. It is given a detailed account of fermion masses effects which are sizable since several collinear and t channel enancements occur. The effects of angular cuts on the final charged leptons are also discussed. To perform the computation I have used the recently developed ALPHA algorithm (and the resulting code) for the automatic computation of scattering amplitudes.

Research paper thumbnail of QED corrections to Higgs boson decay into four leptons at the LHC

Proceedings of International Europhysics Conference on High Energy Physics — PoS(HEP2005), Apr 24, 2007

Research paper thumbnail of Studies of Higgs production through Weak Boson Fusion at the LHC

Proceedings of International Europhysics Conference on High Energy Physics — PoS(HEP2005), Apr 24, 2007

Research paper thumbnail of Recent advances in the combination of QCD and EW corrections to the Drell-Yan processes

Proceedings of RADCOR 2009 - 9th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) — PoS(RADCOR2009), 2010

Research paper thumbnail of Drell-Yan processes at the LHC

Proceedings of 8th International Symposium on Radiative Corrections — PoS(RAD COR 2007), 2008

Research paper thumbnail of Top-quark physics in six-quark final states at the next linear collider

Research paper thumbnail of Beyond the Standard Model Higgs Boson Self-Couplings at the LHC

High Energy Physics, 2005

Research paper thumbnail of Four-fermion productions at a gammagamma collider

Research paper thumbnail of Four-fermion productions at a ?? collider

Research paper thumbnail of O’Mega: An optimizing matrix element generator

AIP Conference Proceedings, 2001

Research paper thumbnail of Higgs boson self-couplings at the LHC as a probe of extended Higgs sectors

Journal of High Energy Physics, 2005

Research paper thumbnail of Four leptons final states from $ gamma gamma$ fusion

Research paper thumbnail of Vector-boson production of light Higgs pairs in 2-Higgs doublet models

Journal of High Energy Physics, 2007

Research paper thumbnail of Drell-Yan processes at hadron colliders

Research paper thumbnail of Combining electroweak and QCD corrections to Drell-Yan processes at hadron colliders

Research paper thumbnail of Electroweak Corrections at High Energies

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