Publications (55)
TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
R. -D. Heuer, D. J. Miller, F. Richard +236
The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
Production of Light Higgs Pairs in 2-Higgs Doublet Models via the Higgs-strahlung Process at the LHC
M. Moretti, S. Moretti, F. Piccinini +2
At the Large Hadron Collider, we prove the feasibility to detect pair production of the lightest CP-even Higgs boson h of a Type II 2-Higgs Doublet Model through the process q \bar…
Les Houches Physics at TeV Colliders 2005, Standard Model and Higgs working group: Summary report
C. Buttar, S. Dittmaier, V. Drollinger +118
This Report summarises the activities of the "SM and Higgs" working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. On the one hand, we perf…
A new approach to multi-jet calculations in hadron collisions
M. Moretti
The ALPHA algorithm to evaluate the exact, tree-level matrix elements is reviewed in the context of multi-parton processes in QCD. The algorithm is suited for the authomatic calcul…
Soft Supersymmetry Breaking from Gaugino Condensation
B. de Carlos, M. Moretti
We study the structure of soft breaking terms in the context of a gaugino condensation scenario. Assuming that the Supergravity Lagrangian is the correct quantum field theory limit…
Factor of Boron-like Tin
J. Morgner, B. Tu, M. Moretti +10
In the ALPHATRAP experiment, the factor of boron-like has been measured with a parts-per-billion uncertainty. This is the first high-precision m…
Four-Fermion Production in Electron-Positron Collisions
Martin W. Gruenewald, Giampiero Passarino, E. Accomando +37
This report summarises the results of the four-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the calculation of four-fermion…
QCD
S. Catani, M. Dittmar, D. Soper +61
We discuss issues of QCD at the LHC including parton distributions, Monte Carlo event generators, the available next-to-leading order calculations, resummation, photon production,…
Proceedings of the Workshop on Monte Carlo's, Physics and Simulations at the LHC PART I
F. Ambroglini, R. Armillis, P. Azzi +56
These proceedings collect the presentations given at the first three meetings of the INFN "Workshop on Monte Carlo's, Physics and Simulations at the LHC", held at the Frascati Nati…
Vector-Boson Production of Light Higgs Pairs in 2-Higgs Doublet Models
M. Moretti, S. Moretti, F. Piccinini +2
At the Large Hadron Collider, we prove the feasibility to detect pair production of the lightest CP-even Higgs boson of Type II 2-Higgs Doublet Models through $q q^{(')}\to q q…
Physics at a 100 TeV pp collider: Standard Model processes
M. L. Mangano, G. Zanderighi, J. A. Aguilar Saavedra +73
This report summarises the properties of Standard Model processes at the 100 TeV pp collider. We document the production rates and typical distributions for a number of benchmark S…
into 4 fermions + with ALPHA
F. Caravaglios, M. Moretti
We apply the iterative numerical algorithm ALPHA, which automatically generates the N-point Green functions (as recently suggested \cite{alpha}) to the computation of the productio…
The anisotropy of inverse beta decay and antineutrino detection
G. Fiorentini, M. Moretti, F. L. Villante
The anisotropy of the positrons emitted in the reaction has to be taken into account for extracting an antineutrino signal in Superkamiokande. For the Sun…
Superkamiokande and solar antineutrinos
G. Fiorentini, M. Moretti, F. L. Villante
We propose to exploit the angular distribution of the positrons emitted in the inverse beta decay to extract a possible antineutrino signal from the Superkamiokande background. Fro…
Event Generators for WW Physics
D. Bardin, R. Kleiss, E. Accomando +42
The report summarizes the results of the activities of the Working Group on Event Generators for WW Physics at CERN during 1995.
Proceedings of the Workshop on Monte Carlo's, Physics and Simulations at the LHC PART II
F. Ambroglini, R. Armillis, P. Azzi +57
These proceedings collect the presentations given at the first three meetings of the INFN "Workshop on Monte Carlo's, Physics and Simulations at the LHC", held at the Frascati Nati…
Combination of electroweak and QCD corrections to single W production at the Fermilab Tevatron and the CERN LHC
G. Balossini, C. M. Carloni Calame, G. Montagna +5
Precision studies of the production of a high-transverse momentum lepton in association with missing energy at hadron colliders require that electroweak and QCD higher-order contri…
Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
J. Alwall, S. Hoeche, F. Krauss +11
We compare different procedures for combining fixed-order tree-level matrix-element generators with parton showers. We use the case of W-production at the Tevatron and the LHC to c…
Report of the Snowmass 2013 energy frontier QCD working group
J. M. Campbell, K. Hatakeyama, J. Huston +51
This is the summary report of the energy frontier QCD working group prepared for Snowmass 2013. We review the status of tools, both theoretical and experimental, for understanding…
Higher-order QED corrections to single-W production in electron-positron collisions
G. Montagna, M. Moretti, O. Nicrosini +2
Four-fermion processes with a particle lost in the beam pipe are studied at LEP to perform precision tests of the electroweak theory. Leading higher-order QED corrections to such p…
Future Circular Collider Feasibility Study Report: Volume 3, Civil Engineering, Implementation and Sustainability
M. Benedikt, F. Zimmermann, B. Auchmann +1461
Volume 3 of the FCC Feasibility Report presents studies related to civil engineering, the development of a project implementation scenario, and environmental and sustainability asp…
Single- and multi-photon final states with missing energy at e+e- colliders
G. Montagna, M. Moretti, O. Nicrosini +1
The search for new physics in single- and multi-photon final states with large missing energy at LEP and future e^+ e^- colliders requires precise predictions for the Standard Mode…
A Robust Scheme for PSS Detection and Integer Frequency Offset Recovery in LTE Systems
M. Morelli, M. Moretti
Before establishing a communication link in a cellular network, the user terminal must activate a synchronization procedure called initial cell search in order to acquire specific…
Phenomenological Implications of Supersymmetry Breaking by the Dilaton
R. Barbieri, J. Louis, M. Moretti
We investigate the low energy properties of string vacua with spontaneously broken supersymmetry by a dilaton -term. As a consequence of the universal couplings of the dil…
Four Fermions Productions at a Collider
M. Moretti
Using the recently proposed ALPHA algorithm (and the resulting code) I compute the rate (at tree level) for the process . The bulk of the cont…
FAMU: study of the energy dependent transfer rate
FAMU Collaboration, E. Mocchiutti, V. Bonvicini +53
The main goal of the FAMU experiment is the measurement of the hyperfine splitting (hfs) in the 1S state of muonic hydrogen . The physical process behind this e…
Radiative four-fermion processes at LEP2
G. Montagna, M. Moretti, O. Nicrosini +2
The production of four fermions plus a visible photon in electron-positron collisions is analyzed, with particular emphasis on the LEP2 energy range. The study is based on the calc…
Les Houches 2013: Physics at TeV Colliders: Standard Model Working Group Report
J. Butterworth, G. Dissertori, S. Dittmaier +76
This Report summarizes the proceedings of the 2013 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt primarily with (1) the techniques for calculating standard mode…
A Fully Numerical Approach to One-Loop Amplitudes
M. Moretti, F. Piccinini, A. D. Polosa
We suggest a new approach for the automatic and fully numerical evaluation of one-loop scattering amplitudes in perturbative quantum field theory. We use suitably formulated disper…
Electroweak physics in six-fermion final states at future e+e- colliders
F. Gangemi, G. Montagna, M. Moretti +2
Three studies on six-fermion production processes are presented, in which the production of an intermediate-mass Higgs boson, the top-quark physics and the analysis of possible ano…
Future Circular Collider Feasibility Study Report: Volume 2, Accelerators, Technical Infrastructure and Safety
M. Benedikt, F. Zimmermann, B. Auchmann +1461
In response to the 2020 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) Feasibility Study was launched as an international collaboration ho…
Higgs boson self-couplings at the LHC as a probe of extended Higgs sectors
M. Moretti, S. Moretti, F. Piccinini +2
A study of two-Higgs-doublet models (2HDM) in the decoupling limit reveals the existence of parameter configurations with a large triple-Higgs self-coupling as the only low-energy…
Monte Carlo studies of the jet activity in Higgs + 2 jet events
V. Del Duca, G. Klämke, M. L. Mangano +5
Tree-level studies have shown in the past that kinematical correlations between the two jets in Higgs+2-jet events are direct probes of the Higgs couplings, e.g. of their CP nature…
Higgs Working Group Summary Report
S. Dawson, M. Grazzini, A. Nikitenko +56
Report of the Working Group on Higgs Bosons for the Workshop, ``Physics at TeV Colliders'', Les Houches, France, 11-29 June, 2007.
Light-Pair Corrections to Small-Angle Bhabha Scattering in a Realistic Set-up at LEP
G. Montagna, M. Moretti, O. Nicrosini +2
Light-pair corrections to small-angle Bhabha scattering have been computed in a realistic set-up for luminosity measurements at LEP. The effect of acollinearity and acoplanarity re…
Steps towards the hyperfine splitting measurement of the muonic hydrogen ground state: pulsed muon beam and detection system characterization
A. Adamczak, G. Baccolo, D. Bakalov +52
The high precision measurement of the hyperfine splitting of the muonic-hydrogen atom ground state with pulsed and intense muon beam requires careful technological choices both in…
b-bbar final states in Higgs production via weak boson fusion at the LHC
M. L. Mangano, M. Moretti, F. Piccinini +2
We present a study of the Higgs production at the LHC via Weak Boson Fusion, with the Higgs boson decaying into a b-quark pair. A detailed partonic LO calculation of all the potent…
Quartic anomalous couplings at LEP
G. Montagna, M. Moretti, O. Nicrosini +2
The search for quartic anomalous gauge couplings at LEP requires appropriate predictions for the radiative processes e+ e- \to ν\barνγγ, e+ e- \to q\bar{q}γγand e+ e- \to 4 f…
Top-quark physics in six-quark final states at the Next Linear Collider
F. Gangemi, G. Montagna, M. Moretti +2
The processes of six-quark production with one pair are studied by means of a complete tree-level electroweak calculation. The top-quark signal is examined: the importanc…
Non Abelian Gauge Couplings in Four Fermion Processes at LEP
G. Montagna, M. Moretti, M. Osmo +2
The LEP data on four fermion processes are presently used to study the non abelian gauge couplings of the Standard Model. The present theoretical error for two classes of processes…
Six-fermion production and Higgs boson physics at future colliders
F. Gangemi, G. Montagna, M. Moretti +2
The six-fermion production processes , with all the lepton flavours and , relevant to the study of the intermediate-mass Higgs boson a…
Combined analysis of Z' -> t tbar and Z' -> t tbar j production for vector resonance searches at LHC
F. del Aguila, J. A. Aguilar-Saavedra, M. Moretti +3
We have implemented a code for Z' + n jets production in ALPGEN, with Z' decays into several final states, including l+ l- and t tbar. The MLM prescription is used for matching the…
ALPGEN, a generator for hard multiparton processes in hadronic collisions
M. L. Mangano, M. Moretti, F. Piccinini +2
This paper presents a new event generator, ALPGEN, dedicated to the study of multiparton hard processes in hadronic collisions. The code performs, at the leading order in QCD and E…
A new approach to multi-jet calculations in hadron collisions
F. Caravaglios, M. L. Mangano, M. Moretti +1
We present an algorithm to evaluate the exact, tree-level matrix elements for multi-parton processes in QCD. We tested this technique, based on the recursive evaluation of the S-ma…
Six-Fermion Calculation of Intermediate-mass Higgs Boson Production at Future Colliders
G. Montagna, M. Moretti, O. Nicrosini +1
The production of an intermediate-mass Higgs boson in processes of the kind fermions at the energies of future linear colliders is studied. The recently developed a…
Electroweak & QCD corrections to Drell Yan processes
G. Balossini, C. M. Carloni Calame, G. Montagna +5
The relevance of single-W and single-Z production processes at hadron colliders is well known: in the present paper the status of theoretical calculations of Drell-Yan processes is…
The relevance of the vertex bremsstrahlung photon detection in the electron-neutrino (antineutrino) electron scattering experiments at low energy
C. Broggini, I. Masina, M. Moretti
We discuss the size of the electron-antineutrino electron into electron-antineutrino electron cross section reduction due to the rejection of the events with a vertex bremsstrahlun…
Light Pair Correction to Bhabha Scattering at Small Angle
G. Montagna, M. Moretti, O. Nicrosini +2
This work deals with the computation of electron pair correction to small angle Bhabha scattering, in order to contribute to the improvement of luminometry precision at LEP/SLC bel…
Impact of QED corrections to Higgs decay into four leptons at the LHC
C. M. Carloni Calame, M. Moretti, G. Montagna +3
At the LHC a precise measurement of the Higgs boson mass (if discovered), at the level of 0.1-1%, will be possible through the channel g g --> H --> 4l for a wide range of Higgs ma…
Pion pair production in annihilation at next-to-leading order matched to Parton Shower
E. Budassi, C. M. Carloni Calame, M. Ghilardi +6
The pion pair production in annihilation at flavour factories plays a crucial role in the determination of the hadronic contribution to the muon anomalous magnetic moment…
Future Circular Collider Feasibility Study Report: Volume 1, Physics, Experiments, Detectors
M. Benedikt, F. Zimmermann, B. Auchmann +1461
Volume 1 of the FCC Feasibility Report presents an overview of the physics case, experimental programme, and detector concepts for the Future Circular Collider (FCC). This volume o…
Beyond the Standard Model Higgs Boson self-couplings at the LHC
M. Moretti, S. Moretti, F. Piccinini +2
A study of two-Higgs-doublet models (2HDM) in the decoupling limit reveals the existence of parameter configurations with a large triple-Higgs self-coupling as the only low-energy…
An Algorithm to Compute Born Scattering Amplitudes without Feynman Graphs
F. Caravaglios, M. Moretti
In this paper we suggest an {\it iterative} algorithm to compute automatically the scattering matrix elements of any given effective lagrangian, . By exploiting the relation be…
Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report
S. Badger, J. Bendavid, V. Ciulli +92
This Report summarizes the proceedings of the 2015 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt with (I) new developments relevant for high precision Standard…
Two-Fermion Production in Electron-Positron Collisions
Michael Kobel, Zbigniew Was, C. Ainsley +31
This report summarizes the results of the two-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the theoretical calculations of…