F. Piccinini
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View article: Radiative corrections and Monte Carlo tools for low-energy hadronic cross sections in $e^+ e^-$ collisions
Radiative corrections and Monte Carlo tools for low-energy hadronic cross sections in $e^+ e^-$ collisions Open
We present the results of Phase I of an ongoing review of Monte Carlo tools relevant for low-energy hadronic cross sections. This includes a detailed comparison of Monte Carlo codes for electron–positron scattering into a muon pair, pion p…
View article: Radiative corrections and Monte Carlo tools for low-energy hadronic cross sections in $e^+ e^-$ collisions
Radiative corrections and Monte Carlo tools for low-energy hadronic cross sections in $e^+ e^-$ collisions Open
We present the results of Phase I of an ongoing review of Monte Carlo tools relevant for low-energy hadronic cross sections. This includes a detailed comparison of Monte Carlo codes for electron–positron scattering into a muon pair, pion p…
View article: Pion pair production in e+e− annihilation at next-to-leading order matched to Parton Shower
Pion pair production in e+e− annihilation at next-to-leading order matched to Parton Shower Open
A bstract The pion pair production in e + e − annihilation at flavour factories plays a crucial role in the determination of the hadronic contribution to the muon anomalous magnetic moment. The recent CMD-3 measurement of the pion form fac…
View article: New Physics contamination to precision luminosity measurements at future $e^+e^-$ colliders
New Physics contamination to precision luminosity measurements at future $e^+e^-$ colliders Open
Several key observables of the high-precision physics program at future lepton colliders will critically depend on the knowledge of the absolute machine luminosity. The determination of the luminosity relies on the precise knowledge of som…
View article: Multi Higgs production via photon fusion at future multi-TeV muon colliders
Multi Higgs production via photon fusion at future multi-TeV muon colliders Open
Multi-TeV muon colliders promise an unprecedented potential for exploring the particle-physics energy frontier, and, at the same time, can probe with fantastic accuracy the precise structure of the Standard Model, and in particular of the …
View article: On electroweak corrections to neutral current Drell–Yan with the POWHEG BOX
On electroweak corrections to neutral current Drell–Yan with the POWHEG BOX Open
Motivated by the requirement of a refined and flexible treatment of electroweak corrections to the neutral current Drell–Yan process, we report on recent developments on various input parameter/renormalization schemes for the calculation o…
View article: Lepton pair production in muon-nucleus scattering
Lepton pair production in muon-nucleus scattering Open
The MUonE experiment aims at providing a novel determination of the leading hadronic contribution to the muon anomalous magnetic moment through the study of elastic muon-electron scattering. Since the initial-state electrons are bound in a…
View article: Focus topics for the ECFA study on Higgs / Top / EW factories
Focus topics for the ECFA study on Higgs / Top / EW factories Open
In order to stimulate new engagement and trigger some concrete studies in areas where further work would be beneficial towards fully understanding the physics potential of an $e^+e^-$ Higgs / Top / Electroweak factory, we propose to define…
View article: Lepton pair production in muon-nucleus scattering
Lepton pair production in muon-nucleus scattering Open
The MUonE experiment aims at providing a novel determination of the leading hadronic contribution to the muon anomalous magnetic moment through the study of elastic muon-electron scattering. Since the initial-state electrons are bound in a…
View article: Hadronic contribution to the muon <i>g</i> − 2: Theoretical challenges with the MUonE experiment
Hadronic contribution to the muon <i>g</i> − 2: Theoretical challenges with the MUonE experiment Open
After briefly reviewing the present status on the theoretical predictions for the hadronic contribution to the muon anomalous magnetic moment, the MUonE approach is introduced, with a discussion on the challenges for the needed theoretical…
View article: Probing the weak mixing angle at high energy
Probing the weak mixing angle at high energy Open
The weak mixing angle is a probe of the vector-axial coupling structure of electroweak interactions. It has been measured precisely at the $Z$-pole by experiments at the LEP and SLD colliders, but its energy dependence above $M_Z$ remains …
View article: Probing the weak mixing angle at high energies at the LHC and HL-LHC
Probing the weak mixing angle at high energies at the LHC and HL-LHC Open
Measurements of neutral current Drell-Yan production at large invariant dilepton masses can be used to test the energy scale dependence (running) of the electroweak mixing angle. In this work, we make use of a novel implementation of the f…
View article: Probing the Weak Mixing Angle at high energies at the LHC
Probing the Weak Mixing Angle at high energies at the LHC Open
The electroweak mixing angle is a fundamental parameter of the theory of electroweak interactions. Its value has been measured precisely at the $\\mathrm{Z}$-pole at colliders. In this contribution, we propose to exploit measurements of Ne…
View article: The physics case of a 3 TeV muon collider stage
The physics case of a 3 TeV muon collider stage Open
In the path towards a muon collider with center of mass energy of 10 TeV or more, a stage at 3 TeV emerges as an appealing option. Reviewing the physics potential of such muon collider is the main purpose of this document. In order to outl…
View article: Muon Collider Physics Summary
Muon Collider Physics Summary Open
The perspective of designing muon colliders with high energy and luminosity, which is being investigated by the International Muon Collider Collaboration, has triggered a growing interest in their physics reach. We present a concise summar…
View article: Erratum to: Muon-electron scattering at NLO
Erratum to: Muon-electron scattering at NLO Open
We became aware of a misrepresentation of the differential cross sections in the upper panels of figure 4 of the original paper.Namely, the vertical scale of the plots is wrong by a factor of π/180 × 1000 17.4533.The corrected graphs are s…
View article: Initial state QED radiation aspects for future $e^+e^-$ colliders
Initial state QED radiation aspects for future $e^+e^-$ colliders Open
This white paper concerns theoretical and phenomenological aspects relevant to the physics of future $e^+e^-$ colliders, in particular regarding initial-state QED radiation. The contributions each contain key technical aspects, and are for…
View article: Probing the Weak Mixing Angle at high energies at the LHC
Probing the Weak Mixing Angle at high energies at the LHC Open
The electroweak mixing angle is a fundamental parameter of the theory of electroweak interactions. Its value has been measured precisely at the $\mathrm{Z}$-pole at colliders. In this contribution, we propose to exploit measurements of Neu…
View article: The complex potential from 2+1 flavor QCD using HTL inspired approach
The complex potential from 2+1 flavor QCD using HTL inspired approach Open
We have studied finite temperature complex static quark-antiquark potentials for 2+1 flavor QCD using highly improved staggered action with physical strange quark masses and light quark masses corresponding to a pion mass of 161 MeV. We ca…
View article: Multi Higgs production via photon fusion at future multi-TeV muon colliders
Multi Higgs production via photon fusion at future multi-TeV muon colliders Open
Multi-TeV muon colliders promise an unprecedented potential for exploring the particle-physics energy frontier, and, at the same time, can probe with fantastic accuracy the precise structure of the Standard Model, and in particular of the …
View article: Estimating <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi></mml:math> absorption for ultrahigh-energy photons with lepton and hadron production
Estimating absorption for ultrahigh-energy photons with lepton and hadron production Open
Surprisingly, the contribution to the cosmic opacity to UHE ($E>10^{18} \\,\n\\rm eV$) $\\gamma$-rays has been systematically computed so far for the $\\gamma\n\\gamma \\to e^+e^-$ and $\\gamma \\gamma \\to e^+ e^- e^+ e^-$ processes alone…
View article: CERN Yellow Reports: Monographs, Vol 3 (2020): Theory for the FCC-ee: Report on the 11th FCC-ee Workshop, Theory and Experiments, 8–11 January 2019, CERN, Geneva
CERN Yellow Reports: Monographs, Vol 3 (2020): Theory for the FCC-ee: Report on the 11th FCC-ee Workshop, Theory and Experiments, 8–11 January 2019, CERN, Geneva Open
The Future Circular Collider (FCC) at CERN, a proposed 100-km circular facility with several colliders in succession, culminates with a 100 TeV proton-proton collider. It offers a vast new domain of exploration in particle physics, with or…
View article: Confronting <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math> anomalies with low-energy parity violation
Confronting anomalies with low-energy parity violation Open
Indirect searches have the potential to probe scales beyond the realm of\ndirect searches. In this letter we consider the implications of two parity\nviolating experiments: weak charge of proton $Q_W^p$ and the Caesium atom\n$Q_W^{Cs}$ on …