G. Pancheri
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View article: About BSM physics, with emphasis on flavour
About BSM physics, with emphasis on flavour Open
This article is an account of a talk given at the Conference The rise of Particle Physics celebrating the 50th anniversary of the J/Ψ discovery. It contains some reflections on BSM physics and flavour in particular.
View article: Ansatz about a Zero Momentum Mode in QCD and the Forward Slope in pp Elastic Scattering
Ansatz about a Zero Momentum Mode in QCD and the Forward Slope in pp Elastic Scattering Open
We recall a resummation procedure in QED to extract the zero momentum mode in soft photon emission and present an ansatz about a possible mechanism for the forward peak characterizing elastic proton proton scattering.
View article: Raoul Gatto and Bruno Touschek’s joint legacy in the rise of electron–positron physics
Raoul Gatto and Bruno Touschek’s joint legacy in the rise of electron–positron physics Open
Raoul Gatto and Bruno Touschek’s collaboration in the establishment of electron–positron colliders as a fundamental discovery tool in particle physics will be illustrated. In particular, we will tell the little-known story of how Gatto and…
View article: Ansatz about a zero momentum mode in QCD and the forward slope in pp elastic scattering
Ansatz about a zero momentum mode in QCD and the forward slope in pp elastic scattering Open
We recall a resummation procedure in QED to extract the zero momentum mode in soft photon emission and present an ansatz about a possible mechanism for the forward peak characterizing elastic proton proton scattering.
View article: Raoul Gatto and Bruno Touschek's joint legacy in the rise of electron-positron physics
Raoul Gatto and Bruno Touschek's joint legacy in the rise of electron-positron physics Open
Raoul Gatto and Bruno Touschek's collaboration in the establishment of electron positron colliders as a fundamental discovery tool in particle physics will be illustrated. In particular, we will tell the little-known story of how Gatto and…
View article: The Making of AdA: Bruno Touschek’s Journey from Widerøe’s Betatron to Storage Rings
The Making of AdA: Bruno Touschek’s Journey from Widerøe’s Betatron to Storage Rings Open
In Italy, in 1960, Bruno Touschek conceived and built the first particle-antiparticle collider, called AdA. The different roads and pathways which led to the successful demonstration that it was possible to accumulate electrons and positro…
View article: Bruno Touschek 100 Years
Bruno Touschek 100 Years Open
This open access book celebrates the contribution of Bruno Touschek to theoretical physics and particle colliders in Europe
View article: Bruno Touschek’s Extraordinary Journey to Munich, Hamburg and Berlin: 1942–1943
Bruno Touschek’s Extraordinary Journey to Munich, Hamburg and Berlin: 1942–1943 Open
Bruno left Austria for Germany in February 1942, to follow his call to study physics, naively hoping his Jewish origin on the maternal side could go unnoticed to the Gestapo. After first visiting Sommerfeld in Munich, he went to Hamburg, a…
View article: About soft photon resummation
About soft photon resummation Open
The first time one of us (G.P.) encountered Earle was in Summer 1966, when she was directed to study Earle's papers on radiative corrections to quasi-elastic electron scattering. The suggestion had come from Bruno Touschek, at the time hea…
View article: Bruno Touschek in Glasgow. The making of a theoretical physicist
Bruno Touschek in Glasgow. The making of a theoretical physicist Open
In the history of the discovery tools of last century particle physics, central stage is taken by elementary particle accelerators and in particular by colliders. In their start and early development, a major role was played by the Austria…
View article: Modeling Double Parton Scattering at LHC
Modeling Double Parton Scattering at LHC Open
We examine present data for double parton scattering at LHC and discuss their energy dependence from its earliest measurements at the ISR. Different models for the effective cross-section are considered and their behavior studied for a var…
View article: Bruno Touschek in Germany after the War: 1945-46
Bruno Touschek in Germany after the War: 1945-46 Open
Bruno Touschek was an Austrian born theoretical physicist, who proposed and built the first electron-positron collider in 1960 in the Frascati National Laboratories in Italy. In this note we reconstruct a crucial period of Bruno Touschek's…
View article: Analysis and implications of precision near-forward TOTEM data
Analysis and implications of precision near-forward TOTEM data Open
Very precise data on elastic proton-proton scattering at $\\sqrt{s}=7$, $8$\nand $13$ TeV have been obtained by the TOTEM group at LHC in the near-forward\nregion (momentum transfers down to $|t| = 6 \\times 10^{-4}\\ {\\rm GeV}^2$ at\n$\\…
View article: The elastic differential pp cross-section at 13 TeV: an empirical model analysis
The elastic differential pp cross-section at 13 TeV: an empirical model analysis Open
We discuss the differential elastic pp cross-section data measured at 13 TeV, through the Coulomb Nuclear Interference region until past the dip. We show that data are consistent with the asymptotic predictions from an empirical model and …
View article: Touschek with AdA in Orsay and the first direct observation of electron-positron collisions
Touschek with AdA in Orsay and the first direct observation of electron-positron collisions Open
We describe how the first direct observation of electron-positron collisions took place in 1963-1964 at the Laboratoire de l'Accélérateur Linéaire d'Orsay, in France, with the storage ring AdA, which had been proposed and constructed in th…
View article: Touschek with AdA in Orsay and the first direct observation of\n electron-positron collisions
Touschek with AdA in Orsay and the first direct observation of\n electron-positron collisions Open
We describe how the first direct observation of electron-positron collisions\ntook place in 1963-1964 at the Laboratoire de l'Acc\\'el\\'erateur Lin\\'eaire\nd'Orsay, in France, with the storage ring AdA, which had been proposed and\nconst…
View article: PHOTON-2017 conference proceedings
PHOTON-2017 conference proceedings Open
This document collects the proceedings of the PHOTON 2017 conference ("International Conference on the Structure and the Interactions of the Photon", including the 22th "International Workshop on Photon-Photon Collisions", and the "Interna…
View article: Bruno Touschek and AdA: from Frascati to Orsay. In memory of Bruno Touschek, who passed away 40 years ago, on May 25th, 1978
Bruno Touschek and AdA: from Frascati to Orsay. In memory of Bruno Touschek, who passed away 40 years ago, on May 25th, 1978 Open
The first electron-positron collisions in a laboratory were observed in 1963-1964 at the Laboratoire de l'Accélérateur Linéaire d'Orsay, in France, with the storage ring AdA, which had been constructed in the Italian National Laboratories …
View article: A Democratic Resummation Procedure of Soft Gluon Emission for Hadronic\n Inelastic Cross-sections and Survival Probabilities
A Democratic Resummation Procedure of Soft Gluon Emission for Hadronic\n Inelastic Cross-sections and Survival Probabilities Open
We discuss a model for soft gluon re-summation based on a statistical\ndescription of independent emissions during inelastic collisions. The model is\napplied to estimate Survival Probabilities at the LHC. A comparison with other\nmodels a…
View article: A Democratic Resummation Procedure of Soft Gluon Emission for Hadronic Inelastic Cross-sections and Survival Probabilities
A Democratic Resummation Procedure of Soft Gluon Emission for Hadronic Inelastic Cross-sections and Survival Probabilities Open
We discuss a model for soft gluon re-summation based on a statistical description of independent emissions during inelastic collisions. The model is applied to estimate Survival Probabilities at the LHC. A comparison with other models and …
View article: Maria Krawczyk : friend and physicist
Maria Krawczyk : friend and physicist Open
We remember here our friend and colleague Maria Krawczyk, Professor of Physics at Warsaw University, who passed away suddenly on May 24th 2017. Her contribution to physics and her great personal qualities are described.
View article: The non-diffractive pp cross-section and Survival Probabilities at LHC
The non-diffractive pp cross-section and Survival Probabilities at LHC Open
We present an estimate of survival probability from an eikonal mini- jet model implemented with a proposal for soft gluon resummation to all orders. We compare it with experimental data for diffractive di-jet production from LHC experiment…
View article: Production of exotic composite quarks at the LHC
Production of exotic composite quarks at the LHC Open
We consider the production at the LHC of exotic composite quarks of charge\n$Q=+(5/3) e$ and $Q=-(4/3) e$. Such states are predicted in composite models of\nhigher isospin multiplets ($I_W=1$ or $I_W=3/2$). Given their exotic charges\n(suc…
View article: The path to high-energy electron-positron colliders: from Wideroe's betatron to Touschek's AdA and to LEP
The path to high-energy electron-positron colliders: from Wideroe's betatron to Touschek's AdA and to LEP Open
We describe the road which led to the construction and exploitation of electron positron colliders, hightlighting how the young physics student Bruno Touschek met the Norwegian engineer Rolf Wideroe in Germany, during WWII, and collaborate…
View article: Photoproduction with a mini-jet model and Cosmic Ray showers
Photoproduction with a mini-jet model and Cosmic Ray showers Open
We present post-LHC updates of estimates of the total photo-production cross section in a mini-jet model with infrared soft gluon resummation, and apply the model to study Cosmic Ray shower development, comparing the results with those obt…
View article: Inelastic cross section and survival probabilities at the LHC in minijet models
Inelastic cross section and survival probabilities at the LHC in minijet models Open
Recent results for the total and inelastic hadronic cross-sections from LHC experiments are compared with predictions from a single channel PDF driven eikonal mini-jet model and from an empirical model. The role of soft gluon resummation i…
View article: Introduction to the physics of the total cross section at LHC
Introduction to the physics of the total cross section at LHC Open
This review describes the development of the physics of hadronic cross\nsections up to recent LHC results and cosmic ray experiments. We present here a\ncomprehensive review - written with a historical perspective - about total\ncross-sect…
View article: Mini-Proceedings, 18th meeting of the Working Group on Radiative Corrections and MC Generators for Low Energies
Mini-Proceedings, 18th meeting of the Working Group on Radiative Corrections and MC Generators for Low Energies Open
The mini-proceedings of the 18$^{\mathrm{th}}$ Meeting of the "Working Group on Radiative Corrections and MonteCarlo Generators for Low Energies" held in Frascati, 19$^{\mathrm{th}}$ - 20$^{\mathrm{st}}$ May, are presented. These meetings,…