243 citations · 2.3k across the 48 of their papers we have counts for
48 papers
Eikonal Scattering of Two D0-branes with Graviton Emission
Paolo Di Vecchia, Dawid Maskalaniec
We study the emission of a massless closed-string state in the scattering of two D0-branes using the boundary-state formalism. We compute the corresponding five-point amplitudes fo…
Revisiting the - tension in QCD from a 1PI-action perspective
Paolo Di Vecchia, Francesco Sannino, Graham M. Shore +2
We discuss the tension one encounters in trying to solve, simultaneously, the and strong- problems in QCD with light quarks and a small angle within QCD itself.…
Logarithmic soft theorems and soft spectra
Francesco Alessio, Paolo Di Vecchia, Carlo Heissenberg
Using universal predictions provided by classical soft theorems, we revisit the energy emission spectrum for gravitational scatterings of compact objects in the low-frequency expan…
2PM waveform from loop corrected soft theorems
Francesco Alessio, Paolo Di Vecchia
We introduce a classical version of the loop corrected soft graviton theorem and we use it to compute the universal part of the one-loop (2PM) waveform up to sub-subleading order i…
The gravitational eikonal: from particle, string and brane collisions to black-hole encounters
Paolo Di Vecchia, Carlo Heissenberg, Rodolfo Russo +1
Motivated by conceptual problems in quantum theories of gravity, the gravitational eikonal approach, inspired by its electromagnetic predecessor, has been successfully applied to t…
Classical Gravitational Observables from the Eikonal Operator
Paolo Di Vecchia, Carlo Heissenberg, Rodolfo Russo +1
We propose two possible eikonal operators encoding the effects of classical radiation as coherent states of gravitons and show how to compute from them different classical observab…
The eikonal operator at arbitrary velocities I: the soft-radiation limit
Paolo Di Vecchia, Carlo Heissenberg, Rodolfo Russo +1
Observables related to the real part of the gravitational eikonal, such as the deflection angle and time delay, have been found so far to have a smooth post-Minkowskian (PM) expans…
Angular momentum of zero-frequency gravitons
Paolo Di Vecchia, Carlo Heissenberg, Rodolfo Russo
By following closely Weinberg's soft theorem, which captures the pole contribution to the amplitude for soft graviton emissions () on top of an arbitrary background hard…
Second-order Post-Minkowskian scattering in arbitrary dimensions
Andrea Cristofoli, Poul H. Damgaard, Paolo Di Vecchia +1
We extract the long-range gravitational potential between two scalar particles with arbitrary masses from the two-to-two elastic scattering amplitude at 2nd Post-Minkowskian order…
The Holographic QCD Axion
Francesco Bigazzi, Alessio Caddeo, Aldo L. Cotrone +2
A holographic model of QCD axion is presented. It describes a composite axion in the KSVZ class. Having a gravity dual, based on the Witten-Sakai-Sugimoto model, it is calculable i…
Revisiting the 2PM eikonal and the dynamics of binary black holes
Arnau Koemans Collado, Paolo Di Vecchia, Rodolfo Russo
In this paper we study the two-body gravitational scattering of massive scalars with different masses in general spacetime dimensions. We focus on the Regge limit (eikonal regime)…
The Subleading Eikonal in Supergravity Theories
Arnau Koemans Collado, Paolo Di Vecchia, Rodolfo Russo +1
In this paper we study the subleading contributions to eikonal scattering in (super)gravity theories with particular emphasis on the role of both elastic and inelastic scattering p…
Soft behavior of a closed massless state in superstring and universality in the soft behavior of the dilaton
Paolo Di Vecchia, Raffaele Marotta, Matin Mojaza
We consider the tree-level scattering amplitudes in the NS-NS (Neveu-Schwarz) massless sector of closed superstrings in the case where one external state becomes soft. We compute t…
New soft theorems for the gravity dilaton and the Nambu-Goldstone dilaton at subsubleading order
Paolo Di Vecchia, Raffaele Marotta, Matin Mojaza +1
We study the soft behavior of two seemingly different particles that are both referred to as dilatons in the literature, namely the one that appears in theories of gravity and in s…
Soft Theorems from String Theory
Paolo Di Vecchia, Raffaele Marotta, Matin Mojaza
Soft behaviour of closed string amplitudes involving dilatons, gravitons and anti-symmetric tensors, is studied in the framework of bosonic string theory. The leading double soft l…
Double-soft behavior for scalars and gluons from string theory
Paolo Di Vecchia, Raffaele Marotta, Matin Mojaza
We compute the leading double-soft behavior for gluons and for the scalars obtained by dimensional reduction of a higher dimensional pure gauge theory, from the scattering amplitud…
Low-Energy Behavior of Gluons and Gravitons from Gauge Invariance
Zvi Bern, Scott Davies, Paolo Di Vecchia +1
We show that at tree level, on-shell gauge invariance can be used to fully determine the first subleading soft-gluon behavior and the first two subleading soft-graviton behaviors.…
Microscopic unitary description of tidal excitations in high-energy string-brane collisions
Giuseppe D'Appollonio, Paolo Di Vecchia, Rodolfo Russo +1
The eikonal operator was originally introduced to describe the effect of tidal excitations on higher-genus elastic string amplitudes at high energy. In this paper we provide a prec…
The leading eikonal operator in string-brane scattering at high energy
Giuseppe D'Appollonio, Paolo Di Vecchia, Rodolfo Russo +1
In this paper we present two (a priori independent) derivations of the eikonal operator in string-brane scattering. The first one is obtained by summing surfaces with any number of…
Open strings in the system D5/D9
P. Di Vecchia, R. Marotta, I. Pesando +1
We construct the six-dimensional Lagrangian for the massless twisted open strings with one end-point ending on a stack of D5 and the other on a stack of D9 branes, interacting with…
High-energy string-brane scattering: leading eikonal and beyond
Giuseppe D'Appollonio, Paolo Di Vecchia, Rodolfo Russo +1
We extend previous techniques for calculations of transplanckian-energy string-string collisions to the high-energy scattering of massless closed strings from a stack of N Dp-brane…
On the Gauge/Gravity Correspondence and the Open/Closed String Duality
Paolo Di Vecchia, Antonella Liccardo, Raffaele Marotta +1
In this article we review the conditions for the validity of the gauge/gravity correspondence in both supersymmetric and non-supersymmetric string models. We start by reminding wha…
The Gauge/Gravity Correspondence for Non-Supersymmetric Theories
P. Di Vecchia, A. Liccardo, R. Marotta +1
We review the string construction of the ``orientifold field theories'' and we show that for these theories the gauge/gravity correspondence is only valid for a large number of col…
N=2 Super Yang-Mills and the XXZ spin chain
P. Di Vecchia, A. Tanzini
We analyse the renormalisation properties of composite operators of scalar fields in the N=2 Super Yang-Mills theory. We compute the matrix of anomalous dimensions in the planar li…