53 citations · 235 across the 21 of their papers we have counts for
19 papers · 1 filter
Factorization of the triple-collinear splitting function at first order in opacity
Shahin Iqbal, Urs Achim Wiedemann
In strongly ordered collinear limits, triple-collinear splitting functions factorize into products of splitting functions. Here, we investigate whether, and under…
Extremely high-energy bremsstrahlung in matter
Peter Arnold, Joshua Bautista, Omar Elgedawy +1
The theory of bremsstrahlung by extremely high energy electrons passing through ordinary matter has been qualitatively incomplete. We revisit the suppression of bremsstr…
Calculating extremely high energy bremsstrahlung in matter
Peter Arnold, Joshua Bautista, Omar Elgedawy +1
Ultra-relativistic electrons initiate electromagnetic showers in ordinary matter that evolve through bremsstrahlung and pair production. At very high energy, the quantum mechanical…
Revisiting extremely high energy QED bremsstrahlung in matter: large modifications to the LPM effect
Peter Arnold, Joshua Bautista, Omar Elgedawy +1
Very high energy electrons initiate electromagnetic showers in ordinary matter that branch and multiply through bremsstrahlung and pair production. At extremely high energies, the…
Are Parton Showers in a Quark-Gluon Plasma Strongly Coupled? A Theorist's Test
Peter Arnold, Omar Elgedawy, Shahin Iqbal
We study whether in-medium showers of high-energy quarks and gluons can be treated as a sequence of individual splitting processes or whether there is significant quantum overlap b…
Are in-medium quark-gluon showers strongly coupled? Results in the large- limit
Peter Arnold, Omar Elgedawy, Shahin Iqbal
Inside a medium, showers originating from a very high energy particle develop via medium-induced splitting processes such as bremsstrahlung and pair production. During shower devel…
Strongly vs. weakly coupled in-medium showers: energy stopping in large- QED
Peter Arnold, Omar Elgedawy, Shahin Iqbal
Inside a medium, showers originating from a very high-energy particle may develop via medium-induced splitting processes such as hard bremsstrahlung or pair production. During show…
The LPM effect in sequential bremsstrahlung: gluon shower development
Peter Arnold, Omar Elgedawy, Shahin Iqbal
We give details of our study of whether high-energy gluon showers inside a QCD medium can be treated as a sequence of individual splitting processes , or whether there is…
Are gluon showers inside a quark-gluon plasma strongly coupled? a theorist's test
Peter Arnold, Omar Elgedawy, Shahin Iqbal
We study whether in-medium showers of high-energy gluons can be treated as a sequence of individual splitting processes , or whether there is significant quantum overlap…
The LPM effect in sequential bremsstrahlung: incorporation of "instantaneous'' interactions for QCD
Peter Arnold, Tyler Gorda, Shahin Iqbal
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the…
Thermalization of weakly coupled non-Abelian plasmas at next-to-leading order
Yu Fu, Jacopo Ghiglieri, Shahin Iqbal +1
We employ the QCD kinetic theory, including next-to-leading(NLO) order corrections in coupling constant, to study the evolution of weakly coupled non-Abelian plasmas towards therma…
The LPM effect in sequential bremsstrahlung: analytic results for sub-leading (single) logarithms
Peter Arnold, Tyler Gorda, Shahin Iqbal
Consider the in-medium splitting of a very high-energy gluon traversing a QCD medium, accounting for the Landau-Pomeranchuk-Migdal (LPM) effect. It has been known for so…
Thermalization of non-abelian gauge theories at next-to-leading order
Yu Fu, Jacopo Ghiglieri, Shahin Iqbal +1
We provide the first next-to-leading-order (NLO) weak-coupling description of the thermalization process of far-from-equilibrium systems in non-abelian gauge theory. We study isotr…
The LPM effect in sequential bremsstrahlung: nearly complete results for QCD
Peter Arnold, Tyler Gorda, Shahin Iqbal
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the…
Strong- vs. weak-coupling pictures of jet quenching: a dry run using QED
Peter Arnold, Shahin Iqbal, Tanner Rase
High-energy partons () traveling through a quark-gluon plasma lose energy by splitting via bremsstrahlung and pair production. Regardless of whether or not the quark-gluon…
In-medium loop corrections and longitudinally polarized gauge bosons in high-energy showers
Peter Arnold, Shahin Iqbal
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the…
The LPM effect in sequential bremsstrahlung: 4-gluon vertices
Peter Arnold, Han-Chih Chang, Shahin Iqbal
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the…
The LPM effect in sequential bremsstrahlung: dimensional regularization
Peter Arnold, Han-Chih Chang, Shahin Iqbal
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the…
The LPM effect in sequential bremsstrahlung
Peter Arnold, Shahin Iqbal
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the…