Showing 2020 · hep-phShow all

21 papers · 2 filters

hep-ph2020★ 31 cited

Jet radiation in a longitudinally expanding medium

Paul Caucal, Edmond Iancu, Gregory Soyez

In a series of previous papers, we have presented a new approach, based on perturbative QCD, for the evolution of a jet in a dense quark-gluon plasma. In the original formulation,…

hep-ph2020★ 35 cited

Forbidden Dark Matter Annihilations into Standard Model Particles

Raffaele Tito D'Agnolo, Di Liu, Joshua T. Ruderman +1

We present kinematically forbidden dark matter annihilations into Standard Model leptons. This mechanism precisely selects the dark matter mass that gives the observed relic abunda…

hep-ph2020★ 19 cited

Saturation effects in SIDIS at very forward rapidities

E. Iancu, A. H. Mueller, D. N. Triantafyllopoulos +1

Using the dipole picture for electron-nucleus deep inelastic scattering at small Bjorken , we study the effects of gluon saturation in the nuclear target on the cross-section fo…

hep-ph2020★ 43 cited

The Weak Scale as a Trigger

Nima Arkani-Hamed, Raffaele Tito D'Agnolo, Hyung Do Kim

Does the value of the Higgs mass parameter affect the expectation value of local operators in the Standard Model? For essentially all local operators the answer to this question is…

hep-ph2020★ 24 cited

Disformal Dark Matter

Philippe Brax, Kunio Kaneta, Yann Mambrini +1

We generalize dark matter production to a two-metric framework whereby the physical metric, which couples to the Standard Model (SM), is conformally and/or disformally related to t…

hep-ph2020★ 82 cited

Colour and logarithmic accuracy in final-state parton showers

Keith Hamilton, Rok Medves, Gavin P. Salam +2

Standard dipole parton showers are known to yield incorrect subleading-colour contributions to the leading (double) logarithmic terms for a variety of observables. In this work, co…

hep-ph2020★ 26 cited

Light quark Yukawas in triboson final states

Adam Falkowski, Sanmay Ganguly, Phillippe Gras +4

Triple heavy vector boson production, , has recently been observed for the first time. We propose that precision measurements of this process provide an e…

hep-ph2020★ 20 cited

Photon-photon physics at the LHC and laser beam experiments, present and future

L. Schoeffel, C. Baldenegro, H. Hamdaoui +3

Under certain running conditions, the CERN Large Hadron Collider (LHC) can be considered as a photon-photon collider. Indeed, in proton-proton, proton-ion, ion-ion collisions, when…

hep-ph2020★ 6 cited

Displaced Vertex signatures of a pseudo-Goldstone sterile neutrino

Stéphane Lavignac, Anibal D. Medina

Low-scale models of neutrino mass generation often feature sterile neutrinos with masses in the GeV-TeV range, which can be produced at colliders through their mixing with the Stan…

hep-ph2020★ 47 cited

Caravel: A C++ Framework for the Computation of Multi-Loop Amplitudes with Numerical Unitarity

S. Abreu, J. Dormans, F. Febres Cordero +6

We present the first public version of Caravel, a C++17 framework for the computation of multi-loop scattering amplitudes in quantum field theory, based on the numerical unitarity…

hep-ph2020★ 34 cited

Forward dijets in proton-nucleus collisions at next-to-leading order: the real corrections

Edmond Iancu, Yair Mulian

Using the CGC effective theory together with the hybrid factorisation, we study forward dijet production in proton-nucleus collisions beyond leading order. In this paper, we comput…

hep-ph2020★ 2 cited

Probing the Top-Higgs Sector with Composite Higgs Models at Present and Future Hadron Colliders

Carlos Bautista, Leonardo de Lima, Ricardo D. Matheus +3

We study the production of and at hadron colliders, in the minimal Composite Higgs Models, based on the coset . We explore the fermionic rep…

hep-ph2020★ 152 cited

Diquark Correlations in Hadron Physics: Origin, Impact and Evidence

M. Yu. Barabanov, M. A. Bedolla, W. K. Brooks +24

The last decade has seen a marked shift in how the internal structure of hadrons is understood. Modern experimental facilities, new theoretical techniques for the continuum bound-s…

hep-ph2020★ 3 cited

Triple-X and beyond: hadronic systems of three and more X(3872)

Lorenzo Contessi, Johannes Kirscher, Manuel Pavon Valderrama

The resonance has been conjectured to be a charm meson-antimeson two-body molecule. Meanwhile, there is no experimental evidence for larger, few-body co…

hep-ph2020★ 69 cited

Heterodyne Broadband Detection of Axion Dark Matter

Asher Berlin, Raffaele Tito D'Agnolo, Sebastian A. R. Ellis +1

We propose a new broadband search strategy for ultralight axion dark matter that interacts with electromagnetism. An oscillating axion field induces transitions between two quasi-d…

hep-ph2020★ 44 cited

Crunching Dilaton, Hidden Naturalness

Csaba Csaki, Raffaele Tito D'Agnolo, Michael Geller +1

We introduce a new approach to the Higgs naturalness problem, where the value of the Higgs mass is tied to cosmic stability and the possibility of a large observable Universe. The…

hep-ph2020★ 32 cited

Calculating the primary Lund Jet Plane density

Andrew Lifson, Gavin P. Salam, Gregory Soyez

The Lund-jet plane has recently been proposed as a powerful jet substructure tool with a broad range of applications. In this paper, we provide an all-order single logarithmic calc…

hep-ph2020★ 180 cited

Parton distributions and lattice QCD calculations: toward 3D structure

Martha Constantinou, Aurore Courtoy, Markus A. Ebert +24

The strong force which binds hadrons is described by the theory of Quantum Chromodynamics (QCD). Determining the character and manifestations of QCD is one of the most important an…

hep-ph2020★ 34 cited

Towards Machine Learning Analytics for Jet Substructure

Gregor Kasieczka, Simone Marzani, Gregory Soyez +1

The past few years have seen a rapid development of machine-learning algorithms. While surely augmenting performance, these complex tools are often treated as black-boxes and may i…

hep-ph2020★ 87 cited

Two-Loop Integrals for Planar Five-Point One-Mass Processes

S. Abreu, H. Ita, F. Moriello +3

We present the computation of a full set of planar five-point two-loop master integrals with one external mass. These integrals are an important ingredient for two-loop scattering…

hep-ph2020★ 8 cited

Nuclear -broadening of Drell-Yan and quarkonium production from SPS to LHC

François Arleo, Charles-Joseph Naïm

The nuclear -broadening of Drell-Yan and quarkonium (, ) production in A and pA collisions is investigated. The world data follow a simple scaling from SPS to L…