output
19922026
Showing hep-phShow all

1,619 papers · 1 filter

hep-ph2026★ 1 cited

Vector Higgs-Portal Dark Matter: How UV Completion Reopens Viable Parameter Space

Halim Shaikh, Mattia Di Mauro

The particle nature of dark matter (DM) remains one of the central open problems in modern physics. Among the most extensively studied candidates are weakly interacting massive par…

hep-ph2026

Next-to-next-to-leading order event generation for production with approximate two-loop amplitude

Christian Biello, Chiara Savoini, Chiara Signorile-Signorile +1

We study Higgs-boson production in association with a top-quark pair () at hadron colliders and present the first matching of next-to-next-to-leading order (NNLO) QCD co…

hep-ph2026

Ruling Out Spiky WIMP Dark Matter using Indirect Searches

Dibya S. Chattopadhyay, P. S. Bhupal Dev, Yago Porto

The dark matter (DM) density profile in the innermost region of the Galaxy remains an open question. In particular, while adiabatic growth of the supermassive black hole Sgr A$^\as…

hep-ph2025

BSFfast: Rapid computation of bound-state effects on annihilation in the early Universe

Tobias Binder, Mathias Garny, Jan Heisig +1

Bound-state formation (BSF) can have a large impact on annihilation of new physics particles with long-range interactions in the early Universe. In particular, the inclusion of exc…

hep-ph2025★ 1 cited

-meson decay width up to corrections within and beyond the Standard Model

Martin Lang, Alexander Lenz, Ali Mohamed +2

Starting from the most general effective Hamiltonian describing non-leptonic -quark decays , we compute analytic expressions for all matching c…

hep-ph2025★ 1 cited

Scalar-Magnetometer Search for Ultralight Dark Photon Dark Matter with a Single-Site, Two-Sensor Array: A 6-Channel DTFT Likelihood Analysis with Scalar Optically Pumped Magnetometers

Peisen Zhao, Ole Behrens, Maja Benning +6

We report on a laboratory search for ultralight dark photon dark matter using a single-site, two-sensor scalar magnetometer array. The experiment employs two scalar optically pumpe…

hep-ph2025★ 3 cited

New Particles at the Z-Pole: Tera-Z factories as discovery and precision machines

Marco Drewes, Juraj Klarić, Yuan-Zhen Li

Several proposed future lepton colliders are capable of producing trillions of Z-bosons, including FCC-ee, CEPC, LEP3 and LEP-Z. Such Tera-Z factories can discover new elementary p…

hep-ph2025★ 1 cited

Modelling production for the LHC at 13.6 TeV

Christian Biello, Alessandro Gavardi, Rebecca von Kuk +10

We present new state-of-the-art predictions for Standard Model Higgs boson production in association with a bottom-quark pair (). Updated cross sections are computed in a…

hep-ph2025★ 4 cited

-Dwarfs: White Dwarfs probe Quadratically Coupled Scalars

Kai Bartnick, Konstantin Springmann, Stefan Stelzl +1

We study ultralight scalar fields with quadratic couplings to Standard-Model fermions and derive strong constraints from white-dwarf mass-radius data. Such couplings source scalar…

hep-ph2025★ 1 cited

Flavour from Fractal Mass Chains

Alejandro Ibarra, Aadarsh Singh, Sudhir K Vempati

We explore the possibility that the underlying flavour structure of the Standard Model could be determined by mass chains on a fractal geometry. We consider, as an example, the the…

hep-ph2025★ 9 cited

Unravelling Pentaquarks with Born--Oppenheimer effective theory

Nora Brambilla, Abhishek Mohapatra, Antonio Vairo

The hidden-charm pentaquark states , , , and , a…

hep-ph2025★ 6 cited

Polarized-boson pairs at NLO in the SMEFT

Ulrich Haisch, Jakob Linder, Giovanni Pelliccioli +2

We present a computation of diboson production in the channel at the Large Hadron Collider (LHC), incorporating leptonic decays of the gauge bosons and considering interm…

hep-ph2025★ 1 cited

Asymgenesis

Martin A. Mojahed, Sascha Weber

We present a framework based on the standard type-I seesaw model that relates the baryon asymmetry of the universe to the dark matter (DM) density. The framework, which we name "As…

hep-ph2025★ 2 cited

Investigating sub-MeV dark matter annihilation to neutrinos using direct detection experiments

Boris Betancourt Kamenetskaia, Jong-Chul Park, Merlin Reichard +1

Dark matter (DM) could self-annihilate into neutrinos in dense regions of the Universe. We consider the resulting flux of neutrinos from the Milky Way DM halo and derive exclusion…

hep-ph2025★ 14 cited

Bubble wall dynamics from nonequilibrium quantum field theory

Wen-Yuan Ai, Matthias Carosi, Bjorn Garbrecht +2

We derive the coupled dynamics between the bubble wall and the plasma from first principles using nonequilibrium quantum field theory. The commonly used equation of motion of the b…

hep-ph2025★ 6 cited

t-channel dark matter at the LHC -- a whitepaper

Chiara Arina, Benjamin Fuks, Luca Panizzi +67

This report, summarising work achieved in the context of the LHC Dark Matter Working Group, investigates the phenomenology of -channel dark matter models, spanning minimal setup…

hep-ph2025★ 19 cited

Warm Inflation with the Standard Model

Kim V. Berghaus, Marco Drewes, Sebastian Zell

We show for the first time that warm inflation is feasible with Standard Model (SM) gauge interactions alone. Our model consists of a minimal extension of the SM by a single scalar…

hep-ph2025★ 2 cited

State-of-the-art cross sections for ttH: NNLO predictions matched with NNLL resummation and EW corrections

Roger Balsach, Alessandro Broggio, Simone Devoto +13

We present new, state-of-the-art predictions for the associated production of the SM Higgs boson with top quarks, computed in accordance with the recommendations of the LHC Higgs W…

hep-ph2025★ 1 cited

One-Loop QCD Corrections to at

Matteo Becchetti, Maximilian Delto, Sara Ditsch +3

We present a computation of the one-loop QCD corrections to top-quark pair production in association with a boson, including terms up to order in dimensional re…

hep-ph2025★ 6 cited

Boosted dark matter from semi-annihilations in the galactic center

Boris Betancourt Kamenetskaia, Motoko Fujiwara, Alejandro Ibarra +1

In some scenarios, the dark matter relic abundance is set by the semi-annihilation of two dark matter particles into one dark matter particle and one Standard Model particle. These…

hep-ph2025★ 3 cited

A lower bound on the right-handed neutrino mass from wash-in leptogenesis

Martin A. Mojahed, Kai Schmitz, Dominik Wilken

Leptogenesis is an attractive scenario for the generation of the baryon asymmetry of the Universe that relies on the dynamics of right-handed neutrinos (RHNs) in the seesaw extensi…

hep-ph2024★ 4 cited

A tale of +jet: SMEFT effects and the Lam-Tung relation

R. Gauld, U. Haisch, J. Weiss

We derive constraints on dimension-six light-quark dipole operators within the Standard Model (SM) effective field theory, based on measurements of production at SLC and LEP, a…

hep-ph2024★ 5 cited

Minimal Electroweak Baryogenesis via Domain Walls

Jacopo Azzola, Oleksii Matsedonskyi, Andreas Weiler

The Standard Model extended by a real scalar singlet with an approximate symmetry offers a minimal framework for realizing electroweak baryogenesis (EWBG) during…

hep-ph2024

Prospects for detecting the rare heavy Higgs decay through the channel at the LHC

M. A. Arroyo-Ureña, Alejandro Ibarra, Pablo Roig +1

We study the decay of a heavy CP-even neutral Higgs into an on-shell Standard Model-like Higgs boson and two photons, , in the two-Higgs doublet model. We argue that the…