activity
20242026
collaborators

7 papers

hep-ex2026

First Observation of an Exotic Reggeon

G. D. Alexeev, M. G. Alexeev, C. Alice +180

We present new \compass high-statistics measurements of the peripheral production of and pairs in the reactions . For the…

hep-ph2026

StringSpinner 2.0: Enabling quark spin effects in PYTHIA for annihilation

A. Kerbizi, L. Lönnblad

The StringSpinner package, which implements quark spin effects in the PYTHIA event generator using the string+ model of hadronization, is extended to handle the process $e…

hep-ex2026

Addendum to multiplicities of charged pions, kaons and unidentified charged hadrons on an isoscalar target measured by COMPASS Collaboration

The COMPASS Collaboration

The COMPASS Collaboration has recently published an article "Multiplicities of positive and negative pions, kaons, and unidentified hadrons from deep-inelastic scattering of muons…

hep-ex2025

Dihadron Transverse-Spin Asymmetries in Muon-Deuteron Deep-Inelastic Scattering

G. D. Alexeev, M. G. Alexeev, C. Alice +168

In 2022, the COMPASS collaboration performed semi-inclusive measurements of deep-inelastic muon-scattering on a transversely polarised deuteron (6LiD) target. From these data, tran…

hep-ph2025

A model for baryon production in spin-dependent string fragmentation

Albi Kerbizi, Xavier Artru

We introduce spin-1/2 baryons in the string+ model of hadronization, previously restricted to the production of pseudoscalar and vector mesons. Baryons are modeled as quar…

hep-ex2025

Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with

G. D. Alexeev, M. G. Alexeev, C. Alice +160

We measured the strange-meson spectrum in the scattering reaction with the COMPASS spectrometer at CERN. Using the world's largest sample…