Two-loop leading colour helicity amplitudes for W±γ+ j production at the LHC

S Badger, HB Hartanto, J Kryś, S Zoia - Journal of High Energy Physics, 2022 - Springer
A bstract We present the two-loop leading colour QCD helicity amplitudes for the process
pp→ W (→ lν) γ+ j. We implement a complete reduction of the amplitudes, including the …

Masses and radiative decay widths of - and -wave singly, doubly, and triply heavy charm and bottom baryons

E Ortiz-Pacheco, R Bijker - Physical Review D, 2023 - APS
We present a study of mass spectra and electromagnetic couplings of S-and P-wave
baryons containing one, two or three heavy quarks, either charm (c) or bottom (b), in the …

[HTML][HTML] Wγ production at NNLO+ PS accuracy in GENEVA

T Cridge, MA Lim, R Nagar - Physics Letters B, 2022 - Elsevier
We present an event generator for the process pp→ ℓ ν ℓ γ at next-to-next-to-leading order
(NNLO) in QCD and matched to the Pythia8 parton shower. The calculation makes use of …

Radiative transitions of heavy baryons: Effective quark mass scheme

A Hazra, S Rakshit, R Dhir - Physical Review D, 2021 - APS
We calculate the magnetic moments of ground state JP= 1 2+ and JP= 3 2+ heavy flavor
charm and bottom baryon states employing the concept of effective mass based on single …

Screening of the quark charge and mixing effects on transition moments and decay widths of baryons

B Mohan, T Mary S, A Hazra, R Dhir - Physical Review D, 2022 - APS
Motivated by the precision measurements of heavy flavor baryon masses, we analyze the
modification of quark charge by employing the screening effect inside the baryon. In …

Molecular , , and states

WF Wang, A Feijoo, J Song, E Oset - Physical Review D, 2022 - APS
We study the interaction of meson-baryon coupled channels carrying quantum numbers of Ω
cc, Ω bb, and Ω bc presently under investigation by the LHCb Collaboration. The interaction …

Unitarity bounds on effective field theories at the LHC

T Cohen, J Doss, X Lu - Journal of High Energy Physics, 2022 - Springer
A bstract Effective Field Theory (EFT) extensions of the Standard Model are tools to compute
observables (eg cross sections with partonic center-of-mass energy\(\sqrt {\hat {s}}\)) as a …

Investigation of anomalous triple gauge couplings in μγ collision at multi-TeV muon colliders

S Spor, M Köksal - Canadian Journal of Physics, 2023 - cdnsciencepub.com
The pursuit of discovery in particle physics has always required study at the highest possible
energies. Multi-TeV muon colliders, which have important advantages, offer unprecedented …

Role of polarizations and spin-spin correlations of in at to probe anomalous couplings

A Subba, RK Singh - Physical Review D, 2023 - APS
We study anomalous W-W+ Z/γ couplings due to dimension-6 operators in the production
process e-e+→ W-W+ followed by semileptonic decay using polarizations and spin-spin …

Landscape of heavy baryons from the perspective of the chiral quark-soliton model

MV Polyakov, M Praszałowicz - Physical Review D, 2022 - APS
We employ the chiral quark-soliton model and the heavy quark symmetry to describe spectra
of charm and beauty baryons. Heavy baryons can be classified according to the SU (3) …