Progress towards the first measurement of charm baryon dipole moments

Abstract

Electromagnetic dipole moments of short-lived particles are sensitive to physics within and beyond the Standard Model of particle physics but have not been accessible experimentally to date. To perform such measurements it has been proposed to exploit the spin precession of channeled particles in bent crystals at the LHC. Progress that enables the first measurement of charm baryon dipole moments is reported. In particular, the design and characterization on beam of silicon and germanium bent crystal prototypes, the optimization of the experimental setup, and advanced analysis techniques are discussed. Sensitivity studies show that first measurements of ${\Lambda }_c^{+}$ and ${\Xi }_c^{+}$ baryon dipole moments can be performed in two years of data taking with an experimental setup positioned upstream of the LHCb detector.

15 pages, 12 figures, aligned with published version

References in corpus (7)

• Glauber Modeling in High Energy Nuclear Collisions
• Performance of the LHCb Vertex Locator
• Muon g-2: Review of Theory and Experiment
• Fragmentation fractions of c and b quarks into charmed hadrons at LEP
• Improved limits on the hadronic and semi-hadronic CP violating parameters and role of a dark force carrier in the electric dipole moment of ${}^{199}$Hg
• Novel method for the direct measurement of the tau lepton dipole moments
• Strong CP violation in spin-1/2 singly charmed baryons

Cited by in corpus (17)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Radiative M1 transitions of heavy baryons: Effective Quark Mass Scheme
• Weinberg operator contribution to the nucleon electric dipole moment in the quark model
• Amplitude analysis of the ${\Lambda }_c^{+}\to p{K}^{-}{\pi }^{+}$ decay and ${\Lambda }_c^{+}$ baryon polarization measurement in semileptonic beauty hadron decays
• Geant4 simulation model of electromagnetic processes in oriented crystals for accelerator physics
• Screening of quark charge and mixing effects on transition moments and M1 decay widths of baryons
• Improved indirect limits on charm and bottom quark EDMs
• Bent Crystal Design and Characterization for High-Energy Physics Experiments
• Recent advances in charm mixing and $CP$ violation at LHCb
• ${\Lambda }_{\mathrm{c}}^{+}$ polarimetry using the dominant hadronic mode
• Electromagnetic polarizabilities of the spin-$\frac{1}{2}$ singly heavy baryons in heavy baryon chiral perturbation theory
• Improved experimental layout for dipole moment measurements at the LHC
• Weinberg operator contribution to the CP-odd nuclear force in the quark model
• Observation of Fine Structure in Channeling of Particles in Bent Crystals
• Mass spectrum and magnetic moments of singly-charmed baryons: a quark-diquark model analysis of ${\Omega }_c(3185{)}^0$ and ${\Omega }_c(3327{)}^0$
• Amplitude analysis of the ${\Xi }_c^{+}\to p{K}^{-}{\pi }^{+}$ decay and ${\Xi }_c^{+}$ baryon polarization measurement in semileptonic beauty-hadron decays
• Electric dipole moments of baryons with bottom quarks