Improved experimental layout for dipole moment measurements at the LHC

Abstract

The electric and magnetic dipole moment of charm and bottom baryons can be measured for the first time by using bent crystal technology at the LHC. The experimental method, proposed in recent years, suffers from limited statistics, which dominates the uncertainty of the measurement. In this work, we present an alternative experimental layout, based on the use of crystal lenses, that improves the trapping efficiency by about a factor 15 (35) for a 2-cm (5-mm) target with respect to the nominal layout, with plain crystal faces. The efficiencies are evaluated taking into account the constraints from the LHC machine, and the technical challenges to realize this novel experimental method are discussed.

arXiv comment11 pages, 9 figures; version published in EPJC

References in corpus (26)

• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• The anomalous magnetic moment of the muon in the Standard Model
• Electric dipole moments as probes of new physics
• Electric Dipole Moments of Nucleons, Nuclei, and Atoms: The Standard Model and Beyond
• B-physics anomalies: a guide to combined explanations
• Search for lepton-universality violation in $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Test of lepton universality in beauty-quark decays
• Observation of $CP$ violation in charm decays
• Revisiting CP violation in $D\to PP$ and $VP$ decays
• Electromagnetic dipole moments of charged baryons with bent crystals at the LHC
• On the search for the electric dipole moment of strange and charm baryons at LHC
• Proton Extraction from IHEP Accelerator Using Bent Crystals
• Exploiting CP-asymmetries in rare charm decays
• Feasibility of measuring the magnetic dipole moments of the charm baryons at the LHC using bent crystals
• Novel method for the direct measurement of the tau lepton dipole moments
• Progress towards the first measurement of charm baryon dipole moments
• Improved bounds on heavy quark electric dipole moments
• Feasibility of tau lepton electromagnetic dipole moments measurement using bent crystal at the LHC
• CRYSTAL Simulation Code and New Coherent Effects in Bent Crystal at the LHC
• Layouts for fixed-target experiments and dipole moment measurements of short-living baryons using bent crystals at the LHC
• The prospect of charm quark magnetic moment determination
• Strong CP violation in spin-1/2 singly charmed baryons
• Electromagnetic dipole moment and time reversal invariance violating interactions for high energy short-lived particles in bent and straight crystals at Large Hadron Collider
• Extracting maximum information from polarised baryon decays via amplitude analysis: the ${\Lambda }_c^{+}\to p{K}^{-}{\pi }^{+}$ case
• Possibility to make a beam of tau-leptons and charmed particles by a channeling crystal
• Double-lens technique for efficient capture of short-lived particles by a crystal

Cited by in corpus (1)

• Weinberg operator contribution to the CP-odd nuclear force in the quark model