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|Title:||Progress towards the first measurement of charm baryon dipole moments|
De Benedetti, F.
Martinez Vidal, F.
Mazorra De Cos, J.
Ruiz Vidal, J.
|Keywords:||ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика|
|Publisher:||American Physical Society|
|Citation:||Phy Rev D 2021;103(7).|
|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 Λc+ and Ξc+ baryon dipole moments can be performed in two years of data taking with an experimental setup positioned upstream of the LHCb detector.|
|Sponsorship:||We express our gratitude to our colleagues of the LHCb collaboration in particular to M. Ferro-Luzzi, M. Palutan, C. Parkes, P. Robbe, N. Tuning, and from CERN, in particular A. Fomin, D. Mirarchi, S. Redaelli for stimulating discussions and very useful feedback. We would like to thank S. Forte and J. Rojo for useful discussions on parton distribution functions. A. Sytov thanks V. Haurylavets and A. Leukovich for providing help with geant 4 simulations. We acknowledge support from INFN (Italy), MICINN and GVA (Spain), the ERC Consolidator Grants SELDOM G. A. 771642 and CRYSBEAM G. A. 615089. In addition, we acknowledge the CINECA award under the ISCRA initiative for the availability of high performance computing resources and support.|
|Appears in Collections:||Статьи НИУ «Институт ядерных проблем»|
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|PhysRevD.103.072003.pdf||1,26 MB||Adobe PDF||View/Open|
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