Abstract
A brief recollection of the problems related to a significant hyperon polarization observed in pp-collisions is given with an emphasis on the general role of spin in the dynamics of hadron interactions. The old, unsolved problem of the observation of a significant hyperon polarization can provide new insights as a result of the measurements of energies at the LHC; in combination with other measurements, these can be used to tag the QGP formation in pp-collisions with colliding beams. Polarization studies in the processes of hyperon production do not require the use of polarized beams or targets and can be performed in the existing experimental environment at the LHC. Model predictions based on the chiral dynamics and pictures of the impact parameter are presented for the illustration of a possible dynamical mechanism that leads to a hyperon polarization.
Highlights
A feasible experimental direction for spin studies with existing unpolarized beams in the collider mode can be the use of self-analyzing particle decays, the most well-known example of which is the weak decay of the Λ-hyperon
The most interesting and persistent long-term spin effect was observed in inclusive hyperon production in collisions of unpolarized hadron beams
Hyperon polarization measurements at the LHC are important for studies of the energy dependence of spin effects
Summary
A feasible experimental direction for spin studies with existing unpolarized beams in the collider mode can be the use of self-analyzing particle decays, the most well-known example of which is the weak decay of the Λ-hyperon (cf., e.g., [3]). The most interesting and persistent long-term spin effect was observed in inclusive hyperon production in collisions of unpolarized hadron beams. For this purpose, we discuss the mechanism leading to a nondecreasing energy dependence of the transverse polarization of Λ produced in pp-collisions. We discuss the colliding beam mode of the LHC and do not concern ourselves with the program of spin studies through the use of a polarized fixed target [11]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
