1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

The TWOCRYST fiber tracker: a detector to characterize precession crystals at the LHC

MOPS020
2 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC1.A25 Beyond Colliders Monday Poster Session

Speaker

Chiara Maccani (European Organization for Nuclear Research)

Description

A fixed-target experiment using two bent crystals is proposed to study the magnetic and electric dipole moments of short-lived charm baryons with unprecedented precision in the LHC. This will be achieved exploiting crystal channeling into a first crystal to extract the beam halo and then into a 7 cm long silicon crystal capable of inducing a measurable spin precession to the particles of interest. TWOCRYST is a proof-of-principle machine test scheduled for 2025, to test this setup and address the feasibility of the final experiment under LHC beam conditions. One main goal is the study of the channeling efficiency in this long crystal at TeV energies, requiring a 2D detector in movable Roman pots. The TWOCRYST Fibre Tracker, coming from the LHC's ATLAS-ALFA experiment, is a high-precision tracking detector with ten layers of crossing scintillating fibers coupled to multi-anode photomultipliers, and read out using compact front-end electronics. Intense refurbishment work was required on to adapt the detector to the purposes of TWOCRYST. This contribution summarizes the tracker specifications as derived from beam dynamics simulations and the results of tests prior to its installation.

Region represented Europe
Paper preparation format LaTeX

Author

Chiara Maccani (European Organization for Nuclear Research)

Co-authors

Gianluca Valentino (University of Malta) Krzysztof Korcyl (Institute of Nuclear Physics, Polish Academy of Sciences) Pascal Hermes (European Organization for Nuclear Research) Sune Jakobsen (European Organization for Nuclear Research)

Presentation materials

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