ALICE T0 detector

Bondila, M.; Grigoriev, V.; Guber, F.; Kaplin, V.; Karakash, A.; Karavichev, O.; Karavicheva, T.; Климов, А. И.; Kondratieva, Natalia; Kozlov, K.; Kurepin, A.; Loginov, V.; Lyapin, V.; Małkiewicz, T.; Marin, V.; Maevskaya, A.; Meleshko, E.A.; Reshetin, A.; Trzaska, W. H.; Yamaletdinov, S. R.

doi:10.1109/tns.2005.856900

Cited by 37 publications

(27 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The TOF detector measures the flight time of the particles from the interaction point. The start time of the event can be determined either from the information provided by the T0 detector [58] or via a combinatorial analysis of the particle arrival times at the TOF detector [57]. The T0 detector is composed of two arrays of Cherenkov counters located on either side of the interaction point at +350 and −70 cm from the nominal vertex position along the beam line.…”

Section: Apparatus and Data Samplesmentioning

confidence: 99%

D-meson production in p-Pb collisions at sNN=5.02

Adam¹,

Adamová²,

Aggarwal³

et al. 2016

Phys. Rev. C

View full text Add to dashboard Cite

We report on measurements of the 1S, 2S and 3S diierential cross sections d 2 =dp T dy jyj0:4 , as well as on the 1S polarization in pp collisions at p s = 1:8 TeV using a sample of 77 3 pb ,1 collected by the Collider Detector at Fermilab. The three resonances were reconstructed through the decay ! + ,. The measured angular distribution of the muons in the 1S rest frame is consistent with unpolarized meson production.

show abstract

Section: Apparatus and Data Samplesmentioning

confidence: 99%

D-meson production in p-Pb collisions at sNN=5.02

Adam¹,

Adamová²,

Aggarwal³

et al. 2016

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…The tracking detectors are located inside the solenoidal ALICE magnet, which provides a uniform magnetic field of 0.5 T along the beam direction. The T0 detector [41] was a main luminometer in the heavy-ion run. It consists of two arrays of 12 Cherenkov counters, covering −3.28 < η − 2.97 and 4.61 < η < 4.92.…”

Section: Data Taking and Track Reconstructionmentioning

confidence: 99%

Centrality dependence of pion freeze-out radii in Pb-Pb collisions atsNN=2.76 TeV

et al. 2016

View full text Add to dashboard Cite

We report on the measurement of freeze-out radii for pairs of identical-charge pions measured in Pb-Pb collisions at √ s NN = 2.76 TeV as a function of collision centrality and the average transverse momentum of the pair k T . Three-dimensional sizes of the system (femtoscopic radii), as well as direction-averaged onedimensional radii are extracted. The radii decrease with k T , following a power-law behavior. This is qualitatively consistent with expectations from a collectively expanding system, produced in hydrodynamic calculations. The radii also scale linearly with dN ch /dη 1/3 . This behavior is compared to world data on femtoscopic radii in heavy-ion collisions. While the dependence is qualitatively similar to results at smaller √ s NN , a decrease in the ratio R out /R side is seen, which is in qualitative agreement with a specific prediction from hydrodynamic models: a change from inside-out to outside-in freeze-out configuration. The results provide further evidence for the production of a collective, strongly coupled system in heavy-ion collisions at the CERN Large Hadron Collider.

show abstract

“…The present ALICE detector employs two forward detector systems, the T0 [9] and the V0 [10] that provide minimum bias trigger, multiplicity trigger, beam-gas event rejection, collision time for TOF, online multiplicity and event plane determination. In order to adapt these functionalities to the collision rates of the ALICE upgrade, it is necessary to find a new solution with the Fast Interaction Trigger.…”

Section: The Fast Interaction Triggermentioning

confidence: 99%

The Fast Interaction Trigger Upgrade for ALICE

García-Solis¹

2017

Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016)

View full text Add to dashboard Cite

The ALICE Collaboration is preparing a major detector upgrade for the second LHC long shutdown . The LHC heavy-ion luminosity and collision rate from 2021 onwards will considerably exceed the design parameters of the present ALICE forward trigger detectors. Furthermore, the introduction of a new Muon Forward Tracker (MFT) will significantly reduce the space available for the upgraded trigger detectors. To comply with these conditions a Fast Interaction Trigger (FIT) has been designed. FIT will be the primary forward trigger, luminosity, and collision time measurement detector. The FIT will be capable of triggering at an interaction rate of 50 kHz, with a time resolution better than 30 ps, with 99% efficiency. It will also determine multiplicity, centrality, and reaction plane. FIT will consist of two arrays of Cherenkov radiators with MCP-PMT sensors and of a single, large-size scintillator ring. The arrays will be placed on both sides of the interaction point (IP). Because of the presence of the hadron absorber of the muon spectrometer, the placement of the FIT detectors will be asymmetric: one array at about 800 mm from the IP on the absorber side and and the other array together with the scintillator ring at around 3200 mm from IP on the opposite side. Scheduled for installation in 2020, FIT is in the midst of an intense R&D and prototyping period. The timing, amplitude and efficiency characteristics are determined with relativistic particles and with lasers. The ongoing Monte Carlo studies verify the physics performance and refine the geometry of the FIT arrays. This report gives a short description of FIT, a summary of the performance, and the outcome of the simulations and beam tests.

show abstract

ALICE T0 detector

Cited by 37 publications

References 3 publications

D-meson production in p-Pb collisions at sNN=5.02

D-meson production in p-Pb collisions at sNN=5.02

Centrality dependence of pion freeze-out radii in Pb-Pb collisions atsNN=2.76 TeV

The Fast Interaction Trigger Upgrade for ALICE

Contact Info

Product

Resources

About