2022
DOI: 10.1088/1748-0221/17/05/p05009
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Centrality determination in heavy-ion collisions with the LHCb detector

Abstract: The centrality of heavy-ion collisions is directly related to the created medium in these interactions. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at √s NN = 5 TeV and lead-neon fixed-target collisions at √s NN = 69 GeV. The energy deposits in the electromagnetic calorimeter are used to determine and define the centrality classes. The correspondence between the number of participants and the centrality… Show more

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Cited by 10 publications
(3 citation statements)
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“…A detailed description of the centrality estimation in the LHCb experiment can be found in ref. [53]. The method is based on a binned fit of the total energy deposit in ECAL with the GMC model in MB data, collected with the same trigger conditions as that of the signal sample.…”
Section: Centrality Determinationmentioning
confidence: 99%
“…A detailed description of the centrality estimation in the LHCb experiment can be found in ref. [53]. The method is based on a binned fit of the total energy deposit in ECAL with the GMC model in MB data, collected with the same trigger conditions as that of the signal sample.…”
Section: Centrality Determinationmentioning
confidence: 99%
“…The data sample used to calculate Λ + 𝑐 /𝐷 0 is selected by 1000 < 𝑁 𝑐 < 10000 which 𝑁 𝑐 is the number of clusters in VELO detector. The Glauber Monte Carlo (GMC) [9] is used to estimate the centrality (corresponds to 65-90%) and the mean number of nucleons participating in the collision (< N part >) from recorded data [10]. The Figure 4 shows the cross-sections ratio Λ + 𝑐 /𝐷 0 has no dependence on < N part > and is lower than the results from STAR collaboration in AuAu collisions [11] in different < N part > intervals.…”
Section: Tevmentioning
confidence: 99%
“…GeV as a function of the average number of binary nucleon-nucleon collisions (𝑁 coll ). This last parameter is estimated using the Glauber model [10]. The 𝜎 𝐽/𝜓 /𝜎 𝐷 0 in nuclear collisions is assumed to have the functional form 𝜎 𝐴𝐵 𝐽/𝜓 /𝜎 𝐴𝐵 𝐷 0 = (𝜎 𝑝 𝑝 𝐽/𝜓 /𝜎 𝑝 𝑝 𝐷 0 ) × 𝐴𝐵 𝛼 ′ −1 , when describing suppression due to cold nuclear matter effects such as nuclear absorption.…”
Section: Hidden and Open Charm Production Inmentioning
confidence: 99%