The current research paradigm is one of data-driven research. Researchers are beginning to deploy computer facilities to produce and analyze large amounts of data. As requirements for computing power grow, data processing in traditional workstations is always under pressure for efficient resource management. In such an environment, a tremendous amount of data is being processed using parallel computing for efficient and effective research results. HTCondor, as an example, provides computing power for data analysis for researchers. Although such a system works well in a traditional computing cluster environment, we need an efficient methodology to meet the ever-increasing demands of computing using limited resources. In this paper, we propose an approach to integrating clusters that can share their computing power on the basis of a priority policy. Our approach makes it possible to share worker nodes while maintaining the resources allocated to each group. In addition, we have utilized the historical data of user usage in order to analyze problems that have occurred during job execution due to resource sharing and the actual operating results. Our findings can provide a reasonable guideline for limited computing powers shared by multiple scientific groups.

A bstract: The measurement of hyperon (Λ and $$\overline{\Lambda }$$ ) polarization along the beam axis in Pb-Pb collisions at $$\sqrt{{s}_{\text{N}\text{N}}}=5.36$$ TeV using the ALICE detector is presented. The polarization, arising from vorticity components induced by anisotropic flow, is studied relative to the second- and third-order event planes. The measured polarization exhibits clear azimuthal sine modulations, providing the first observation of polarization along the beam direction measured relative to the third-order event plane at the Large Hadron Collider. The values of the polarization measured with respect to the second-order event plane are consistent with previous measurements at $$\sqrt{{s}_{\text{N}\text{N}}}=5.02$$ TeV and show improved statistical precision owing to the larger data sample. Comparisons with hydrodynamic calculations indicate that the measured polarization is sensitive to the bulk viscosity and the vortical structure of the quark-gluon plasma, offering new constraints on its transport properties. In particular, the polarization measured relative to the third-order event plane is expected to provide an additional and independent input to constrain both bulk and shear viscosities of the quark-gluon plasma.

A bstract: This Paper presents rapidity-differential measurements of coherent J /ψ and ψ (2S) photoproduction, as well as rapidity- and mass-differential measurements of exclusive dimuon production, in the forward rapidity region −4 < y < −2 . 5 in ultra-peripheral Pb–Pb collisions at $$\sqrt{{s}_{\text{NN}}}=5.36$$ TeV using data recorded by the ALICE detector at the LHC in 2023, corresponding to an integrated luminosity of ℒ = 1170 ± 50 μ b ^{− 1} . The J /ψ and ψ (2S) results reveal the significant role of nuclear shadowing effects. The square root of the ratio of the measured quarkonium cross section to the impulse approximation prediction is about 0.76 for J /ψ and 0.71 for ψ (2S), at y ≈ −3, corresponding to typical Bjorken- x values of 10 ^{− 2} . The exclusive dimuon results highlight the sensitivity of such measurements to precise modeling of the photon flux, particularly at impact parameters near the nuclear radius.

The ALICE Collaboration has measured the azimuthal correlation between trigger isolated-prompt photons and associated charged hadrons in Pb–Pb collisions at the CERN LHC, at a centre-of-mass energy per nucleon pair of $$\sqrt{s_{\textrm{NN}}}~=~5.02$$ s NN = 5.02 TeV. The trigger isolated-prompt photons are measured in the transverse-momentum range $$18<p_{\textrm{T}}^{\gamma }<40$$ 18 < p T γ < 40 GeV/ c and pseudorapidity range $$|\eta ^{\gamma }| <0.67$$ | η γ | < 0.67 . The isolation selection is based on a charged particle isolation momentum threshold $$p_{\textrm{T}}^{\mathrm{iso,\,ch}} = 1.5$$ p T iso , ch = 1.5 GeV/ c within a cone of radius $$R=0.2$$ R = 0.2 . The associated charged particles are measured in the transverse-momentum ranges $$p_{\textrm{T}}^{\textrm{h}} > 1.8$$ p T h > 1.8 GeV/ c and pseudorapidity $$|\eta ^{{\textrm{h}}}| <0.9$$ | η h | < 0.9 . The yield D( $$z_{\textrm{T}}$$ z T ) of associated hadrons per trigger, with $$z_{\textrm{T}} = p_{\textrm{T}}^{{\textrm{h}}}/p_{\textrm{T}}^{\gamma }$$ z T = p T h / p T γ , is measured in three Pb–Pb collision centrality classes: central (0–30%), semicentral (30–50%), and peripheral (50–90%). The D( $$z_{\textrm{T}}$$ z T ) measurement in pp collisions with the same $$p_{\textrm{T}}^{\gamma }$$ p T γ interval was too limited statistically, but at a lower $$p_{\textrm{T}}^{\gamma }$$ p T γ interval, showing agreement with theoretical predictions. Therefore, an approximation to the standard $$I_{\textrm{AA}}$$ I AA is computed from the D( $$z_{\textrm{T}}$$ z T ) conditional yields, using NLO pQCD predictions as pp reference, the $$I_{\textrm{pQCD}}$$ I pQCD . A strong suppression of this ratio is observed in central collisions compared to peripheral collisions. The result extends to a lower $$p_{\textrm{T}}^{\gamma }$$ p T γ relative to those reported in previously published Pb–Pb collisions measurements at $$\sqrt{s_{\textrm{NN}}}~=~5.02$$ s NN = 5.02 TeV. The $$I_{\textrm{pQCD}}$$ I pQCD measurement is compared to $$I_{\textrm{AA}}$$ I AA calculations with an NLO pQCD model that includes energy loss, and to the CoLBT-hydro model. The $$I_{\textrm{pQCD}}$$ I pQCD results from central collisions are also compared with $$I_{\textrm{AA}}$$ I AA measurements of jets correlated with isolated-prompt photons and of hadrons correlated with $$\hbox {Z}^{0}$$ Z 0 bosons, both reported by the CMS Collaboration at the LHC, as well as with direct photon–hadron correlation $$I_{\textrm{AA}}$$ I AA measurements reported by the PHENIX and STAR Collaborations at RHIC.