Perspectives of a Midrapidity Dimuon Program at RHIC: A Novel and Compact Muon Telescope Detector
L. Ruan, G. Lin, Z. Xu, K. Asselta, H. F. Chen, W. Christie, H. J. Crawford, J. Engelage, G. Eppley, T. J. Hallman, C. Li, J. Liu, W. J. Llope, R. Majka, T. Nus… 展开作者
L. Ruan, G. Lin, Z. Xu, K. Asselta, H. F. Chen, W. Christie, H. J. Crawford, J. Engelage, G. Eppley, T. J. Hallman, C. Li, J. Liu, W. J. Llope, R. Majka, T. Nussbaum, J. Scheblein, M. Shao, R. Soja, Y. Sun, Z. Tang, X. Wang, Y. Wang
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18 pages, 10 figures, add more references, accepted by Journal of Physics G
We propose a large-area, cost-effective Muon Telescope Detector (MTD) for the Solenoidal Tracker at RHIC (STAR) at mid-rapidity and for the next generation of detectors at a possible electron-ion collider. We utilize Multi-gap Resistive Plate Chambers with large modules and long readout strips (Long-MRPC) in the detector design. The results from cosmic ray and beam tests show the intrinsic timing and spatial resolution for a Long-MRPC are 60-70 ps and $\sim1$ cm, respectively. The prototype performance of such a novel muon telescope detector at STAR indicates that muon identification at the transverse momentum of a few GeV/$c$ can be achieved through the combined information of track matching with the MTD, ionization energy loss in the Time Projection Chamber, and time-of-flight measurements. A primary muon over secondary muon ratio of better than 1/3 can be achieved. This provides a promising device for future quarkonium programs and primordial dilepton measurements at RHIC. Simulations of the muon efficiency, the signal-to-background ratio of $J/ψ$, the separation of $Υ$ 1S from 2S+3S states, and the electron-muon correlation from charm pair production in the RHIC environment are presented.
Transverse Single-Spin Asymmetries of Midrapidity $π^{0}$ and $η$ Mesons in $\sqrt{s_{NN}} = 200$ GeV $p^{\uparrow}+$Au and $p^{\uparrow}+$Al Collisions from PHENIX
