English
Related papers

Related papers: Improving Optics Control and Measurement at RHIC

200 papers

The PHOBOS experiment is well positioned to obtain crucial information about relativistic heavy ion collisions at RHIC, combining a multiplicity counter with a multi-particle spectrometer. The multiplicity arrays will measure the charged…

Following the Phase-II upgrade during Long Shutdown (LS3), the LHC aims to reach a peak instantaneous luminosity of $7.5\times 10^{34}$cm$^{-2}$s$^{-1}$, which corresponds to an average of around 200 inelastic proton-proton collisions per…

An innovatory interaction region has been recently conceived and realized on the Frascati DA{\Phi}NE lepton collider. The concept of tight focusing and small crossing angle adopted to achieve high luminosity in multibunch collisions has…

Accelerator Physics · Physics 2015-05-30 Catia Milardi , Miro Andrea Preger , Pantaleo Raimondi , Francesco Sgamma

Muon collider is a promising candidate for the next energy frontier machine. However, in order to obtain peak luminosity in the 1035/cm2/s range the collider lattice design must satisfy a number of stringent requirements, such as low beta…

Accelerator Physics · Physics 2012-02-03 Y. Alexahin , E. Gianfelice-Wendt , A. Netepenko

Recent experimental results obtained at the Relativistic Heavy-Ion Collider (RHIC) will be discussed. Investigations of different nucleus-nucleus collisions in recent years focus on two main tasks, namely, the detailed study of sQGP…

Nuclear Experiment · Physics 2015-08-05 V. A. Okorokov

The OLYMPUS experiment measured the cross-section ratio of positron-proton elastic scattering relative to electron-proton elastic scattering to look for evidence of hard two-photon exchange. To make this measurement, the experiment…

Instrumentation and Detectors · Physics 2017-10-10 A. Schmidt , C. O'Connor , J. C. Bernauer , R. Milner

The sPHENIX detector to be installed at RHIC in 2022 is designed to precisely measure jets, jet correlations, and dilepton pairs in heavy-ion collisions. With these measurements in mind, sPHENIX will employ a compact TPC covering 20cm < r <…

Instrumentation and Detectors · Physics 2022-12-13 Henry T. Klest

This paper presents the lattice design and optics ramping strategy for the cooling section of the Hadron Storage Ring (HSR) at the Electron-Ion Collider (EIC). The main challenge is that available tuning knobs exceed beam-optics…

Accelerator Physics · Physics 2025-05-01 Derong Xu

At the Relativistic Heavy Ion Collider (RHIC), magnets are ramped from injection energy to storage energy in several min utes where it is to remain for several hours. The path up the ramp is marked by 'StepStones' where the the optics of…

Accelerator Physics · Physics 2007-05-23 Johannes van Zeijts

We summarize how future measurements of electromagnetic (e.m.) probes at the Relativistic Heavy Ion Collider (RHIC), in connection with theoretical analysis, can advance our understanding of strongly interacting matter at high energy…

Nuclear Experiment · Physics 2008-11-26 G. David , R. Rapp , Z. Xu

In polarized proton operation, the performance of the Relativistic Heavy Ion Collider (RHIC) is limited by the head-on beam-beam effect. To overcome this limitation, two electron lenses are under commissioning. We give an overview of…

The interference between optical beams of different polarizations plays a fundamental role in reproducing the optical analog of the electron spin weak measurement. The extraordinary point in optical weak measurements is represented by the…

Optics · Physics 2015-06-23 Manoel P. Araujo , Stefano De Leo , Gabriel G. Maia

Some applications in scientific imaging, like space-based high-precision photometry, benefit from a detailed characterization of the sensitivity variation within a pixel. A detailed map of the intra-pixel sensitivity (IPS) allows to…

Instrumentation and Methods for Astrophysics · Physics 2018-05-07 Swaraj Bandhu Mahato , Joris De Ridder , Guy Meynants , Gert Raskin , Hans Van Winckel

Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV are presented. The luminosity is independently determined using several detectors and multiple…

High Energy Physics - Experiment · Physics 2015-03-17 The ATLAS Collaboration

Design of a muon collider interaction region (IR) presents a number of challenges arising from low {\beta} * < 1 cm, correspondingly large beta-function values and beam sizes at IR magnets, as well as the necessity to protect…

Accelerator Physics · Physics 2012-02-02 Y. I. Alexahin , E. Gianfelice-Wendt , V. V. Kashikhin , N. V. Mokhov , A. V. Zlobin , V. Y. Alexakhin

Context. The High Resolution Telescope of the Polarimetric and Helioseismic Imager on Solar Orbiter (SO/PHI-HRT) operates in an extreme observational environment, observing the Sun as close as $0.28$ au. The high thermal load and large…

Design of a muon collider interaction region (IR) presents a number of challenges arising from low {\beta}* < 1 cm, correspondingly large beta-function values and beam sizes at IR magnets, as well as the necessity to protect superconducting…

Accelerator Physics · Physics 2015-06-04 Y. I. Alexahin , E. Gianfelice-Wendt , V. V. Kashikhin , N. V. Mokhov , A. V. Zlobin , V. Y. Alexakhin

We propose a method to simultaneously correct linear optics errors and linear coupling for storage rings using turn-by-turn (TbT) beam position monitor (BPM) data. The independent component analysis (ICA) method is used to isolate the…

Accelerator Physics · Physics 2016-06-22 Xi Yang , Xiaobiao Huang

The International Linear Collider (ILC) is a proposed electron-positron collider with a center-of-mass energy of 500~GeV, and a peak luminosity of $2 \cdot 10^{34}~\mathrm{cm}^{-2}\mathrm{s}^{-1}$. The ILC will complement the Large Hadron…

Accelerator Physics · Physics 2010-10-29 Iftach Sadeh

Interferometry can completely redirect light, providing the potential for strong and controllable optical forces. However, small particles do not naturally act like interferometric beamsplitters, and the optical scattering from them is not…