R. P. Pisani
A5042352609- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- Nuclear physics research studies
- Superconducting Materials and Applications
- Dark Matter and Cosmic Phenomena
- Statistical Methods and Bayesian Inference
- Particle Accelerators and Free-Electron Lasers
- Advanced Data Storage Technologies
- Radioactive Decay and Measurement Techniques
- Stochastic processes and statistical mechanics
- Atomic and Subatomic Physics Research
- Plasma Diagnostics and Applications
- Particle accelerators and beam dynamics
- Pediatric Urology and Nephrology Studies
- Photonic and Optical Devices
- Gamma-ray bursts and supernovae
- Cold Atom Physics and Bose-Einstein Condensates
- Distributed and Parallel Computing Systems
- Gas Dynamics and Kinetic Theory
- Algorithms and Data Compression
- Physics of Superconductivity and Magnetism
Augustana University
2014-2023
Bhabha Atomic Research Centre
2023
PHENIX laboratory
2003-2023
Banaras Hindu University
2003-2023
Charles University
2020-2023
Brookhaven National Laboratory
2010-2022
Georgia State University
2017
Duke University
2017
China Institute of Atomic Energy
2003-2014
Abilene Christian University
2003-2014
In this document the PHENIX collaboration proposes a major upgrade to detector at Relativistic Heavy Ion Collider. This upgrade, sPHENIX, enables an extremely rich jet and beauty quarkonia physics program addressing fundamental questions about nature of strongly coupled quark-gluon plasma (QGP), discovered experimentally RHIC be perfect fluid. The startling dynamics QGP on fluid-like length scales is emergent property quantum chromodynamics (QCD), seemingly implicit in Lagrangian but...
The PHENIX collaboration presents a concept for major upgrade to the detector at Relativistic Heavy Ion Collider (RHIC). This upgrade, referred as sPHENIX, brings exciting new capability RHIC program by opening and important channels experimental investigation utilizing fully luminosity of recently upgraded facility. sPHENIX enables compelling jet physics that will address fundamental questions about nature strongly coupled quark-gluon plasma discovered experimentally be perfect fluid....
A new hadron blind detector (HBD) for electron identification in high density environment has been installed the PHENIX experiment at RHIC fall of 2006. The HBD will identify low momentum electron–positron pairs to reduce combinatorial background e+e− mass spectrum, mainly region below 1 GeV/c2. is a windowless proximity-focusing Cherenkov with radiator length 50 cm, CsI photocathode and three layers gas multipliers (GEM). Pure CF4 used as gas. This proceeding describes construction details...
A Hadron Blind Detector (HBD) has been constructed as part of the detector upgrade program for PHENIX experiment at RHIC. The HBD is a proximity focused windowless Cherenkov operated with pure CF <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> that will be used to detect single and double electrons in relativistic heavy ion collisions provide additional rejection power against Dalitz pairs photon conversions. consists 50 cm long radiator...
The sPHENIX Time Projection Chamber Outer Tracker (TPOT) is a Micromegas based detector. It part of the experiment that aims to facilitate calibration Chamber, in particular correction time-averaged and beam-induced distortions electron drift. This paper describes detector mission, setup, construction, installation, commissioning performance during first year data taking.
sPHENIX is a new experiment under construction for the Relativistic Heavy Ion Collider at Brookhaven National Laboratory which will study quark-gluon plasma to further understanding of QCD matter and interactions. A prototype electromagnetic calorimeter (EMCal) was tested Fermilab Test Beam Facility in Spring 2018 as T-1044. The EMCal corresponds solid angle $ \Delta \eta \times \phi = 0.2 0.2$ centered pseudo-rapidity $\eta 1$. consists scintillating fibers embedded mix tungsten powder...
The PHENIX Hadron Blind Detector (HBD) was successfully operated during the 2009 high energy polarized proton run at RHIC. This first data taking after detector rebuilt following its commissioning in 2007. for several months under actual beam conditions and showed greatly improved performance over run. Results are given on operation of detector, determination calibration gain using scintillation light produced by charged particles CF <sub xmlns:mml="http://www.w3.org/1998/Math/MathML"...
The Hadron Blind Detector (HBD) is new upgrade detector for the PHENIX experiment at RHIC that consists of a windowless Cherenkov radiator directly coupled to set triple gas electron multipliers (GEMs). individual GEMs measure 22x27 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , and top GEM in stack coated with ~300 nm layer CsI serves as photocathode. signal amplitude from used differentiate between single isolated electrons...
The PHENIX Hadron Blind Detector (HBD) is a high performance Cherenkov counter that uses pure CF <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> to detect electrons in relativistic heavy ion collisions at RHIC. It requires extremely purity gas order achieve photoelectron yield, preserve the quality of its cesium iodide photocathodes, and maintain stable gain GEM detectors. In particular, water oxygen even few ppm level can cause...
The authors have constructed and tested seven projective scintillating fiber-copper absorber hadron calorimeter towers for high-energy collider detectors. Each tower contained 2.25% by volume fibers, embedded between copper laminations, 10.6 lambda deep. A energy resolution of sigma /E=91%/ square root E was obtained. Pions exhibited uniform response when scanned across boundaries modules through a range incident angles with respect to the fibers. e/ pi ratio is 1.08+or-0.02 energies 10 20...
A Hadron Blind Detector (HBD) has been installed in the PHENIX experiment at Relativistic Heavy Ion Collider (RHIC). 2300 channel compact 12-bit 60 MHz digitizer system built to read HBD system. The raw signals are shaped with 70 ns rise time and directly digitized. charge of can be calculated from multiple samples. is designed handle Level 1 (L1) trigger rates up 25 KHz 5 L1 event buffers. Large amounts data generated after ADC. Issues regarding clock distribution, handling, buffers,...