Henry Frisch
· ProfessorUniversity of Chicago · Physics
Active 1970–2021
About
Henry J. Frisch is a professor based at the Michelson Center for Physics and the Enrico Fermi Institute at the University of Chicago. His research focuses on the development and application of advanced timing instrumentation, particularly large-area pico-second resolution time-of-flight detectors and photodetectors. He has contributed significantly to the development of large-area Psec photodetectors, including the Large-Area Picosecond Photodetector (LAPPD) collaboration, and has worked on the design and implementation of high-precision timing systems for particle physics experiments. His work encompasses the technical development of pico-second timing instrumentation, the exploration of optical paths and phase space in detector systems, and the application of these technologies in neutrino detection, medical imaging, and high-energy physics. Frisch has presented his research at numerous conferences and has authored a variety of publications on topics such as the history of precision physics at Fermilab, the development of large-area photodetectors, and their applications in experimental particle physics. His contributions have advanced the capabilities of timing detectors, enabling more precise measurements in high-energy physics experiments and related fields.
Research topics
- Particle physics
- Physics
- Nuclear physics
- Astrophysics
Selected publications
arXiv (Cornell University) · 2021
- Physics
- Particle physics
- Nuclear physics
At the Fermilab Tevatron proton-antiproton ($p\bar{p}$) collider, high-mass electron-neutrino ($eν$) pairs are produced predominantly in the process $p \bar{p} \rightarrow W(\rightarrow eν) + X$. The asymmetry of the electron and positron yield as a function of their pseudorapidity constrain the slope of the ratio of the $u$- to $d$-quark parton distributions versus the fraction of the proton momentum carried by the quarks. This paper reports on the measurement of the electron-charge asymmetry using the full data set recorded by the Collider Detector at Fermilab in 2001--2011 and corresponding to 9.1~fb$^{-1}$ of integrated luminosity. The measurement significantly improves the precision of the Tevatron constraints on the parton-distribution functions of the proton. Numerical tables of the measurement are provided.
A novel measurement of initial-state gluon radiation in hadron collisions using Drell-Yan events
arXiv (Cornell University) · 2021
- Physics
- Nuclear physics
- Particle physics
A study of initial-state gluon radiation (ISR) in hadron collisions is presented using Drell-Yan (DY) events produced in proton-antiproton collisions by the Tevatron collider at a center-of-mass energy of 1.96 TeV. This paper adopts a novel approach which uses the mean value of the Z/$γ^*$ transverse momentum $$ in DY events as a powerful observable to characterize the effect of ISR. In a data sample corresponding to an integrated luminosity of 9.4 fb$^{-1}$ collected with the CDF Run II detector, $$ is measured as a function of the Z/$γ^*$ invariant mass. It is found that these two observables have a dependence, $ = -8 + 2.2 \ln m_{DY}^2$ [GeV/c], where $m_{DY}$ is the value of the Z/$γ^*$ mass measured in units of GeV/$c^2$. This linear dependence is observed for the first time in this analysis. It may be exploited to model the effect of ISR and constrain its impact in other processes.
Physical review. D/Physical review. D. · 2021 · 2 citations
- Physics
- Particle physics
- Nuclear physics
At the Fermilab Tevatron proton-antiproton ($p\overline{p}$) collider, high-mass electron-neutrino ($e\ensuremath{\nu}$) pairs are produced predominantly in the process $p\overline{p}\ensuremath{\rightarrow}W(\ensuremath{\rightarrow}e\ensuremath{\nu})+X$. The asymmetry of the electron and positron yield as a function of their pseudorapidity constrain the slope of the ratio of the $u$- to $d$-quark parton distributions versus the fraction of the proton momentum carried by the quarks. This paper reports on the measurement of the electron-charge asymmetry using the full data set recorded by the Collider Detector at Fermilab in 2001--2011 and corresponding to $9.1\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of integrated luminosity. The measurement significantly improves the precision of the Tevatron constraints on the parton-distribution functions of the proton. Numerical tables of the measurement are provided.
Frequent coauthors
- 1141 shared
H. S. Lee
Institute of Aging
- 1013 shared
E. J. Jeon
Institute for Basic Science
- 991 shared
T. Kamon
Mitchell Institute
- 899 shared
T. Bae
Seoul National University
- 850 shared
K. K. Joo
- 805 shared
S. Uozumi
Korea Institute of Science & Technology Information
- 761 shared
S. Y. Noh
Chungbuk National University
- 757 shared
G. Punzi
University of Pisa
Labs
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