Energy and flavor discrimination using precision time structure in on-axis neutrino beams
Abstract
We propose to use a higher-frequency rf bunch structure for the primary proton beam on target and precision timing to select different energy and flavor spectra from a wide-band neutrino beam, based on the relative arrival times of the neutrinos with respect to the rf bunch structure. This “stroboscopic” approach is complementary to techniques that select different neutrino energy spectra based on the angle with respect to the beam axis. A timing-based approach allows for the selection of varying energy spectra from the same on-axis detector, and applies equally to both the near and far detectors in an oscillation experiment. Energy and flavor discrimination of neutrinos produced by hadrons in-flight will require proton bunch lengths on the order of 100 ps and commensurate time resolution in the detector. Correlating neutrino events with the parent proton interaction is currently limited by the nanosecond-scale width of the proton bunches impinging on the target. We show that these limitations can be addressed by using a superconducting rf cavity to rebunch the present 53.1 MHz rf bunch structure with a factor of 10 higher rf frequency, thus attaining the required shorter bunch length.
- Authors:
-
- Univ. of Chicago, IL (United States). Enrico Fermi Inst.
- Iowa State Univ., Ames, IA (United States)
- Univ. of Chicago, IL (United States). Enrico Fermi Inst.; Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1568844
- Alternate Identifier(s):
- OSTI ID: 1558831
- Report Number(s):
- arXiv:1904.01611; FERMILAB-FN-1068-DI
Journal ID: ISSN 2470-0010; PRVDAQ; oai:inspirehep.net:1727972; TRN: US2100134
- Grant/Contract Number:
- AC02-07CH11359; SC-0008172; SC0017946
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 100; Journal Issue: 3; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Angelico, Evan, Eisch, Jonathan, Elagin, Andrey, Frisch, Henry, Nagaitsev, Sergei, and Wetstein, Matthew. Energy and flavor discrimination using precision time structure in on-axis neutrino beams. United States: N. p., 2019.
Web. doi:10.1103/PhysRevD.100.032008.
Angelico, Evan, Eisch, Jonathan, Elagin, Andrey, Frisch, Henry, Nagaitsev, Sergei, & Wetstein, Matthew. Energy and flavor discrimination using precision time structure in on-axis neutrino beams. United States. https://doi.org/10.1103/PhysRevD.100.032008
Angelico, Evan, Eisch, Jonathan, Elagin, Andrey, Frisch, Henry, Nagaitsev, Sergei, and Wetstein, Matthew. Mon .
"Energy and flavor discrimination using precision time structure in on-axis neutrino beams". United States. https://doi.org/10.1103/PhysRevD.100.032008. https://www.osti.gov/servlets/purl/1568844.
@article{osti_1568844,
title = {Energy and flavor discrimination using precision time structure in on-axis neutrino beams},
author = {Angelico, Evan and Eisch, Jonathan and Elagin, Andrey and Frisch, Henry and Nagaitsev, Sergei and Wetstein, Matthew},
abstractNote = {We propose to use a higher-frequency rf bunch structure for the primary proton beam on target and precision timing to select different energy and flavor spectra from a wide-band neutrino beam, based on the relative arrival times of the neutrinos with respect to the rf bunch structure. This “stroboscopic” approach is complementary to techniques that select different neutrino energy spectra based on the angle with respect to the beam axis. A timing-based approach allows for the selection of varying energy spectra from the same on-axis detector, and applies equally to both the near and far detectors in an oscillation experiment. Energy and flavor discrimination of neutrinos produced by hadrons in-flight will require proton bunch lengths on the order of 100 ps and commensurate time resolution in the detector. Correlating neutrino events with the parent proton interaction is currently limited by the nanosecond-scale width of the proton bunches impinging on the target. We show that these limitations can be addressed by using a superconducting rf cavity to rebunch the present 53.1 MHz rf bunch structure with a factor of 10 higher rf frequency, thus attaining the required shorter bunch length.},
doi = {10.1103/PhysRevD.100.032008},
journal = {Physical Review D},
number = 3,
volume = 100,
place = {United States},
year = {Mon Aug 26 00:00:00 EDT 2019},
month = {Mon Aug 26 00:00:00 EDT 2019}
}
Web of Science
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