期刊
PHYSICAL REVIEW LETTERS
卷 112, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.231801
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资金
- Fermi National Accelerator Laboratory under U.S. Department of Energy [DE-AC02-07CH11359]
- United States National Science Foundation [PHY-0619727]
- NSF (USA)
- DOE (USA)
- CAPES (Brazil)
- CNPq (Brazil)
- CoNaCyT (Mexico)
- CONICYT (Chile)
- CONCYTEC (Peru)
- DGI-PUCP (Peru)
- IDI/IGI-UNI (Peru)
- Latin American Center for Physics (CLAF)
- Swiss National Science Foundation
- RAS
- Russian Ministry of Education and Science (Russia)
- Direct For Mathematical & Physical Scien
- Division Of Physics [1303734] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1306944, 1404535, 1307415, 1306126, 1205884] Funding Source: National Science Foundation
We present measurements of nu(mu) charged-current cross section ratios on carbon, iron, and lead relative to a scintillator (CH) using the fine-grained MINERvA detector exposed to the NuMI neutrino beam at Fermilab. The measurements utilize events of energies 2 < E-nu < 20 GeV, with < E-nu > = 8 GeV, which have a reconstructed mu(-) scattering angle less than 17 degrees to extract ratios of inclusive total cross sections as a function of neutrino energy E-nu and flux-integrated differential cross sections with respect to the Bjorken scaling variable x. These results provide the first high-statistics direct measurements of nuclear effects in neutrino scattering using different targets in the same neutrino beam. Measured cross section ratios exhibit a relative depletion at low x and enhancement at large x. Both become more pronounced as the nucleon number of the target nucleus increases. The data are not reproduced by GENIE, a conventional neutrino-nucleus scattering simulation, or by the alternative models for the nuclear dependence of inelastic scattering that are considered.
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