Measurement of differential cross sections for ν μ
P. AbratenkoM. AlrashedR. AnJ. AnthonyJ. AsaadiA. AshkenaziS. BalasubramanianB. BallerC. BarnesG. BarrV. BasqueL. Bathe-PetersO. Benevides RodriguesS. BerkmanA. BhanderiA. BhatM. BishaiA. BlakeT. BoltonL. CamilleriD. CaratelliI. Caro TerrazasR. Castillo FernándezF. CavannaG. B. CeratiY. ChenE. ChurchD. CianciJ. M. ConradM. R. ConveryL. Cooper-TroendleJ. I. Crespo-AnadónM. Del TuttoAnn DevittR. DiurbaL. DomineR. DorrillK. DuffyS. DytmanB. EberlyA. EreditatoL. Escudero SanchezJ. J. EvansG. A. Fiorentini AguirreR. S. FitzpatrickB. T. FlemingN. FoppianiD. FrancoA. P. FurmanskiD. García-GámezS. GardinerG. GeS. GollapinniO. GoodwinE. GramelliniP. GreenH. GreenleeWei GuR. GuénetteP. GuzowskiE. HallP. HamiltonO. HenG. A. Horton-SmithA. HourlierE.-C. HuangR. ItayC. JamesJ. Jan de VriesX. JiL. JiangJ. H. JoR. A. JohnsonY.-J. JwaN. KampG. KaragiorgiW. KetchumB. KirbyM. KirbyT. KobilarcikI. KresloR. LaZurI. LepeticK. LiY. LiA. ListerB. R. LittlejohnD. LorcaW. C. LouisX. LuoA. MarchionniS. MarcocciC. MarianiD. MarsdenJ. MarshallJ. Martín-AlboD. A. Martínez CaicedoK. MasonA. MastbaumN. McConkeyV. MeddageT. MettlerK. MillerJ. MillsK. MistryA. MoganT. MohayaiJ. MoonM. MooneyA. F. MoorC. D. MooreJ. MousseauM. MurphyD. NaplesA. Navrer-AgassonR.K. NeelyP. NienaberJ. NowakO. PalamaraV. PaoloneA. PapadopoulouV. PapavassiliouS. F. PateA. PaudelŽ. PavlovićE. PiasetzkyI. D. Ponce-PintoD. PorzioS. PrinceX. QianJ. L. RaafV. RadekaA. RafiqueM. Reggiani-GuzzoL. RenLynn RochesterJ. Rodriguez RondonH. E. RogersM. RosenbergM. Ross-LonerganB. RussellG. ScanaviniD. SchmitzA. SchukraftM. H. ShaevitzR. SharankovaJ. SinclairA. C. SmithE.L. SniderM. SöderbergS. Söldner‐RemboldS. R. SoletiP. SpentzourisJ. SpitzM. StancariJ. St. JohnT. StraussK. SuttonS. Sword-FehlbergA. M. SzelcN. TaggW. TangK. TeraoC. ThorpeM. ToupsY.-T. TsaiS. TufanliM. A. UchidaT. UsherW. Van De PontseeleB. VirenM. WeberH. WeiZ. WilliamsS. WolbersT. WongjiradM. WospakrikW. WuT. YangG. YarbroughL. E. YatesGeralyn P. ZellerJ. ZennamoC. Zhang
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We present an analysis of MicroBooNE data with a signature of one muon, no pions, and at least one proton above a momentum threshold of $300\text{ }\text{ }\mathrm{MeV}/\mathrm{c}$ ($\mathrm{CC}0\ensuremath{\pi}Np$). This is the first differential cross-section measurement of this topology in neutrino-argon interactions. We achieve a significantly lower proton momentum threshold than previous carbon and scintillator-based experiments. Using data collected from a total of approximately $1.6\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons on target, we measure the muon neutrino cross section for the $\mathrm{CC}0\ensuremath{\pi}Np$ interaction channel in argon at MicroBooNE in the Booster Neutrino Beam which has a mean energy of around 800 MeV. We present the results from a data sample with estimated efficiency of 29% and purity of 76% as differential cross sections in five reconstructed variables: the muon momentum and polar angle, the leading proton momentum and polar angle, and the muon-proton opening angle. We include smearing matrices that can be used to ``forward fold'' theoretical predictions for comparison with these data. We compare the measured differential cross sections to a number of recent theory predictions demonstrating largely good agreement with this first-ever dataset on argon.I present a scheme to obtain a 2 to 40 GeV low emittance muon beam, not requiring cooling and within today’s technological resources, to be used for early commissioning of muon accelerator projects, or alternatively dedicated muon and neutrino parameter measurements. In particular, a muon rate of 5 × 10^4 𝜇/s in a normalized transverse emittance of 5 𝜋 𝜇m at 22 GeV, and energy spread of 1 GeV obtained from 𝑂 (10^11 ) e+ /s on target at 44 GeV. This emittance is below the expected results of advanced emittance cooling techniques for muons produced from protons-on-target, and represents an alternative for the duration of complete muon cooling studies. The scheme has beam designed to adjust the muon beam energy in the GeV energy range to the needs for precise parameter measurements of muons and neutrinos. Furthermore, the muon rate could be in principle increased proportionally to the availability of higher positron rates, already foreseen for future collider projects.
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For the last 30 years, muon experiments at ISIS pulsed neutron and muon facility at the Rutherford Appleton Laboratory, Oxfordshire have been making a significant contribution to a number of scientific fields. The muon facilities at ISIS consist of eight experimental areas. The European Commission Muon facility consists of three experimental areas with a fixed momentum (28 MeV c −1 ). The RIKEN-RAL facility has a variable momentum (17–90 MeV c −1 ) and a choice of negative or positive muons delivering muons to four experimental areas. There is also an area recently used for a muon ionization cooling experiment. In this paper, the ISIS pulsed muon facilities are reviewed, including the beam characteristics that could be useful for muography experiments. This article is part of the Theo Murphy meeting issue ‘Cosmic-ray muography’.
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One is currently studying the associated production of prompt muons and other particles produced in n-Be collisions in the M-3 neutral beam at Fermilab. The muon arm of our two-arm spectrometer provides excellent hadron rejection and accepts particles of transverse momentum greater than 0.35 GeV/c. The muon momentum is measured with an accuracy of about +-25 percent. The precision forward arm of the spectrometer has large acceptance (x greater than 0.2) and is instrumented with equipment for lepton identification. The system is triggered whenever one or more charged particles traverse the muon arm in conjunction with at least one charged particle in the forward arm. Preliminary distributions for particles in the muon arm are presented.
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I present a scheme to obtain a 2 to 40 GeV low emittance muon beam, not requiring cooling and within today's technological resources, to be used for early commissioning of muon accelerator projects, or alternatively dedicated muon and neutrino parameter measurements. In particular, a muon rate of 5x10^4 mu/s in a normalized transverse emittance of 5 um at 22 GeV, and energy spread of 1 GeV obtained from O(10^11) e+/s on target at 44 GeV. This emittance is below the expected results of advanced emittance cooling techniques for muons produced from protons-on-target, and represents an alternative for the duration of complete muon cooling studies. The scheme has beam designed to adjust the muon beam energy in the GeV energy range to the needs for precise parameter measurements of muons and neutrinos. Although the rate is small compared to other muon sources, it does not seem to represent a big limitation for its usage. Furthermore, the muon rate could be in principle increased proportionally to the availability of higher positron rates, already foreseen for future collider projects.
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