NuFact 2018, 20th workshop on neutrinos from accelerators

Session

Posters & welcome receiption

Aug 13, 2018, 6:30 PM

48. A High-efficiency Cosmic Ray Veto Detector for the Mu2e Experiment

Ben Barton (Virginia), Danny Mills (Virginia)

The Mu2e experiment at Fermilab will search for the charged lepton flavor violating process of coherent muon-to-electron conversion in the presence of a nucleus with a sensitivity four orders of magnitude beyond current limits. The experiment will have a single event sensitivity of about 3×10^−17 while limiting the total background to about 0.5 events. One potential background is due to...

204. ANNIE Phase II Detector and Event Reconstruction

Jingbo Wang

The Accelerator Neutrino Neutron Interaction Experiment (ANNIE), deployed on the Booster Neutrino Beam (BNB) at Fermilab, has recently finished the neutron background measurement in the Phase I data taking. The primary physics goal of Phase II is to measure the multiplicity of final state neutrons from neutrino-nucleus interactions in water, which provides a strong handle to study the...

58. Constraining neutrino transition magnetic moments

Dr Nitali Dash (Institute of Hienergy Physics, Chinese Academy of Sciences, Beijing 100049, China)

We are presenting a preliminary results on the studies of neutrino transition magnetic moments using DUNE LAr, HK and JUNO detectors. Neutrinos, if Majorana particles, the combined effect of magnetic field and matter effect in core-collapse Super Nova can transform some of $\nu_{e}$ to $\bar{\nu}_{e}$ due to spin flavour conversions. As a result of this conversions the inverse beta decay...

60. Constraints on neutrino decay scenarios with electron anti-neutrino disappearance experiments.

Suprabh Prakash (IFGW, Unicamp)

Neutrino decay provides a very interesting case for the "beyond PMNS'' neutrino physics. It has been shown that this phenomenon can also explain some of the anomalies seen in neutrino experiments. We study the constraints that $\bar{\nu}_e$ disappearance experiments like JUNO and KamLAND can put on neutrino decay scenarios. In particular, we consider a model where a heavier neutrino can decay...

203. Daya Bay Reactor Neutrino Experiment

Shengchao Li

Starting in 2011, the Daya Bay Reactor Neutrino Experiment observed anti-neutrinos from six nuclear reactors with eight identically designed underground anti-neutrino detectors in three experimental halls, and has accumulated the world’s largest dataset of anti-neutrino candidates. The measurement of the neutrino mixing angle theat 13 and the neutrino mass squared difference |Delta m^2 ee|have...

57. Details of the T2K oscillation analyses

Davide Sgalaberna (CERN)

T2K is a long-baseline neutrino experiment in which a muon neutrino beam produced by J-PARC in Tokai is sent 295 km across Japan to the Super-Kamiokande detector. The experiment studies neutrino oscillations via the disappearance of muon neutrinos and the appearance of electron neutrinos. T2K has conclusively observed muon neutrino to electron neutrino oscillations, opening the door to the...

45. Distinguishing muon LFV effective couplings using \mu+e->e+e

Joe Sato (Saitama University)

We discuss how to discriminate muon LFV couplings one from the other using the mode \mu+e -> e+e.

50. Fabrication of A High-efficiency Cosmic Ray Veto Detector for the Mu2e Experiment

Ben Barton (Virginia), Danny Mills (Virginia)

The Mu2e experiment at Fermilab will search for the charged-lepton-flavor-violating process of coherent muon-to-electron conversion in the presence of a nucleus with a sensitivity four orders of magnitude beyond the current strongest limits. The goal of single-event sensitivity requires that all backgrounds must sum to significantly less than one event. One potential background is due to...

43. Final results from the OPERA experiment in the CNGS neutrino beam

Matteo Tenti (INFN)

The OPERA experiment at the Gran Sasso Laboratory was designed to study nu_mu → nu_tau
oscillations in appearance mode in the CERN-to-Gran Sasso neutrino beam. We report the final analysis of the full data sample based on looser selection criteria than in previous analyses and multivariate approach. Oscillation parameters have been determined with a reduced statistical uncertainty, and the...

64. Future prospects for CAPTAIN experiment

Jorge Chaves (University of Pennsylvania)

The CAPTAIN (Cryogenic Apparatus for Precision tests of Argon Interactions with Neutrinos) experiment is a five-ton liquid argon time projection chamber (LArTPC) at Los Alamos National Laboratory. CAPTAIN is designed to make measurements of liquid argon interactions relevant to neutrino physics in particular for the proposed Deep Underground Neutrino Experiment (DUNE). A prototype detector...

63. Mini-CAPTAIN measurements in the LANSCE WNR Neutron Beam

Clark McGrew (Stony Brook University)

All neutrino experiments face the problem of reconstructing the incoming neutrino energy using the visible interaction products. Unfortunately, the initial neutrino interaction is not well understood, not all of the interaction products are visible, and the secondary interactions may not be well understood. In preparation the analysis of neutrino oscillation data collected using liquid argon...

44. Modeling neutrino-nucleus interactions in the few-GeV region

Mr Kajetan Niewczas (Ghent University)

A good understanding of neutrino-nucleus scattering mechanisms is essential to reduce the systematic errors in neutrino oscillation experiments. Recent interest of the Ghent group focus on providing a consistent description of this process in the intermediate energy region. We describe the low energy response with collective nuclear excitations and the quasielastic peak using a...

59. Muonic X-ray measurements with radioactive elements

Frederik Wauters (Johannes Gutenberg Universitaet Mainz)

Muonic X-rays are an excellent tool to measure the nuclear charge radius, the radii of almost all stable nuclei have been measured with this method. More challenging are radioactive nuclei due to the amount of material needed to stop negative muons produces at accelerator facilities. At the Paul Scherrer Institute we have developed a novel method, stopping the muons is a gaseous...

161. Neutrino Physics with Deep Learning on NOvA

Fernanda Psihas

The NOvA experiment has made both $\nu_\mu$ disappearance and $\nu_e$ appearance measurements in Fermilab's NuMI beam, and is working on cross section measurements using near detector data. At the core of NOvA's measurements is the use of deep learning algorithms for identification and reconstruction of the neutrino flavor and energy.

Presented here is the extension of our deep learning...

206. Neutrino Physics with Deep Learning on NOvA

Fernanda Psihas

The NOvA experiment has made both νμ disappearance and νe appearance measurements in Fermilab's NuMI beam, and is working on cross section measurements using near detector data. At the core of NOvA's measurements is the use of deep learning algorithms for identification and reconstruction of the neutrino flavor and energy.

Presented here is the extension of our deep learning efforts for...

53. Neutrino trident production at near detectors

Mr Matheus Hostert (IPPP, Durham University)

The large statistics expected at the near detectors of neutrino oscillation experiments opens up the possibility to search for rare neutrino interactions. One example is neutrino trident production, the scattering of a neutrino by the Coulomb field of a nucleus producing a pair of charged leptons. In this talk, I will revisit the calculation of the trident scattering rate, addressing certain...

49. Performance of Scintillation Counters as Measured at the Fermilab Test Beam Facility for the Mu2e Cosmic Ray Veto System

Ningshun Chen (Virginia)

Photoelectron yields of extruded scintillation counters with titanium dioxide coating and embedded wavelength shifting fibers read out by silicon photomultipliers have been measured at the Fermilab Test Beam Facility using 120 GeV protons. The yields were measured as a function of transverse, longitudinal, and angular positions for a variety of scintillator compositions, reflective coating...

51. Performance of Wavelength-Shifting Fibers for the Mu2e Cosmic Ray Veto Detector

Peter Farris (Virginia)

The Mu2e experiment will search for a neutrino-less muon-to-electron conversion process with almost four orders of magnitude of sensitivity improvement relative to the current best limit. One important background is caused by cosmic ray muons, and particles produced by their decay or interactions, mimicking the conversion electron signature. In order to reach the design sensitivity, Mu2e needs...

207. Reactor Antineutrino Detection Using CHANDLER : A New Portable Neutrino Detector Tulasi Subedi Abstract CHANDLER

Tulasi Subedi

CHANDLER is a neutrino detection technology to detect reactor antineutrino. It detects the end products (positron and neutron) from inverse beta decay (IBD) reaction, to tag an event. This technology can be used for nuclear non-proliferation and a sterile neutrino search.

61. Recent Cross Section Results from T2K

Mr Clarence Wret (University of Rochester)

Measurements of the PMNS oscillation parameters by the T2K experiment are
improving our understanding of neutrino mixing. Using the two
multi-purpose near detectors, ND280 and INGRID, T2K also
extensively measures neutrino-nucleus interactions in the low GeV
region. With multiple targets and on/off-axis detector placement, the
near detectors investigate target dependence and the effects...

66. Recent progress on radiation damage studies at RaDIATE

Dr Taku Ishida (J-PARC/KEK)

In the recent past, major accelerator facilities have been limited in beam power not by their accelerators but by target and/or window survivability. With present plans to upgrade accelerator facilities at FNAL and J-PARC to higher beam powers (1.2+ MW) in the next decade, timely R&D of robust high power targets and beam windows is needed to fully realize the physics benefits of the higher...

56. Recent results of neutrino interactions from the T2K Near Detector

Xianguo Lu

Neutrino-nucleus cross-section measurements in the GeV regime are crucial for future accelerator-based precision neutrino oscillation measurements. The T2K Near Detector has provided important results for the study of nuclear effects in neutrino-nucleus interactions and therefore stringent constraints on model development. In this talk, I will present our recent cross-section measurements,...

54. Search for K+->pi+nunu at CERN

Mr Stoyan Trilov

The decay K+→π+νν, with a very precisely predicted branching ratio of less than 10-10, is one of the best candidates to reveal indirect effects of new physics at the highest mass scales. The NA62 experiment at CERN SPS is designed to measure the branching ratio of the K+→π+νν with a decay-in-flight technique, novel for this channel. NA62 took data in 2016, 2017 and another year run is...

52. Studies of the Aging Properties of the Mu2e Cosmic Ray Veto System

Yuri Oksuzian (Virginia)

The Muon-to-Electron Conversion experiment (Mu2e) operates at extremely high sensitivities, requiring a means of reducing experimental background. The Cosmic Ray Veto system (CRV) is a particle detector that will surround the Mu2e apparatus to veto penetrating particles that present background. The CRV must have a detection efficiency of 99.99% throughout the expected three year lifetime of...

65. Studying Neutral Current Elastic Scattering and the Strange Axial Form Factor in MicroBooNE

Katherine Woodruff (New Mexico State University)

One of the least constrained contributions to the neutral current (NC) elastic
neutrino-proton cross section is the strange axial form factor, which
represents the strange quark spin contribution to the spin of the proton.
Knowledge of this form factor is important for many areas of physics including
sterile neutrino searches, spin-dependent dark matter searches, and supernova
explosion...

47. The Mu2e Experiment at Fermilab

Steve Boi (Virginia)

The Muon-to-Electron-Conversion (Mu2e) Experiment is a high-precision, intensity-frontier experiment being developed at Fermilab which will search for coherent, neutrino-less muon to electron conversion in the presence of an atomic nucleus. Such a process would exhibit charged lepton flavor violation (CLFV), which has not yet been observed. Continuing the search for CLFV, Mu2e will improve the...

205. The NOvA Test Beam Program

Andrew Sutton

NOvA is a long-baseline off-axis beam neutrino experiment. By measuring ν_μ disappearance and ν_e appearance at the 14 kiloton NOvA Far Detector, the experiment is addressing outstanding questions in neutrino physics, including the neutrino mass hierarchy and existence of leptonic CP violation. The NOvA Test Beam program, under deployment at the Fermilab Test Beam Facility, will use a...

62. The Role of Cross Sections in the Oscillation Analysis: The T2K Experience

Clarence Wret (University of Rochester)

The T2K experiment measures long baseline neutrino oscillations with
neutrinos in the 0.1-1.5 GeV energy range. Thanks to
excellent beam performance T2K is rapidly gathering statistics,
increasing the relative importance of the parameterisation of systematics.
Neutrino-nucleus interactions are large contributors to the error
budget at T2K, affecting crucial components such as neutrino...

55. The search for neutral currents in muonic X-rays

Frederik Wauters (Johannes Gutenberg Universitaet Mainz)

Muonic X-ray measurements at the Paul Scherrer Institute

Negative muons at rest quickly get captured by nearby atoms in highly exited atomic states. These muonic atoms subsequently de-exite via radiative and Auger transitions until the muon ends up in the 1s orbital. At the lower orbits, there is substantial overlap between the muon wave function and the nucleus, making this system an...