Detecting supernova neutrinos with iron and lead detectors

Abstract

Supernova (SN) neutrinos can excite the nuclei of various detector materials beyond their neutron emission thresholds through charged current (CC) and neutral current (NC) interactions. The emitted neutrons, if detected, can be a signal for the supernova event. Here we present the results of our study of SN neutrino detection through the neutron channel in lead (${}^{208}\mathrm{Pb}$) and iron (${}^{56}\mathrm{Fe}$) detectors for realistic neutrino fluxes and energies given by the recent Basel/Darmstadt simulations for a 18 solar mass progenitor SN at a distance of 10 kpc. We find that, in general, the number of neutrons emitted per kTon of detector material for the neutrino luminosities and average energies of the different neutrino species as given by the Basel/Darmstadt simulations are significantly lower than those estimated in previous studies based on the results of earlier SN simulations. At the same time, we highlight the fact that, although the total number of neutrons produced per kTon in a iron detector is more than an order of magnitude lower than that for lead, the dominance of the flavor blind NC events in the case of iron, as opposed to dominance of ${\nu }_e$ induced CC events in the case of lead, offers a complementarity between the two detector materials so that simultaneous detection of SN neutrinos in a lead and a sufficiently large iron detector suitably instrumented for neutron detection may allow estimating the fraction of the total $\mu$ and $\tau$ flavored neutrinos in the SN neutrino flux and thereby probing the emission mechanism as well as flavor oscillation scenarios of the SN neutrinos.

arXiv comment11 pages, LaTex, 11 figures, 1 Table; more details added, one new figure added; main conclusions remain unchanged; version accepted for publication in Phys. Rev. D

References in corpus (31)

• Collective Neutrino Oscillations
• Monte Carlo Study of Supernova Neutrino Spectra Formation
• Protoneutron star evolution and the neutrino driven wind in general relativistic neutrino radiation hydrodynamics simulations
• Dark matter direct-detection experiments
• Supernova Neutrino Detection
• Particle Physics from Stars
• Future Detection of Supernova Neutrino Burst and Explosion Mechanism
• A New Multi-Dimensional General Relativistic Neutrino Hydrodynamics Code for Core-Collapse Supernovae II. Relativistic Explosion Models of Core-Collapse Supernovae
• Shell model calculations of stellar weak interaction rates: I. Gamow-Teller distributions and spectra of nuclei in the mass range A=45-65
• Neutrino-nucleus reactions and nuclear structure
• Supernova Observation Via Neutrino-Nucleus Elastic Scattering in the CLEAN Detector
• A dynamical collective calculation of supernova neutrino signals
• The role of $\nu$-induced reactions on lead and iron in neutrino detectors
• No collective neutrino flavor conversions during the supernova accretion phase
• Neutrino flavour transformation in supernovae
• Supernova neutrino physics with xenon dark matter detectors: A timely perspective
• Neutrino spectra evolution during proto-neutron star deleptonization
• Prospects for Detecting Supernova Neutrino Flavor Oscillations
• Approximate Treatment of Lepton Distortion in Charged-Current Neutrino Scattering from Nuclei
• Analysis of matter suppression in collective neutrino oscillations during the supernova accretion phase
• What Can Be Learned with a Lead-Based Supernova-Neutrino Detector?
• Neutrino beams as a probe of the nuclear isospin and spin-isospin excitations
• The inclusive 56Fe(nu_e,e-)56Co cross section
• (Down-to-)Earth matter effect in supernova neutrinos
• The neutrino signal at HALO: learning about the primary supernova neutrino fluxes and neutrino properties
• Observing supernova neutrino light curve in future dark matter detectors
• Detectability of galactic supernova neutrinos coherently scattered on xenon nuclei in XMASS
• Measuring Supernova Neutrino Temperatures using Lead Perchlorate
• Optimization of the design of OMNIS, the observatory of multiflavor neutrinos from supernovae
• Hybrid method to resolve the neutrino mass hierarchy by supernova (anti)neutrino induced reactions
• Resolving neutrino mass hierarchy from supernova (anti)neutrino-nucleus reactions

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• Forbidden transitions in neutral and charged current interactions between low-energy neutrinos and Argon
• Lepton kinematics in low energy neutrino-Argon interactions
• Low-energy neutrino scattering in experiment and astrophysics
• Time dependent signatures of core-collapse supernova neutrinos at HALO
• Simulating low-energy neutrino interactions with MARLEY
• Simulation of the LSD Response to the Neutrino Burst from SN 1987A
• Quasi-Elastic Neutrino Reactions on Carbon and Lead Nuclei