Quantifying uncertainties in nuclear matrix elements for dark matter searches

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00517689" target="_blank" >RIV/61389005:_____/19:00517689 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/1.5130969" target="_blank" >http://dx.doi.org/10.1063/1.5130969</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5130969" target="_blank" >10.1063/1.5130969</a>

Result language

angličtina

Original language name

Quantifying uncertainties in nuclear matrix elements for dark matter searches

Original language description

In this contribution we report on quantification of theoretical uncertainties in nuclear matrix elements relevant for modeling dark matter and electro-weak interactions with nuclei. Recently we have developed a novel ab initio framework for computations of nuclear matrix elements and applied it in calculations of reaction rates for dark matter particles scattering off selected nuclear targets [1]. To evaluate the nuclear matrix elements we used nuclear wave functions computed within an ab initio many-body framework employing state-of-the-art nuclear Hamiltonians derived from chiral effective field theory. For the first time we have quantified the nuclear-physics uncertainties of the matrix elements that result from the remaining freedom in the construction of realistic nuclear interactions and their impact on physical observables. We found significant uncertainties especially for certain spin-dependent nuclear matrix elements. While our nuclear structure calculations have been performed with the no-core shell model method and applied in the context of dark matter searches, the approach can be generalized to other ab initio methods and extended to other sectors.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

AIP Conference Proceedings

ISBN

978-0-7354-1910-0

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

020008

Publisher name

American Institute of Physics Inc.

Place of publication

Melville

Event location

Praha

Event date

May 27, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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