Quantum simulations of dark sector showers

We consider dark sector scenarios where dark matter is accompanied by a dark photon and multiple-flavor dark fermions charged under the dark gauge group. We study quantum interference effects in dark sector jets, where multiple dark photons are emitted from high-energy dark fermions. We perform full...

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Main Authors: So Chigusa, Masahito Yamazaki
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269322006001
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author So Chigusa
Masahito Yamazaki
author_facet So Chigusa
Masahito Yamazaki
author_sort So Chigusa
collection DOAJ
description We consider dark sector scenarios where dark matter is accompanied by a dark photon and multiple-flavor dark fermions charged under the dark gauge group. We study quantum interference effects in dark sector jets, where multiple dark photons are emitted from high-energy dark fermions. We perform fully quantum simulations of dark sector showers and compare the results against those of the classical Monte-Carlo simulations. We find important differences in probability distributions of dark photon countings between quantum and classical computations. When the number of dark-fermion flavors is large, we find significant enhancements in large numbers of dark photon emissions. Such enhancements can provide distinguishing signals for our scenarios at particle colliders.
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spelling doaj.art-9c42bb1f534d4fd39487fa969bc3f11e2022-12-22T03:25:58ZengElsevierPhysics Letters B0370-26932022-11-01834137466Quantum simulations of dark sector showersSo Chigusa0Masahito Yamazaki1Berkeley Center for Theoretical Physics, Department of Physics, University of California, Berkeley, CA 94720, USA; Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; KEK Theory Center, IPNS, KEK, Tsukuba, Ibaraki 305-0801, Japan; Corresponding author.Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa, Chiba 277-8583, JapanWe consider dark sector scenarios where dark matter is accompanied by a dark photon and multiple-flavor dark fermions charged under the dark gauge group. We study quantum interference effects in dark sector jets, where multiple dark photons are emitted from high-energy dark fermions. We perform fully quantum simulations of dark sector showers and compare the results against those of the classical Monte-Carlo simulations. We find important differences in probability distributions of dark photon countings between quantum and classical computations. When the number of dark-fermion flavors is large, we find significant enhancements in large numbers of dark photon emissions. Such enhancements can provide distinguishing signals for our scenarios at particle colliders.http://www.sciencedirect.com/science/article/pii/S0370269322006001
spellingShingle So Chigusa
Masahito Yamazaki
Quantum simulations of dark sector showers
Physics Letters B
title Quantum simulations of dark sector showers
title_full Quantum simulations of dark sector showers
title_fullStr Quantum simulations of dark sector showers
title_full_unstemmed Quantum simulations of dark sector showers
title_short Quantum simulations of dark sector showers
title_sort quantum simulations of dark sector showers
url http://www.sciencedirect.com/science/article/pii/S0370269322006001
work_keys_str_mv AT sochigusa quantumsimulationsofdarksectorshowers
AT masahitoyamazaki quantumsimulationsofdarksectorshowers