Mixing of gravitational wave echoes

Li, Zhipeng; Piao, Yun-Song

doi:10.1103/physrevd.100.044023

Cited by 20 publications

(21 citation statements)

References 93 publications

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“…Recently, this approach was extended to ECOs modeled with a multiple-barrier filter near the surface, showing that the late-time ringdown exhibits mixing of echoes [328].…”

Section: A Dyson-series Representationmentioning

confidence: 99%

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Testing the nature of dark compact objects: a status report

2019

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Very compact objects probe extreme gravitational fields and may be the key to understand outstanding puzzles in fundamental physics. These include the nature of dark matter, the fate of spacetime singularities, or the loss of unitarity in Hawking evaporation. The standard astrophysical description of collapsing objects tells us that massive, dark and compact objects are black holes. Any observation suggesting otherwise would be an indication of beyond-the-standard-model physics. Null results strengthen and quantify the Kerr black hole paradigm. The advent of gravitationalwave astronomy and precise measurements with very long baseline interferometry allow one to finally probe into such foundational issues. We overview the physics of exotic dark compact objects and their observational status, including the observational evidence for black holes with current and future experiments.

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“…Recently, this approach was extended to ECOs modeled with a multiple-barrier filter near the surface, showing that the late-time ringdown exhibits mixing of echoes [328].…”

Section: A Dyson-series Representationmentioning

confidence: 99%

“…This seems certainly a good approximation for stationary geometries, but will fail for collapsing objects for example [76,77]. Furthermore, if the ECO reflective properties are modeled as a multiple-barrier filter -as in certain scenarios motivated by BH area quantization [42,45] mixing of echoes occurs [328].…”

Section: Echo Modelingmentioning

confidence: 99%

Testing the nature of dark compact objects: a status report

2019

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“…Basis light-front quantization (BLFQ) is a nonperturbative approach with advantage of both light-front dynamics and ab initio nuclear structure methods, which has been developed for solving many-body bound state problems in quantum field theories [1][2][3][4] . It has been used to investigate a variety of systems and reactions [5][6][7][8][9][10][11] . Recently, the BLFQ approach using a Hamiltonian that includes the color singlet Nambu-Jona-Lasinio (NJL) interaction to account for the chiral dynamics has been applied to light mesons [12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Pion and kaon parton distribution functions from basis light front quantization and QCD evolution

et al. 2020

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We investigate the parton distribution functions (PDFs) of the pion and kaon from the eigenstates of a light-front effective Hamiltonian in the constituent quark-antiquark representation suitable for low-momentum scale applications. By taking these scales as the only free parameters, the valence quark distribution functions of the pion, after QCD evolving, are consistent with the E615 experiment at Fermilab. In addition, the ratio of the up quark distribution in the kaon to that in the pion also agrees with the NA3 experimental result at CERN.

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“…Last but not least, extraction of TMD fragmentation functions will crucially profit from the advent of Belle II [693]. Already its predecessor Belle has provided several unique and complementary TMD measurements of hadron production in e + e − annihilation [694][695][696][697][698]. They will profit from the 50 times increase in luminosity, while the latter will at the same time offer new avenues.…”

Section: E Experimental Prospectsmentioning

confidence: 99%

Snowmass 2021 whitepaper: Proton structure at the precision frontier

Amoroso,

Apyan,

Armesto

et al. 2022

Preprint

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An overwhelming number of theoretical predictions for hadron colliders require parton distribution functions (PDFs), which are an important ingredient of theory infrastructure for the next generation of high-energy experiments. This whitepaper summarizes the status and future prospects for determination of high-precision PDFs applicable in a wide range of energies and experiments, in particular in precision tests of the Standard Model and in new physics searches at the high-luminosity Large Hadron Collider and Electron-Ion Collider. We discuss the envisioned advancements in experimental measurements, QCD theory, global analysis methodology, and computing that are necessary to bring unpolarized PDFs in the nucleon to the N2LO and N3LO accuracy in the QCD coupling strength. Special attention is given to the new tasks that emerge in the era of the precision PDF analysis, such as those focusing on the robust control of systematic factors both in experimental measurements and theoretical computations. Various synergies between experimental and theoretical studies of the hadron structure are explored, including opportunities for studying PDFs for nuclear and meson targets, PDFs with electroweak contributions or dependence on the transverse momentum, for incisive comparisons between phenomenological models for the PDFs and computations on discrete lattice, and for cross-fertilization with machine learning/AI approaches.

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Mixing of gravitational wave echoes

Cited by 20 publications

References 93 publications

Testing the nature of dark compact objects: a status report

Testing the nature of dark compact objects: a status report

Pion and kaon parton distribution functions from basis light front quantization and QCD evolution

Snowmass 2021 whitepaper: Proton structure at the precision frontier

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