20190322 18:16 
All Tree Amplitudes of 6D (2,0) Supergravity: Interacting Tensor Multiplets and the K3 Moduli Space
/ Heydeman, Matthew ; Schwarz, John H. ; Wen, Congkao ; Zhang, ShunQing
We present a twistorlike formula for the complete treelevel $S$ matrix of sixdimensional (6D) (2,0) supergravity coupled to 21 Abelian tensor multiplets. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.111604
arXiv:1812.06111
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20190322 18:16 
Causality and LoopTree Duality at Higher Loops
/ Runkel, Robert ; Szőr, Zoltán ; Vesga, Juan Pablo ; Weinzierl, Stefan
We relate an $l$loop Feynman integral to a sum of phase space integrals, where the integrands are determined by the spanning trees of the original $l$loop graph. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.111603
arXiv:1902.02135
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20190322 18:16 
Weyl Invariance of String Theories in Generalized Supergravity Backgrounds
/ FernándezMelgarejo, José J. ; Sakamoto, Junichi ; Sakatani, Yuho ; Yoshida, Kentaroh
We revisit Weyl invariance string theories in generalized supergravity backgrounds. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.111602
arXiv:1811.10600
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20190322 18:16 
Holographic Entanglement of Purification from Conformal Field Theories
/ Caputa, Pawel ; Miyaji, Masamichi ; Takayanagi, Tadashi ; Umemoto, Koji
We explore a conformal field theoretic interpretation of the holographic entanglement of purification, which is defined as the minimal area of the entanglement wedge cross section. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.111601
arXiv:1812.05268
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20190322 18:16 
Early Cosmological Period of QCD Confinement
/ Ipek, Seyda ; Tait, Tim M. P.
If the strong coupling is promoted to a dynamical fielddependent quantity, it is possible that the strong force looked very different in the early Universe. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.112001
arXiv:1811.00559
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20190315 18:16 
Evidence of a Resonant Structure in the ${e}^{+}{e}^{}\to {\pi}^{+}{D}^{0}{D}^{*}$ Cross Section between 4.05 and 4.60 GeV
/ Ablikim, M. ; Achasov, M. N. ; Ahmed, S. ; Albrecht, M. ; et al
The cross section of the process ${e}^{+}{e}^{}\to {\pi}^{+}{D}^{0}{D}^{*}$ for centerofmass energies from 4.05 to 4.60 GeV is measured precisely using data samples collected with the BESIII detector operating at the BEPCII storage ring. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.102002
arXiv:1808.02847
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20190313 22:16 
Primordial Black Holes from the QCD Axion
/ Ferrer, Francesc ; Masso, Eduard ; Panico, Giuliano ; Pujolas, Oriol ; et al
We propose a mechanism to generate primordial black holes (PBHs) that is independent of cosmological inflation and occurs slightly below the QCD phase transition. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.101301
arXiv:1807.01707
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20190313 18:16 
Thermal Emission from Semiclassical Dynamical Systems
/ Morita, Takeshi
Recently the bound on the Lyapunov exponent ${\lambda}_{L}\le 2\pi T/\hslash $ in thermal quantum systems was conjectured by Maldacena, Shenker, and Stanford. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.101603
arXiv:1902.06940
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20190311 22:16 
SpinorHelicity Formalism for Massless Fields in ${\mathrm{AdS}}_{4}$
/ Nagaraj, Balakrishnan ; Ponomarev, Dmitry
In this Letter, we suggest a natural spinorhelicity formalism for massless fields in fourdimensional anti–de Sitter space (${\mathrm{AdS}}_{4}$). [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.101602
arXiv:1811.08438
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20190311 18:16 
Polarized Scattering Equations for 6D Superamplitudes
/ Geyer, Yvonne ; Mason, Lionel
We introduce a spinorial version of the scattering equations, the polarized scattering equations, that incorporates spinor polarization data. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.101601
arXiv:1812.05548
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