A bstract We use E 8(8) Exceptional Field Theory to construct the consistent truncation of IIB supergravity on S 3 × S 3 × S 1 to maximal 3-dimensional $$ mathcal{N} $$ N = 16 gauged supergravity containing the $$ mathcal{N} $$ N = (4, 4) AdS 3 vacuum. We explain how to achieve this by adding a 7-form flux to the S 1 reduction of the dyonic E 7(7) truncation on S 3 × S 3 previously constructed in the literature. Our truncation Ansatz includes, in addition to the $$ mathcal{N} $$ N = (4, 4) vacuum, a host of moduli breaking some or all of the supersymmetries. We explicitly construct the uplift of a subset of these to construct new supersymmetric and non-supersymmetric AdS 3 vacua of IIB string theory, which include a range of perturbatively stable non-supersymmetric 10-d vacua. Moreover, we show how the supersymmetric direction of the moduli space of AdS 3 vacua of six-dimensional gauged supergravity studied in [1] is compactified upon lifting to 10 dimensions, and find evidence of T-duality playing a role in global aspects of the moduli space. Along the way, we also derive the form of 3-dimensional $$ mathcal{N} $$ N = 16 gauged supergravity in terms of the embedding tensor and rule out a 10-/11-dimensional origin of some 3-dimensional gauged supergravities.
利用e8(8)例外场论构造了s3 × s3 × s1上IIB超重力到包含$$ mathcal{N} $$ N = (4,4) ad3真空的最大三维$$ mathcal{N} $$ N = 16测量超重力的一致截断。我们解释了如何通过在文献中先前构建的s3 × s3上的动态e7(7)截断的s1还原中添加7-form通量来实现这一点。除了$$ mathcal{N} $$ N =(4,4)真空外，我们的截断Ansatz还包括一系列模，这些模打破了部分或全部超对称性。我们显式构造了其中一个子集的隆起，以构造新的IIB弦理论的超对称和非超对称ad3真空，其中包括一系列微扰稳定的非超对称10维真空。此外，我们展示了[1]研究的六维规范超重力的ad3真空的模空间的超对称方向如何在提升到10维时被紧化，并找到了t对偶性在模空间的全局方面发挥作用的证据。在此过程中，我们还根据嵌入张量导出了三维$$ mathcal{N} $$ N = 16测量超重力的形式，并排除了一些三维测量超重力的10 /11维起源。
{"title":"Adding fluxes to consistent truncations: IIB supergravity on AdS3 × S3 × S3 × S1","authors":"Camille Eloy, Michele Galli, Emanuel Malek","doi":"10.1007/jhep11(2023)049","DOIUrl":"https://doi.org/10.1007/jhep11(2023)049","url":null,"abstract":"A bstract We use E 8(8) Exceptional Field Theory to construct the consistent truncation of IIB supergravity on S 3 × S 3 × S 1 to maximal 3-dimensional $$ mathcal{N} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>N</mml:mi> </mml:math> = 16 gauged supergravity containing the $$ mathcal{N} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>N</mml:mi> </mml:math> = (4, 4) AdS 3 vacuum. We explain how to achieve this by adding a 7-form flux to the S 1 reduction of the dyonic E 7(7) truncation on S 3 × S 3 previously constructed in the literature. Our truncation Ansatz includes, in addition to the $$ mathcal{N} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>N</mml:mi> </mml:math> = (4, 4) vacuum, a host of moduli breaking some or all of the supersymmetries. We explicitly construct the uplift of a subset of these to construct new supersymmetric and non-supersymmetric AdS 3 vacua of IIB string theory, which include a range of perturbatively stable non-supersymmetric 10-d vacua. Moreover, we show how the supersymmetric direction of the moduli space of AdS 3 vacua of six-dimensional gauged supergravity studied in [1] is compactified upon lifting to 10 dimensions, and find evidence of T-duality playing a role in global aspects of the moduli space. Along the way, we also derive the form of 3-dimensional $$ mathcal{N} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>N</mml:mi> </mml:math> = 16 gauged supergravity in terms of the embedding tensor and rule out a 10-/11-dimensional origin of some 3-dimensional gauged supergravities.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":" 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135292460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A bstract We study axion-like particle contributions to the Higgs boson decays. The particle is assumed to couple with the standard model electroweak gauge bosons. Although direct productions of axion-like particles have often been discussed, we investigate indirect contributions to the Higgs boson decays into fermions, photons, W , and Z bosons at the one-loop level. It is found that the corrections to the fermions are suppressed, whereas precise measurements of the di-photon channel of the Higgs boson decay can provide a significant probe of the model especially when the axion-like particle is heavy and its coupling to di-photon is suppressed.
{"title":"Higgs probes of axion-like particles","authors":"Masashi Aiko, Motoi Endo","doi":"10.1007/jhep11(2023)046","DOIUrl":"https://doi.org/10.1007/jhep11(2023)046","url":null,"abstract":"A bstract We study axion-like particle contributions to the Higgs boson decays. The particle is assumed to couple with the standard model electroweak gauge bosons. Although direct productions of axion-like particles have often been discussed, we investigate indirect contributions to the Higgs boson decays into fermions, photons, W , and Z bosons at the one-loop level. It is found that the corrections to the fermions are suppressed, whereas precise measurements of the di-photon channel of the Higgs boson decay can provide a significant probe of the model especially when the axion-like particle is heavy and its coupling to di-photon is suppressed.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":" 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135290666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Koji Hashimoto, Keiju Murata, Norihiro Tanahashi, Ryota Watanabe
A bstract Recently, Krylov complexity was proposed as a measure of complexity and chaoticity of quantum systems. We consider the stadium billiard as a typical example of the quantum mechanical system obtained by quantizing a classically chaotic system, and numerically evaluate Krylov complexity for operators and states. Despite no exponential growth of the Krylov complexity, we find a clear correlation between variances of Lanczos coefficients and classical Lyapunov exponents, and also a correlation with the statistical distribution of adjacent spacings of the quantum energy levels. This shows that the variances of Lanczos coefficients can be a measure of quantum chaos. The universality of the result is supported by our similar analysis of Sinai billiards. Our work provides a firm bridge between Krylov complexity and classical/quantum chaos.
{"title":"Krylov complexity and chaos in quantum mechanics","authors":"Koji Hashimoto, Keiju Murata, Norihiro Tanahashi, Ryota Watanabe","doi":"10.1007/jhep11(2023)040","DOIUrl":"https://doi.org/10.1007/jhep11(2023)040","url":null,"abstract":"A bstract Recently, Krylov complexity was proposed as a measure of complexity and chaoticity of quantum systems. We consider the stadium billiard as a typical example of the quantum mechanical system obtained by quantizing a classically chaotic system, and numerically evaluate Krylov complexity for operators and states. Despite no exponential growth of the Krylov complexity, we find a clear correlation between variances of Lanczos coefficients and classical Lyapunov exponents, and also a correlation with the statistical distribution of adjacent spacings of the quantum energy levels. This shows that the variances of Lanczos coefficients can be a measure of quantum chaos. The universality of the result is supported by our similar analysis of Sinai billiards. Our work provides a firm bridge between Krylov complexity and classical/quantum chaos.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"10 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mang Hei Gordon Lee, Ciaran McCulloch, Enrico Pajer
A bstract Cosmological correlators from inflation are often generated at tree level and hence loop contributions are bounded to be small corrections by perturbativity. Here we discuss a scenario where this is not the case. Recently, it has been shown that for any number of scalar fields of any mass, the parity-odd trispectrum of a massless scalar must vanish in the limit of exact scale invariance due to unitarity and the choice of initial state. By carefully handling UV-divergences, we show that the one-loop contribution is non-vanishing and hence leading. Surprisingly, the one-loop parity-odd trispectrum is simply a rational function of kinematics, which we compute explicitly in a series of models, including single-clock inflation. Although the loop contribution is the leading term in the parity-odd sector, its signal-to-noise ratio is typically bounded from above by that of a corresponding tree-level parity-even trispectrum, unless instrumental noise and systematics for the two observables differ. Furthermore, we identify a series of loop contributions to the wavefunction that cancel exactly when computing correlators, suggesting a more general phenomenon.
{"title":"Leading loops in cosmological correlators","authors":"Mang Hei Gordon Lee, Ciaran McCulloch, Enrico Pajer","doi":"10.1007/jhep11(2023)038","DOIUrl":"https://doi.org/10.1007/jhep11(2023)038","url":null,"abstract":"A bstract Cosmological correlators from inflation are often generated at tree level and hence loop contributions are bounded to be small corrections by perturbativity. Here we discuss a scenario where this is not the case. Recently, it has been shown that for any number of scalar fields of any mass, the parity-odd trispectrum of a massless scalar must vanish in the limit of exact scale invariance due to unitarity and the choice of initial state. By carefully handling UV-divergences, we show that the one-loop contribution is non-vanishing and hence leading. Surprisingly, the one-loop parity-odd trispectrum is simply a rational function of kinematics, which we compute explicitly in a series of models, including single-clock inflation. Although the loop contribution is the leading term in the parity-odd sector, its signal-to-noise ratio is typically bounded from above by that of a corresponding tree-level parity-even trispectrum, unless instrumental noise and systematics for the two observables differ. Furthermore, we identify a series of loop contributions to the wavefunction that cancel exactly when computing correlators, suggesting a more general phenomenon.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"4 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sebastian Baum, Marcela Carena, Tong Ou, Duncan Rocha, Nausheen R. Shah, Carlos E. M. Wagner
A bstract We show that simultaneously explaining dark matter and the observed value of the muon’s magnetic dipole moment may lead to yet unexplored photon signals at the LHC. We consider the Minimal Supersymmetric Standard Model with electroweakino masses in the few-to-several hundred GeV range, and opposite sign of the Bino mass parameter with respect to both the Higgsino and Wino mass parameters. In such region of parameter space, the spin-independent elastic scattering cross section of a Bino-like dark matter candidate in direct detection experiment is suppressed by cancellations between different amplitudes, and the observed dark matter relic density can be realized via Bino-Wino co-annihilation. Moreover, the observed value of the muon’s magnetic dipole moment can be explained by Bino and Wino loop contributions. Interestingly, “radiative” decays of Wino-like neutralinos into the lightest neutralino and a photon are enhanced, whereas decays into leptons are suppressed. While these decay patterns weaken the reach of multi-lepton searches at the LHC, the radiative decay opens a new window for probing dark matter at the LHC through the exploration of parameter space regions beyond those currently accessible. To complement the current electroweakino searches, we propose searching for a single (soft) photon plus missing transverse energy, accompanied by a hard initial state radiation jet.
{"title":"Lighting up the LHC with Dark Matter","authors":"Sebastian Baum, Marcela Carena, Tong Ou, Duncan Rocha, Nausheen R. Shah, Carlos E. M. Wagner","doi":"10.1007/jhep11(2023)037","DOIUrl":"https://doi.org/10.1007/jhep11(2023)037","url":null,"abstract":"A bstract We show that simultaneously explaining dark matter and the observed value of the muon’s magnetic dipole moment may lead to yet unexplored photon signals at the LHC. We consider the Minimal Supersymmetric Standard Model with electroweakino masses in the few-to-several hundred GeV range, and opposite sign of the Bino mass parameter with respect to both the Higgsino and Wino mass parameters. In such region of parameter space, the spin-independent elastic scattering cross section of a Bino-like dark matter candidate in direct detection experiment is suppressed by cancellations between different amplitudes, and the observed dark matter relic density can be realized via Bino-Wino co-annihilation. Moreover, the observed value of the muon’s magnetic dipole moment can be explained by Bino and Wino loop contributions. Interestingly, “radiative” decays of Wino-like neutralinos into the lightest neutralino and a photon are enhanced, whereas decays into leptons are suppressed. While these decay patterns weaken the reach of multi-lepton searches at the LHC, the radiative decay opens a new window for probing dark matter at the LHC through the exploration of parameter space regions beyond those currently accessible. To complement the current electroweakino searches, we propose searching for a single (soft) photon plus missing transverse energy, accompanied by a hard initial state radiation jet.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A bstract We study instability of lowest dimension operator (i.e., the imaginary part of its operator dimension) in the rank- Q traceless symmetric representation of the O ( N ) Wilson-Fisher fixed point in D = 4 + ϵ . We find a new semi-classical bounce solution, which gives an imaginary part to the operator dimension of order $$ Oleft({epsilon}^{-1/2}exp left[-frac{N+8}{3epsilon }Fleft(epsilon Qright)right]right) $$ Oϵ−1/2exp−N+83ϵFϵQ in the double-scaling limit where $$ epsilon Qle frac{N+8}{6sqrt{3}} $$ ϵQ≤N+863 is fixed. The form of F ( ϵQ ), normalised as F (0) = 1, is also computed. This non-perturbative correction continues to give the leading effect even when Q is finite, indicating the instability of operators for any values of Q . We also observe a phase transition at $$ epsilon Q=frac{N+8}{6sqrt{3}} $$ ϵQ=N+863 associated with the condensation of bounces, similar to the Gross-Witten-Wadia transition.
{"title":"Stability analysis of a non-unitary CFT","authors":"Masataka Watanabe","doi":"10.1007/jhep11(2023)042","DOIUrl":"https://doi.org/10.1007/jhep11(2023)042","url":null,"abstract":"A bstract We study instability of lowest dimension operator (i.e., the imaginary part of its operator dimension) in the rank- Q traceless symmetric representation of the O ( N ) Wilson-Fisher fixed point in D = 4 + ϵ . We find a new semi-classical bounce solution, which gives an imaginary part to the operator dimension of order $$ Oleft({epsilon}^{-1/2}exp left[-frac{N+8}{3epsilon }Fleft(epsilon Qright)right]right) $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>O</mml:mi> <mml:mfenced> <mml:mrow> <mml:msup> <mml:mi>ϵ</mml:mi> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> <mml:mo>/</mml:mo> <mml:mn>2</mml:mn> </mml:mrow> </mml:msup> <mml:mo>exp</mml:mo> <mml:mfenced> <mml:mrow> <mml:mo>−</mml:mo> <mml:mfrac> <mml:mrow> <mml:mi>N</mml:mi> <mml:mo>+</mml:mo> <mml:mn>8</mml:mn> </mml:mrow> <mml:mrow> <mml:mn>3</mml:mn> <mml:mi>ϵ</mml:mi> </mml:mrow> </mml:mfrac> <mml:mi>F</mml:mi> <mml:mfenced> <mml:mi>ϵQ</mml:mi> </mml:mfenced> </mml:mrow> </mml:mfenced> </mml:mrow> </mml:mfenced> </mml:math> in the double-scaling limit where $$ epsilon Qle frac{N+8}{6sqrt{3}} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>ϵQ</mml:mi> <mml:mo>≤</mml:mo> <mml:mfrac> <mml:mrow> <mml:mi>N</mml:mi> <mml:mo>+</mml:mo> <mml:mn>8</mml:mn> </mml:mrow> <mml:mrow> <mml:mn>6</mml:mn> <mml:msqrt> <mml:mn>3</mml:mn> </mml:msqrt> </mml:mrow> </mml:mfrac> </mml:math> is fixed. The form of F ( ϵQ ), normalised as F (0) = 1, is also computed. This non-perturbative correction continues to give the leading effect even when Q is finite, indicating the instability of operators for any values of Q . We also observe a phase transition at $$ epsilon Q=frac{N+8}{6sqrt{3}} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>ϵQ</mml:mi> <mml:mo>=</mml:mo> <mml:mfrac> <mml:mrow> <mml:mi>N</mml:mi> <mml:mo>+</mml:mo> <mml:mn>8</mml:mn> </mml:mrow> <mml:mrow> <mml:mn>6</mml:mn> <mml:msqrt> <mml:mn>3</mml:mn> </mml:msqrt> </mml:mrow> </mml:mfrac> </mml:math> associated with the condensation of bounces, similar to the Gross-Witten-Wadia transition.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135393061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A bstract We derive an effective action for charged plasmas with an anomalous (abelian) global current charge current using holography. The holographic description is captured by the dynamics of an Einstein-Maxwell-Chern-Simons theory in an asymptotically AdS spacetime. The ’t Hooft anomaly contribution, which is encoded in the Chern-Simons term, contributes at the Gaussian order in the effective action only in the momentum diffusion sector, where it leads to chiral shear waves. However, as we demonstrate, beyond the Gaussian order, there is non-trivial imprint of the parity-violating anomaly term in sound and charge diffusion dynamics as well.
本文利用全息技术推导了带电等离子体具有异常(阿贝尔)全局电流的有效作用。全息描述是由爱因斯坦-麦克斯韦-陈-西蒙斯理论在渐近AdS时空中的动力学捕获的。在chen - simons项中编码的' t Hooft异常贡献仅在动量扩散扇区的有效作用中以高斯阶贡献，在该扇区导致手性横波。然而，正如我们所证明的，在高斯阶之外，在声音和电荷扩散动力学中也存在违反宇称的异常项的非平凡印记。
{"title":"Anomalous hydrodynamics effective actions from holography","authors":"Mukund Rangamani, Julio Virrueta, Shuyan Zhou","doi":"10.1007/jhep11(2023)044","DOIUrl":"https://doi.org/10.1007/jhep11(2023)044","url":null,"abstract":"A bstract We derive an effective action for charged plasmas with an anomalous (abelian) global current charge current using holography. The holographic description is captured by the dynamics of an Einstein-Maxwell-Chern-Simons theory in an asymptotically AdS spacetime. The ’t Hooft anomaly contribution, which is encoded in the Chern-Simons term, contributes at the Gaussian order in the effective action only in the momentum diffusion sector, where it leads to chiral shear waves. However, as we demonstrate, beyond the Gaussian order, there is non-trivial imprint of the parity-violating anomaly term in sound and charge diffusion dynamics as well.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A bstract We study further the duality between semiclassical AdS 3 and formal CFT 2 ensembles. First, we study torus wormholes (Maldacena-Maoz wormholes with two torus boundaries) with one insertion or two insertions on each boundary and find that they give non-decaying contribution to the product of two torus one-point or two-point functions at late-time. Second, we study the ℤ 2 quotients of a torus wormhole such that the outcome has one boundary. We identify quotients that give non-decaying contributions to the torus two-point function at late-time. We comment on reflection (R) or time-reversal (T) symmetry vs. the combination RT that is a symmetry of any relativistic field theory. RT symmetry itself implies that to the extent that a relativistic quantum field theory exhibits random matrix statistics it should be of the GOE type for bosonic states and of the GSE type for fermionic states. We discuss related implications of these symmetries for wormholes.
{"title":"More on torus wormholes in 3d gravity","authors":"Cynthia Yan","doi":"10.1007/jhep11(2023)039","DOIUrl":"https://doi.org/10.1007/jhep11(2023)039","url":null,"abstract":"A bstract We study further the duality between semiclassical AdS 3 and formal CFT 2 ensembles. First, we study torus wormholes (Maldacena-Maoz wormholes with two torus boundaries) with one insertion or two insertions on each boundary and find that they give non-decaying contribution to the product of two torus one-point or two-point functions at late-time. Second, we study the ℤ 2 quotients of a torus wormhole such that the outcome has one boundary. We identify quotients that give non-decaying contributions to the torus two-point function at late-time. We comment on reflection (R) or time-reversal (T) symmetry vs. the combination RT that is a symmetry of any relativistic field theory. RT symmetry itself implies that to the extent that a relativistic quantum field theory exhibits random matrix statistics it should be of the GOE type for bosonic states and of the GSE type for fermionic states. We discuss related implications of these symmetries for wormholes.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Simon Badger, Jakub Kryś, Ryan Moodie, Simone Zoia
A bstract We compute the two-loop QED helicity amplitudes for the scattering of a lepton pair with an off-shell and an on-shell photon, 0 → $$ ell overline{ell}gamma gamma $$ ℓℓ¯γγ * , using the approximation of massless leptons. We express all master integrals relevant for the scattering of four massless particles with a single external off-shell leg up to two loops in a basis of algebraically independent multiple polylogarithm, which guarantees an efficient numerical evaluation and compact analytic representations of the amplitudes. Analytic forms of the amplitudes are reconstructed from numerical evaluations over finite fields. Our results complete the amplitude-level ingredients contributing to the N 3 LO predictions of electron-muon scattering eμ → eμ , which are required to meet the precision goal of the future MUonE experiment.
{"title":"Lepton-pair scattering with an off-shell and an on-shell photon at two loops in massless QED","authors":"Simon Badger, Jakub Kryś, Ryan Moodie, Simone Zoia","doi":"10.1007/jhep11(2023)041","DOIUrl":"https://doi.org/10.1007/jhep11(2023)041","url":null,"abstract":"A bstract We compute the two-loop QED helicity amplitudes for the scattering of a lepton pair with an off-shell and an on-shell photon, 0 → $$ ell overline{ell}gamma gamma $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>ℓ</mml:mi> <mml:mover> <mml:mi>ℓ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mi>γγ</mml:mi> </mml:math> * , using the approximation of massless leptons. We express all master integrals relevant for the scattering of four massless particles with a single external off-shell leg up to two loops in a basis of algebraically independent multiple polylogarithm, which guarantees an efficient numerical evaluation and compact analytic representations of the amplitudes. Analytic forms of the amplitudes are reconstructed from numerical evaluations over finite fields. Our results complete the amplitude-level ingredients contributing to the N 3 LO predictions of electron-muon scattering eμ → eμ , which are required to meet the precision goal of the future MUonE experiment.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135392649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A bstract We consider a natural asymmetric dark matter (ADM) model in the mirror twin Higgs (MTH). We show that it is possible to obtain the correct dark matter (DM) abundance when a twin baryon is the DM without the need of explicit breaking of the MTH ℤ 2 symmetry in the dimensionless couplings (i.e. without hard ℤ 2 breaking). We illustrate how this is possible in a specific baryogenesis setup, which also leads to ADM. In the simplest scenario we obtain m DM ~ O (1) GeV, just above the proton mass. We show estimates for direct detection rates at present and future experiments.
我们考虑了镜像孪生希格斯粒子(MTH)中的自然不对称暗物质(ADM)模型。我们证明，当双重子是DM时，可以获得正确的暗物质(DM)丰度，而不需要在无量纲耦合中显式破坏MTH - 2对称(即不需要硬破坏)。我们说明了这在一个特定的重子发生设置中是如何可能的，这也导致了adm。在最简单的情况下，我们得到m DM ~ O (1) GeV，刚好高于质子质量。我们给出了目前和未来实验中直接检出率的估计。
{"title":"Baryogenesis and dark matter in the mirror twin Higgs","authors":"Pedro Bittar, Gustavo Burdman, Larissa Kiriliuk","doi":"10.1007/jhep11(2023)043","DOIUrl":"https://doi.org/10.1007/jhep11(2023)043","url":null,"abstract":"A bstract We consider a natural asymmetric dark matter (ADM) model in the mirror twin Higgs (MTH). We show that it is possible to obtain the correct dark matter (DM) abundance when a twin baryon is the DM without the need of explicit breaking of the MTH ℤ 2 symmetry in the dimensionless couplings (i.e. without hard ℤ 2 breaking). We illustrate how this is possible in a specific baryogenesis setup, which also leads to ADM. In the simplest scenario we obtain m DM ~ O (1) GeV, just above the proton mass. We show estimates for direct detection rates at present and future experiments.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"55 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135430098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：