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Two loop mass renormalisation in heterotic string theory: NS states 异质性弦理论中的双环质量重整化:NS态
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-09 DOI: 10.1007/jhep11(2023)052
Ritabrata Bhattacharya
{"title":"Two loop mass renormalisation in heterotic string theory: NS states","authors":"Ritabrata Bhattacharya","doi":"10.1007/jhep11(2023)052","DOIUrl":"https://doi.org/10.1007/jhep11(2023)052","url":null,"abstract":"A bstract In this work computation of the renormalised mass at two loop order for the NS sector of heterotic string theory is attempted. We first implement the vertical integration prescription for choosing a section avoiding the spurious poles due to the presence of a required number of picture changing operators. As a result the relevant amplitude on genus 2 Riemann surface can be written as a boundary term. We then identify the 1PI region of the moduli space having chosen a gluing compatible local coordinates around the external punctures. We also identify the relevant integrands and the relevant region of integration for the modular parameters at the boundary.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":" 42","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135293036","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}
引用次数: 1
Higgs probes of axion-like particles 希格斯探测类轴子粒子
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-09 DOI: 10.1007/jhep11(2023)046
Masashi Aiko, Motoi Endo
{"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}
引用次数: 0
Krylov complexity and chaos in quantum mechanics 量子力学中的克雷洛夫复杂性和混沌
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-08 DOI: 10.1007/jhep11(2023)040
Koji Hashimoto, Keiju Murata, Norihiro Tanahashi, Ryota Watanabe
{"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}
引用次数: 11
Leading loops in cosmological correlators 宇宙学相关器的前导回路
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-08 DOI: 10.1007/jhep11(2023)038
Mang Hei Gordon Lee, Ciaran McCulloch, Enrico Pajer
{"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}
引用次数: 8
Lighting up the LHC with Dark Matter 用暗物质点亮LHC
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-08 DOI: 10.1007/jhep11(2023)037
Sebastian Baum, Marcela Carena, Tong Ou, Duncan Rocha, Nausheen R. Shah, Carlos E. M. Wagner
{"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}
引用次数: 0
Stability analysis of a non-unitary CFT 非酉CFT的稳定性分析
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-08 DOI: 10.1007/jhep11(2023)042
Masataka Watanabe
{"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}
引用次数: 4
Anomalous hydrodynamics effective actions from holography 来自全息术的异常流体动力学有效动作
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-08 DOI: 10.1007/jhep11(2023)044
Mukund Rangamani, Julio Virrueta, Shuyan Zhou
{"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}
引用次数: 0
More on torus wormholes in 3d gravity 更多关于三维重力中的环面虫洞
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-08 DOI: 10.1007/jhep11(2023)039
Cynthia Yan
{"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}
引用次数: 3
Lepton-pair scattering with an off-shell and an on-shell photon at two loops in massless QED 无质量QED中两个环上脱壳光子和上壳光子的轻子对散射
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-08 DOI: 10.1007/jhep11(2023)041
Simon Badger, Jakub Kryś, Ryan Moodie, Simone Zoia
{"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}
引用次数: 6
Baryogenesis and dark matter in the mirror twin Higgs 镜像孪生希格斯粒子中的重子生成和暗物质
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-08 DOI: 10.1007/jhep11(2023)043
Pedro Bittar, Gustavo Burdman, Larissa Kiriliuk
{"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}
引用次数: 1
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