{"title":"Rational QCD loop amplitudes and quantum theories on twistor space","authors":"Lance J. Dixon, Anthony Morales","doi":"10.1007/JHEP03(2025)188","DOIUrl":"10.1007/JHEP03(2025)188","url":null,"abstract":"<p>We show how curing an anomaly of the twistor uplift of self-dual Yang-Mills theory implies linear relations among one-loop, <i>n</i>-gluon, color-ordered subamplitudes in QCD, when all <i>n</i> gluon helicities are positive, or when exactly one is negative. We compute the number of linearly independent subamplitudes as determined by these relations, in terms of unsigned Stirling numbers. Then we use a momentum-twistor parametrization to show that there are no further linear dependencies.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)188.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pravesh Chndra Awasthi, Jai More, Akhila Kumar Pradhan, Kumar Rao, Purushottam Sahu, S. Uma Sankar
{"title":"Charged Lepton Flavour Violating meson decays in seesaw models","authors":"Pravesh Chndra Awasthi, Jai More, Akhila Kumar Pradhan, Kumar Rao, Purushottam Sahu, S. Uma Sankar","doi":"10.1007/JHEP03(2025)183","DOIUrl":"10.1007/JHEP03(2025)183","url":null,"abstract":"<p>The occurrence of neutrino oscillations demands the existence of flavour violation in charged lepton sector. The relation between the branching ratios of different charged lepton flavour violating (CLFV) decay modes depends on the details of the neutrino mass model. In this work, we consider the three types of simple seesaw mechanisms of neutrino masses and study the correlation between the radiative CLFV decays and the meson CLFV decays. We find that the meson CLFV decay branching ratios are negligibly small in type-II seesaw mechanism whereas they are constrained to be at least three (two) orders of magnitude smaller than the radiative CLFV decay branching ratios in the case of type-I (type-III) seesaw mechanism. Thus the relationship between these two modes of CLFV decays helps in distinguishing between different types of seesaw mechanism. If, the branching ratios of CLFV decays of mesons are larger than those of radiative CLFV decays, it provides a strong hint that the neutrino mass generating mechanism is more complicated than simple seesaw.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)183.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"3D TFTs from 4d ( mathcal{N} ) = 2 BPS particles","authors":"Davide Gaiotto, Heeyeon Kim","doi":"10.1007/JHEP03(2025)173","DOIUrl":"10.1007/JHEP03(2025)173","url":null,"abstract":"<p>We propose a general strategy to build three-dimensional gauge theories with four supercharges which enjoy a supersymmetry enhancement in the IR. The resulting IR SCFTs admit topological twists with particularly nice properties, as well as boundary rational chiral algebras such that the associated Modular Tensor Categories are controlled by the topological twist. The theories arise from a twisted circle compactification of four-dimensional theories of Argyres-Douglas type. We develop a novel algorithm to compute or manipulate protected quantities associated to these theories, such as ellipsoid partition functions and superconformal indices and half-indices.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)173.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Entanglement, (text{T}overline{text{T} }) and rotating black holes","authors":"Debarshi Basu, Saikat Biswas","doi":"10.1007/JHEP03(2025)167","DOIUrl":"10.1007/JHEP03(2025)167","url":null,"abstract":"<p>In this work, we investigate the entanglement structure in a <span>(text{T}overline{text{T} })</span>-deformed holographic CFT<sub>2</sub> with a conserved angular momentum. We utilize conformal perturbation theory to compute the leading order correction to the entanglement entropy and the reflected entropy due to the <span>(text{T}overline{text{T} })</span> deformation in the limit of large central charge. In the dual bulk perspective described by a rotating BTZ black hole with a finite radial cut-off, we compute the holographic entanglement entropy and the entanglement wedge cross-section and observe perfect agreement with our field theoretic computation for small values of the deformation parameter.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)167.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ginzburg-Landau description of a class of non-unitary minimal models","authors":"Andrei Katsevich, Igor R. Klebanov, Zimo Sun","doi":"10.1007/JHEP03(2025)170","DOIUrl":"10.1007/JHEP03(2025)170","url":null,"abstract":"<p>It has been proposed that the Ginzburg-Landau description of the non-unitary conformal minimal model <i>M</i> (3, 8) is provided by the Euclidean theory of two real scalar fields with third-order interactions that have imaginary coefficients. The same lagrangian describes the non-unitary model <i>M</i> (3, 10), which is a product of two Yang-Lee theories <i>M</i> (2, 5), and the Renormalization Group flow from it to <i>M</i> (3, 8). This proposal has recently passed an important consistency check, due to Y. Nakayama and T. Tanaka, based on the anomaly matching for non-invertible topological lines. In this paper, we elaborate the earlier proposal and argue that the two-field theory describes the <i>D</i> series modular invariants of both <i>M</i> (3, 8) and <i>M</i> (3, 10). We further propose the Ginzburg-Landau descriptions of the entire class of <i>D</i> series minimal models <i>M</i> (<i>q</i>, 3<i>q</i> – 1) and <i>M</i> (<i>q</i>, 3<i>q</i> + 1), with odd integer <i>q</i>. They involve <span>( mathcal{PT} )</span> symmetric theories of two scalar fields with interactions of order <i>q</i> multiplied by imaginary coupling constants.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)170.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the impact of the mixed Z/γ PDF at muon colliders","authors":"David Marzocca, Alfredo Stanzione","doi":"10.1007/JHEP03(2025)171","DOIUrl":"10.1007/JHEP03(2025)171","url":null,"abstract":"<p>We study the role of the <i>Z</i>/<i>γ</i>-interference parton distribution function (PDF) in high-energy muon colliders. We review how this PDF emerges when electroweak interactions are applied to the collinear splitting process and show that the leading-order approximation is significantly suppressed due to an accidental cancellation. However, this suppression does not appear in the leading-logarithm resummed numerical result, where the <i>Z</i>/<i>γ</i> PDF is instead comparable to those of other electroweak gauge bosons. By extending the analytical approximation to next-to-leading order, we show the mechanism by which the suppression is lifted and provide a more accurate approximation to the numerical result. Furthermore, we explore the impact of the <i>Z</i>/<i>γ</i> PDF in several processes at future muon colliders. High-energy Compton scattering is identified as a promising process for observing experimentally this peculiar electroweak effect with high precision. We also quantify the impact of the <i>Z</i>/<i>γ</i> PDF on Higgs physics and, as a new physics example, in resonant single-production of axion-like particles (ALP).</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)171.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Claudio Bonanno, Margarita García Pérez, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa
{"title":"The mass of the gluino-glue bound state in large-N ( mathcal{N} ) = 1 Supersymmetric Yang-Mills theory","authors":"Claudio Bonanno, Margarita García Pérez, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa","doi":"10.1007/JHEP03(2025)174","DOIUrl":"10.1007/JHEP03(2025)174","url":null,"abstract":"<p>We provide a first-principles non-perturbative determination of the mass of the lightest gluino-gluon bound state (gluino-glue) in large-<i>N</i> <span>( mathcal{N} )</span> = 1 Supersymmetric Yang-Mills theory by means of numerical Monte Carlo simulations of the lattice-discretized theory, and exploiting large-<i>N</i> twisted volume reduction. Our large-<i>N</i> determination is consistent with naive extrapolation of previously-known SU(2) and SU(3) results.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)174.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Benjamín Grinstein, Xiaochuan Lu, Carlos Miró, Pablo Quílez
{"title":"Accidental symmetries, Hilbert series, and friends","authors":"Benjamín Grinstein, Xiaochuan Lu, Carlos Miró, Pablo Quílez","doi":"10.1007/JHEP03(2025)172","DOIUrl":"10.1007/JHEP03(2025)172","url":null,"abstract":"<p>Accidental symmetries in effective field theories can be established by computing and comparing Hilbert series. This invites us to study them with the tools of invariant theory. Applying this technology, we spotlight three classes of accidental symmetries that hold to all orders for non-derivative interactions. They are broken by derivative interactions and become ordinary finite-order accidental symmetries. To systematically understand the origin and the patterns of accidental symmetries, we introduce a novel mathematical construct — a (non-transitive) binary relation between subgroups that we call <i>friendship</i>. Equipped with this, we derive new criteria for all-order accidental symmetries in terms of <i>friends</i>, and criteria for finite-order accidental symmetries in terms of <i>friends ma non troppo</i>. They allow us to verify and identify accidental symmetries more efficiently without computing the Hilbert series. We demonstrate the success of our new criteria by applying them to a variety of sample accidental symmetries, including the custodial symmetry in the Higgs sector of the Standard Model effective field theory.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)172.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carlota Andres, Fabio Dominguez, Jack Holguin, Cyrille Marquet, Ian Moult
{"title":"Towards an interpretation of the first measurements of energy correlators in the quark-gluon plasma","authors":"Carlota Andres, Fabio Dominguez, Jack Holguin, Cyrille Marquet, Ian Moult","doi":"10.1007/JHEP03(2025)166","DOIUrl":"10.1007/JHEP03(2025)166","url":null,"abstract":"<p>Energy correlators have recently been proposed as a class of jet substructure observables that directly link experimental measurements of the asymptotic energy flux with the field theoretic description of the underlying microscopic dynamics. This link holds particular promise in heavy-ion physics, where both experimental measurements and theoretical interpretations are inherently complex. With recent measurements of energy correlators in proton-proton collisions, the first measurement of these observables on inclusive jets in heavy-ion collisions underscores the importance of a theoretical understanding of their behavior in this complex environment. In this manuscript, we extend our previous calculations to account for several effects necessary for a qualitative understanding of the behavior of energy correlators on inclusive jets in heavy-ion collisions. Through a semi-analytic approach implemented in a hydrodynamically expanding quark-gluon plasma (QGP), we account for medium-induced radiation with leading broadening effects, selection biases arising from energy loss, and a description of the confinement transition. Our results represent a crucial first step towards interpreting the measurements of energy correlators on inclusive jets in heavy-ion collisions, which marks a significant milestone in connecting heavy-ion experiment and fundamental quantum field theory, in the quest to disentangle the microscopic dynamics of the QGP.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)166.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lumos extrema","authors":"Upamanyu Moitra","doi":"10.1007/JHEP03(2025)168","DOIUrl":"10.1007/JHEP03(2025)168","url":null,"abstract":"<p>We consider trajectories of massless particles in the presence of charged black holes in asymptotically AdS spacetimes in arbitrary dimensions. We study the properties of the photon ring in the (near-)extremal limit and show that the photon ring can probe the near-horizon region in two different scenarios: in high enough number of spacetime dimensions or when the massless particle carries an electric charge. We propose a simple i<i>ϵ</i>-prescription for implementing the JWKB approximation and show its utility in various contexts. We calculate the quasi-normal modes for charged fields in the eikonal limit and show the emergence of a new time-scale of relaxation in the dual field theory side. In the near-extremal limit, we show generally that the time-scale of decay of the perturbations is governed by the chemical potential. We also verify our analytical results numerically. The i<i>ϵ</i>-prescription allows us to study the superradiant modes and the associated instabilities in the eikonal limit easily. We comment on some related aspects regarding near-extremal black holes.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 3","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP03(2025)168.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}