Journal of High Energy Physics最新文献_第10页

Impact of extreme magnetic fields on the QCD topological susceptibility in the vicinity of the crossover region 极端磁场对交叉区附近QCD拓扑磁化率的影响

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-30 DOI: 10.1007/JHEP12(2024)228

B. B. Brandt, G. Endrődi, J. J. Hernández Hernández, G. Markó

引用次数: 0

Graded transcendental functions: an application to four-point amplitudes with one off-shell leg 分级超越函数：一个离壳腿的四点振幅的应用

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-30 DOI: 10.1007/JHEP12(2024)215

Thomas Gehrmann, Johannes Henn, Petr Jakubčík, Jungwon Lim, Cesare Carlo Mella, Nikolaos Syrrakos, Lorenzo Tancredi, William J. Torres Bobadilla

{"title":"Graded transcendental functions: an application to four-point amplitudes with one off-shell leg","authors":"Thomas Gehrmann, Johannes Henn, Petr Jakubčík, Jungwon Lim, Cesare Carlo Mella, Nikolaos Syrrakos, Lorenzo Tancredi, William J. Torres Bobadilla","doi":"10.1007/JHEP12(2024)215","DOIUrl":"10.1007/JHEP12(2024)215","url":null,"abstract":"Several recent works have demonstrated the powerful algebraic simplifications that can be achieved for scattering amplitudes through a systematic grading of transcendental quantities. We develop these concepts to construct a minimal basis of functions tailored to a scattering amplitude in a general way. Starting with formal solutions for all master integral topologies, we organise the appearing functions by properties such as their symbol alphabet or letter adjacency. We rotate the basis such that functions with spurious features appear in the least possible number of basis elements. Since their coefficients must vanish for physical quantities, this approach avoids complex cancellations. As a first application, we evaluate all integral topologies relevant to the three-loop Hggg and ( Hgqoverline{q} ) amplitudes in the leading-colour approximation and heavy-top limit. We describe the derivation of canonical differential equation systems and present a method for fixing boundary conditions without the need for a full functional representation. Using multiple numerical reductions, we test the maximal transcendentality conjecture for Hggg and identify a new letter which appears in functions of weight 4 and 5. In addition, we provide the first direct analytic computation of a three-point form factor of the operator Tr(ϕ2) in planar ( mathcal{N} ) = 4 sYM and find agreement with numerical and bootstrapped results.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)215.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925532","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}

引用次数: 0

NuFit-6.0: updated global analysis of three-flavor neutrino oscillations NuFit-6.0：更新了三味中微子振荡的全局分析

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-30 DOI: 10.1007/JHEP12(2024)216

Ivan Esteban, M. C. Gonzalez-Garcia, Michele Maltoni, Ivan Martinez-Soler, João Paulo Pinheiro, Thomas Schwetz

{"title":"NuFit-6.0: updated global analysis of three-flavor neutrino oscillations","authors":"Ivan Esteban, M. C. Gonzalez-Garcia, Michele Maltoni, Ivan Martinez-Soler, João Paulo Pinheiro, Thomas Schwetz","doi":"10.1007/JHEP12(2024)216","DOIUrl":"10.1007/JHEP12(2024)216","url":null,"abstract":"We present an updated global analysis of neutrino oscillation data as of September 2024. The parameters θ12, θ13, ( Delta {m}_{21}^2 ), and ( mid Delta {m}_{3ell}^2mid ) (ℓ = 1, 2) are well-determined with relative precision at 3σ of about 13%, 8%, 15%, and 6%, respectively. The third mixing angle θ23 still suffers from the octant ambiguity, with no clear indication of whether it is larger or smaller than 45°. The determination of the leptonic CP phase δCP depends on the neutrino mass ordering: for normal ordering the global fit is consistent with CP conservation within 1σ, whereas for inverted ordering CP-violating values of δCP around 270° are favored against CP conservation at more than 3.6σ. While the present data has in principle 2.5–3σ sensitivity to the neutrino mass ordering, there are different tendencies in the global data that reduce the discrimination power: T2K and NOvA appearance data individually favor normal ordering, but they are more consistent with each other for inverted ordering. Conversely, the joint determination of ( mid Delta {m}_{3ell}^2mid ) from global disappearance data prefers normal ordering. Altogether, the global fit including long-baseline, reactor and IceCube atmospheric data results into an almost equally good fit for both orderings. Only when the χ2 table for atmospheric neutrino data from Super-Kamiokande is added to our χ2, the global fit prefers normal ordering with ∆χ2 = 6.1. We provide also updated ranges and correlations for the effective parameters sensitive to the absolute neutrino mass from β-decay, neutrinoless double-beta decay, and cosmology.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)216.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925496","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}

引用次数: 0

Exploring confinement in Anti-de Sitter space 探索反德西特空间中的约束

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-30 DOI: 10.1007/JHEP12(2024)218

Riccardo Ciccone, Fabiana De Cesare, Lorenzo Di Pietro, Marco Serone

{"title":"Exploring confinement in Anti-de Sitter space","authors":"Riccardo Ciccone, Fabiana De Cesare, Lorenzo Di Pietro, Marco Serone","doi":"10.1007/JHEP12(2024)218","DOIUrl":"10.1007/JHEP12(2024)218","url":null,"abstract":"We study Yang-Mills theory on four dimensional Anti-de Sitter space. The Dirichlet boundary condition cannot exist at arbitrarily large radius because it would give rise to colored asymptotic states in flat space. As observed in [1] this implies a deconfinement-confinement transition as the radius is increased. We gather hints on the nature of this transition using perturbation theory. We compute the anomalous dimensions of the lightest scalar operators in the boundary theory, which are negative for the singlet and positive for non-trivial representations. We also compute the correction to the coefficient CJ and we estimate that the singlet operator reaches marginality before the value of the coupling at which CJ = 0. These results favor the scenario of merger and annihilation as the most promising candidate for the transition. For the Neumann boundary condition, the lightest scalar operator is found to have a positive anomalous dimension, in agreement with the idea that this boundary condition extrapolates smoothly to flat space. The perturbative calculations are made possible by a drastic simplification of the gauge field propagator in Fried-Yennie gauge. We also derive a general result for the leading-order anomalous dimension of the displacement operator for a generic perturbation in Anti-de Sitter, showing that it is related to the beta function of bulk couplings.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)218.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925494","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}

引用次数: 0

Constraining the UV with the electroweak effective action 用电弱有效作用抑制紫外线

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-30 DOI: 10.1007/JHEP12(2024)210

Iberê Kuntz, Amanda Malagi

引用次数: 0

Leptogenesis in realistic flipped SU(5) 现实翻转SU的纤毛虫发生(5)

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-30 DOI: 10.1007/JHEP12(2024)211

Stephen F. King, George K. Leontaris, Luca Marsili, Ye-Ling Zhou

{"title":"Leptogenesis in realistic flipped SU(5)","authors":"Stephen F. King, George K. Leontaris, Luca Marsili, Ye-Ling Zhou","doi":"10.1007/JHEP12(2024)211","DOIUrl":"10.1007/JHEP12(2024)211","url":null,"abstract":"We study thermal leptogenesis in realistic supersymmetric flipped SU(5) × U(1) unification. As up-type quarks and neutrinos are arranged in the same multiplets, they exhibit strong correlations, and it is commonly believed that the masses of right-handed (RH) neutrinos are too hierarchical to fit the low-energy neutrino data. This pattern generally predicts a lightest RH neutrino too light to yield successful leptogenesis, with any lepton-antilepton asymmetry generated from heavier neutrinos being washed out unless special flavour structures are assumed. We propose a different scenario in which the lightest two RH neutrinos N1 and N2 have nearby masses of order 109 GeV, with thermal leptogenesis arising non-resonantly from both N1 and N2. We show that this pattern is consistent with all data on fermion masses and mixing and predicts the lightest physical left-handed neutrino mass to be smaller than about 10−7 eV. The Dirac phase, which does not take the maximal CP-violating value, plays an important role in leptogenesis.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)211.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925536","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}

引用次数: 0

Dynamics of dRGT ghost-free massive gravity in spherical symmetry 球对称dRGT无鬼质量重力动力学

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-27 DOI: 10.1007/JHEP12(2024)204

Emma Albertini, Jan Kożuszek, Toby Wiseman

{"title":"Dynamics of dRGT ghost-free massive gravity in spherical symmetry","authors":"Emma Albertini, Jan Kożuszek, Toby Wiseman","doi":"10.1007/JHEP12(2024)204","DOIUrl":"10.1007/JHEP12(2024)204","url":null,"abstract":"We focus on dRGT massive gravity in spherical symmetry in the limit of small graviton mass. Firstly we examine the minimal model. This does not exhibit a Vainshtein mechanism in spherical symmetry, but one may still ask what happens for spherical dynamics. We show that there are no regular time-dependent spherically symmetric solutions unless the matter has sufficiently large pressure. For matter that does not satisfy this, such as non-relativistic matter, any Cauchy slice of such a solution must necessarily have a point where the metric becomes singular. Only a weak assumption on the asymptotics is made. We then consider the next-to-minimal model. This has been argued to have a good Vainshtein mechanism in spherical symmetry, and hence be phenomenologically viable, provided the relative sign of the minimal and next-to-minimal mass terms is the same, and we restrict attention to this case. We find that regular behaviour requires the matter at the origin of symmetry to have positive pressure — in particular a massive scalar field fails to satisfy this condition. Furthermore it restricts non-relativistic matter so that the pressure is bounded from below in terms of the density and graviton mass in a manner that is at odds with a reasonable phenomenology. This suggests that realistic phenomenology will either require a resolution of singularities, or will require dynamics beyond the non-generic setting of spherical symmetry.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)204.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925711","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}

引用次数: 0

On the classical limit of the (sub)n-leading soft graviton theorems in D = 4 without deflection D = 4中（次）n领先软引力子定理的经典极限

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-27 DOI: 10.1007/JHEP12(2024)207

Samim Akhtar

引用次数: 0

ALP-ine quests at the LHC: hunting axion-like particles via peaks and dips in ( toverline{t} ) production 大型强子对撞机的碱性线探索：通过( toverline{t} )产量的高峰和低谷来寻找轴子样粒子

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-27 DOI: 10.1007/JHEP12(2024)197

Afiq Anuar, Anke Biekötter, Thomas Biekötter, Alexander Grohsjean, Sven Heinemeyer, Laurids Jeppe, Christian Schwanenberger, Georg Weiglein

{"title":"ALP-ine quests at the LHC: hunting axion-like particles via peaks and dips in ( toverline{t} ) production","authors":"Afiq Anuar, Anke Biekötter, Thomas Biekötter, Alexander Grohsjean, Sven Heinemeyer, Laurids Jeppe, Christian Schwanenberger, Georg Weiglein","doi":"10.1007/JHEP12(2024)197","DOIUrl":"10.1007/JHEP12(2024)197","url":null,"abstract":"We present an analysis of the sensitivity of current and future LHC searches for new spin-0 particles in top–anti-top-quark ( left(toverline{t}right) ) final states, focusing on generic axion-like particles (ALPs) that are coupled to top quarks and gluons. As a first step, we derive new limits on the effective ALP Lagrangian in terms of the Wilson coefficients ct and ( {c}_{overset{sim }{G}} ) based on the results of the CMS search using 35.9 fb−1 of data, collected at ( sqrt{s} ) = 13 TeV. We then investigate how the production of an ALP with generic couplings to gluons and top quarks can be distinguished from the production of a pseudoscalar which couples to gluons exclusively via a top-quark loop. To this end, we make use of the invariant ( toverline{t} ) mass distribution and angular correlations that are sensitive to the ( toverline{t} ) spin correlation. Using a mass of 400 GeV as an example, we find that already the data collected during Run 2 and Run 3 of the LHC provides an interesting sensitivity to the underlying nature of a possible new particle. We also analyze the prospects for data anticipated to be collected during the high-luminosity phase of the LHC. Finally, we compare the limits obtained from the ( toverline{t} ) searches to existing experimental bounds from LHC searches for narrow di-photon resonances, from measurements of the production of four top quarks, and from global analyses of ALP–SMEFT interference effects.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)197.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939328","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}

引用次数: 0

Surface operators and exact holography 表面操作和精确全息

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-27 DOI: 10.1007/JHEP12(2024)195

Changha Choi, Jaume Gomis, Raquel Izquierdo García

{"title":"Surface operators and exact holography","authors":"Changha Choi, Jaume Gomis, Raquel Izquierdo García","doi":"10.1007/JHEP12(2024)195","DOIUrl":"10.1007/JHEP12(2024)195","url":null,"abstract":"Surface operators are nonlocal probes of gauge theories capable of distinguishing phases that are not discernible by the classic Wilson-’t Hooft criterion. We prove that the correlation function of a surface operator with a chiral primary operator in ( mathcal{N} ) = 4 super Yang-Mills is a finite polynomial in the Yang-Mills coupling constant. Surprisingly, in spite of these observables receiving nontrivial quantum corrections, we find that these correlation functions are exactly captured in the ’t Hooft limit by supergravity in asymptotically AdS5 × S5 [1] ! We also calculate exactly the surface operator vacuum expectation value and the correlator of a surface operator with 1/8-BPS Wilson loops using supersymmetric localization. We demonstrate that these correlation functions in ( mathcal{N} ) = 4 SYM realize in a nontrivial fashion the conjectured action of S-duality. Finally, we perturbatively quantize ( mathcal{N} ) = 4 SYM around the surface operator singularity and identify the Feynman diagrams that, when summed over, reproduce the exact result obtained by localization.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)195.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939330","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}

引用次数: 0