Journal of High Energy Physics最新文献

{"title":"Bootstrapping the spinning two body problem in dynamical Chern-Simons gravity using worldline QFT","authors":"Arpan Bhattacharyya,&nbsp;Debodirna Ghosh,&nbsp;Saptaswa Ghosh,&nbsp;Sounak Pal","doi":"10.1007/JHEP04(2025)175","DOIUrl":"10.1007/JHEP04(2025)175","url":null,"abstract":"<p>In this paper, we compute the WQFT partition function, specifically the eikonal phase in a black hole scattering event in the dynamical Chern-Simons theory, using the techniques of spinning worldline quantum field theory. We consider the scattering of spinning black holes and highlight the necessary details for the calculation of the partition function. We present the <i>ϵ</i>-expansion of the essential two-loop integrals using Integration-by-Parts (IBP) reduction and differential equation techniques, which we then utilize to compute the linear-in-order spin eikonal phase up to 3PM. Additionally, we discuss the dependence of the phase on the spin orientations of the black holes.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)175.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875254","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":"Neutrinoless double β decay with light sterile neutrinos: the contact terms","authors":"Vincenzo Cirigliano,&nbsp;Wouter Dekens,&nbsp;Sebastián Urrutia Quiroga","doi":"10.1007/JHEP04(2025)181","DOIUrl":"10.1007/JHEP04(2025)181","url":null,"abstract":"<p>We study neutrinoless double-beta decay in extensions of the Standard Model that include <i>n</i> right-handed neutrino singlets, with masses <i>m</i>_<i>s</i> below the GeV scale. Generalizing recently developed matching methods, we determine the <i>m</i>_<i>s</i> dependence of the short-range <i>nn</i> → <i>pp</i> couplings that appear to leading order in the chiral effective field theory description of neutrinoless double beta decay. We focus on two scenarios, corresponding to the minimal <i>ν</i>SM and left-right symmetric models. We illustrate the impact of our new results in the case of the <i>ν</i>SM, showing a significant impact on the neutrinoless double-beta decay half-life when <i>m</i>_<i>s</i> is in the 200–800 MeV range.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)181.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871150","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":"Instanton corrections to the MSTB Kink mass","authors":"Jarah Evslin,&nbsp;Alberto García Martín-Caro,&nbsp;Andrzej Wereszczyński","doi":"10.1007/JHEP04(2025)173","DOIUrl":"10.1007/JHEP04(2025)173","url":null,"abstract":"<p>The Montonen-Sarker-Trullinger-Bishop (MSTB) model enjoys two classically degenerate kink solutions in the same topological sector. We construct the instanton that interpolates between them and argue that the two lowest lying Hamiltonian eigenstates in the kink sector of the corresponding quantum theory correspond to symmetric and antisymmetric combinations of coherent states localized at these two solutions. We use the instanton gas approximation to provide a simple, analytic formula for the leading contribution to the mass splitting between these two states.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)173.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865429","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":"Scale-invariant total decay width Γ(H → ( boverline{b} )) using the novel method of characteristic operator","authors":"Jiang Yan,&nbsp;Xing-Gang Wu,&nbsp;Jian-Ming Shen,&nbsp;Xu-Dong Huang,&nbsp;Zhi-Fei Wu","doi":"10.1007/JHEP04(2025)184","DOIUrl":"10.1007/JHEP04(2025)184","url":null,"abstract":"<p>According to the renormalization group invariance, any physical observable should be invariant under different renormalization schemes and scales. Nevertheless, a fixed-order pQCD approximant cannot inherently satisfy this requirement, giving rise to the conventional scheme-and-scale ambiguities. The principle of maximum conformality (PMC) offers a process-independent approach to address these two types of ambiguities. In practice, it is necessary to handle the <i>n</i>_<i>f</i> -terms in the pQCD series with caution to obtain accurate PMC predictions. In this paper, a novel method via using the characteristic operator (CO) <span>( {hat{D}}_{n_{gamma },{n}_{beta }} )</span> is proposed to extend the applicability of PMC, which is a theoretical generalization of previous PMC single-scale setting approach. The CO framework not only streamlines derivations for complex scenarios, yielding simplified procedures and more compact expressions, but also achieves a scheme-and-scale invariant pQCD series by fixing the correct effective magnitude of <i>α</i>_<i>s</i> and the running mass simultaneously. Both are well matched with the expansion coefficients of the series, leading to the wanted scheme-and-scale invariant conformal series. As an example, we show the achievement of scale-invariant N⁴LO total decay width Γ(<i>H →</i> <span>( boverline{b} )</span>) under the <span>( overline{textrm{MS}} )</span>-scheme. Using the CO framework, its effective coupling <i>α</i>_<i>s</i>(<i>Q</i>_*) and effective <i>b</i>-quark <span>( overline{textrm{MS}} )</span>-mass <span>( {overline{m}}_bleft({Q}_{ast}right) )</span> are determined by absorbing all non-conformal {<i>β</i>_<i>i</i>}-terms from the renormalization group equations for either <i>α</i>_<i>s</i> or <span>( {overline{m}}_b )</span> simultaneously. The PMC scale is fixed up to N³LL-accuracy, <i>Q</i>_* = 55<i>.</i>2916 GeV and a scale-invariant total decay width is obtained, <span>( Gamma left(Hto boverline{b}right)={2.3819}_{-0.0231}^{+0.0230} )</span> MeV, whose errors are squared averages of the ones associated with ∆<i>α</i>_<i>s</i>(<i>M</i>_<i>Z</i>) = ±0<i>.</i>0009, ∆<i>M</i>_<i>H</i> = 0<i>.</i>11 GeV, <span>( Delta {overline{m}}_bleft({overline{m}}_bright) )</span> = ±0<i>.</i>007 GeV, and the uncalculated N⁵LO contributions ∆Γ = ±0<i>.</i>0001 MeV predicted via Bayesian analysis with the degree-of-belief DoB = 95<i>.</i>5%.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)184.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875344","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":"Unified view of scalar and vector dark matter solitons","authors":"Hong-Yi Zhang","doi":"10.1007/JHEP04(2025)174","DOIUrl":"10.1007/JHEP04(2025)174","url":null,"abstract":"<p>The existence of solitons — stable, long-lived, and localized field configurations — is a generic prediction for ultralight dark matter. These solitons, known by various names such as boson stars, axion stars, oscillons, and Q-balls depending on the context, are typically treated as distinct entities in the literature. This study aims to provide a unified perspective on these solitonic objects for real or complex, scalar or vector dark matter, considering self-interactions and nonminimal gravitational interactions. We demonstrate that these solitons share universal nonrelativistic properties, such as conserved charges, mass-radius relations, stability and profiles. Without accounting for alternative interactions or relativistic effects, distinguishing between real and complex scalar dark matter is challenging. However, self-interactions differentiate real and complex vector dark matter due to their different dependencies on the macroscopic spin density of dark matter waves. Furthermore, gradient-dependent nonminimal gravitational interactions impose an upper bound on soliton amplitudes, influencing their mass distribution and phenomenology in the present-day universe.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)174.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871148","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":"A ( {mathbbm{CP}}^2 ) SMEFT","authors":"N. S. Manton","doi":"10.1007/JHEP04(2025)180","DOIUrl":"10.1007/JHEP04(2025)180","url":null,"abstract":"<p>An extension of the Standard Model is proposed, where the Higgs field is valued in the complex projective plane <span>( {mathbbm{CP}}^2 )</span>, rather than <i>ℂ</i>². Its geometry is consistent with U(2) ≃ (SU(2) × U(1))/<i>ℤ</i>₂ electroweak gauge symmetry. The leading terms in the Lagrangian, beyond those of the Standard Model, are much more tightly constrained than in general SMEFTs, and the custodial SO(4) symmetry of the Higgs sector is mildly broken. The predicted tree-level deviations from Standard Model phenomenology depend on a single large mass parameter <i>M</i>. Current experimental data imply that <i>M</i> is a few TeV or larger.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)180.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865428","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":"O-vertex, O7+-plane, and topological vertex","authors":"Sung-Soo Kim,&nbsp;Xiaobin Li,&nbsp;Futoshi Yagi,&nbsp;Rui-Dong Zhu","doi":"10.1007/JHEP04(2025)182","DOIUrl":"10.1007/JHEP04(2025)182","url":null,"abstract":"<p>We revisit the instanton partition function for 5d <span>( mathcal{N} )</span> = 1 SO(<i>N</i>) gauge theories compactified on S¹, computed from the topological vertex formalism with the O-vertex based on a 5-brane web diagram with an O5-plane. We introduce an identity that enables us to rewrite the unrefined partition function into a new expression in terms of the Nekrasov factors summed over Young diagrams, which can be interpreted as the freezing of an O7-plane. Based on this, we propose topological vertex formalism with an O7⁺-plane.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)182.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865408","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":"Causal and stable superfluid hydrodynamics","authors":"Raphael E. Hoult,&nbsp;Ashish Shukla","doi":"10.1007/JHEP04(2025)172","DOIUrl":"10.1007/JHEP04(2025)172","url":null,"abstract":"<p>We investigate the linearized stability and causality properties of relativistic viscous superfluid hydrodynamics. The Landau-Lifshitz-Clark-Putterman formulation for the theory of relativistic viscous superfluids suffers from the same instability and acausality issues as the relativistic Navier-Stokes equation for normal fluids when written in the formulations of Eckart or Landau and Lifshitz. We show that conditions to ensure stability and causality can be satisfied with judicious redefinitions of the hydrodynamic variables. The conditions we obtain hold at non-zero superfluid velocity as well.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)172.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871146","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":"Open string field theory in lightcone gauge","authors":"Theodore Erler","doi":"10.1007/JHEP04(2025)176","DOIUrl":"10.1007/JHEP04(2025)176","url":null,"abstract":"<p>We study covariant open bosonic string field theory in lightcone gauge. When lightcone gauge is well-defined, we find two results. First, the vertices of the gauge-fixed action consist of Mandelstam diagrams with stubs covering specific portions of the moduli spaces of Riemann surfaces. This is true regardless of how the vertices of the original covariant string field theory are constructed (e.g. through minimal area metrics, hyperbolic geometry, and so on). Second, the portions of moduli space covered by gauge-fixed vertices are changed relative to those covered by the original covariant vertices. The extra portions are supplied through the exchange of longitudinal degrees of freedom in scattering processes.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)176.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871153","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":"Self-Energy approximation for the running coupling constant in thermal ϕ4 theory using Imaginary Time Formalism","authors":"K. Arjun,&nbsp;A. M. Vinodkumar,&nbsp;Vishnu Mayya Bannur,&nbsp;Munshi G. Mustafa","doi":"10.1007/JHEP04(2025)178","DOIUrl":"10.1007/JHEP04(2025)178","url":null,"abstract":"<p>We investigate the temperature dependence of the mass scale, running coupling constant, and running mass in thermal <i>ϕ</i>⁴ theory using the Imaginary Time Formalism (ITF). Employing dimensional regularization and the minimal subtraction scheme, we compute the self-energy up to two-loop order. We introduce a novel Self-Energy Approximation (SEA), which equates the thermal and non-thermal self-energies in the zero external momentum limit. This approximation, combined with the renormalization group equation, imposes constraints that naturally lead to a temperature-dependent mass scale, <i>μ</i>(<i>T</i>), ensuring consistent behavior of the running coupling constant and running mass at finite temperatures. Using these results, the free energy density is evaluated at two-loop order and compared with the quasiparticle model.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)178.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871149","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}