Nuclear Physics B最新文献

{"title":"Re-parameterization invariance of FRW model: Supervariable and BRST approaches","authors":"B. Chauhan,&nbsp;R. Tripathi","doi":"10.1016/j.nuclphysb.2025.116816","DOIUrl":"10.1016/j.nuclphysb.2025.116816","url":null,"abstract":"<div><div>We perform the Becchi-Rouet-Stora-Tyutin (BRST) quantization of a <span><math><mo>(</mo><mn>0</mn><mo>+</mo><mn>1</mn><mo>)</mo></math></span>-dimensional cosmological Friedmann-Robertson-Walker (FRW) model. This quantization leverages the classical infinitesimal and continuous re-parameterization symmetry transformations of the system. To derive the nilpotent re-parameterization invariant BRST-anti-BRST symmetry transformations for the scale factor and corresponding momentum variables present in the cosmological FRW model, we employ the modified Bonora-Tonin supervariable approach (MBTSA) to BRST formalism. Through this approach, we also establish the BRST-anti-BRST invariant Curci-Ferrari (CF)-type restriction for this cosmological re-parameterization invariant model. Further, we obtain the off-shell nilpotent quantum BRST-anti-BRST symmetry transformations for other variables within the model using the (anti-)chiral supervariable approach (ACSA) to BRST formalism. Within the framework of ACSA, the CF-type restriction is demonstrated through two key aspects: (<em>i</em>) the invariance of the coupled Lagrangians under symmetry transformations, and <span><math><mo>(</mo><mi>i</mi><mi>i</mi><mo>)</mo></math></span> the absolute anti-commutativity of the conserved BRST-anti-BRST charges. Notably, applying the MBTSA to a physical cosmological system, specifically a one-dimensional one, constitutes a novel contribution to this work. Additionally, in the application of ACSA, we restrict our analysis to (anti-)chiral super expansions of supervariables, leading to the unique observation of the absolute anti-commutativity of the conserved BRST-anti-BRST charges. Moreover, we highlight that the CF-type restriction demonstrates a universal nature, remaining consistent across any re-parameterization invariant models in general D-dimensional spacetime.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116816"},"PeriodicalIF":2.5,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Torus knots and generalized Schröder paths","authors":"Marko Stošić ,&nbsp;Piotr Sułkowski","doi":"10.1016/j.nuclphysb.2025.116814","DOIUrl":"10.1016/j.nuclphysb.2025.116814","url":null,"abstract":"<div><div>We relate invariants of torus knots to the counts of a class of lattice paths, which we call generalized Schröder paths. We determine generating functions of such paths, located in a region determined by a type of a torus knot under consideration, and show that they encode colored HOMFLY-PT polynomials of this knot. The generators of uncolored HOMFLY-PT homology correspond to a basic set of such paths. Invoking the knots-quivers correspondence, we express generating functions of such paths as quiver generating series, and also relate them to quadruply-graded knot homology. Furthermore, we determine corresponding A-polynomials, which provide algebraic equations and recursion relations for generating functions of generalized Schröder paths. The lattice paths of our interest explicitly enumerate BPS states associated to knots via brane constructions, as well as encode 3-dimensional <span><math><mi>N</mi><mo>=</mo><mn>2</mn></math></span> theories.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116814"},"PeriodicalIF":2.5,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 modern look at the oscillation physics case for a neutrino factory","authors":"Peter B. Denton ,&nbsp;Julia Gehrlein","doi":"10.1016/j.nuclphysb.2025.116818","DOIUrl":"10.1016/j.nuclphysb.2025.116818","url":null,"abstract":"<div><div>The next generation of neutrino oscillation experiments, JUNO, DUNE, and HK, are under construction now and will collect data over the next decade and beyond. As there are no approved plans to follow up this program with more advanced neutrino oscillation experiments, we consider here one option that had gained considerable interest more than a decade ago: a neutrino factory. Such an experiment uses stored muons in a racetrack configuration with extremely well characterized decays reducing systematic uncertainties and providing for more oscillation channels. Such a machine could also be one step towards a high energy muon collider program. We consider a long-baseline configuration to SURF using the DUNE far detectors or modifications thereof, and compare the expected sensitivities of the three-flavor oscillation parameters to the anticipated results from DUNE and HK. We show optimal beam configurations, the impact of charge identification, the role of statistics and systematics, and the expected precision to the relevant standard oscillation parameters in different DUNE vs. neutrino factory configurations.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116818"},"PeriodicalIF":2.5,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Generalized uncertainty principle and the Zeeman effect: Relativistic corrections unveiled","authors":"Gaurav Bhandari ,&nbsp;S.D. Pathak ,&nbsp;Manabendra Sharma","doi":"10.1016/j.nuclphysb.2025.116817","DOIUrl":"10.1016/j.nuclphysb.2025.116817","url":null,"abstract":"<div><div>In this paper, we calculate the relativistic corrections to the Zeeman effect for hydrogen-like atoms based on the Generalized Uncertainty Principle (GUP). We propose a relativistic GUP algebra using the Stetsko and Tkachuk approximation and incorporate these corrections into the Zeeman effect. In the relativistic limit, our results recover previously derived GUP corrections as well as the standard Lande energy shift expression when GUP effects are absent. This work presents a generalized expression that accounts for both relativistic and GUP corrections to the Zeeman effect.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116817"},"PeriodicalIF":2.5,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Stability of multibrane models","authors":"Marek Olechowski","doi":"10.1016/j.nuclphysb.2025.116807","DOIUrl":"10.1016/j.nuclphysb.2025.116807","url":null,"abstract":"<div><div>Multibrane 5-dimensional models with a warped extra spatial dimension compactified on an <span><math><msup><mrow><mi>S</mi></mrow><mrow><mn>1</mn></mrow></msup><mo>/</mo><msub><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> orbifold are investigated. The Goldberger-Wise field, with appropriate bulk and brane potentials, is utilized to fix the brane positions. However, not all configurations with fixed brane positions are stable. Stability against small scalar perturbations of the metric and the Goldberger-Wise field was so far analyzed only for 2-brane models. Generalization of such analysis for multibrane models is the main subject of the present work. Stability of brane configurations is closely related to the spectrum of radions: namely, the existence of any tachyonic radion indicates instability, while models with positive squared masses for all radions are stable. The necessary and sufficient conditions for each of these possibilities are derived for multibrane models and constitute the main result of this paper. Additionally, some properties of radions, particularly their relation to distances between and along branes, are discussed.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1011 ","pages":"Article 116807"},"PeriodicalIF":2.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Rotation effects on the graphene wormhole energy levels","authors":"G.Q. Garcia ,&nbsp;P.J. Porfírio ,&nbsp;C. Furtado ,&nbsp;D.C. Moreira","doi":"10.1016/j.nuclphysb.2025.116793","DOIUrl":"10.1016/j.nuclphysb.2025.116793","url":null,"abstract":"<div><div>In this work, we are interested in how spinning effects influence the electronic properties of the graphene wormhole. For this purpose, we have described the graphene by wormhole background based on the model developed by González and his co-workers. By applying a coordinate transformation in the metric of the graphene wormhole, we can introduce rotating effects. In the continuum limit, by solving the massless Dirac equation in the context of a rotating wormhole background, we obtain the Landau levels for the rotating graphene wormhole. We still have exposed the analogy between the graphene wormhole and fermions on the Gödel-type spacetime.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1011 ","pages":"Article 116793"},"PeriodicalIF":2.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Analyzing gravastar structure with the Finch-Skea metric in extended modified symmetric teleparallel gravity","authors":"Iqra Ibrar,&nbsp;M. Sharif","doi":"10.1016/j.nuclphysb.2025.116791","DOIUrl":"10.1016/j.nuclphysb.2025.116791","url":null,"abstract":"<div><div>This study analyzes the physical features of a gravastar within the <span><math><mi>f</mi><mo>(</mo><mi>Q</mi><mo>,</mo><mi>T</mi><mo>)</mo></math></span> gravity framework, where <span><math><mi>Q</mi></math></span> is the non-metricity scalar and <span><math><mi>T</mi></math></span> is the trace of the energy-momentum tensor. Gravastars present a viable alternative to black holes, featuring a central de Sitter core, a surrounding thin shell and a dynamic layer in the Schwarzschild exterior that separates these two regions. Using the Finch-Skea metric, the necessary field equations for the core and shell are derived, while the Israel junction conditions maintain a seamless connection between the inner and outer regions. This work extensively explores crucial aspects such as energy distribution, proper length, energy conditions, entropy and the equation of state parameter. The model's stability is studied through the effective potential, redshift, causality conditions and adiabatic index. Our results highlight the essential role of modified gravity in maintaining the structural viability and stability of gravastars.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1011 ","pages":"Article 116791"},"PeriodicalIF":2.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"New renormalization group study of the 3-state Potts model and related statistical models","authors":"José Gaite","doi":"10.1016/j.nuclphysb.2025.116801","DOIUrl":"10.1016/j.nuclphysb.2025.116801","url":null,"abstract":"<div><div>The critical behavior of three-state statistical models invariant under the full symmetry group <span><math><msub><mrow><mi>S</mi></mrow><mrow><mn>3</mn></mrow></msub></math></span> and its dependence on space dimension have been a matter of interest and debate. In particular, the phase transition of the 3-state Potts model in three dimensions is believed to be of the first order, without a definitive proof of absence of scale invariance in three-dimensional field theory with <span><math><msub><mrow><mi>S</mi></mrow><mrow><mn>3</mn></mrow></msub></math></span> symmetry. This scale invariance should appear as a non-trivial fixed point of the renormalization group, which has not been found. Our new search, with the non-perturbative renormalization group, finds such a fixed point, as a bifurcation from the trivial fixed point at the critical space dimension <span><math><mi>d</mi><mo>=</mo><mn>10</mn><mo>/</mo><mn>3</mn></math></span>, which extends continuously to <span><math><mi>d</mi><mo>=</mo><mn>3</mn></math></span>. It does not correspond to a second-order phase transition of the 3-state Potts model, but is interesting in its own right. In particular, it shows how the <em>ε</em>-expansion can fail.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1011 ","pages":"Article 116801"},"PeriodicalIF":2.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Celestial string integrands & their expansions","authors":"Daniel Bockisch","doi":"10.1016/j.nuclphysb.2025.116792","DOIUrl":"10.1016/j.nuclphysb.2025.116792","url":null,"abstract":"<div><div>We transform the one-loop four-point type I open superstring gluon amplitude to correlation functions on the celestial sphere including both the (non-)orientable planar and non-planar sector. This requires a Mellin transform with respect to the energies of the scattered strings, as well as to integrate over the open-string worldsheet moduli space. After accomplishing the former we obtain celestial string integrands with remaining worldsheet integrals <span><math><mi>Ψ</mi><mrow><mo>(</mo><mi>β</mi><mo>)</mo></mrow></math></span>, where <em>β</em> is related to the conformal scaling dimensions of the conformal primary operators under consideration. Employing an alternative approach of performing an <span><math><msup><mrow><mi>α</mi></mrow><mrow><mo>′</mo></mrow></msup></math></span>-expansion of the open superstring amplitude first and Mellin transforming afterwards, we obtain a fully integrated expression, capturing the pole structure in the <em>β</em>-plane. The same analysis is performed at tree-level yielding similar results. We conclude by solving <span><math><mi>Ψ</mi><mrow><mo>(</mo><mi>β</mi><mo>)</mo></mrow></math></span> for specific values of <em>β</em>, consistently reproducing the results of the <span><math><msup><mrow><mi>α</mi></mrow><mrow><mo>′</mo></mrow></msup></math></span>-expansion ansatz. In all approaches we find that the dependence on <span><math><msup><mrow><mi>α</mi></mrow><mrow><mo>′</mo></mrow></msup></math></span> reduces to that of a simple overall factor of <span><math><msup><mrow><mo>(</mo><msup><mrow><mi>α</mi></mrow><mrow><mo>′</mo></mrow></msup><mo>)</mo></mrow><mrow><mi>β</mi><mo>−</mo><mn>3</mn></mrow></msup></math></span> at loop and <span><math><msup><mrow><mo>(</mo><msup><mrow><mi>α</mi></mrow><mrow><mo>′</mo></mrow></msup><mo>)</mo></mrow><mrow><mi>β</mi></mrow></msup></math></span> at tree level, consistent with previous literature.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1011 ","pages":"Article 116792"},"PeriodicalIF":2.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 new-old approach to composite scalars with chiral fermion constituents","authors":"Christopher T. Hill","doi":"10.1016/j.nuclphysb.2024.116788","DOIUrl":"10.1016/j.nuclphysb.2024.116788","url":null,"abstract":"<div><div>We develop a dynamical, Lorentz invariant theory of composite scalars in configuration space consisting of chiral fermions, interacting by the perturbative exchange of a massive “gluon” of coupling <span><math><msub><mrow><mi>g</mi></mrow><mrow><mn>0</mn></mrow></msub></math></span> and mass <span><math><msubsup><mrow><mi>M</mi></mrow><mrow><mn>0</mn></mrow><mrow><mn>2</mn></mrow></msubsup></math></span> (the coloron model). The formalism is inspired by, but goes beyond, old ideas of Yukawa and the Nambu-Jona-Lasinio (NJL) model. It yields a non-pointlike internal wave-function of the bound state, <span><math><mi>ϕ</mi><mo>(</mo><mi>r</mi><mo>)</mo></math></span>, which satisfies a Schrödinger-Klein-Gordon (SKG) equation with eigenvalue <span><math><msup><mrow><mi>μ</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span>. For super-critical coupling, <span><math><msubsup><mrow><mi>g</mi></mrow><mrow><mn>0</mn></mrow><mrow><mn>2</mn></mrow></msubsup><mo>&gt;</mo><msubsup><mrow><mi>g</mi></mrow><mrow><mn>0</mn><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msubsup></math></span>, we have <span><math><msup><mrow><mi>μ</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>&lt;</mo><mn>0</mn></math></span> leading to spontaneous symmetry breaking. The binding of chiral fermions is semiclassical, <em>not loop-level as in NJL</em>. The mass scale is determined by the interaction as in NJL. We mainly focus on the short-distance, large <span><math><msubsup><mrow><mi>M</mi></mrow><mrow><mn>0</mn></mrow><mrow><mn>2</mn></mrow></msubsup></math></span> limit, yielding an NJL pointlike interaction, but the bound state internal wave-function, <span><math><mi>ϕ</mi><mo>(</mo><mover><mrow><mi>r</mi></mrow><mrow><mo>→</mo></mrow></mover><mo>)</mo></math></span>, remains spatially extended and dilutes <span><math><mi>ϕ</mi><mo>(</mo><mn>0</mn><mo>)</mo></math></span>. This leads to power-law suppression of the induced Yukawa and quartic couplings and requires radically less fine-tuning of a hierarchy than does the NJL model. We include a discussion of loop corrections of the theory. A realistic top condensation model appears possible.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1011 ","pages":"Article 116788"},"PeriodicalIF":2.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}