Physical Review D最新文献

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Two types of domain walls in N=1 super-QCD: How they are classified and counted N=1超级qcd中两种类型的域壁:如何分类和计数
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-06 DOI: 10.1103/physrevd.111.114005
Shi Chen, Evgenii Ievlev, Mikhail Shifman
{"title":"Two types of domain walls in N=1 super-QCD: How they are classified and counted","authors":"Shi Chen, Evgenii Ievlev, Mikhail Shifman","doi":"10.1103/physrevd.111.114005","DOIUrl":"https://doi.org/10.1103/physrevd.111.114005","url":null,"abstract":"We study multiplicities and junctions of Bogomol’nyi-Prasad-Sommerfield domain walls interpolating between different chiral vacua in N</a:mi>=</a:mo>1</a:mn></a:math> supersymmetric QCD (SQCD) with the <d:math xmlns:d=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><d:mrow><d:mi>SU</d:mi><d:mo stretchy=\"false\">(</d:mo><d:mi>N</d:mi><d:mo stretchy=\"false\">)</d:mo></d:mrow></d:math> gauge group and a varying number of fundamental quarks. Depending on the number of flavors <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><h:mi>F</h:mi></h:math>, two distinct classes of domain walls emerge: (i) locally distinguishable, i.e., those which differ from each other locally, in local experiments; and (ii) those which have identical local structure and are differentiated only topologically, through judiciously chosen compactifications. In the first class, two-wall junctions exist, while in the second class, such junctions do not exist. Acharya and Vafa counted walls in pure super-Yang-Mills. Ritz, Shifman, and Vainshtein counted the walls in <j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><j:mi>F</j:mi><j:mo>=</j:mo><j:mi>N</j:mi></j:math> SQCD. In both cases, the multiplicity of <l:math xmlns:l=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><l:mi>k</l:mi></l:math> walls was the same, <n:math xmlns:n=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><n:msubsup><n:mi>ν</n:mi><n:mrow><n:mi>N</n:mi><n:mo>,</n:mo><n:mi>k</n:mi></n:mrow><n:mtext>walls</n:mtext></n:msubsup><n:mo>=</n:mo><n:mi>N</n:mi><n:mo>!</n:mo><n:mo>/</n:mo><n:mo stretchy=\"false\">[</n:mo><n:mo stretchy=\"false\">(</n:mo><n:mi>N</n:mi><n:mo>−</n:mo><n:mi>k</n:mi><n:mo stretchy=\"false\">)</n:mo><n:mo>!</n:mo><n:mi>k</n:mi><n:mo>!</n:mo><n:mo stretchy=\"false\">]</n:mo></n:math>. We study the general case <t:math xmlns:t=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><t:mn>0</t:mn><t:mo>≤</t:mo><t:mi>F</t:mi><t:mo>≤</t:mo><t:mi>N</t:mi></t:math>, with mixed sets of walls from both classes (i) and (ii) simultaneously, and demonstrate that the above overall multiplicity remains intact. We argue that the growth of the quark masses exhibits no phase transition at any finite mass. The locally distinguishable walls can turn into topologically distinguishable ones only at <v:math xmlns:v=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><v:mi>m</v:mi><v:mo>=</v:mo><v:mi>∞</v:mi></v:math>. The evolution of the low-energy wall world sheet theory in the passage from small to large <x:math xmlns:x=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><x:mi>m</x:mi></x:math> is briefly discussed. We also propose a candidate for the low-energy description of wall junctions. The tools used are localization of instantons, supersymmetry enhancement on the walls, and circle compactification. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:c","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"5 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
AdS Carroll structures from Poincaré isomorphism: Asymptotic symmetry analysis 来自poincar<e:1>同构的AdS Carroll结构:渐近对称分析
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-06 DOI: 10.1103/physrevd.111.124007
Luis Avilés, Joaquim Gomis, Diego Hidalgo, Omar Valdivia
{"title":"AdS Carroll structures from Poincaré isomorphism: Asymptotic symmetry analysis","authors":"Luis Avilés, Joaquim Gomis, Diego Hidalgo, Omar Valdivia","doi":"10.1103/physrevd.111.124007","DOIUrl":"https://doi.org/10.1103/physrevd.111.124007","url":null,"abstract":"Starting from the isomorphism between the anti–de Sitter (AdS) Carroll and Poincaré algebras, we obtain the magnetic AdS Carroll gravity in three dimensions. Moreover, we derive the first set of asymptotic conditions for the AdS Carroll structure, and we prove that the asymptotic symmetry algebra is given by the bms</a:mi>3</a:mn></a:msub></a:math> algebra. By mapping the three-dimensional asymptotically flat solutions of Poincaré gravity into an AdS Carroll spacetime, we demonstrate that the resulting solutions satisfy the field equations of the Chern-Simons formulation of AdS Carroll gravity, and we note that this solution possesses an infinite set of Killing vectors. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"16 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Dirac fermions under imaginary rotation 虚旋转下的狄拉克费米子
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-06 DOI: 10.1103/physrevd.111.116004
Tudor Pătuleanu, Amalia Dariana Fodor, Victor E. Ambruş, Cosmin Crucean
{"title":"Dirac fermions under imaginary rotation","authors":"Tudor Pătuleanu, Amalia Dariana Fodor, Victor E. Ambruş, Cosmin Crucean","doi":"10.1103/physrevd.111.116004","DOIUrl":"https://doi.org/10.1103/physrevd.111.116004","url":null,"abstract":"In the present study, we investigate the properties of an ensemble of free Dirac fermions, at finite inverse temperature β</a:mi></a:math> and finite chemical potential <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>μ</c:mi></c:math>, undergoing rigid rotation with an imaginary angular velocity <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mrow><e:mi mathvariant=\"normal\">Ω</e:mi><e:mo>=</e:mo><e:mi>i</e:mi><e:msub><e:mrow><e:mi mathvariant=\"normal\">Ω</e:mi></e:mrow><e:mrow><e:mi>I</e:mi></e:mrow></e:msub></e:mrow></e:math>. Our purpose is to establish the analytical structure of such states, as well as the prospects (and dangers) of extrapolating results obtained under imaginary rotation to the case of real rotation. We show that in the thermodynamic limit, the state of the system is akin to a stationary system with modified inverse temperature <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:msub><i:mi>β</i:mi><i:mi>q</i:mi></i:msub><i:mo>=</i:mo><i:mi>q</i:mi><i:mi>β</i:mi></i:math> and the same chemical potential, where <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>q</k:mi></k:math> is the denominator of the irreducible fraction <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>ν</m:mi><m:mo>=</m:mo><m:mi>β</m:mi><m:msub><m:mi mathvariant=\"normal\">Ω</m:mi><m:mi>I</m:mi></m:msub><m:mo>/</m:mo><m:mn>2</m:mn><m:mi>π</m:mi><m:mo>=</m:mo><m:mi>p</m:mi><m:mo>/</m:mo><m:mi>q</m:mi></m:math>. The temperature of the system becomes a fractal function of the rotation parameter, as in the case of the scalar field. The chemical potential breaks the fractalization of fermions. We also compute the thermodynamic potential <p:math xmlns:p=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><p:mi mathvariant=\"normal\">Φ</p:mi></p:math> and associated thermodynamic functions, showing that they also exhibit fractal behavior. Finally, we evaluate the axial and helical fluxes through the transverse plane, generated through the vortical effects, and show that they diverge in the thermodynamic limit, in the case when <s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><s:mi>ν</s:mi><s:mo>=</s:mo><s:mn>1</s:mn><s:mo>/</s:mo><s:mi>q</s:mi></s:math> and <u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><u:mi>q</u:mi><u:mo stretchy=\"false\">→</u:mo><u:mi>∞</u:mi></u:math>. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"46 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Higgs near-criticality at future colliders 希格斯粒子在未来对撞机中的接近临界状态
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-04 DOI: 10.1103/physrevd.111.115002
V. Enguita, B. Gavela, T. Steingasser
{"title":"Higgs near-criticality at future colliders","authors":"V. Enguita, B. Gavela, T. Steingasser","doi":"10.1103/physrevd.111.115002","DOIUrl":"https://doi.org/10.1103/physrevd.111.115002","url":null,"abstract":"The so-called metastability bound on the Higgs mass suggests that the smallness of the Higgs mass may be a by-product of the metastability of the electroweak vacuum. A significantly strong bound requires new physics capable of lowering the scale where the Higgs quartic coupling turns negative through renormalization group effects, without destabilizing the electroweak vacuum entirely. We analyze in this context the low-scale Majoron model of neutrino masses, which automatically contains two key elements for a viable scenario: heavy fermions to lower the instability scale and a extended scalar sector to stabilize the potential and achieve realistic lifetimes for the electroweak vacuum. We show how the metastability bound can be generalized to theories with multiple scalars and present an efficient way of calculating the tunneling rate in such potentials. We also demonstrate that FCC will probe regions of the parameter space relevant for metastability: large regions of the fermionic sector at FCC-ee and some reach to the scalar sector at FCC-hh. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"85 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Wavelet-harmonic integration methods 小波谐波积分方法
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-04 DOI: 10.1103/physrevd.111.123006
Benjamin Lillard
{"title":"Wavelet-harmonic integration methods","authors":"Benjamin Lillard","doi":"10.1103/physrevd.111.123006","DOIUrl":"https://doi.org/10.1103/physrevd.111.123006","url":null,"abstract":"A new integration method drastically improves the efficiency of the dark matter direct detection calculation. In this work I introduce a complete, orthogonal basis of spherical wavelet-harmonic functions, designed for the new vector space integration method. This factorizes the numeric calculation into a “vector” that depends only on the astrophysical velocity distribution; a second vector, depending only on the detector form factor; and a scattering matrix defined on the basis functions, which depends on the details of the dark matter (DM) particle model (e.g. its mass). For common spin-independent DM–Standard Model interactions, this scattering matrix can be evaluated analytically in the wavelet-harmonic basis. This factorization is particularly helpful for the more complicated analyses that have become necessary in recent years, especially those involving anisotropic detector materials or more realistic models of the local DM velocity distribution. With the new method, analyses studying large numbers of detector orientations and DM particle models can be performed more than 10 million times faster. This paper derives several analytic results for the spherical wavelets, including an extrapolation in the space of wavelet coefficients, and a generalization of the vector space method to a much broader class of linear functional integrals. Both results are highly relevant outside the field of DM direct detection. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"5 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Classical worldlines from scattering amplitudes 从散射振幅得到经典世界线
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-03 DOI: 10.1103/physrevd.111.125002
Zeno Capatti, Mao Zeng
{"title":"Classical worldlines from scattering amplitudes","authors":"Zeno Capatti, Mao Zeng","doi":"10.1103/physrevd.111.125002","DOIUrl":"https://doi.org/10.1103/physrevd.111.125002","url":null,"abstract":"We present a systematic diagrammatic investigation of the classical limit of observables computed from scattering amplitudes in quantum field theory through the Kosower-Maybee-O’Connell formalism, motivated by the study of gravitational waves from black hole binaries. We achieve the manifest cancellation of divergences in the ℏ</a:mi>→</a:mo>0</a:mn></a:math> limit at the integrand level beyond one loop by employing the Schwinger parametrization to rewrite both cut and uncut propagators in a worldlinelike representation before they are combined. The resulting finite classical integrand takes the same form as the counterpart in the worldline formalisms such as post-Minkowskian effective field theory and worldline quantum field theory, and in fact exactly coincides with the latter in various examples, showing explicitly the equivalence between scattering amplitude and worldline formalisms. The classical causality flow, as expressed by the retarded propagator prescription, appears as an emergent feature. Examples are presented for impulse observables in electrodynamics and a scalar model at two loops, as well as certain subclasses of diagrams to higher orders and all orders. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"168 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144210991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Superconnections in AdS/QCD and the hadronic light-by-light contribution to the muon g−2 AdS/QCD中的超连接和强子光对μ子g−2的贡献
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-03 DOI: 10.1103/physrevd.111.114001
Josef Leutgeb, Jonas Mager, Anton Rebhan
{"title":"Superconnections in AdS/QCD and the hadronic light-by-light contribution to the muon g−2","authors":"Josef Leutgeb, Jonas Mager, Anton Rebhan","doi":"10.1103/physrevd.111.114001","DOIUrl":"https://doi.org/10.1103/physrevd.111.114001","url":null,"abstract":"In this paper, we consider hard-wall anti–de Sitter/quantum chromodynamics (AdS/QCD) models extended by a string-theory inspired Chern-Simons action in terms of a superconnection involving a bifundamental scalar field which corresponds to the open-string tachyon of brane-antibrane configurations and which is naturally identified with the holographic dual of the quark condensate in chiral symmetry breaking. This realizes both the axial and chiral anomalies of QCD with a Witten-Veneziano mechanism for the η</a:mi>′</a:mo></a:msup></a:math> mass in addition to current quark masses, but somewhat differently than in the Katz-Schwartz AdS/QCD model used previously by us to evaluate pseudoscalar and axial vector transition form factors and their contribution to the hadronic light-by-light (HLBL) piece of the muon <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>g</c:mi><c:mo>−</c:mo><c:mn>2</c:mn></c:math>. Compared to the Katz-Schwartz model, we obtain a significantly more realistic description of axial-vector mesons with regard to <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msub><e:mi>f</e:mi><e:mn>1</e:mn></e:msub><e:mo>−</e:mo><e:msubsup><e:mi>f</e:mi><e:mn>1</e:mn><e:mo>′</e:mo></e:msubsup></e:math> mixing and equivalent photon rates. Moreover, predictions of the <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:msub><g:mi>f</g:mi><g:mn>1</g:mn></g:msub><g:mo stretchy=\"false\">→</g:mo><g:msup><g:mi>e</g:mi><g:mo>+</g:mo></g:msup><g:msup><g:mi>e</g:mi><g:mo>−</g:mo></g:msup></g:math> branching ratios are found to be in line with a recent phenomenological study. However, pseudoscalar transition form factors compare less well with experiment; in particular the <j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><j:msup><j:mi>π</j:mi><j:mn>0</j:mn></j:msup></j:math> transition form factor turns out to be overestimated at moderate nonzero virtuality. For the combined HLBL contribution to the muon <l:math xmlns:l=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><l:mi>g</l:mi><l:mo>−</l:mo><l:mn>2</l:mn></l:math> from the towers of axial vector mesons and excited pseudoscalars we obtain, however, a result very close to that of the Katz-Schwartz model. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"15 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144210777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Universal critical dynamics near the chiral phase transition and the QCD critical point 手性相变和QCD临界点附近的通用临界动力学
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-03 DOI: 10.1103/physrevd.111.l111901
Johannes V. Roth, Yunxin Ye, Sören Schlichting, Lorenz von Smekal
{"title":"Universal critical dynamics near the chiral phase transition and the QCD critical point","authors":"Johannes V. Roth, Yunxin Ye, Sören Schlichting, Lorenz von Smekal","doi":"10.1103/physrevd.111.l111901","DOIUrl":"https://doi.org/10.1103/physrevd.111.l111901","url":null,"abstract":"We use a novel real-time formulation of the functional renormalization group (FRG) for dynamical systems with reversible mode couplings to study model H, the conjectured dynamic universality class of the quantum chromodynamics (QCD) critical point. We emphasize the structural similarities with model G, conjectured to be the dynamic universality class of the chiral phase transition in the limit of two massless quark flavors. Importantly, our formulation of the real-time FRG preserves all relevant symmetries throughout the FRG flow which, e.g., guarantees the nonrenormalization of the reversible mode couplings, as but one exact result. We derive nonperturbative RG flow equations for the kinetic coefficients of both, model G and H, in parallel, and discuss commonalities and differences in the resulting fixed-point structure and dynamic critical exponents, such as weak-scaling relations which hold in either case versus the characteristic strong scaling of model G which is absent in model H. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"30 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144210990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
High-energy neutrinos flavor composition as a probe of neutrino magnetic moments 高能中微子风味成分作为中微子磁矩的探针
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-06-02 DOI: 10.1103/physrevd.111.123001
Artem Popov, Alexander Studenikin
{"title":"High-energy neutrinos flavor composition as a probe of neutrino magnetic moments","authors":"Artem Popov, Alexander Studenikin","doi":"10.1103/physrevd.111.123001","DOIUrl":"https://doi.org/10.1103/physrevd.111.123001","url":null,"abstract":"Neutrino propagation in the Galactic and extragalactic magnetic fields is considered. We extend an approach developed in [A. Popov and A. Studenikin, Neutrino eigenstates and flavour, spin and spin-flavour oscillations in a constant magnetic field, .] to describe neutrino flavor and spin oscillations using wave packets. The evolution equations for the neutrino wave packets in a uniform and nonuniform magnetic fields are derived. The analytical expressions for neutrino flavor and spin oscillations probabilities accounting for damping due to the wave packet separation are obtained for the case of a uniform magnetic field. It is shown that terms in the flavor oscillations probabilities that depend on the magnetic field strength are characterized by two coherence lengths. One of the coherence lengths coincides with the coherence length for neutrino oscillations in vacuum, while the second one is proportional to the cube of the average neutrino momentum p</a:mi>0</a:mn>3</a:mn></a:msubsup></a:math>. The probabilities of flavor and spin oscillations are calculated numerically for neutrino interacting with the nonuniform Galactic magnetic field. It is shown that oscillations on certain frequencies are suppressed on the Galactic scale due to the neutrino wave packets separation. The flavor compositions of high-energy neutrino flux coming from the Galactic center and ultra-high energy neutrinos from an extragalactic source are calculated accounting for neutrino interaction with the magnetic field and decoherence due to the wave packet separation. It is shown that for neutrino magnetic moments <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mo>∼</c:mo><c:msup><c:mn>10</c:mn><c:mrow><c:mo>−</c:mo><c:mn>13</c:mn></c:mrow></c:msup><c:msub><c:mi>μ</c:mi><c:mi>B</c:mi></c:msub></c:math> and larger these flavor compositions significantly differ from ones predicted by the vacuum neutrino oscillations scenario. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"43 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Neutrino-nucleus cross section impacts on neutrino oscillation measurements 中微子核截面对中微子振荡测量的影响
IF 5 2区 物理与天体物理
Physical Review D Pub Date : 2025-05-30 DOI: 10.1103/physrevd.111.093010
Nina M. Coyle, Shirley Weishi Li, Pedro A. N. Machado
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