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Entanglement of a chiral scalar on the torus 环面上手性标量的纠缠
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)152
Nicolás Abate, David Blanco, Alan Garbarz, Mateo Koifman, Guillem Pérez-Nadal
{"title":"Entanglement of a chiral scalar on the torus","authors":"Nicolás Abate,&nbsp;David Blanco,&nbsp;Alan Garbarz,&nbsp;Mateo Koifman,&nbsp;Guillem Pérez-Nadal","doi":"10.1007/JHEP05(2025)152","DOIUrl":"10.1007/JHEP05(2025)152","url":null,"abstract":"<p>We compute the entanglement entropy of an interval for a chiral scalar on a circle at an arbitrary temperature. We use the resolvent method, which involves expressing the entropy in terms of the resolvent of a certain operator, and we compute that resolvent by solving a problem that entails finding an analytic function on the complex torus with certain jump conditions at the interval. The resolvent is relevant by itself, since it can be used to compute any function of the reduced density matrix. We illustrate that by also computing all the Rényi entropies for the model.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)152.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073799","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
Failure of the large-N expansion in a bosonic tensor model 玻色子张量模型中大n展开的失败
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)141
Aidan Herderschee, Michael Winer
{"title":"Failure of the large-N expansion in a bosonic tensor model","authors":"Aidan Herderschee,&nbsp;Michael Winer","doi":"10.1007/JHEP05(2025)141","DOIUrl":"10.1007/JHEP05(2025)141","url":null,"abstract":"<p>We study the tensor model generalization of the quantum <i>p</i>-spherical model in the large-<i>N</i> limit. While the tensor model has the same large-<i>N</i> expansion as the disordered quantum <i>p</i>-spherical model, its ground state is superextensive, in contradiction with large-<i>N</i> perturbation theory. Therefore, the large-<i>N</i> expansion of this model catastrophically fails at arbitrarily large-<i>N</i>, without any obvious signal in perturbation theory.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)141.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074021","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
NNLOCAL: completely local subtractions for color-singlet production in hadron collisions NNLOCAL：强子碰撞中颜色单重态产生的完全局部减法
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)151
V. Del Duca, C. Duhr, L. Fekésházy, F. Guadagni, P. Mukherjee, G. Somogyi, F. Tramontano, S. Van Thurenhout
{"title":"NNLOCAL: completely local subtractions for color-singlet production in hadron collisions","authors":"V. Del Duca,&nbsp;C. Duhr,&nbsp;L. Fekésházy,&nbsp;F. Guadagni,&nbsp;P. Mukherjee,&nbsp;G. Somogyi,&nbsp;F. Tramontano,&nbsp;S. Van Thurenhout","doi":"10.1007/JHEP05(2025)151","DOIUrl":"10.1007/JHEP05(2025)151","url":null,"abstract":"<p>We present NNLOCAL, a proof-of-concept parton-level Monte Carlo program implementing the extension of the completely local subtraction scheme CoLoRFulNNLO to the case of color-singlet production in hadron collisions. We have built general local subtraction terms that regularize all single and double unresolved infrared singularities in real radiation phase space. The subtractions are then integrated fully analytically to the required order in the parameter of dimensional regularization. Combining the integrated counterterms with the virtual contributions we demonstrate the cancellation of all infrared poles explicitly. We validate our procedure by computing the fully differential cross section for the production of a Higgs boson at the LHC in an effective field theory with gluons only. Our code provides the first public implementation of a completely local analytic subtraction scheme at next-to-next-to-leading order accuracy.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)151.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073796","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
Multi-jet production in deep inelastic scattering with Pythia 深度非弹性散射中的多射流产生
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)153
Ilkka Helenius, Joni O. Laulainen, Christian T. Preuss
{"title":"Multi-jet production in deep inelastic scattering with Pythia","authors":"Ilkka Helenius,&nbsp;Joni O. Laulainen,&nbsp;Christian T. Preuss","doi":"10.1007/JHEP05(2025)153","DOIUrl":"10.1007/JHEP05(2025)153","url":null,"abstract":"<p>We introduce multi-jet merging for deep inelastic scattering in the V<span>incia</span> parton shower in the Monte Carlo event generator P<span>ythia</span> 8. Merging combines event samples of different parton multiplicities with logarithmically enhanced parton-shower radiation. We consider up to five outgoing partons using two different merging algorithms. We vary the relevant scale choices and compare to experimental data by the H1 collaboration at the HERA collider. Results show that multi-jet merging improves the description to data, especially for low virtuality events, and that jet cross-sections converge when the partonic multiplicity exceeds the number of reconstructed jets.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)153.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073798","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
Next-to-next-to-leading order threshold soft function for tW production tW生产的下到下到领先订单阈值软功能
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)143
Jia-Le Ding, Hai Tao Li, Jian Wang
{"title":"Next-to-next-to-leading order threshold soft function for tW production","authors":"Jia-Le Ding,&nbsp;Hai Tao Li,&nbsp;Jian Wang","doi":"10.1007/JHEP05(2025)143","DOIUrl":"10.1007/JHEP05(2025)143","url":null,"abstract":"<p>We compute the two-loop soft function for the associated production of a top quark and a <i>W</i> boson near the threshold, where the invariant mass of the <i>tW</i> system approaches the collider energy. We employ the reverse unitarity technique and integration-by-parts identities to reduce soft loop integrals to a minimal basis of master integrals. These master integrals are analytically evaluated using the method of differential equations, yielding results expressed in terms of multiple polylogarithms. Additionally, we analyze the asymptotic behavior of the soft function in the low and high energy limits. Our results provide a vital component for threshold resummation at the next-to-next-to-next-to-leading logarithmic level in this process.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)143.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074022","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
In-medium bottomonium properties from lattice NRQCD calculations with extended meson operators 扩展介子算符下晶格NRQCD计算的中底态性质
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)149
Heng-Tong Ding, Wei-Ping Huang, Rasmus Larsen, Stefan Meinel, Swagato Mukherjee, Peter Petreczky, Zhanduo Tang
{"title":"In-medium bottomonium properties from lattice NRQCD calculations with extended meson operators","authors":"Heng-Tong Ding,&nbsp;Wei-Ping Huang,&nbsp;Rasmus Larsen,&nbsp;Stefan Meinel,&nbsp;Swagato Mukherjee,&nbsp;Peter Petreczky,&nbsp;Zhanduo Tang","doi":"10.1007/JHEP05(2025)149","DOIUrl":"10.1007/JHEP05(2025)149","url":null,"abstract":"<p>We calculate the temperature dependence of bottomonium correlators in (2+1)-flavor lattice QCD with the aim to constrain in-medium properties of bottomonia at high temperature. The lattice calculations are performed using HISQ action with physical strange quark mass and light quark masses twenty times smaller than the strange quark mass at two lattice spacings <i>a</i> = 0<i>.</i>0493 fm and 0<i>.</i>0602 fm, and temporal extents <i>N</i><sub><i>τ</i></sub> = 16 − 30, corresponding to the temperatures <i>T</i> = 133 − 250 MeV. We use a tadpole-improved NRQCD action including spin-dependent <i>v</i><sup>6</sup> corrections for the heavy quarks and extended meson operators in order to be sensitive to in-medium properties of the bottomonium states of interest. We find that within estimated errors the bottomonium masses do not change compared to their vacuum values for all temperatures under our consideration; however, we find different nonzero widths for the various bottomonium states.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)149.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073892","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
Amplitude prescriptions in field theories with complex poles 复极场论中的振幅公式
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)145
Damiano Anselmi, Fabio Briscese, Gianluca Calcagni, Leonardo Modesto
{"title":"Amplitude prescriptions in field theories with complex poles","authors":"Damiano Anselmi,&nbsp;Fabio Briscese,&nbsp;Gianluca Calcagni,&nbsp;Leonardo Modesto","doi":"10.1007/JHEP05(2025)145","DOIUrl":"10.1007/JHEP05(2025)145","url":null,"abstract":"<p>In the context of field theories with complex poles, we scrutinize four inequivalent ways of defining the scattering amplitudes, each forfeiting one or more tenets of standard quantum field theory while preserving the others: (i) a textbook Wick rotation by analytic continuation of the external momenta from Euclidean to Lorentzian signature (no optical theorem), (ii) the Lee-Wick-Nakanishi prescription, integrating along a certain contour in the complex energy plane (no Lorentz invariance), (iiii) the fakeon prescription, where, in addition, spatial momenta are integrated on a complex path defined by the locus of singularities of the loop integrand (no analyticity of the amplitude) and (iv) to work directly on Minkowski spacetime, which violates the optical theorem and also bars power-counting renormalizability. In general, mixed Euclidean-Lorentzian prescriptions for internal and external momenta in loop integrals break Lorentz invariance, regardless of the type of masses involved. We conclude that, of the above four options, only the fakeon prescription is physically viable and can have applications to quantum gravity.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)145.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074012","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
Monte Carlo studies of quantum cosmology by the generalized Lefschetz thimble method 用广义Lefschetz顶针法进行量子宇宙学的蒙特卡罗研究
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)142
Chien-Yu Chou, Jun Nishimura
{"title":"Monte Carlo studies of quantum cosmology by the generalized Lefschetz thimble method","authors":"Chien-Yu Chou,&nbsp;Jun Nishimura","doi":"10.1007/JHEP05(2025)142","DOIUrl":"10.1007/JHEP05(2025)142","url":null,"abstract":"<p>Quantum cosmology aims at elucidating the beginning of our Universe. Back in early 80’s, Vilenkin and Hartle-Hawking put forward the “tunneling from nothing” and “no boundary” proposals. Recently there has been renewed interest in this subject from the viewpoint of defining the oscillating path integral for Lorentzian quantum gravity using the Picard-Lefschetz theory. Aiming at going beyond the mini-superspace and saddle-point approximations, we perform Monte Carlo calculations using the generalized Lefschetz thimble method to overcome the sign problem. In particular, we confirm that either the Vilenkin or the Hartle-Hawking saddle point becomes relevant if one uses the Robin boundary condition depending on its parameter. We also clarify some fundamental issues in quantum cosmology, such as an issue related to the integration domain of the lapse function.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)142.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074014","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
Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′ 带η′的粲介子非轻子二体衰变的解剖
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)148
Carolina Bolognani, Ulrich Nierste, Stefan Schacht, K. Keri Vos
{"title":"Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′","authors":"Carolina Bolognani,&nbsp;Ulrich Nierste,&nbsp;Stefan Schacht,&nbsp;K. Keri Vos","doi":"10.1007/JHEP05(2025)148","DOIUrl":"10.1007/JHEP05(2025)148","url":null,"abstract":"<p>We show that <i>D</i> → <i>Pη</i>′ decay amplitudes, where <i>P</i> = <i>K</i>, <i>π</i>, <i>η</i>, cannot be simply related to their <i>D</i> → <i>Pη</i> counterparts with a single <i>η</i><sub>0</sub>–<i>η</i><sub>8</sub> mixing angle. We propose a novel, consistent treatment of <i>η</i><sub>0</sub>–<i>η</i><sub>8</sub> mixing for application in <i>D</i> → <i>Pη</i> and <i>D</i> → <i>Pη</i>′ decays. Using this framework, we perform a global analysis of <i>D</i> → <i>Pη</i>′ decays employing SU(3)<sub><i>F</i></sub> symmetry including linear SU(3)<sub><i>F</i></sub> breaking. We find that the assumption of 30% SU(3)<sub><i>F</i></sub> breaking is in slight tension (2.5<i>σ</i>) with the data when compared to a fit that allows for 50% SU(3)<sub><i>F</i></sub> breaking, the latter giving a perfect description of the data. In order to allow for further scrutinization of SU(3)<sub><i>F</i></sub>-breaking effects in the future, we give branching ratio predictions for all <i>D</i> → <i>Pη</i>′ modes. Our predictions deviate from the current data in case of the branching ratios <span>( mathcal{B} )</span>(<span>( {D}_s^{+} )</span> → <i>K</i><sup>+</sup><i>η</i>′) and <span>( mathcal{B} )</span>(<i>D</i><sup>+</sup> → <i>K</i><sup>+</sup><i>η</i>′). Future more precise measurements of these channels are therefore highly important in order to clarify the quality of the SU(3)<sub><i>F</i></sub> expansion in nonleptonic <i>D</i> → <i>Pη</i>′ decays.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)148.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084855","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
Line defect correlators in fermionic CFTs 费米子cft中的线缺陷相关器
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2025-05-16 DOI: 10.1007/JHEP05(2025)146
Julien Barrat, Pedro Liendo, Philine van Vliet
{"title":"Line defect correlators in fermionic CFTs","authors":"Julien Barrat,&nbsp;Pedro Liendo,&nbsp;Philine van Vliet","doi":"10.1007/JHEP05(2025)146","DOIUrl":"10.1007/JHEP05(2025)146","url":null,"abstract":"<p>Scalar-fermion models, such as the Gross-Neveu-Yukawa model, admit natural 1<i>d</i> defects given by the exponential of a scalar field integrated along a straight line. In 4 − <i>ε</i> dimensions the defect coupling is weakly relevant and the setup defines a non-trivial interacting defect CFT. In this work we study correlation functions on these defect CFTs to order <i>ε</i>. We focus on 1<i>d</i> correlators constrained to the line, which include canonical operators like the displacement and the one-dimensional analog of the spin field. These results give access to perturbative CFT data that can be used as input in the numerical bootstrap. We also consider local operators outside the line, in particular two-point functions of scalars whose dynamics are non-trivial due to the presence of the defect.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP05(2025)146.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074013","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
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