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Non-supersymmetric heterotic strings and chiral CFTs 非超对称异质弦和手性 CFT
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-11-05 DOI: 10.1007/JHEP11(2024)002
Héctor Parra De Freitas
{"title":"Non-supersymmetric heterotic strings and chiral CFTs","authors":"Héctor Parra De Freitas","doi":"10.1007/JHEP11(2024)002","DOIUrl":"10.1007/JHEP11(2024)002","url":null,"abstract":"<p>Non-supersymmetric heterotic strings share various properties with their supersymmetric counterparts. Torus compactifications of the latter live in a component of the moduli space of string vacua with 16 supercharges, and various asymmetric orbifolds thereof realize vacua in other components, exhibiting qualitative differences such as rank reduction. We set out to study the analogous problem for non-supersymmetric heterotic strings, framing it in relation to chiral fermionic CFTs with central charge 24, which were classified recently. We find that for the case analogous to the so-called CHL string, which has gauge group rank reduced by 8, there are in total four non-supersymmetric versions. These include the well known <i>E</i><sub>8</sub> string and three other constructions a la CHL, which can be distinguished qualitatively by how tachyons appear in their classical moduli spaces. We also discuss the classification problem for lower rank theories and the relationship between MSDS models and Scherk-Schwarz reductions.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 11","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP11(2024)002.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587866","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
Large landscape of 4d superconformal field theories from small gauge theories 从小规理论看 4d 超共形场论的大景观
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-11-05 DOI: 10.1007/JHEP11(2024)010
Minseok Cho, Kazunobu Maruyoshi, Emily Nardoni, Jaewon Song
{"title":"Large landscape of 4d superconformal field theories from small gauge theories","authors":"Minseok Cho,&nbsp;Kazunobu Maruyoshi,&nbsp;Emily Nardoni,&nbsp;Jaewon Song","doi":"10.1007/JHEP11(2024)010","DOIUrl":"10.1007/JHEP11(2024)010","url":null,"abstract":"<p>We systematically explore the space of renormalization group flows of four-dimensional <span>( mathcal{N} )</span> = 1 superconformal field theories (SCFTs) triggered by relevant deformations, as well as by coupling to free chiral multiplets with relevant operators. In this way, we classify all possible fixed point SCFTs that can be obtained from certain rank 1 and 2 supersymmetric gauge theories with small amount of matter multiplets, identifying 7,346 inequivalent fixed points which pass a series of non-trivial consistency checks. This set of fixed points exhibits interesting statistical behaviors, including a narrow distribution of central charges (<i>a, c</i>), a correlation between the number of relevant operators and the ratio <i>a/c</i>, and trends in the lightest operator dimension versus <i>a/c</i>. The ratio <i>a/c</i> of this set is distributed between 0<i>.</i>7228 and 1<i>.</i>2100, where the upper bound is larger than that of previously known interacting SCFTs. Moreover, we find a plethora of highly non-perturbative phenomena, such as (super)symmetry enhancements, operator decoupling, non-commuting renormalization group flows, and dualities. We especially identify amongst these fixed points a new SCFT that has smaller central charges <span>( left(a,cright)=left(frac{633}{2000},frac{683}{2000}right) )</span> than that of the deformed minimal Argyres-Douglas theory, as well as novel Lagrangian duals for certain <span>( mathcal{N} )</span> = 1 deformed Argyres-Douglas theories. We provide a website https://qft.kaist.ac.kr/landscape to navigate through our set of fixed points.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 11","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP11(2024)010.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595280","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 electron self-energy to three loops in QED 关于电子自能到 QED 中的三个环路
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-11-05 DOI: 10.1007/JHEP11(2024)020
Claude Duhr, Federico Gasparotto, Christoph Nega, Lorenzo Tancredi, Stefan Weinzierl
{"title":"On the electron self-energy to three loops in QED","authors":"Claude Duhr,&nbsp;Federico Gasparotto,&nbsp;Christoph Nega,&nbsp;Lorenzo Tancredi,&nbsp;Stefan Weinzierl","doi":"10.1007/JHEP11(2024)020","DOIUrl":"10.1007/JHEP11(2024)020","url":null,"abstract":"<p>We compute the electron self-energy in Quantum Electrodynamics to three loops in terms of iterated integrals over kernels of elliptic type. We make use of the differential equations method, augmented by an <i>ϵ</i>-factorized basis, which allows us to gain full control over the differential forms appearing in the iterated integrals to all orders in the dimensional regulator. We obtain compact analytic expressions, for which we provide generalized series expansion representations that allow us to evaluate the result numerically for all values of the electron momentum squared. As a by-product, we also obtain <i>ϵ</i>-resummed results for the self-energy in the on-shell limit <i>p</i><sup>2</sup> = <i>m</i><sup>2</sup>, which we use to recompute the known three-loop renormalization constants in the on-shell scheme.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 11","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP11(2024)020.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587868","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
Localisation without supersymmetry: towards exact results from Dirac structures in 3D N = 0 gauge theory 没有超对称的局部化：从三维 N = 0 轨则理论中的狄拉克结构得出精确结果
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-11-05 DOI: 10.1007/JHEP11(2024)001
Alex S. Arvanitakis, Dimitri Kanakaris
{"title":"Localisation without supersymmetry: towards exact results from Dirac structures in 3D N = 0 gauge theory","authors":"Alex S. Arvanitakis,&nbsp;Dimitri Kanakaris","doi":"10.1007/JHEP11(2024)001","DOIUrl":"10.1007/JHEP11(2024)001","url":null,"abstract":"<p>We show, by introducing purely auxiliary gluinos and scalars, that the quantum path integral for a class of 3D interacting non-supersymmetric gauge theories localises. The theories in this class all admit a ‘Manin gauge theory’ formulation, that we introduce; it is obtained by enhancing the gauge algebra of the theory to a Dirac structure inside a Manin pair. This machinery allows us to do localisation computations for every theory in this class at once, including for 3D Yang-Mills theory, and for its Third Way deformation; the latter calculation casts the Third Way path integral into an almost 1-loop exact form.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 11","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP11(2024)001.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587867","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
Baby universe operators in the ETH matrix model of double-scaled SYK 双尺度 SYK ETH 矩阵模型中的婴儿宇宙算子
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-10-31 DOI: 10.1007/JHEP10(2024)249
Kazumi Okuyama
{"title":"Baby universe operators in the ETH matrix model of double-scaled SYK","authors":"Kazumi Okuyama","doi":"10.1007/JHEP10(2024)249","DOIUrl":"10.1007/JHEP10(2024)249","url":null,"abstract":"<p>We consider the baby universe operator <span>( {mathcal{B}}_a )</span> in the double-scaled SYK (DSSYK) model, which creates a baby universe of size <i>a</i>. We find that <span>( {mathcal{B}}_a )</span> is written in terms of the transfer matrix <i>T</i>, and vice versa. In particular, the identity operator on the chord Hilbert space is expanded as a linear combination of <span>( {mathcal{B}}_a )</span>, which implies that the disk partition function of DSSYK is written as a linear combination of trumpets. We also find that the thermofield double state of DSSYK is generated by a pair of baby universe operators, which corresponds to a double trumpet. This can be thought of as a concrete realization of the idea of ER=EPR.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 10","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2024)249.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565780","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
Conformal bootstrap equations from the embedding space operator product expansion 来自嵌入空间算子乘积展开的共形引导方程
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-10-31 DOI: 10.1007/JHEP10(2024)245
Jean-François Fortin, Wen-Jie Ma, Valentina Prilepina, Witold Skiba
{"title":"Conformal bootstrap equations from the embedding space operator product expansion","authors":"Jean-François Fortin,&nbsp;Wen-Jie Ma,&nbsp;Valentina Prilepina,&nbsp;Witold Skiba","doi":"10.1007/JHEP10(2024)245","DOIUrl":"10.1007/JHEP10(2024)245","url":null,"abstract":"<p>We describe how to implement the conformal bootstrap program in the context of the embedding space OPE formalism introduced in previous work. To take maximal advantage of the known properties of the scalar conformal blocks for symmetric-traceless exchange, we construct tensorial generalizations of the three-point and four-point scalar conformal blocks that have many nice properties. Further, we present a special basis of tensor structures for three-point correlation functions endowed with the remarkable simplifying property that it does not mix under permutations of the external quasi-primary operators. We find that in this approach, we can write the <i>M</i>-point conformal bootstrap equations explicitly in terms of the standard position space cross-ratios without the need to project back to position space, thus effectively deriving all conformal bootstrap equations directly from the embedding space. Finally, we lay out an algorithm for generating the conformal bootstrap equations in this formalism. Collectively, the tensorial generalizations, the new basis of tensor structures, as well as the procedure for deriving the conformal bootstrap equations lead to four-point bootstrap equations for quasi-primary operators in arbitrary Lorentz representations expressed as linear combinations of the standard scalar conformal blocks for spin-<i>ℓ</i> exchange, with finite <i>ℓ</i>-independent terms. Moreover, the OPE coefficients in these equations conveniently feature trivial symmetry properties. The only inputs necessary are the relevant projection operators and tensor structures, which are all fixed by group theory. To illustrate the procedure, we present one nontrivial example involving scalars <i>S</i> and vectors <i>V</i>, namely ⟨<i>SSSV</i>⟩.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 10","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2024)245.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579353","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
Improved precision on 2–3 oscillation parameters using the synergy between DUNE and T2HK 利用 DUNE 和 T2HK 的协同作用，提高 2-3 个振荡参数的精度
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-10-31 DOI: 10.1007/JHEP10(2024)243
Sanjib Kumar Agarwalla, Ritam Kundu, Masoom Singh
{"title":"Improved precision on 2–3 oscillation parameters using the synergy between DUNE and T2HK","authors":"Sanjib Kumar Agarwalla,&nbsp;Ritam Kundu,&nbsp;Masoom Singh","doi":"10.1007/JHEP10(2024)243","DOIUrl":"10.1007/JHEP10(2024)243","url":null,"abstract":"<p>A high-precision measurement of <span>( Delta {m}_{31}^2 )</span> and <i>θ</i><sub>23</sub> is inevitable to estimate the Earth’s matter effect in long-baseline experiments which in turn plays an important role in addressing the issue of neutrino mass ordering and to measure the value of CP phase in 3<i>ν</i> framework. After reviewing the results from the past and present experiments, and discussing the near-future sensitivities from the IceCube Upgrade and KM3NeT/ORCA, we study the expected improvements in the precision of 2–3 oscillation parameters that the next-generation long-baseline experiments, DUNE and T2HK, can bring either in isolation or combination. We highlight the relevance of the possible complementarities between these two experiments in obtaining the improved sensitivities in determining the deviation from maximal mixing of <i>θ</i><sub>23</sub>, excluding the wrong-octant solution of <i>θ</i><sub>23</sub>, and obtaining high precision on 2–3 oscillation parameters, as compared to their individual performances. We observe that for the current best-fit values of the oscillation parameters and assuming normal mass ordering (NMO), DUNE + T2HK can establish the non-maximal <i>θ</i><sub>23</sub> and exclude the wrong octant solution of <i>θ</i><sub>23</sub> at around 7<i>σ</i> C.L. with their nominal exposures. We find that DUNE + T2HK can improve the current relative 1<i>σ</i> precision on sin<sup>2</sup> <i>θ</i><sub>23</sub> <span>( left(Delta {m}_{31}^2right) )</span> by a factor of 7 (5) assuming NMO. Also, we notice that with less than half of their nominal exposures, the combination of DUNE and T2HK can achieve the sensitivities that are expected from these individual experiments using their full exposures. We also portray how the synergy between DUNE and T2HK can provide better constraints on (sin<sup>2</sup> <i>θ</i><sub>23</sub>–<i>δ</i><sub>CP</sub>) plane as compared to their individual reach.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 10","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2024)243.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579356","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
Four-point correlators in ( mathcal{N} ) = 4 SYM from AdS5 bubbling geometries 来自 AdS5 气泡几何的 ( mathcal{N} ) = 4 SYM 中的四点相关器
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-10-31 DOI: 10.1007/JHEP10(2024)244
David Turton, Alexander Tyukov
{"title":"Four-point correlators in ( mathcal{N} ) = 4 SYM from AdS5 bubbling geometries","authors":"David Turton,&nbsp;Alexander Tyukov","doi":"10.1007/JHEP10(2024)244","DOIUrl":"10.1007/JHEP10(2024)244","url":null,"abstract":"<p>Four-point correlation functions are observables of significant interest in holographic field theories. We compute an infinite family of four-point correlation functions of operators in short multiplets of 4D <span>( mathcal{N} )</span> = 4 super Yang-Mills theory in the supergravity regime, by studying the quadratic fluctuations around non-trivial supergravity backgrounds. The supergravity backgrounds are supersymmetric smooth geometries in the family derived by Lin, Lunin and Maldacena. The light probes comprise an infinite sequence of Kaluza-Klein harmonics of the dilaton/axion. For generic parameter values, the supergravity backgrounds are dual to heavy CFT states. However we focus on the limit in which the dual CFT states become light single-particle states. The resulting all-light four-point correlators are related by superconformal Ward identities to previously known four-point correlators of half-BPS chiral primary operators. By verifying that the Ward identities are satisfied, we confirm the validity of the supergravity method.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 10","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2024)244.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579358","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
Effects of final state interactions on Landau singularities 终态相互作用对朗道奇异性的影响
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-10-31 DOI: 10.1007/JHEP10(2024)246
A. S. Sakthivasan, M. Mai, A. Rusetsky, M. Döring
{"title":"Effects of final state interactions on Landau singularities","authors":"A. S. Sakthivasan,&nbsp;M. Mai,&nbsp;A. Rusetsky,&nbsp;M. Döring","doi":"10.1007/JHEP10(2024)246","DOIUrl":"10.1007/JHEP10(2024)246","url":null,"abstract":"<p>In certain kinematic and particle mass configurations, triangle singularities may lead to line-shapes which mimic the effects of resonances. This well-known effect is scrutinized here in the presence of final-state rescattering. The goal is achieved first by utilizing general arguments provided by Landau equations, and second by applying a modern scattering formalism with explicit two- and three-body unitarity.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 10","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2024)246.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579354","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
Three loop QCD corrections to the heavy-light form factors: fermionic contributions 重轻形式因子的三环QCD修正：费米子贡献
IF 5.4 1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2024-10-31 DOI: 10.1007/JHEP10(2024)254
Sudeepan Datta, Narayan Rana
{"title":"Three loop QCD corrections to the heavy-light form factors: fermionic contributions","authors":"Sudeepan Datta,&nbsp;Narayan Rana","doi":"10.1007/JHEP10(2024)254","DOIUrl":"10.1007/JHEP10(2024)254","url":null,"abstract":"<p>We present analytic results for three-loop fermionic corrections to the heavy-light form factors in perturbative quantum chromodynamics. Specifically, we present all light quark contributions and contributions from two heavy quark loops. We use the method of differential equations to compute all relevant three-loop master integrals. The results for all these contributions are expressed in terms of harmonic polylogarithms and generalized harmonic polylogarithms.</p>","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 10","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2024)254.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587738","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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