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Indirect methods with transfer reactions: The Trojan Horse method and the Asymptotic Normalization Coefficient
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2025-02-24 DOI: 10.1016/j.ppnp.2025.104164
A. Tumino , C.A. Bertulani , S. Cherubini , G.F. D’Agata , A. Di Pietro , P. Figuera , G.L. Guardo , M. Gulino , S. Hayakawa , M. La Cognata , M. La Commara , L. Lamia , D. Lattuada , M. Mazzocco , A.M. Moro , J. Mraźek , A.A. Oliva , S. Palmerini , R.G. Pizzone , G.G. Rapisarda , H. Yamaguchi
{"title":"Indirect methods with transfer reactions: The Trojan Horse method and the Asymptotic Normalization Coefficient","authors":"A. Tumino ,&nbsp;C.A. Bertulani ,&nbsp;S. Cherubini ,&nbsp;G.F. D’Agata ,&nbsp;A. Di Pietro ,&nbsp;P. Figuera ,&nbsp;G.L. Guardo ,&nbsp;M. Gulino ,&nbsp;S. Hayakawa ,&nbsp;M. La Cognata ,&nbsp;M. La Commara ,&nbsp;L. Lamia ,&nbsp;D. Lattuada ,&nbsp;M. Mazzocco ,&nbsp;A.M. Moro ,&nbsp;J. Mraźek ,&nbsp;A.A. Oliva ,&nbsp;S. Palmerini ,&nbsp;R.G. Pizzone ,&nbsp;G.G. Rapisarda ,&nbsp;H. Yamaguchi","doi":"10.1016/j.ppnp.2025.104164","DOIUrl":"10.1016/j.ppnp.2025.104164","url":null,"abstract":"<div><div>We review the status and perspectives of indirect methods that make use of transfer reactions. We focus on two of them that have been extensively used in the past decades to determine cross sections of reactions of astrophysical relevance: the Trojan Horse method and the Asymptotic Normalization Coefficients method. We provide a comprehensive description of the theory behind each of these techniques, followed by an overview of a selection of experiments carried out using these indirect tools.</div></div>","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"143 ","pages":"Article 104164"},"PeriodicalIF":14.5,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549466","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
Neutron sources for large scale user facilities: The potential of high current accelerator-driven neutron sources
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2025-02-11 DOI: 10.1016/j.ppnp.2025.104163
P. Zakalek, T. Gutberlet, Th. Brückel
{"title":"Neutron sources for large scale user facilities: The potential of high current accelerator-driven neutron sources","authors":"P. Zakalek,&nbsp;T. Gutberlet,&nbsp;Th. Brückel","doi":"10.1016/j.ppnp.2025.104163","DOIUrl":"10.1016/j.ppnp.2025.104163","url":null,"abstract":"<div><div>A review of neutron sources for large scale user facilities is provided, aimed at users of neutron sources who need to understand the characteristics and peculiarities of the different types of neutron sources in order to select the most suitable source for their needs and to optimize their experimental setups for their specific scientific requirements. To this end, we provide an overview of (i) the main nuclear processes used at user facilities to release neutrons from nuclei, namely fission, spallation, and low-energy nuclear reactions, (ii) the various possibilities to tailor the time structure and spectrum of free neutrons, from pulsing to moderation, (iii) the mechanisms to extract and transport neutron beams with desired properties in terms of flux, brilliance/brightness, spectrum, pulse shape, etc., (iii) the applications and related experimental requirements in major scientific fields, with emphasis on those with a larger user community, (iv) the technology and realization of research reactors and neutron spallation sources, and (v) the progress made in Compact Accelerator-driven Neutron Sources (CANS), but especially in High Current Accelerator-driven Neutron Sources (HiCANS).</div><div>HiCANS are the focus of the current review, as this entirely new type of facility could in the future play the role in the neutron ecosystem that national reactor-based sources have played in the past. As such, HiCANS do not aim for the highest neutron brightness, but rather for parameters such as resilience, reliability, flexibility, ease of access, minimization of radioactive waste, excellent signal-to-noise ratio and optimization of the price/performance ratio. These are key features needed to further expand the community of neutron users from science and industry to whom this review is addressed.</div></div>","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"142 ","pages":"Article 104163"},"PeriodicalIF":14.5,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Corrigendum to “γ-γ fast timing with high-performance LaBr3(Ce) scintillators” [Progress in Particle and Nuclear Physics 141 (2025) 104152 1-47]
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2025-02-06 DOI: 10.1016/j.ppnp.2025.104161
J.-M. Régis , L.M. Fraile , M. Rudigier
{"title":"Corrigendum to “γ-γ fast timing with high-performance LaBr3(Ce) scintillators” [Progress in Particle and Nuclear Physics 141 (2025) 104152 1-47]","authors":"J.-M. Régis ,&nbsp;L.M. Fraile ,&nbsp;M. Rudigier","doi":"10.1016/j.ppnp.2025.104161","DOIUrl":"10.1016/j.ppnp.2025.104161","url":null,"abstract":"","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"142 ","pages":"Article 104161"},"PeriodicalIF":14.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143478702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
γ-γ fast timing with high-performance LaBr3(Ce) scintillators 使用高性能 LaBr[式略](Ce)闪烁体进行[式略]-[式略]快速计时
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2025-02-01 DOI: 10.1016/j.ppnp.2024.104152
J.-M. Régis , L.M. Fraile , M. Rudigier
{"title":"γ-γ fast timing with high-performance LaBr3(Ce) scintillators","authors":"J.-M. Régis ,&nbsp;L.M. Fraile ,&nbsp;M. Rudigier","doi":"10.1016/j.ppnp.2024.104152","DOIUrl":"10.1016/j.ppnp.2024.104152","url":null,"abstract":"&lt;div&gt;&lt;div&gt;We present a review of the electronic &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-&lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; “fast-timing” technique in combination with LaBr&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;(Ce) scintillator detectors. The &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-&lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; fast-timing technique has increased in popularity since the commercial introduction of the LaBr&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;(Ce) scintillators in 2005. The use of LaBr&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;(Ce) for measurements of lifetimes of nuclear excited states has rapidly spread out over the world and also the setups have grown from a few detectors to large-scale fast-timing arrays. The LaBr&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;(Ce) is one of the fastest scintillators available with good relative energy resolution of about 3%. Due to high energy selectivity, lifetimes of nuclear excited states down to 1 ps in the best case can be determined directly via electronic &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-&lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; time-difference measurements. The use of the high-performance LaBr&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;(Ce) detectors made it possible to systematically investigate the &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-&lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; fast-timing technique over the total dynamic range corresponding to &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-ray energies of 40 keV up to 6.8 MeV with precision of 2(1) ps. A non-linear energy-dependent time difference between the signals of full-energy peak and Compton events is given. Related to this finding, a new procedure to calibrate the time response of full-energy peak events has been introduced as well as time-correction formulae to account for the Compton contributions in the total experimental &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-&lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; time-difference distribution. We present a review of the &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-&lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; fast-timing technique including the performance of the LaBr&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;(Ce) detectors, the electronic timing principles, the methods to analyze the experimental &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-&lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; time-difference distributions and the possible energy-dependent time deviations that can be observed using the &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-&lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt; fast-timing technique with many LaBr&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;(Ce) detectors. The use of a centrally symmetric detector arrangement with respect to the center of an extended &lt;span&gt;&lt;math&gt;&lt;mi&gt;γ&lt;/mi&gt;&lt;/math&gt;&lt;/span&gt;-ray emission area reduces any possible en","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"141 ","pages":"Article 104152"},"PeriodicalIF":14.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
QCD with background electromagnetic fields on the lattice: A review 晶格上具有背景电磁场的QCD:综述
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2025-02-01 DOI: 10.1016/j.ppnp.2024.104153
Gergely Endrődi
{"title":"QCD with background electromagnetic fields on the lattice: A review","authors":"Gergely Endrődi","doi":"10.1016/j.ppnp.2024.104153","DOIUrl":"10.1016/j.ppnp.2024.104153","url":null,"abstract":"<div><div>This review provides a comprehensive summary of results on the physics of strongly interacting matter in the presence of background electromagnetic fields, obtained via numerical lattice simulations of the underlying theory, Quantum Chromodynamics (QCD). Lattice QCD has guided our understanding of magnetized quarks and gluons via landmark results on the phase diagram, the equation of state, the confinement mechanism, anomalous transport phenomena as well as many more fascinating effects. Some of the lattice results lead to completely new paradigms in the description of hot magnetized quark matter and provided useful insights to a broad high-energy particle physics community. Since the first lattice QCD simulations with background fields, this field has been established as an independent research direction. We present the current status and recent developments of this field, together with an outlook including open questions to be answered in the near future.</div></div>","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"141 ","pages":"Article 104153"},"PeriodicalIF":14.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142967843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Physics case for quarkonium studies at the Electron Ion Collider
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2025-02-01 DOI: 10.1016/j.ppnp.2025.104162
Daniël Boer , Chris A. Flett , Carlo Flore , Daniel Kikoła , Jean-Philippe Lansberg , Maxim Nefedov , Charlotte Van Hulse , Shohini Bhattacharya , Jelle Bor , Mathias Butenschoen , Federico Ceccopieri , Longjie Chen , Vincent Cheung , Umberto D’Alesio , Miguel Echevarria , Yoshitaka Hatta , Charles E. Hyde , Raj Kishore , Leszek Kosarzewski , Cédric Lorcé , Shinsuke Yoshida
{"title":"Physics case for quarkonium studies at the Electron Ion Collider","authors":"Daniël Boer ,&nbsp;Chris A. Flett ,&nbsp;Carlo Flore ,&nbsp;Daniel Kikoła ,&nbsp;Jean-Philippe Lansberg ,&nbsp;Maxim Nefedov ,&nbsp;Charlotte Van Hulse ,&nbsp;Shohini Bhattacharya ,&nbsp;Jelle Bor ,&nbsp;Mathias Butenschoen ,&nbsp;Federico Ceccopieri ,&nbsp;Longjie Chen ,&nbsp;Vincent Cheung ,&nbsp;Umberto D’Alesio ,&nbsp;Miguel Echevarria ,&nbsp;Yoshitaka Hatta ,&nbsp;Charles E. Hyde ,&nbsp;Raj Kishore ,&nbsp;Leszek Kosarzewski ,&nbsp;Cédric Lorcé ,&nbsp;Shinsuke Yoshida","doi":"10.1016/j.ppnp.2025.104162","DOIUrl":"10.1016/j.ppnp.2025.104162","url":null,"abstract":"<div><div>The physics case for quarkonium-production studies accessible at the US Electron Ion Collider is described.</div></div>","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"142 ","pages":"Article 104162"},"PeriodicalIF":14.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143369689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
The 18F(p,α)15O reaction: A textbook case in nuclear astrophysics
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2025-01-10 DOI: 10.1016/j.ppnp.2025.104154
F. de Oliveira Santos
{"title":"The 18F(p,α)15O reaction: A textbook case in nuclear astrophysics","authors":"F. de Oliveira Santos","doi":"10.1016/j.ppnp.2025.104154","DOIUrl":"10.1016/j.ppnp.2025.104154","url":null,"abstract":"<div><div>Nuclear astrophysics recently celebrated its 100th anniversary and remains an active field of science. This article reviews several contemporary experimental techniques used to determine nuclear-reaction rates. Additionally, it presents some theoretical aspects directly related to these experimental techniques, providing an introduction to the fundamental principles underlying them. The <sup>18</sup>F(<span><math><mrow><mi>p</mi><mo>,</mo><mi>α</mi></mrow></math></span>)<sup>15</sup>O reaction, which is associated with <span><math><mi>γ</mi></math></span>-ray emission from classical novae during the first hours after expansion, is used as a central theme throughout the article. Several examples of recent experiments are highlighted, particularly those conducted in nuclear facilities utilizing radioactive beams.</div></div>","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"142 ","pages":"Article 104154"},"PeriodicalIF":14.5,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
From density response to energy functionals and back: An ab initio perspective on matter under extreme conditions 从密度响应到能量函数,再回到密度响应:从ab initio角度看极端条件下的物质
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2024-10-16 DOI: 10.1016/j.ppnp.2024.104144
Zhandos Moldabekov , Jan Vorberger , Tobias Dornheim
{"title":"From density response to energy functionals and back: An ab initio perspective on matter under extreme conditions","authors":"Zhandos Moldabekov ,&nbsp;Jan Vorberger ,&nbsp;Tobias Dornheim","doi":"10.1016/j.ppnp.2024.104144","DOIUrl":"10.1016/j.ppnp.2024.104144","url":null,"abstract":"<div><div>Energy functionals serve as the basis for different models and methods in quantum and classical many-particle physics. Arguably, one of the most successful and widely used approaches in material science at both ambient and extreme conditions is density functional theory (DFT). Various flavors of DFT methods are being actively used to study material properties at extreme conditions, such as in warm dense matter, dense plasmas, and nuclear physics applications. In this review, we focus on the warm dense matter regime, which occurs in the core of giant planets and stellar atmospheres, and as a transient state in inertial confinement fusion experiments. We discuss the connection between linear density response functions and free energy functionals as well as the utility of the linear response formalism for the construction of advanced functionals. As a new result, we derive <em>the stiffness theorem</em> linking the change in the intrinsic free energy to the density response properties of electrons. We review and summarize recent works that assess various exchange–correlation (XC) functionals for an inhomogeneous electron gas that is perturbed by a harmonic external field and for warm dense hydrogen using exact path integral quantum Monte Carlo data as an unassailable benchmark. This constitutes a valuable guide for selecting an appropriate XC functional for DFT calculations in the context of investigating the inhomogeneous electronic structure of warm dense matter. We stress that correctly simulating the strongly perturbed electron gas necessitates the correct UEG limit of the XC and non-interacting free-energy functionals.</div></div>","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"140 ","pages":"Article 104144"},"PeriodicalIF":14.5,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142530795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Lattice perspectives on doubly heavy tetraquarks 双重四夸克的晶格视角
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2024-10-05 DOI: 10.1016/j.ppnp.2024.104143
Anthony Francis
{"title":"Lattice perspectives on doubly heavy tetraquarks","authors":"Anthony Francis","doi":"10.1016/j.ppnp.2024.104143","DOIUrl":"10.1016/j.ppnp.2024.104143","url":null,"abstract":"<div><div>Doubly heavy tetraquarks have emerged as new probes to study the heavy hadron spectrum. With the experimental observation of the <span><math><mrow><msup><mrow><mi>J</mi></mrow><mrow><mi>P</mi></mrow></msup><mo>=</mo><msup><mrow><mn>1</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> <span><math><msubsup><mrow><mi>T</mi></mrow><mrow><mi>c</mi><mi>c</mi></mrow><mrow><mo>+</mo></mrow></msubsup></math></span>, they pose a unique opportunity to bring together efforts in experiment, phenomenology, and lattice QCD. In lattice calculations they are accessible as ground states, unlike hidden flavor tetraquarks, and this enables accurate determinations of the scattering parameters alongside the binding energies of these tetraquarks. Today, lattice calculations firmly predict <span><math><mrow><msup><mrow><mi>J</mi></mrow><mrow><mi>P</mi></mrow></msup><mo>=</mo><msup><mrow><mn>1</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> <span><math><msubsup><mrow><mi>T</mi></mrow><mrow><mi>b</mi><mi>b</mi></mrow><mrow><mi>u</mi><mi>d</mi></mrow></msubsup></math></span> and <span><math><msubsup><mrow><mi>T</mi></mrow><mrow><mi>b</mi><mi>b</mi></mrow><mrow><mi>u</mi><mi>s</mi></mrow></msubsup></math></span> as QCD bound states, while recent studies approaching the <span><math><mrow><msup><mrow><mi>J</mi></mrow><mrow><mi>P</mi></mrow></msup><mo>=</mo><msup><mrow><mn>1</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> <span><math><msubsup><mrow><mi>T</mi></mrow><mrow><mi>c</mi><mi>c</mi></mrow><mrow><mi>u</mi><mi>d</mi></mrow></msubsup></math></span> find it to be a virtual bound state at slightly non-physical input quark masses. Studies of the <span><math><mrow><msup><mrow><mi>J</mi></mrow><mrow><mi>P</mi></mrow></msup><mo>=</mo><msup><mrow><mn>1</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> <span><math><msubsup><mrow><mi>T</mi></mrow><mrow><mi>b</mi><mi>c</mi></mrow><mrow><mi>u</mi><mi>d</mi></mrow></msubsup></math></span> are ongoing and a new focus area. In light of these developments the evolution of this field until this point is reviewed. Emphasis is put on the methods in lattice spectroscopy that enable a robust evaluation of the lattice studies gathered. They are further reviewed towards their limitations and achievements. Current challenges and opportunities are discussed, including possibilities to approach the left-hand cut in the scattering analysis of the charm candidates and towards understanding the structure of those including two bottom quarks.</div></div>","PeriodicalId":412,"journal":{"name":"Progress in Particle and Nuclear Physics","volume":"140 ","pages":"Article 104143"},"PeriodicalIF":14.5,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433476","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
Hard Thermal Loop—Theory and applications 硬热环--理论与应用
IF 14.5 2区 物理与天体物理
Progress in Particle and Nuclear Physics Pub Date : 2024-09-10 DOI: 10.1016/j.ppnp.2024.104136
Najmul Haque , Munshi G. Mustafa
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