Physics Letters B最新文献

{"title":"Observational constraints on entropic cosmology","authors":"Javier Chagoya ,&nbsp;I. Díaz-Saldaña ,&nbsp;Mario H. Amante ,&nbsp;J.C. López-Domínguez ,&nbsp;M. Sabido","doi":"10.1016/j.physletb.2025.139415","DOIUrl":"10.1016/j.physletb.2025.139415","url":null,"abstract":"<div><div>In this work, we derive a generalized modified Friedmann equation based on an entropy-area relation that incorporates established modifications, such as volumetric, linear, and logarithmic terms, in addition to novel entropic modifications that might yield to relevant cosmological implications at different stages of the evolution of the Universe. Some of these modifications are capable of mimicking the effects of dark energy and describing the current state of accelerated expansion of the Universe. We study particular cases of the generalized Friedmann equation and constrain the free parameters using observational datasets, including Hubble parameter measurements, baryon acoustic oscillations, and strong lensing systems. Our findings indicate that the proposed models align well with current observational data, particularly in low-redshift regimes; furthermore, these models are compatible with the value of <span><math><msub><mrow><mi>H</mi></mrow><mrow><mn>0</mn></mrow></msub></math></span> obtained by the SH0ES program.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139415"},"PeriodicalIF":4.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739037","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}

{"title":"The charge and magnetic radii of the nucleons from the generalized parton distributions","authors":"","doi":"10.1016/j.physletb.2025.139423","DOIUrl":"10.1016/j.physletb.2025.139423","url":null,"abstract":"<div><div>The proton-radius puzzle refers to the discrepancy observed in measurements of the proton's charge radius when using different methods. This inconsistency has prompted extensive research and debate within the physics community, as it challenges the understanding of quantum electrodynamics and the fundamental properties of protons. In the present study, we determine the charge and magnetic radii of the proton and neutron through a global analysis of the generalized parton distributions (GPDs) at zero skewness. We emphasize the importance of a simultaneous analysis of all available experimental data related to nucleon radii, rather than relying on individual experiments, specific observables, or limited kinematic regions. This comprehensive approach ensures robust and consistent results, avoiding values that are either too small or too large. Our analysis yields the following results: <span><math><msub><mrow><mi>r</mi></mrow><mrow><mi>p</mi><mi>E</mi></mrow></msub><mo>=</mo><mn>0.8558</mn><mo>±</mo><mn>0.0135</mn><mspace></mspace><mtext>fm</mtext></math></span>, <span><math><msub><mrow><mi>r</mi></mrow><mrow><mi>p</mi><mi>M</mi></mrow></msub><mo>=</mo><mn>0.8268</mn><mo>±</mo><mn>0.0533</mn><mspace></mspace><mtext>fm</mtext></math></span>, <span><math><mrow><mo>〈</mo><msubsup><mrow><mi>r</mi></mrow><mrow><mi>n</mi><mi>E</mi></mrow><mrow><mn>2</mn></mrow></msubsup><mo>〉</mo></mrow><mo>=</mo><mo>−</mo><mn>0.1181</mn><mo>±</mo><mn>0.0270</mn><mspace></mspace><msup><mrow><mtext>fm</mtext></mrow><mrow><mn>2</mn></mrow></msup></math></span>, and <span><math><msub><mrow><mi>r</mi></mrow><mrow><mi>n</mi><mi>M</mi></mrow></msub><mo>=</mo><mn>0.8367</mn><mo>±</mo><mn>0.0845</mn><mspace></mspace><mtext>fm</mtext></math></span>.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139423"},"PeriodicalIF":4.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716343","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}

{"title":"Medium-induced modification of groomed and ungroomed jet mass and angularities in Pb–Pb collisions at sNN=5.02","authors":"","doi":"10.1016/j.physletb.2025.139409","DOIUrl":"10.1016/j.physletb.2025.139409","url":null,"abstract":"<div><div>The ALICE Collaboration presents a new suite of jet substructure measurements in Pb–Pb and pp collisions at a center-of-mass energy per nucleon pair <span><math><msqrt><mrow><msub><mrow><mi>s</mi></mrow><mrow><mi>NN</mi></mrow></msub></mrow></msqrt><mo>=</mo><mn>5.02</mn></math></span> <figure><img></figure>. These measurements provide access to the internal structure of jets via the momentum and angle of their constituents, probing how the quark–gluon plasma modifies jets, an effect known as jet quenching. Jet grooming additionally removes soft wide-angle radiation to enhance perturbative accuracy and reduce experimental uncertainties. We report the groomed and ungroomed jet mass <span><math><msub><mrow><mi>m</mi></mrow><mrow><mi>jet</mi></mrow></msub></math></span> and jet angularities <span><math><msubsup><mrow><mi>λ</mi></mrow><mrow><mi>α</mi></mrow><mrow><mi>κ</mi></mrow></msubsup></math></span> using <span><math><mi>κ</mi><mo>=</mo><mn>1</mn></math></span> and <span><math><mi>α</mi><mo>&gt;</mo><mn>0</mn></math></span>. Charged-particle jets are reconstructed at midrapidity using the anti-<span><math><msub><mrow><mi>k</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span> algorithm with resolution parameter <span><math><mi>R</mi><mo>=</mo><mn>0.2</mn></math></span>. A narrowing of the jet mass and angularity distributions in Pb–Pb collisions with respect to pp is observed and is enhanced for groomed results, confirming modification of the jet core. By using consistent jet definitions and kinematic cuts between the mass and angularities for the first time, previous inconsistencies in the interpretation of quenching measurements are resolved, rectifying a hurdle for understanding how jet quenching arises from first principles and highlighting the importance of a well-controlled baseline. These results are compared with a variety of theoretical models of jet quenching, providing constraints on jet energy-loss mechanisms in the quark–gluon plasma.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139409"},"PeriodicalIF":4.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767816","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}

{"title":"Hadronic scattering effects on ψ(2S) suppression in relativistic heavy-ion collisions","authors":"L.M. Abreu ,&nbsp;F.S. Navarra ,&nbsp;H.P.L. Vieira","doi":"10.1016/j.physletb.2025.139407","DOIUrl":"10.1016/j.physletb.2025.139407","url":null,"abstract":"<div><div>In this work we estimate the <span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>ψ</mi><mo>(</mo><mn>2</mn><mi>S</mi><mo>)</mo></mrow></msub><mo>/</mo><msub><mrow><mi>N</mi></mrow><mrow><mi>J</mi><mo>/</mo><mi>ψ</mi></mrow></msub></math></span> yield ratio in heavy-ion collisions, considering the interactions of the <span><math><mi>ψ</mi><mo>(</mo><mn>2</mn><mi>S</mi><mo>)</mo></math></span> and <span><math><mi>J</mi><mo>/</mo><mi>ψ</mi></math></span> states with light mesons in the hadron gas formed at the late stages of these collisions. Starting from the appropriate effective Lagrangians, we first compute the thermally-averaged cross sections for the production and absorption of the mentioned states, and then use them as input in the rate equations to determine the time evolution of <span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>ψ</mi><mo>(</mo><mn>2</mn><mi>S</mi><mo>)</mo></mrow></msub></math></span>, <span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>J</mi><mo>/</mo><mi>ψ</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>ψ</mi><mo>(</mo><mn>2</mn><mi>S</mi><mo>)</mo></mrow></msub><mo>/</mo><msub><mrow><mi>N</mi></mrow><mrow><mi>J</mi><mo>/</mo><mi>ψ</mi></mrow></msub></math></span>. The main conclusion of our study is that the <span><math><mi>ψ</mi><mo>(</mo><mn>2</mn><mi>S</mi><mo>)</mo></math></span> and <span><math><mi>J</mi><mo>/</mo><mi>ψ</mi></math></span> multiplicities do not change much in the hadron gas phase and that the <span><math><mi>ψ</mi><mo>(</mo><mn>2</mn><mi>S</mi><mo>)</mo></math></span> is more absorbed than the <span><math><mi>J</mi><mo>/</mo><mi>ψ</mi></math></span>. The obtained final ratio is in agreement with recent experimental data.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139407"},"PeriodicalIF":4.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696014","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}

{"title":"Circular orbits and thin accretion disk around a quantum corrected black hole","authors":"Yu-Heng Shu ,&nbsp;Jia-Hui Huang","doi":"10.1016/j.physletb.2025.139411","DOIUrl":"10.1016/j.physletb.2025.139411","url":null,"abstract":"<div><div>In this paper, we first consider the shadow radius of a quantum corrected black hole proposed recently, and provide a bound on the correction parameter <em>ξ</em> based on the observational data of Sgr A*. Then, the effects of the correction parameter on the energy, angular momenta and angular velocities of particles on circular orbits in the accretion disk are discussed. It is found that the correction parameter has significant effects on the angular momenta of particles on the circular orbits even in the far region from the black hole. It would be possible to identify the value of <em>ξ</em> by the observations of the angular momenta of particles in the disk. We also consider the impact of <em>ξ</em> on the radius of the innermost stable circular orbit and the radiative efficiency of the black hole. Then, the radiation properties of the accretion disk around the black hole are studied. The dependence of the observed radiation flux on the polar angle on the observation plane and the observed radiation flux of the direct image of the quantum black hole are illustrated. Finally, we consider how the correction parameter affect the emitted and observed radiation fluxes from a thin accretion disk around the black hole. Polynomial fitting functions are identified for the relations between the maxima of three typical radiation fluxes and the correction parameter.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139411"},"PeriodicalIF":4.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696015","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}

{"title":"Two- versus three-body approach to femtoscopic hadron-deuteron correlations","authors":"Stanisław Mrówczyński","doi":"10.1016/j.physletb.2025.139413","DOIUrl":"10.1016/j.physletb.2025.139413","url":null,"abstract":"<div><div>The three-body approach to hadron-deuteron correlations is shown to turn into a two-body approach if the three-particle hadron-deuteron wave function factorizes into the deuteron wave-function and the wave function of a hadron motion relative to the deuteron. Then, the hadron-deuteron correlation function is as in the two-body approach only the source radius somewhat changes. For this reason, as we argue, the two-body approach works well for kaon-deuteron correlations but it fails for proton-deuteron ones in case of small sources. Applying the three-body approach generalized to the case where the radius of the hadron source is different from the nucleon source radius, we derive the source radius formula which used in the two-body approach gives the correlation function as in the ‘factorized’ three-body one. The formula is discussed in the context of existing and future experimental data.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139413"},"PeriodicalIF":4.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687982","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}

{"title":"Angular analysis of the B0 → K⁎(892)0μ+μ− decay in proton-proton collisions at s=13TeV","authors":"","doi":"10.1016/j.physletb.2025.139406","DOIUrl":"10.1016/j.physletb.2025.139406","url":null,"abstract":"<div><div>A full set of optimized observables is measured in an angular analysis of the decay <span><math><msup><mrow><mi>B</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>→</mo><msup><mrow><mi>K</mi></mrow><mrow><mo>⁎</mo></mrow></msup><msup><mrow><mo>(</mo><mn>892</mn><mo>)</mo></mrow><mrow><mn>0</mn></mrow></msup><msup><mrow><mi>μ</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>μ</mi></mrow><mrow><mo>−</mo></mrow></msup></math></span> using a sample of proton-proton collisions at <span><math><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13</mn><mspace></mspace><mtext>TeV</mtext></math></span>, collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 140<!--> <span><math><msup><mrow><mtext>fb</mtext></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></math></span>. The analysis is performed in six bins of the squared invariant mass of the dimuon system, <span><math><msup><mrow><mi>q</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span>, over the range <span><math><mn>1.1</mn><mo>&lt;</mo><msup><mrow><mi>q</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>&lt;</mo><mn>16</mn><mspace></mspace><msup><mrow><mtext>GeV</mtext></mrow><mrow><mn>2</mn></mrow></msup></math></span>. The results are among the most precise experimental measurements of the angular observables for this decay and are compared to a variety of predictions based on the standard model. Some of these predictions exhibit tension with the measurements.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139406"},"PeriodicalIF":4.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716341","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}

{"title":"Carroll–Field–Jackiw term in a massless Rarita-Schwinger model","authors":"M. Gomes ,&nbsp;J.G. Lima ,&nbsp;T. Mariz ,&nbsp;J.R. Nascimento ,&nbsp;A.Yu. Petrov","doi":"10.1016/j.physletb.2025.139408","DOIUrl":"10.1016/j.physletb.2025.139408","url":null,"abstract":"<div><div>We consider the massless Rarita-Schwinger (RS) LV QED. In this theory, we introduce the gauge fixing to obtain the propagator for the RS field, and calculate the Carroll-Field-Jackiw term, which turns out to be finite and ambiguous, and only in one calculation scheme, based on the nonlinear gauge framework, the gauge independence of the result is achieved.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139408"},"PeriodicalIF":4.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687938","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}

{"title":"A background for thermal photons in heavy ion collisions","authors":"Satya Ranjan Nayak ,&nbsp;Gauri Devi ,&nbsp;B.K. Singh","doi":"10.1016/j.physletb.2025.139410","DOIUrl":"10.1016/j.physletb.2025.139410","url":null,"abstract":"<div><div>In this work, we present the transverse momentum spectra of prompt and decay photons in Au-Au collisions for <span><math><msqrt><mrow><msub><mrow><mi>s</mi></mrow><mrow><mi>N</mi><mi>N</mi></mrow></msub></mrow></msqrt><mo>=</mo></math></span> 200 GeV, 62.4 GeV, 39 GeV, and 27 GeV. The major sources of the photons in Angantyr include hard processes, Parton showers, and resonance decay. The multiparton interactions and hadronic rescatterings significantly increase the photon yield. The model shows a good match with the available experimental data at high <span><math><msub><mrow><mi>p</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span>. The difference in yield at low <span><math><msub><mrow><mi>p</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span> suggests that Quark Gluon Plasma of <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>e</mi><mi>f</mi><mi>f</mi></mrow></msub></math></span> = 0.167 GeV/c in central Au-Au collision at 200 GeV is formed, the new effective temperature is less than the ones extracted without removing background photons. At low <span><math><msub><mrow><mi>p</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span> the decay photon spectra scales with <span><math><msup><mrow><mo>(</mo><mfrac><mrow><mi>d</mi><msub><mrow><mi>N</mi></mrow><mrow><mi>c</mi><mi>h</mi></mrow></msub></mrow><mrow><mi>d</mi><mi>η</mi></mrow></mfrac><mo>)</mo></mrow><mrow><mn>1.25</mn></mrow></msup></math></span>, the scaling is independent of collision energy and system size. The scaling no longer holds at high <span><math><msub><mrow><mi>p</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span> and the spectra become beam energy dependent. The scaled <span><math><msub><mrow><mi>p</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span> spectra of p-p and d-Au collisions show an opposite trend at high <span><math><msub><mrow><mi>p</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span>, their scaled yield is greater than the Au-Au collision at the same energy.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139410"},"PeriodicalIF":4.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696013","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}

{"title":"Hidden charm-bottom structures bcb‾c‾: Axial-vector case","authors":"S.S. Agaev ,&nbsp;K. Azizi ,&nbsp;H. Sundu","doi":"10.1016/j.physletb.2025.139404","DOIUrl":"10.1016/j.physletb.2025.139404","url":null,"abstract":"<div><div>Mass and width of a hidden charm-bottom axial-vector structure <em>T</em> containing <span><math><mi>b</mi><mi>c</mi><mover><mrow><mi>b</mi></mrow><mo>‾</mo></mover><mover><mrow><mi>c</mi></mrow><mo>‾</mo></mover></math></span> quarks are calculated in QCD sum rule framework. It is treated as a diquark-antidiquark state built of scalar diquark and axial-vector antidiquark components. The mass of <em>T</em> is computed using the two-point sum rule method. The width of this particle is evaluated by considering eight decay modes: The decays to <span><math><msub><mrow><mi>η</mi></mrow><mrow><mi>b</mi></mrow></msub><mi>J</mi><mo>/</mo><mi>ψ</mi></math></span>, <span><math><msub><mrow><mi>η</mi></mrow><mrow><mi>c</mi></mrow></msub><mi>ϒ</mi><mo>(</mo><mn>1</mn><mi>S</mi><mo>)</mo></math></span>, <span><math><msubsup><mrow><mi>B</mi></mrow><mrow><mi>c</mi></mrow><mrow><mo>−</mo></mrow></msubsup><msubsup><mrow><mi>B</mi></mrow><mrow><mi>c</mi></mrow><mrow><mo>⁎</mo><mo>+</mo></mrow></msubsup></math></span>, and <span><math><msubsup><mrow><mi>B</mi></mrow><mrow><mi>c</mi></mrow><mrow><mo>+</mo></mrow></msubsup><msubsup><mrow><mi>B</mi></mrow><mrow><mi>c</mi></mrow><mrow><mo>⁎</mo><mo>−</mo></mrow></msubsup></math></span> are dissociation processes, in which all initial quarks are distributed between the final-state particles. The decays to <em>DD</em> and <em>BB</em> mesons with appropriate charges and spin-parities are channels generated due to the annihilations of <span><math><mi>b</mi><mover><mrow><mi>b</mi></mrow><mo>‾</mo></mover></math></span> and <span><math><mi>c</mi><mover><mrow><mi>c</mi></mrow><mo>‾</mo></mover></math></span> quarks from <em>T</em>. Partial widths for all of these processes are obtained by employing the three-point sum rule approach necessary to find the strong couplings at relevant tetraquark-meson-meson vertices. Our results for the mass <span><math><mi>m</mi><mo>=</mo><mo>(</mo><mn>12715</mn><mo>±</mo><mn>90</mn><mo>)</mo><mspace></mspace><mrow><mi>MeV</mi></mrow></math></span> and width <span><math><mi>Γ</mi><mo>[</mo><mi>T</mi><mo>]</mo><mo>=</mo><mo>(</mo><mn>140</mn><mo>±</mo><mn>13</mn><mo>)</mo><mspace></mspace><mrow><mi>MeV</mi></mrow></math></span> of the tetraquark <em>T</em>, as well as its numerous decay channels explored in this article are useful for ongoing and future experimental investigations of fully heavy resonances.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"864 ","pages":"Article 139404"},"PeriodicalIF":4.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696016","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}