Article
Astronomy & Astrophysics
Si-Qiang Luo, Bing Chen, Xiang Liu, Takayuki Matsuki
Summary: Using an unquenched quark model, a charmed-strange baryon state Omega(d)(c0)(1P, 1/2(-)) is predicted with a mass below a specific threshold, analogous to the D*(s0)(2317) meson. It is suggested that the Belle II experiment could explore this prediction in the future Omega(()(c)*())gamma mass spectrum experiment.
Article
Astronomy & Astrophysics
Natsumi Ikeno, Genaro Toledo, Eulogio Oset
Summary: This study uses the correlation function method to investigate the interaction between coupled channels. By analyzing synthetic data, we successfully determine the interaction of the (DK+)-K-0, (D+K0), and D-s(+)eta channels as well as the existence of a bound state. The study also evaluates the scattering characteristics of the three channels and the coupling of the bound state to its components.
Article
Astronomy & Astrophysics
Shu-Yi Kong, Jun-Tao Zhu, Dan Song, Jun He
Summary: In this work, heavy-strange meson systems were systematically investigated to study possible molecules using a quasipotential Bethe-Salpter equation approach and one-boson exchange model. Molecular states were found and their relationships were explored, shedding light on the internal structure of various heavy-strange mesons.
Article
Physics, Particles & Fields
Martin Hoferichter, Bai-Long Hoid, Bastian Kubis, Dominic Schuh
Summary: The study provides an analysis of hadronic vacuum polarization at subpercent precision, focusing on isospin-breaking effects and leading infrared-enhanced effects in the e(+) e(-) -> 3 pi process. The results show constraints on the total 3 pi contribution to the anomalous magnetic moment of the muon, with a detailed breakdown of the different components contributing to the total value.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Nuclear
Meng Han, Wei Li, Su-Yan Pei, Ting-Ting Liu, Guo-Li Wang
Summary: In this study, we calculate the dominant strong and electromagnetic decays of the conventional meson D*(S0)(2317)(+) using the Bethe-Salpeter method. Our results show that the decay width of D*(s0) -> D-s(+) pi(0) is 7.83(-1.55)(+1.97) keV, and the decay width of D*(+)(s0) -> D*(+)(s) gamma is 2.55(-0.45)(+0.37) keV. We also calculate the contributions of different partial waves from the initial and final state wave functions to the decay width, and find that relativistic corrections play a significant role in both decay processes.
Article
Physics, Multidisciplinary
Meng-Na Tang, Yong-Hui Lin, Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meissner
Summary: The internal structure of charm-strange mesons D-s0*(2317) and D-s1(2460) is being extensively studied. Their narrow widths are due to their dominant decay through isospin-breaking hadronic channels. The decay of D-s1(2460) can also occur through hadronic final states with isospin conservation, but is strongly suppressed due to phase space limitations. By considering the Ds1(2460) as a D*K hadronic molecule, we find that the predicted partial widths and the pi(+)pi(-) invariant mass distribution are consistent with experimental measurements, and suggest possible ways to distinguish between the hadronic molecular and compact state pictures for the D-s1(2460)(+). Predictions for B-s1(0) -> B-s(0) pi(+) pi(-) are also made.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2023)
Article
Physics, Particles & Fields
Jorge Baeza-Ballesteros, Johan Bijnens, Tomas Husek, Fernando Romero-Lopez, Stephen R. Sharpe, Mattias Sjo
Summary: In this study, we compute the value of the three-particle K-matrix, K-df,K-3, for systems of three pions at maximal isospin through next-to-leading order in Chiral Perturbation Theory. We compare the values to existing lattice QCD results and find that incorporating NLO effects significantly improves the agreement between lattice QCD data and ChPT in the first two coefficients of the threshold expansion of K-df, K-3.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Multidisciplinary
Martin Hoferichter, Gilberto Colangelo, Bai-Long Hoid, Bastian Kubis, Jacobo Ruiz de Elvira, Dominic Schuh, Dominik Stamen, Peter Stoffer
Summary: This study focuses on the puzzles arising from the precision measurement of the muon's anomalous magnetic moment at Fermilab, particularly the discrepancies between lattice QCD and e+e- data evaluations. A data-driven approach is proposed to identify and compare the different components in lattice QCD calculations, aiming to trace the source of the discrepancy.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Xiu-Wu Wang, Zhi-Gang Wang, Guo-Liang Yu, Qi Xin
Summary: In this study, color singlet-singlet-type five-quark currents were constructed to explore pentaquark states using quantum chromodynamics sum rules for the first time. The numerical results support the identification of certain states as pentaquark states, and indicate that states with higher isospin have slightly larger masses. Observations of high pentaquark candidates in the J/psi Delta invariant mass spectrum could provide insights on the nature of these states and help distinguish between different scenarios.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2022)
Article
Astronomy & Astrophysics
Gilberto Colangelo, Martin Hoferichter, Bastian Kubis, Malwin Niehus, Jacobo Ruiz de Elvira
Summary: This study investigates the pion-mass dependence of the two-pion channel in the hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon a(mu)(HVP). The researchers utilize an Omnes representation for the pion vector form factor with the phase shift derived from the inverse-amplitude method (IAM). The findings provide constraints on the dominant isospin-1 part of the isospin-symmetric light-quark contribution and offer improved control over the chiral extrapolation of a(mu)(HVP), which is essential for lattice-QCD calculations performed at larger-than-physical pion masses.
Article
Astronomy & Astrophysics
H. -T. Ding, S. -T. Li, J. -H. Liu, X. -D. Wang
Summary: The screening lengths of neutral pseudoscalar mesons are intrinsically connected to (inverse) magnetic catalysis of chiral condensates. The complex dependences of screening masses and chiral condensates on magnetic field and temperature reflect the crossover nature of the QCD transition. These findings are important for guiding low-energy models and effective theories of QCD.
Article
Multidisciplinary Sciences
Eckart Marsch, Yasuhito Narita
Summary: A new approach to the Dirac equation and the associated hadronic symmetries is proposed, highlighting the use of the spinor-helicity representation. By expanding the standard Dirac equation with an inner abstract hadronic isospin, the occurrence of a quadruplet of inner states reveals the SU(4) symmetry. This leads to two independent fermion state spaces, interpreted as the U(1) symmetry of the leptons and the SU(3) symmetry of the three quarks.
Article
Physics, Multidisciplinary
J. Dalseno
Summary: This paper proposes a method of rescaling isospin triangles to constrain phi(2) (alpha) using relative branching fractions instead of absolute values. The method aims to reduce systematic errors and eliminate the uncertainty in the number of B (B) over bar pairs in data at Belle II. Additionally, the paper shows that a phi(2) constraint in the B -> rho rho system at LHCb can be achieved even without a measurement of CP violation in B-0 -> rho(+)rho(-).
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Astronomy & Astrophysics
J. P. Carlomagno, D. Gomez Dumm, N. N. Scoccola
Summary: The study uses a nonlocal PNJL model to analyze the features of strongly interacting matter in the presence of nonzero isospin chemical potential, describing the behavior of thermodynamic quantities and studying the phase diagram in the mu(I) - T plane. It is found that the system may be in an isospin symmetry broken phase under certain conditions, with results for the phase diagram being in better agreement with lattice QCD calculations than other theoretical approaches such as the local PNJL model.
Article
Astronomy & Astrophysics
Hong Qiang Zhu, Yin Huang
Summary: This paper explores the possible interpretation of Y(4274) as a hadron molecular state of D-s and (D) over bar (s0) (2317) mesons, based on the measurement of its J psi phi decay model by the LHCb Collaboration. The results show that Y(4274) is unlikely to be a D-s(D) over bar (s0) (2317) molecular state, while a J(P) =1(+)D(s)(D) over bar (s0) molecular state model may be a closer fit to the experimental data.
Article
Physics, Multidisciplinary
Meng-Na Tang, Yong-Hui Lin, Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meissner
Summary: The internal structure of charm-strange mesons D-s0*(2317) and D-s1(2460) is being extensively studied. Their narrow widths are due to their dominant decay through isospin-breaking hadronic channels. The decay of D-s1(2460) can also occur through hadronic final states with isospin conservation, but is strongly suppressed due to phase space limitations. By considering the Ds1(2460) as a D*K hadronic molecule, we find that the predicted partial widths and the pi(+)pi(-) invariant mass distribution are consistent with experimental measurements, and suggest possible ways to distinguish between the hadronic molecular and compact state pictures for the D-s1(2460)(+). Predictions for B-s1(0) -> B-s(0) pi(+) pi(-) are also made.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2023)
Article
Multidisciplinary Sciences
Shihang Shen, Serdar Elhatisari, Timo A. Laehde, Dean Lee, Bing-Nan Lu, Ulf-G. Meissner
Summary: The carbon atom is the backbone of organic chemistry and has a complex nucleus in its predominant isotope, C-12. In this study, a model-independent density map of the nuclear states of C-12 is provided using nuclear lattice effective field theory. The well-known Hoyle state is found to have a bent-arm or obtuse triangular arrangement of alpha clusters. All low-lying nuclear states of C-12 are identified as having an intrinsic shape composed of three alpha clusters forming either an equilateral triangle or an obtuse triangle.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Teng Ji, Xiang-Kun Dong, Miguel Albaladejo, Meng-Lin Du, Feng-Kun Guo, Juan Nieves, Bing-Song Zou
Summary: We propose that the X(3915) observed in the J/psi x channel is the same as the chi(c2)(3930), while the X(3960) observed in the Ds+Ds- channel is an S-wave Ds+Ds- hadronic molecule. Additionally, we find that the B+ -> D+D-K+ component with J(PC) = 0(++) assigned to the X(3915) in the current Review of Particle Physics has the same origin as the X(3960) with a mass of around 3.94 GeV. By analyzing available data in the D (D) over bar and Ds+Ds- channels from B decays and gamma gamma fusion reaction, considering both the D (D) over bar -D-s(D) over bar (s)-D*(D) over bar*-D-s*(D) over bar (s)* coupled channels with 0(++) and a 2(++) state introduced additionally, we find that all the data in different processes can be simultaneously well reproduced, and four hidden-charm scalar molecular states with masses around 3.73, 3.94, 3.99, and 4.23 GeV are produced. These results may deepen our understanding of the spectrum of charmonia and the interactions between charmed hadrons.
Article
Astronomy & Astrophysics
Mao-Jun Yan, Jorgivan M. M. Dias, Adolfo Guevara, Feng-Kun Guo, Bing-Song Zou
Summary: We interpret the newly observed eta(1)(1855) resonance with exotic J(PC) = 1(-+) quantum numbers in the I = 0 sector, as a dynamically generated state from the interaction between lightest pseudoscalar mesons and axial-vector mesons. The interaction is derived from the lowest order chiral Lagrangian, which is then unitarized using the Bethe-Salpeter equation, according to the chiral unitary approach. We evaluate the decays of eta(1)(1855) into eta eta' and K (K) over bar*pi channels, and find that the latter has a larger branching fraction. Furthermore, we investigate its SU(3) partners and suggest searching for two additional eta(1) exotic mesons with masses around 1.4 and 1.7 GeV.
Article
Astronomy & Astrophysics
Feng-Kun Guo, Yuki Kamiya, Maxim Mai, Ulf-G. Meissner
Summary: Starting from the SU(3) limit, the nature of the dynamically generated resonances Lambda(1380), Lambda(1405) and Lambda(1680) were studied as the masses of pion and kaon were tuned to their physical values. It was found that the accidental symmetry of the two octets due to the leading order Weinberg-Tomozawa term is broken by the next-to-leading order terms. Most interestingly, an interchange of the two trajectories of Lambda(1380) and Lambda(1405) away from the SU(3) limit at next-to-leading order was observed.
Review
Physics, Nuclear
V. D. Burkert, L. Elouadrhiri, A. Afanasev, J. Arrington, M. Contalbrigo, W. Cosyn, A. Deshpande, D. I. Glazier, X. Ji, S. Liuti, Y. Oh, D. Richards, T. Satogata, A. Vossen, H. Abdolmaleki, A. Albataineh, C. A. Aidala, C. Alexandrou, H. Avagyan, A. Bacchetta, M. Baker, F. Benmokhtar, J. C. Bernauer, C. Bissolotti, W. Briscoe, D. Byers, Xu Cao, C. E. Carlson, K. Cichy, I. C. Cloet, C. Cocuzza, P. L. Cole, M. Constantinou, A. Courtoy, H. Dahiyah, K. Dehmelt, S. Diehl, C. Dilks, C. Djalali, R. Dupre, S. C. Dusa, B. El-Bennich, L. El Fassi, T. Frederico, A. Freese, B. R. Gamage, L. Gamberg, R. R. Ghoshal, F. X. Girod, V. P. Goncalves, Y. Gotra, F. K. Guo, X. Guo, M. Hattawy, Y. Hatta, T. Hayward, O. Hen, G. M. Huber, C. Hyde, E. L. Isupov, B. Jacak, W. Jacobs, A. Jentsch, C. R. Ji, S. Joosten, N. Kalantarians, Z. Kang, A. Kim, S. Klein, B. Kriesten, S. Kumano, A. Kumar, K. Kumericki, M. Kuchera, W. K. Lai, Jin Li, Shujie Li, W. Li, X. Li, H. -W. Lin, K. F. Liu, Xiaohui Liu, P. Markowitz, V Mathieu, M. McEneaney, A. Mekki, J. P. B. C. de Melo, Z. E. Meziani, R. Milner, H. Mkrtchyan, V. Mochalov, V. Mokeev, V. Morozov, H. Moutarde, M. Murray, S. Mtingwa, P. Nadel-Turonski, V. A. Okorokov, E. Onyie, L. L. Pappalardo, Z. Papandreou, C. Pecar, A. Pilloni, B. Pire, N. Polys, A. Prokudin, M. Przybycien, J. -W. Qiu, M. Radici, R. Reed, F. Ringer, B. J. Roy, N. Sato, A. Schaefer, B. Schmookler, G. Schnell, P. Schweitzer, R. Seidl, K. M. Semenov-Tian-Shansky, F. Serna, F. Shaban, M. H. Shabestari, K. Shiells, A. Signori, H. Spiesberger, I. Strakovsky, R. S. Sufian, A. Szczepaniak, L. Teodorescu, J. Terry, O. Teryaev, F. Tessarotto, C. Timmer, Abdel Nasser Tawfik, L. Valenzuela Cazares, A. Vladimirov, E. Voutier, D. Watts, D. Wilson, D. Winney, B. Xiao, Z. Ye, Zh. Ye, F. Yuan, N. Zachariou, I. Zahed, J. L. Zhang, Y. Zhang, J. Zhou
Summary: This White Paper aims to emphasize the significant advantages in the scientific progress achieved by the EIC. High luminosity operation is highly desirable as it allows for faster production and collection of scientific results. This becomes crucial for programs that require months or even years of operation at lower luminosity.
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
(2023)
Article
Physics, Particles & Fields
J. Yu. Panteleeva, E. Epelbaum, J. Gegelia, U. -G. Meissner
Summary: We determine the definition details of the spatial densities corresponding to the gravitational form factors of spin-0 and spin-1/2 systems using spherically symmetric sharply localized wave packets. The expressions for these spatial densities are provided in reference frames with both zero and non-zero expectation values of the momentum operator.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Astronomy & Astrophysics
Maral Salajegheh, Hamzeh Khanpour, Ulf-G. Meissner, Hadi Hashamipour, Maryam Soleymaninia
Summary: This study presents an updated set of SKMHS diffractive parton distribution functions (PDFs), including the recent diffractive dijet cross-section measurement. The new sets, SKMHS23 and SKMHS23-dijet, are presented at NLO and NNLO accuracy in perturbative QCD. The effect of diffractive dijet data and higher-order QCD corrections on the extracted PDFs and data/theory agreements are clearly examined and discussed.
Article
Astronomy & Astrophysics
Zhao-Sai Jia, Mao-Jun Yan, Zhen-Hua Zhang, Pan-Pan Shi, Gang Li, Feng-Kun Guo
Summary: Based on the hypothesis that the Tcc discovered at LHCb is a D0=D0 hadronic molecule, we studied the partial width of its heavy quark spin partner, the Tcc, as a D⠂0D⠂0 shallow bound state. We considered the contributions of the D⠂D and D⠂pi final state interactions and found that the rescattering corrections can significantly affect the decay widths. The total width of the Tcc was predicted to be about 41 keV.
Article
Physics, Nuclear
Johann Haidenbauer, Ulf-G. Meissner, Andreas Nogga, Hoai Le
Summary: A hyperon-nucleon potential for the S = -1 sector up to third order in the chiral expansion is introduced, considering both the SU(3) flavor symmetry and explicit SU(3) symmetry breaking. An innovative regularization scheme is used, leading to an excellent description of scattering data and the analysis of new data from J-PARC. Results for hypertriton and A = 4 hyper-nuclear separation energies are presented, along with an uncertainty estimate for selected observables in the hyperon-nucleon system.
EUROPEAN PHYSICAL JOURNAL A
(2023)
Article
Physics, Nuclear
Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meissner
Summary: Using dispersion theory, the Sigma-to-Lambda transition form factors in electromagnetic interactions are calculated considering the pion electromagnetic form factor, SU(3) chiral perturbation theory, the baryon decuplet, and the pi pi- K coupled-channel effect. The electric form factor is significantly affected by the inclusion of the K channel, while the magnetic form factor is minimally affected. The uncertainties in the three-flavor chiral perturbation theory are estimated using a bootstrap sampling method.
EUROPEAN PHYSICAL JOURNAL A
(2023)
Article
Physics, Particles & Fields
Chao-Wei Shen, Yong-hui Lin, Ulf-G. Meissner
Summary: Using an effective Lagrangian with heavy quark spin symmetry, this study investigates the coupled-channel dynamics of the doubly charmed systems D-(*) Sigma((*))(c). The potential considered includes exchanges of pseudoscalar and vector mesons in the t-channel. By applying the first iterated solution of the N/ D method, several S-wave bound states with isospin I = 1/2 are discovered. These states correspond to open-charm partners of the hidden charm pentaquarks P-psi(N) observed by the LHCb Collaboration.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Physics, Particles & Fields
J. Yu. Panteleeva, E. Epelbaum, J. Gegelia, U-G Meissner
Summary: Using spherically symmetric sharply localized wave packets, we determine the details of defining the spatial densities corresponding to the gravitational form factors of spin-0 and spin-1/2 systems. The expressions for the spatial densities are provided in the frames with both zero and non-zero expectation values of the momentum operator.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Astronomy & Astrophysics
Nelson R. F. Braga, Octavio C. Junqueira
Summary: This study investigates the influence of rotation on the transition temperature of strongly interacting matter produced in non-central heavy ion collisions. By using a holographic description of an AdS black hole, the authors extend the analysis to the more realistic case where the matter spreads over a region around the rotational axis. The results show the coexistence of confined and deconfined phases and are consistent with the concept of local temperature in rotating frames developed by Tolman and Ehrenfest.
Article
Astronomy & Astrophysics
Bing Sun, Jiachen An, Zhoujian Cao
Summary: This paper investigates the effect of gravitational constant variation on the propagation of gravitational waves. By employing two analytical methods, the study finds that variations in the gravitational constant result in amplitude and phase corrections for gravitational waves, and the time variation of the gravitational constant can be constrained through the propagation of gravitational waves.
Article
Astronomy & Astrophysics
Abdellah Touati, Zaim Slimane
Summary: This letter presents the first study of Hawking radiation as a tunneling process within the framework of non-commutative gauge theory of gravity. The non-commutative Schwarzschild black hole is reconstructed using the Seiberg-Witten map and the star product. The emission spectrum of outgoing massless particles is computed using the quantum tunneling mechanism. The results reveal pure thermal radiation in the low-frequency scenario, but a deviation from pure thermal radiation in the high-frequency scenario due to energy conservation. It is also found that noncommutativity enhances the correlations between successively emitted particles.
Article
Astronomy & Astrophysics
Shahar Hod
Summary: The travel times of light signals between two antipodal points on a compact star's surface are calculated for two different trajectories. It is shown that, for highly dense stars, the longer trajectory along the surface may have a shorter travel time as measured by asymptotic observers. A critical value of the dimensionless density-area parameter is determined for constant density stars to distinguish cases where crossing through the star's center or following a semi-circular trajectory on the surface has a shorter travel time as measured by asymptotic observers.
