Results 71 to 80 of about 48,916 (267)

Inverse moment of the B s -meson distribution amplitude from QCD sum rule

Journal of High Energy Physics, 2020
We derive a QCD sum rule for the inverse moment of the B s -meson light-cone distribution amplitude in HQET. Within this method, the SU(3) f l symmetry violation is traced to the strange quark mass and to the difference between strange and nonstrange ...
Alexander Khodjamirian, Rusa Mandal, Thomas Mannel   +2 more
doaj   +1 more source

Are rotating strange quark stars good sources of gravitational waves?

, 2003
We study the viscosity driven (Jacobi-like) bar mode instability of rapidly rotating strange stars in general relativity. A triaxial, "bar shaped" compact star could be an efficient source of continuous wave gravitational radiation in the frequency range
Alcock, Amsterdamski, Andersson, Andersson, Andersson, Bonazzola, Bonazzola, Bonazzola, Bonazzola, Bulik, Bulik, Cook, D. Gondek-Rosińska, Dey, Di Girolamo, E. Gourgoulhon, Farhi, Friedman, Friedman, Friedman, Friedman, Fujimoto, Gondek-Rosinska, Gondek-Rosinska, Gondek-Rosinska, Gondek-Rosinska, Gourgoulhon, Haensel, Haensel, Heiselberg, Ho, Kaaret, Kluzniak, Kluzniak, Kluzniak, Kluzniak, Kokkotas, Komatsu, Lai, Lindblom, Madsen, Madsen, Miller, Morsink, Nozawa, P. Haensel, Papaloizou, Rezzolla, Roberts, Saijo, Shapiro, Shibata, Shibata, Sibgatulin, Stergioulas, Stergioulas, Stergioulas, Stergioulas, Wagoner, Wagoner, Walter, Witten, Zdunik, Zdunik, Zdunik, Zdunik, Zdunik, Zdunik, Zhang   +68 more
core   +1 more source

Maximum Mass Limit of Generalized MIT Compact Star: A Theoretical Study of Thin Shell Dynamics and Gravitational Lensing

Fortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract In this study, the properties, equilibrium, and stability of compact objects within the framework of teleparallel gravity with the generalized MIT bag model are investigated. By incorporating the modified field equations, the influence of the generalized bag constant on the structure and physical characteristics of quark stars and neutron ...
Sayantan Ghosh, Sneha Pradhan, Pradyumn Kumar Sahoo   +2 more
wiley   +1 more source

Strange matter in compact stars

EPJ Web of Conferences, 2018
We discuss possible scenarios for the existence of strange matter in compact stars. The appearance of hyperons leads to a hyperon puzzle in ab-initio approaches based on effective baryon-baryon potentials but is not a severe problem in relativistic mean ...
Klähn Thomas, Blaschke David B.
doaj   +1 more source

Phase diagram of dense neutral three-flavor quark matter

, 2004
We study the phase diagram of dense, locally neutral three-flavor quark matter as a function of the strange quark mass, the quark chemical potential, and the temperature, employing a general nine-parameter ansatz for the gap matrix.
Alford, Alford, Alford, Alford, Alford, Alford, Alford, Alford, Bailin, Barrois, Bedaque, Berges, Blaschke, Bowers, Bowers, Bowers, Brown, Buballa, Buballa, Buballa, Carter, Casalbuoni, Cornwall, Dirk H. Rischke, Frautschi, Fugleberg, Gastineau, Giannakis, Giannakis, Giannakis, Giannakis, Glashow, Gubankova, Hong, Hong, Hsu, Huang, Huang, Igor A. Shovkovy, Iida, Iida, Iida, Iida, Iida, Kaplan, Kapusta, Kryjevski, Liao, Matsuura, Miransky, Mishra, Nambu, Nambu, Neumann, Pisarski, Pisarski, Rajagopal, Rajagopal, Rapp, Reddy, Ren, Rischke, Rüster, Salam, Schmitt, Schrieffer, Schäfer, Schäfer, Schäfer, Schäfer, Shovkovy, Shovkovy, Shovkovy, Son, Stefan B. Rüster, Steiner, Voskresensky, Wang, Weinberg   +78 more
core   +1 more source

Strange Tribaryons as Nona-Quark States [PDF]

Progress of Theoretical Physics, 2005
Strange tribaryons as nona-quark (9 quark) states is studied to describe the S=-1 resonance S^0(3115) recently discovered in the reaction K- + ^4 He -> S^0 + p. We have identified S^0(3115) as a member of the flavor 27-plet, in particular, (F_{flavor},I_{isospin},J_{spin})=(27,1,1/2) or (27,1,3/2).
Maezawa, Yuu, Hatsuda, Tetsuo, Sasaki, Shoichi   +2 more
openaire   +2 more sources

Generation of Electric Current by Magnetic Field at the Boundary: Quantum Scale Anomaly Versus Semiclassical Meissner Current Outside of the Conformal Limit

Advanced Physics Research, Volume 4, Issue 7, July 2025.
The paper discusses the role of scale anomaly in generating edge electric currents via the scale magnetic effect in scalar electrodynamics. Although the boundary electric current is much weaker than the Meissner current induced in superconducting materials, the scale anomaly can enhance conductivity near the boundary of the material.
Maxim Chernodub, Vladimir Goy, Alexander Molochkov   +2 more
wiley   +1 more source

Exploring S-wave threshold effects in QCD: A heavy-light approach

Physics Letters B, 2020
QCD exhibits complex dynamics near S-wave two-body thresholds. For light mesons, we see this in the failure of quark models to explain the f0(500) and K0⁎(700) masses. For charmonium, an unexpected X(3872) state appears at the open charm threshold.
Estia Eichten, Ciaran Hughes
doaj   +1 more source

Non-perturbative structure of the polarized nucleon sea

, 2003
We investigate the flavour and quark-antiquark structure of the polarized nucleon by calculating the parton distribution functions of the nucleon sea using the meson cloud model. We find that the SU(2) flavor symmetry in the light antiquark sea and quark-
A. I. Signal, A.I. Signal, A.I. Signal, A.W. Schreiber, A.W. Schreiber, A.W. Thomas, A.W. Thomas, B. Adeva, B. Adeva, B. Adeva, B. Adeva, B. Dressler, B. Holzenkamp, C. Boros, D.I. Diakonov, D.I. Diakonov, E.A. Hawker, F.G. Cao, F.G. Cao, F.G. Cao, Fu-Guang Cao, G.T. Garvey, H. Holtmann, J. Ashman, J. Ashman, J. Blumlein, J. Ellis, J. Ellis, K. Abe, K. Ackerstaff, M. Arneodo, M. Arneodo, M. Fukugita, M. Gluck, M. Glück, M. Hirai, P. Amaudraz, P.L. Anthony, P.V. Pobylitsa, R. Machleidt, R.S. Towell, S. Kumano, S.J. Dong, T. DeGrand, W. Melnitchouk, W. Melnitchouk, Y. Goto   +46 more
core   +1 more source

Light Quark Masses with Dynamical Wilson Fermions [PDF]

, 1997
We determine the masses of the light and the strange quarks in the $\bar{MS}$-scheme using our high-statistics lattice simulation of QCD with dynamical Wilson fermions. For the light quark mass we find $m^{light}_{\bar{MS}}(2 GeV) = 2.7(2) MeV$, which is
A Spitz, Allton, Allton, Bhattacharya, Bijnens, Conti, G Ritzenhöfer, G Siegert, Gough, Gupta, Güsken, H Hoeber, J Viehoff, K Schilling, Lepage, Leutwyler, Mackenzie, Martinelli, N Eicker, P Lacock, P Ueberholz, S Güsken, Th Lippert, U Glässner   +23 more
core   +3 more sources