X 0(2900) and X 1(2900): Hadronic Molecules or Compact Tetraquarks
نویسندگان
چکیده
منابع مشابه
Tetraquarks, hadronic molecules, meson-meson scattering, and disconnected contributions in lattice QCD
Feng-Kun Guo,* Liuming Liu, Ulf-G. Meißner, and Ping Wang Helmholtz-Institut für Strahlenund Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany Institut für Kernphysik, Institute for Advanced Simulation, and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany Institute of High Energy Physics and Theoretical Physics Center...
متن کامل$mathcal{X}$-injective and $mathcal{X}$-projective complexes
Let $mathcal{X}$ be a class of $R$-modules. In this paper, we investigate ;$mathcal{X}$-injective (projective) and DG-$mathcal{X}$-injective (projective) complexes which are generalizations of injective (projective) and DG-injective (projective) complexes. We prove that some known results can be extended to the class of ;$mathcal{X}$-injective (projective) and DG-$mathcal{X}$-injective ...
متن کاملLOW-x HADRONIC FINAL STATES AT HERA
Amongst the most interesting issues of HERA physics is QCD in the newly accessible regime of small Bjorken x. The observed rise of the structure function F2 towards small x suggests a strong increase of the parton density in the proton, but what is its dynamical origin? Is BFKL [1] dynamics at work, or is conventional DGLAP [2] evolution sufficient? Complementary measurements of the hadronic fi...
متن کاملUltra-compact (X-ray) binaries
A short review of ultra-compact binaries, focused on ultra-compact X-ray binaries, is followed by a discussion of recent results of our VLT campaign to obtain optical spectra of (candidate) ultra-compact X-ray binaries. We find evidence for carbon/oxygen as well as helium/nitrogen discs and no evidence for (traces) of hydrogen. This suggests that the donors in the observed systems are white dwa...
متن کاملCompact X-ray sources: X-ray from self-reflection
X-ray has been an important scientific tool ever since its discovery in the 1890s. X-ray used to be generated by synchrotron machines, which are large and expensive devices. However, laser-based particle acceleration offers a way to reduce the size and cost of hard-X-ray sources. Scientists have now developed a simple scheme that produces a bright flash of hard-X-rays by using a single laser pu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chinese Physics Letters
سال: 2020
ISSN: 0256-307X,1741-3540
DOI: 10.1088/0256-307x/37/10/101201