Search results for "charm [mass]"
showing 10 items of 29 documents
Strange and charm mesons at FAIR
2010
Presented at the XXXI Mazurian Lakes Conference on Physics, Piaski, Poland, August 30–September 6, 2009.
Heavy quark spin symmetry and SU(3)-flavour partners of the X (3872)
2013
In this work, an Effective Field Theory (EFT) incorporating light SU(3)-flavour and heavy quark spin symmetries is used to describe charmed meson-antimeson bound states. At Lowest Order (LO), this means that only contact range interactions among the heavy meson and antimeson fields are involved. Besides, the isospin violating decays of the X(3872) will be used to constrain the interaction between the D and a (D) over bar* mesons in the isovector channel. Finally, assuming that the X(3915) and Y(4140) resonances are D* (D) over bar* and D-s* (D) over bar (s)* molecular states, we can determine the four Low Energy Constants (LECs) of the EFT that appear at LO and, therefore, the full spectrum…
Multiquark description of the D-sJ(2860) and D-sJ(2700)
2009
Within a theoretical framework that accounts for all open-charm mesons, including the D-0*(2308), the D-sJ*(2317), and the D-sJ(2460), we analyze the structure and explore possible quantum number assignments for the D-sJ(2860) and the D-sJ(2700) mesons reported by BABAR and Belle Collaborations. The open-charm sector is properly described if considered as a combination of conventional quark-antiquark states and four-quark components. All negative parity and 2(+) states can be understood in terms only of q (q) over bar components, however the description of the 0(+) and 1(+) mesons is improved whenever the mixing between two- and four-quark configurations is included. We analyze all possible…
"Table 21" of "Search for Scalar-Charm Pair Production in pp Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector"
2015
Acceptance (flavour-blind) for signal points in the signal region with $m_{CT}>200$ GeV.
"Table 22" of "Search for Scalar-Charm Pair Production in pp Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector"
2015
Acceptance (flavour-blind) for signal points in the signal region with $m_{CT}>250$ GeV.
"Table 20" of "Search for Scalar-Charm Pair Production in pp Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector"
2015
Acceptance (flavour-blind) for signal points in the signal region with $m_{CT}>150$ GeV.
"Table 8" of "Search for Scalar-Charm Pair Production in pp Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector"
2015
95% C.L. observed exclusion contour for the $m_{CT}>150 $ GeV region.
"Table 7" of "Search for Scalar-Charm Pair Production in pp Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector"
2015
95% C.L. expected exclusion contour for the $m_{CT}>150 $ GeV region.
"Table 3" of "Search for Scalar-Charm Pair Production in pp Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector"
2015
95% C.L. expected exclusion contour for all regions combined.
"Table 14" of "Search for Scalar-Charm Pair Production in pp Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector"
2015
95% C.L. observed exclusion contour for the $m_{CT}>250 $ GeV region.