We report the observation of the X(3872) in the J/psi pi+pi- channel, with J/psi decaying to mu+mu- in p-p(bar) collisions at sqrt(s) = 1.96 TeV. Using approximately 230 pb^-1 of data collected with the Run II D0 detector, we observe 522 +/- 100 X(3872) candidates. The mass difference between the X(3872) state and the J/psi is measured to be 774.9 +/- 3.1 (stat.) +/- 3.0 (syst.) MeV/c^2. We have investigated the production and decay characteristics of the X(3872), and find them to be similar to those of the psi(2S) state
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi+ pi- using...
International audienceWe present an analysis of the mass of the X(3872) reconstructed via its decay ...
The production of the X(3872) is studied in pp collisions at sqrt(s) = 7 TeV, using decays to J/psi ...
D0We report the observation of the X(3872) in the J/psi pi+pi- channel, with J/psi decaying to mu+mu...
We report the observation of the X(3872) in the J/psipi(+)pi(-) channel, with J/psi decaying to mu(+...
We report the observation of the X(3872) in the J/ψ π<SUP>+</SUP>π<SUP>-</SUP> channe...
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi++ pi+- usi...
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi(+)pi(-) us...
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi(+)pi(-) us...
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi+ pi- using...
International audienceWe present an analysis of the mass of the X(3872) reconstructed via its decay ...
The production of the X(3872) is studied in pp collisions at sqrt(s) = 7 TeV, using decays to J/psi ...
D0We report the observation of the X(3872) in the J/psi pi+pi- channel, with J/psi decaying to mu+mu...
We report the observation of the X(3872) in the J/psipi(+)pi(-) channel, with J/psi decaying to mu(+...
We report the observation of the X(3872) in the J/ψ π<SUP>+</SUP>π<SUP>-</SUP> channe...
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi++ pi+- usi...
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi(+)pi(-) us...
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi(+)pi(-) us...
We present an analysis of the mass of the X(3872) reconstructed via its decay to J/psi pi+ pi- using...
International audienceWe present an analysis of the mass of the X(3872) reconstructed via its decay ...
The production of the X(3872) is studied in pp collisions at sqrt(s) = 7 TeV, using decays to J/psi ...