Measurement of the X(3872) production cross section via decays to J/psi pi(+)pi(-) in pp collisions at root s=7 TeV
- Chatrchyan, S.
- Khachatryan, V.
- Sirunyan, A. M.
- Tumasyan, A.
- Adam, W.
- Aguilo, E.
- Bergauer, T.
- Dragicevic, M.
- Ero, J.
- Fabjan, C.
- Friedl, M.
- Fruhwirth, R.
- Ghete, V. M.
- Hoermann, N.
- Hrubec, J.
- Jeitler, M.
- Kiesenhofer, W.
- Knuenz, V.
- Krammer, M.
- Kraetschmer, I.
- Liko, D.
- Mikulec, I.
- Pernicka, M.
- Rabady, D.
- Rahbaran, B.
- Rohringer, C.
- Rohringer, H.
- Schoefbeck, R.
- Strauss, J.
- Taurok, A.
- Waltenberger, W.
- Wulz, C.E.
- Mossolov, V.
- Shumeiko, N.
- Gonzalez, J. Suarez
- Bansal, M.
- Bansal, S.
- Cornelis, T.
- De Wolf, E. A.
- Janssen,
DOIAbstract
The production of the X(3872) is studied in pp collisions at root s = 7TeV, using decays to J/psi pi(+)pi(-), where the J/psi decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8 fb(-1). The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < p(T) < 50 GeV and rapidity vertical bar y vertical bar < 1.2. The ratio of the X(3872) and (2S) cross sections times their branching fractions into J/psi pi(+)pi(-) is measured as a function of p T. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as ...
Add to ORKG