Evidence for Z(c)(+/-)(3900) in semi-inclusive decays of b-flavored hadrons

• Published in: Physical review. D 2018-09, Vol.98 (5)
• Main Authors: Askew, A., Avila, C., Badaud, F., Bazterra, V, Bellantoni, L., Bernhard, R., Besancon, M., Blazey, G., Boline, D., Borysova, M., Buehler, M., Burdin, S., Camacho-Perez, E., Castilla-Valdez, H., Chapon, E., Clutter, J., Cooper, W. E., Cuth, J., Das, A., DeVaughan, K., Eads, M., Evdokimov, V. N., Feng, L., Ferbel, T., Fisk, H. E., Fox, H., Fuess, S., Garbincius, P. H., Gerber, C. E., Gershtein, Y., Ginther, G., Gogota, O., Grohsjean, A., Hauptman, J. M., Hedin, D., Hegab, H., Heinson, A. P., Heintz, U., Hensel, C., Hoeneisen, B., Holzbauer, J. L., Howley, I, Ilchenko, Y., Ito, A. S., Jayasinghe, A., Johnson, M., Jonsson, P., Jung, A. W., Kajfasz, E., Kharchilava, A., Kozelov, A. , V, Lebrun, P., Lee, W. M., Li, H., Li, Q. Z., Lincoln, D., Linnemann, J., Liu, H., Lobodenko, A., Malyshev, V. L., Mansour, J., McCarthy, R., Merkin, M., Negret, J. P., Nguyen, H. T., Orduna, J., Parihar, V, Parua, N., Patwa, A., Perfilov, M., Peters, Y., Podstavkov, V. M., Prewitt, M., Rizatdinova, F., Rominsky, M., Ross, A., Sawyer, L., Schamberger, R. D., Schellman, H., Sekaric, J., Shary, V, Slattery, P., Snow, J., Soustruznik, K., Stefaniuk, N., Uvarov, L., Uzunyan, S., van Leeuwen, W. M., Varelas, N., Varnes, E. W., Vasilyev, I. A., Verkheev, A. Y., Vokac, P., Wahl, H. D., Wilson, G. W., Ye, Z., Yip, K., Zhao, T. G., Zielinski, M., Zivkovic, L.
• Format: Article
• Language: English
• ISSN: 2470-0029; 2470-0010
• DOI: 10.1103/PhysRevD.98.052010

We present evidence for the exotic charged charmoniumlike state Z(c)(+/-)(3900) decaying to J/psi pi(+/-) in semi-inclusive weak decays of b-flavored hadrons. The signal is correlated with a parent J/psi pi(+)pi(-) system in the invariant-mass range 4.2-4.7 GeV that would include the exotic structure Y(4260). The study is based on 10.4 fb(-1) of p (p) over bar collision data collected by the D0 experiment at the Fermilab Tevatron collider.