Abazov, VM;
Abbott, B;
Acharya, BS;
Adams, M;
Adams, T;
Agnew, JP;
Alexeev, GD;
... Zivkovic, L; + view all
(2019)
Properties of Z±c(3900) produced in pp¯ collisions.
Physical Review D
, 100
(1)
, Article 012005. 10.1103/PhysRevD.100.012005.
Preview |
Text
PhysRevD.100.012005.pdf - Published Version Download (426kB) | Preview |
Abstract
We study the production of the exotic charged charmoniumlike state Z ± c ( 3900 ) in p ¯ p collisions through the sequential process ψ ( 4260 ) → Z ± c ( 3900 ) π ∓ , Z ± c ( 3900 ) → J / ψ π ± . Using the subsample of candidates originating from semi-inclusive weak decays of b -flavored hadrons, we measure the invariant mass and natural width to be M = 3902.6 + 5.2 − 5.0 ( stat ) + 3.3 − 1.4 ( syst ) MeV and Γ = 3 2 + 28 − 21 ( stat ) + 26 − 7 ( syst ) MeV , respectively. We search for prompt production of the Z ± c ( 3900 ) through the same sequential process. No significant signal is observed, and we set an upper limit of 0.70 at the 95% credibility level on the ratio of prompt production to the production via b -hadron decays. The study is based on 10.4 f b − 1 of p ¯ p collision data collected by the D0 experiment at the Fermilab Tevatron collider.
| Type: | Article |
|---|---|
| Title: | Properties of Z±c(3900) produced in pp¯ collisions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.100.012005 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.100.012005 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
| Keywords: | Particle production, particles & fields |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10083485 |
Archive Staff Only
 |
View Item |
