Publication
Search for anomalous production of highly boosted $Z$ bosons decaying to $\mu^+ \mu^-$ in proton-proton collisions at $\sqrt{s}=7$ TeV
| dc.contributor.author | CMS collaboration (2200 authors) | |
| dc.contributor.author | Hollar, Jonathan | |
| dc.contributor.author | Nayak, Aruna | |
| dc.contributor.author | Almeida, Nuno | |
| dc.contributor.author | Bargassa, Pedrame | |
| dc.contributor.author | David Tinoco Mendes, Andre | |
| dc.contributor.author | Faccioli, Pietro | |
| dc.contributor.author | Ferreira Parracho, Pedro Guilherme | |
| dc.contributor.author | Gallinaro, Michele | |
| dc.contributor.author | Seixas, Joao | |
| dc.contributor.author | Varela, Joao | |
| dc.contributor.author | Vischia, Pietro | |
| dc.contributor.author | Lloret Iglesias, Lara | |
| dc.contributor.author | Musella, Pasquale | |
| dc.contributor.author | Rodrigues Antunes, Joao | |
| dc.contributor.author | Silva, Pedro | |
| dc.contributor.author | Pela, Joao | |
| dc.contributor.author | Leonardo, Nuno | |
| dc.date.accessioned | 2019-02-03T21:16:08Z | |
| dc.date.available | 2019-02-03T21:16:08Z | |
| dc.date.issued | 2013-07-16 | |
| dc.date.updated | 2019-02-03T21:16:08Z | |
| dc.description.abstract | Results are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to dimuons. Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 5.0 inverse femtobarns recorded with the CMS detector. The shape of the observed transverse-momentum distribution of Z bosons is consistent with standard model expectations. Constraints are obtained on models predicting the production of excited quarks decaying via electroweak processes. Assuming a compositeness scale that is equal to the excited quark mass as well as transition coupling strengths between Z bosons and excited quarks that are equal to standard model couplings to quarks, masses of excited quarks below 1.94 TeV are excluded at the 95% confidence level. For excited quark production via a novel contact interactions, masses below 2.22 TeV are excluded, even if the excited quarks do not couple to gluons. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Phys.Lett. B722 (2013) 28-47; DOI 10.1016/j.physletb.2013.03.037 | |
| dc.identifier.uri | http://dx.doi.org/10.1016/j.physletb.2013.03.037 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26282 | |
| dc.language.iso | eng | |
| dc.title | Search for anomalous production of highly boosted $Z$ bosons decaying to $\mu^+ \mu^-$ in proton-proton collisions at $\sqrt{s}=7$ TeV | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |