dc.contributor.author |
Ανδρεαδάκη, Εμμανουέλα
|
el |
dc.date.accessioned |
2018-07-05T07:44:21Z |
|
dc.date.available |
2018-07-05T07:44:21Z |
|
dc.date.issued |
2018-07-05 |
|
dc.identifier.uri |
https://dspace.lib.ntua.gr/xmlui/handle/123456789/47211 |
|
dc.identifier.uri |
http://dx.doi.org/10.26240/heal.ntua.8313 |
|
dc.rights |
Default License |
|
dc.subject |
jets |
el |
dc.subject |
top quark |
el |
dc.subject |
high energy |
el |
dc.subject |
hadronic |
el |
dc.subject |
cross-section |
el |
dc.subject |
ενεργός διατομή |
el |
dc.subject |
κουάρκ |
el |
dc.subject |
αδρονικό |
el |
dc.subject |
φυσική υψηλών ενεργειών |
el |
dc.subject |
τοπ κουάρκ |
el |
dc.title |
Μέτρηση ενεργού διατομής παραγωγής ζευγών top-antitop quark με τη βοήθεια αδρονικών πιδάκων μεγάλης εγκάρσιας ορμής στο πείραμα CMS |
el |
dc.contributor.department |
Φυσική και |
el |
heal.type |
masterThesis |
|
heal.classification |
ΦΥΣΙΚΗ ΣΤΟΙΧΕΙΩΔΩΝ ΣΩΜΑΤΙΔΙΩΝ ΚΑΙ ΠΕΔΙΩΝ |
el |
heal.classificationURI |
http://data.seab.gr/concepts/4380b93c5f9e9e252ac9ac548449d65f955603c4 |
|
heal.language |
en |
|
heal.access |
free |
|
heal.recordProvider |
ntua |
el |
heal.publicationDate |
2018-05-18 |
|
heal.abstract |
This note presents a first measurement of the top quark pair production cross section in the fully hadronic decay channel at a center-of-mass energy of √ s = 13 TeV using data corresponding to an integrated luminosity of 3.7 fb−1 taken with the CMS detector. The cross-section is determined from an unbinned maximum likelihood fit to the reconstructed top quark mass. The reconstruction of ttbar candidates is performed after a cut-based event selection using a kinematic fit. A data-driven technique is used to estimate the dominant background from QCD multijet production. The cross-section measurement yields 𝜎𝑖𝑛𝑐𝑙=572±15(𝑠𝑡𝑎𝑡)−48+126(𝑠𝑦𝑠𝑡)+15(𝑙𝑢𝑚𝑖) [𝑝𝑏]. This result is consistent with similar measurements in boosted topologies and within the Standard Model predictions. |
en |
heal.advisorName |
Κουσουρής, Κωνσταντίνος |
el |
heal.committeeMemberName |
Κουσουρής, Κωνσταντίνος |
el |
heal.committeeMemberName |
Τσιπολίτης, Γεώργιος |
el |
heal.committeeMemberName |
Τράκας, Νικόλαος |
el |
heal.academicPublisher |
Σχολή Εφαρμοσμένων Μαθηματικών και Φυσικών Επιστημών |
el |
heal.academicPublisherID |
ntua |
|
heal.numberOfPages |
100 |
|
heal.fullTextAvailability |
true |
|