{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/84093"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/84093","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"Differential Jet Production Cross Section Measurement in Z + Jet Events from Proton - Proton Collisions at √s=13 TeV using the CMS Detector at LHC","abstract":"Ph.D.","abstract_html":"Ph.D.","abstract_has_math":false,"creators":["Parker, Ashley; 0000-0002-9421-3335"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Rappoccio, Salvatore","Physics"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-06-21T15:47:51Z","date_published":"2022-06-21T15:47:51Z","updated_at":"2026-07-27T19:05:30Z","subjects":["physics"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/84093","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Rappoccio, Salvatore","Physics"]},{"key":"dc:creator","label":"Author","values":["Parker, Ashley; 0000-0002-9421-3335"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-06-21T15:47:51Z","2020"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["physics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/84093"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ph.D.","The Standard Model (SM) of particle physics, while describing our universe well on many scales, has yet to be precisely verified in all energy regimes. Recent theoretical advances in higher order perturbative QCD calculations have provided a way to compare the standard model's predictions to precision measurements of data and simulation. Within this dissertation, I present a measurement of the double differential jet production cross section as a function of the jet mass and transverse momentum. The measurement is presented in events with a Z + Jet topology, with and without soft radiation included in the jet. The removal of the soft radiation is done using a jet \"grooming\" algorithm. Studying Z + jet events will yield a light quark enriched jet sample, which has not yet been studied at √s=13 TeV. Comparing groomed and ungroomed jets will allow us to better understand the jet mass in all energy regimes, since the groomed jets will have varying amounts of soft and collinear radiation with respect to the ungroomed counterpart. For ungroomed jets, leading-order and next-to-leading order QCD Monte Carlo event generator program simulations are found to predict the jet mass spectrum in the data reasonably well, with some disagreement at very low masses. For groomed jets, the agreement between the simulation and the data improves overall, and extends lower in jet mass due to the removal of soft and colinear portions of the jet. Ultimately, these measurements will be used to tune Monte Carlo event generators, producing more accurate parton showering simulations, leading to tighter constraint of backgrounds in future searches for new physics.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Differential Jet Production Cross Section Measurement in Z + Jet Events from Proton - Proton Collisions at √s=13 TeV using the CMS Detector at LHC"]}]}],"canonical_facts":{"dc:contributor":["Rappoccio, Salvatore","Physics"],"dc:creator":["Parker, Ashley; 0000-0002-9421-3335"],"dc:date":["2022-06-21T15:47:51Z","2020"],"dc:description":["Ph.D.","The Standard Model (SM) of particle physics, while describing our universe well on many scales, has yet to be precisely verified in all energy regimes. Recent theoretical advances in higher order perturbative QCD calculations have provided a way to compare the standard model's predictions to precision measurements of data and simulation. Within this dissertation, I present a measurement of the double differential jet production cross section as a function of the jet mass and transverse momentum. The measurement is presented in events with a Z + Jet topology, with and without soft radiation included in the jet. The removal of the soft radiation is done using a jet \"grooming\" algorithm. Studying Z + jet events will yield a light quark enriched jet sample, which has not yet been studied at √s=13 TeV. Comparing groomed and ungroomed jets will allow us to better understand the jet mass in all energy regimes, since the groomed jets will have varying amounts of soft and collinear radiation with respect to the ungroomed counterpart. For ungroomed jets, leading-order and next-to-leading order QCD Monte Carlo event generator program simulations are found to predict the jet mass spectrum in the data reasonably well, with some disagreement at very low masses. For groomed jets, the agreement between the simulation and the data improves overall, and extends lower in jet mass due to the removal of soft and colinear portions of the jet. Ultimately, these measurements will be used to tune Monte Carlo event generators, producing more accurate parton showering simulations, leading to tighter constraint of backgrounds in future searches for new physics.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/84093"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["physics"],"dc:title":["Differential Jet Production Cross Section Measurement in Z + Jet Events from Proton - Proton Collisions at √s=13 TeV using the CMS Detector at LHC"],"dc:type":["Text","Dissertation"]},"updated_at":"2026-07-27T19:05:30Z"}