{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/28652"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/28652","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Measurement of B-hadron masses at CDF run II","abstract":"We measure the mass of b-hadrons in exclusive J/[psi]-decay modes. The correct momentum scale is established by the following steps: validate and quantify distortions or systematic effects in the Central Outer Tracker and Silicon Vertex Detector, apply and fine tune the energy loss corrections per track, and finally tune the magnetic field scale. With the momentum scale established, we find: m(B⁺) = 5279.10 ± 0.41 (stat) ± 0.36 (sys), m(B⁰) = 5279.63 ± 0.53 (stat) ± 0.33 (sys), m(B[s]⁰) = 5366.01 ± 0.73 (stat) ± 0.33 (sys), m(A[b]) = 5619.7 ± 1.2 (stat) ± 1.2 (sys) MeV/c². The measurements of the A[b] and B[s], masses are the current world best. The value of the A[b] mass is consistent with the CDF run I measurement resolving a discrepancy in the PDG average.","abstract_html":"We measure the mass of b-hadrons in exclusive J/[psi]-decay modes. The correct momentum scale is established by the following steps: validate and quantify distortions or systematic effects in the Central Outer Tracker and Silicon Vertex Detector, apply and fine tune the energy loss corrections per track, and finally tune the magnetic field scale. With the momentum scale established, we find: m(B⁺) = 5279.10 ± 0.41 (stat) ± 0.36 (sys), m(B⁰) = 5279.63 ± 0.53 (stat) ± 0.33 (sys), m(B[s]⁰) = 5366.01 ± 0.73 (stat) ± 0.33 (sys), m(A[b]) = 5619.7 ± 1.2 (stat) ± 1.2 (sys) MeV/c². The measurements of the A[b] and B[s], masses are the current world best. The value of the A[b] mass is consistent with the CDF run I measurement resolving a discrepancy in the PDG average.","abstract_has_math":false,"creators":["Korn, Andreas, 1972-"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Dept. of Physics.","school":null,"contributors":[],"advisors":["Christoph M.E. Paus."],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004","date_published":"2004","updated_at":"2026-07-22T22:21:03Z","subjects":["Physics."],"languages":["en_US"],"rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1721.1/28652","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Christoph M.E. Paus."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. Dept. of Physics."]},{"key":"dc:contributor.other","label":"Dc Contributor Other","values":["Massachusetts Institute of Technology. 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They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1721.1/28652"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.","Includes bibliographical references (leaves 127-133)."]},{"key":"dc:description.abstract","label":"Abstract","values":["We measure the mass of b-hadrons in exclusive J/[psi]-decay modes. The correct momentum scale is established by the following steps: validate and quantify distortions or systematic effects in the Central Outer Tracker and Silicon Vertex Detector, apply and fine tune the energy loss corrections per track, and finally tune the magnetic field scale. With the momentum scale established, we find: m(B⁺) = 5279.10 ± 0.41 (stat) ± 0.36 (sys), m(B⁰) = 5279.63 ± 0.53 (stat) ± 0.33 (sys), m(B[s]⁰) = 5366.01 ± 0.73 (stat) ± 0.33 (sys), m(A[b]) = 5619.7 ± 1.2 (stat) ± 1.2 (sys) MeV/c². The measurements of the A[b] and B[s], masses are the current world best. The value of the A[b] mass is consistent with the CDF run I measurement resolving a discrepancy in the PDG average."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Ph.D."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Measurement of B-hadron masses at CDF run II"]}]}],"canonical_facts":{"dc:contributor.advisor":["Christoph M.E. Paus."],"dc:contributor.department":["Massachusetts Institute of Technology. Dept. of Physics."],"dc:contributor.other":["Massachusetts Institute of Technology. Dept. of Physics."],"dc:creator":["Korn, Andreas, 1972-"],"dc:date.accessioned":["2005-09-27T17:31:29Z"],"dc:date.available":["2005-09-27T17:31:29Z"],"dc:date.issued":["2004"],"dc:description":["Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.","Includes bibliographical references (leaves 127-133)."],"dc:description.abstract":["We measure the mass of b-hadrons in exclusive J/[psi]-decay modes. The correct momentum scale is established by the following steps: validate and quantify distortions or systematic effects in the Central Outer Tracker and Silicon Vertex Detector, apply and fine tune the energy loss corrections per track, and finally tune the magnetic field scale. With the momentum scale established, we find: m(B⁺) = 5279.10 ± 0.41 (stat) ± 0.36 (sys), m(B⁰) = 5279.63 ± 0.53 (stat) ± 0.33 (sys), m(B[s]⁰) = 5366.01 ± 0.73 (stat) ± 0.33 (sys), m(A[b]) = 5619.7 ± 1.2 (stat) ± 1.2 (sys) MeV/c². The measurements of the A[b] and B[s], masses are the current world best. The value of the A[b] mass is consistent with the CDF run I measurement resolving a discrepancy in the PDG average."],"dc:description.degree":["Ph.D."],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/1721.1/28652"],"dc:language.iso":["en_US"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Physics."],"dc:title":["Measurement of B-hadron masses at CDF run II"],"dc:type":["Thesis"]},"updated_at":"2026-07-22T22:21:03Z"}