439 documents found, page 1 of 44
Measurement of the Λ b 0 lifetime in the decay Λ b 0 → J/ψΛ 0 with the D0 detector
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Agelou, M.; Agram, J. L.; Ahn, S. H.; Ahsan, M.; Alexeev, G. D.Made available in DSpace on 2022-04-28T19:57:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-03-18; We present measurements of the Λ b 0 lifetime in the exclusive decay channel Λ b 0 → J/ψΛ 0with J/ψ → μ +μ - and Λ 0 → pπ -, the B 0 lifetime in the decay B 0 → J/ψ/K s 0 with J/ ψ → μ + μ - and K s 0 → π + π -, and the ratio of these lifetimes. The analysis is based on approximately 250 pb -1 of data r...
Evidence for s-channel single top quark production in pp collisions at √s = 1.9...
Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Agnew, J. P.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Askew, A.; Atkins, S.Made available in DSpace on 2022-04-28T18:58:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-10-08; We present measurements of the cross sections for the two main production modes of single top quarks in pp- collisions at s=1.96 TeV in the Run II data collected with the D0 detector at the Fermilab Tevatron Collider, corresponding to an integrated luminosity of 9.7 fb-1. The s-channel cross section is ...
Precise measurement of the top quark mass in dilepton decays using optimized ne...
Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Agnew, J. P.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Askew, A.; Atkins, S.Made available in DSpace on 2022-04-28T19:01:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-10; We measure the top quark mass in dilepton final states of tt events in pp collisions at √s = 1.96 TeV, using data corresponding to an integrated luminosity of 9.7 fb-1 at the Fermilab Tevatron Collider. The analysis features a comprehensive optimization of the neutrino weighting method to minimize the s...
Searches for new physics using the tt̄ invariant mass distribution in pp collis...
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.Made available in DSpace on 2022-04-29T08:49:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-11-21; Searches for anomalous top quark-antiquark production are presented, based on pp collisions at √s=8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb-1, were collected with the CMS detector at the LHC. The observed tt̄ invariant mass spectrum is found to be compatible with the standard...
Search for top squarks in r-parity-violating supersymmetry using three or more ...
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.Made available in DSpace on 2022-04-29T09:00:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-11-25; National Natural Science Foundation of China; Deutsche Forschungsgemeinschaft; Department of Atomic Energy, Government of India Technology; U.S. Department of Energy; National Science Foundation; A search for anomalous production of events with three or more isolated leptons and bottom-quark jets produc...
Rapidity distributions in exclusive Z+jet and γ+jet events in pp collisions at ...
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.Made available in DSpace on 2022-04-29T09:12:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-12-23; Rapidity distributions are presented for events containing either a Z boson or a photon with a single jet in proton-proton collisions produced at the CERN LHC. The data, collected with the CMS detector at √s=7 TeV, correspond to an integrated luminosity of 5.0 fb-1. The individual rapidity distributions...
Search for the standard model Higgs boson produced in association with a W or a...
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.Made available in DSpace on 2022-04-29T09:23:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-01-21; National Natural Science Foundation of China; Research Promotion Foundation; A search for the standard model Higgs boson (H) decaying to bb̄ when produced in association with a weak vector boson (V) is reported for the following channels: W(μν)H, W(eν)H, W(τν)H, Z(μμ)H, Z(ee)H, and Z(νν)H. The search is...
Search for top squark and higgsino production using diphoton higgs boson decays
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.Made available in DSpace on 2022-04-29T09:35:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-04-25; Science and Technology Facilities Council; Results are presented of a search for a natural supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top quark (the top squark) and the Higgs boson (Higgsino) are accessible. Events are examine...
Search for top-quark partners with charge 5/3 in the same-sign dilepton final s...
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.Made available in DSpace on 2022-04-29T09:46:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-04-30; Canadian Anesthesiologists' Society; Massachusetts Department of Fish and Game; U.S. Department of Energy; Office of Fuel Cycle Technologies; Human Growth Foundation; Hispanics in Philanthropy; Latvian Academy of Sciences; Mountain Equipment Co-op; Neurosurgical Research Foundation; National Science Cou...
Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at...
Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.Made available in DSpace on 2022-04-29T09:58:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-04-11; Measurements are presented by the CMS Collaboration at the Large Hadron Collider (LHC) of the higher-order harmonic coefficients that describe the azimuthal anisotropy of charged particles emitted in sNN=2.76 TeV PbPb collisions. Expressed in terms of the Fourier components of the azimuthal distribution...