Download or read book Measurement of the T bar T Cross Section At radical written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the t[bar t] cross section at[radical]s= 1.96 TeV is carried out on data samples of[approx]40 pb[sup -1] in dilepton channels (e[mu], ee and[mu][mu]) and lepton+jets channels using two complementary approaches: a fully topological analysis and a soft-muon-tag. Overall, 17 events are observed with an expected background of 6.5[+-] 0.6. This excess corresponds to an observation probability of three standard deviations and the measured t[bar t] cross section is:[sigma][sub p][bar p][yields] t[bar t]= 8.5[sub -3.6][sup+4.5] (stat)[sub -3.5][sup+6.3] (sys)[+-] 0.8 (lumi) pb.
Download or read book Measurement of the Ttbar Production Cross Section at S 1 2 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the t[bar t] production cross section in the lepton+jets channels with the D0 detector at [radical]s = 1.96 TeV using the lifetime-tagging techniques is presented. The t[bar t] cross section is estimated from the combination of the e+jets and [mu]+jets channels. The obtained result [sigma][sub tt][sup -] = 7.47 [sub -1.14][sup +1.22](stat)[sub -1.03][sup +1.65](syst) [+-] 0.49 (lumi) pb is consistent with the Standard Model expectation.
Download or read book Measurement of the t bar t Production Cross Section in p bar p Collisions at sqrt s written by and published by . This book was released on 2004 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the T bar T Cross Section at s written by and published by . This book was released on 2003 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the t{bar t} cross section at √s = 1.96 TeV is carried out on data samples of ≈40 pb−1 in dilepton channels (e?, ee and??) and lepton+jets channels using two complementary approaches: a fully topological analysis and a soft-muon-tag. Overall, 17 events are observed with an expected background of 6.5 ± 0.6. This excess corresponds to an observation probability of three standard deviations and the measured t{bar t} cross section is:?{sub p}{bar p}→ t{bar t} = 8.5{sub -3.6}{sup +4.5} (stat) {sub -3.5}{sup +6.3} (sys) ± 0.8 (lumi) pb.
Download or read book Zhongguo di shao shu min zu he min zu qu yu zi zhi written by Zhengxiang Chen and published by . This book was released on 1972 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the T Anti t Cross Section Using the Dimuon Channel in Ppbar Collisions at Sqrt s written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have measured the t[bar t] production cross section at [radical]s = 1.96 TeV using data collected by the D0 experiment at Fermilab. The integrated luminosity of the data set is 140 pb[sup -1] and a total of four candidate events are seen, with an expected background of 2.61 events. The measured cross section of [sigma][sub t[bar t]] = 11.1[sub -9.3][sup +22.1](stat.)[sub -4.5][sup +4.3](sys.) pb is in agreement with a NNLO calculation of 6.77 pb.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Materials Technology written by Robert J. Scancella and published by CRC Press. This book was released on 1994-01-01 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Top Physics written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the t{bar t} production cross section using 194 pb−1 of CDF II data using events with a high transverse momentum electron or muon, three or more jets, and missing transverse energy. The measurement assumes 100% t --> Wb branching fraction. Events consistent with t{bar t} decay are found by identifying jets containing heavy flavor semileptonic decays to muons. The dominant backgrounds are evaluated directly from the data. Based on 20 candidate events and an expected background of 9.5 " 1.1 events, we measure a production cross section of 5.3 " 3.3{sub -1.0}{sup +1.3} pb, in agreement with the standard model.
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Industrial Engineer written by and published by . This book was released on 1917 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Mechanics Devoted to Mechanical Civil Mining and Electrical Engineering written by and published by . This book was released on 1891 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanics written by and published by . This book was released on 1889 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Measuring Instruments and Measurements written by S.C. Bhargava and published by CRC Press. This book was released on 2012-12-27 with total page 1888 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, written for the benefit of engineering students and practicing engineers alike, is the culmination of the author's four decades of experience related to the subject of electrical measurements, comprising nearly 30 years of experimental research and more than 15 years of teaching at several engineering institutions. The unique feature of this book, apart from covering the syllabi of various universities, is the style of presentation of all important aspects and features of electrical measurements, with neatly and clearly drawn figures, diagrams and colour and b/w photos that illustrate details of instruments among other things, making the text easy to follow and comprehend. Enhancing the chapters are interspersed explanatory comments and, where necessary, footnotes to help better understanding of the chapter contents. Also, each chapter begins with a "recall" to link the subject matter with the related science or phenomenon and fundamental background. The first few chapters of the book comprise "Units, Dimensions and Standards"; "Electricity, Magnetism and Electromagnetism" and "Network Analysis". These topics form the basics of electrical measurements and provide a better understanding of the main topics discussed in later chapters. The last two chapters represent valuable assets of the book, and relate to (a) "Magnetic Measurements", describing many unique features not easily available elsewhere, a good study of which is essential for the design and development of most electric equipment – from motors to transformers and alternators, and (b) "Measurement of Non-electrical Quantities", dealing extensively with the measuring techniques of a number of variables that constitute an important requirement of engineering measurement practices. The book is supplemented by ten appendices covering various aspects dealing with the art and science of electrical measurement and of relevance to some of the topics in main chapters. Other useful features of the book include an elaborate chapter-by-chapter list of symbols, worked examples, exercises and quiz questions at the end of each chapter, and extensive authors' and subject index. This book will be of interest to all students taking courses in electrical measurements as a part of a B.Tech. in electrical engineering. Professionals in the field of electrical engineering will also find the book of use.
Download or read book Circulars written by Johns Hopkins University and published by . This book was released on 1889 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1964 with total page 2084 pages. Available in PDF, EPUB and Kindle. Book excerpt:
