1,727,407 research outputs found
B'nai B'rith. Peabody Lodge No. 2765 (Peabody, Mass.) records, undated, 1959-1985.
The B’nai B’rith Peabody Lodge No. 2765 was founded in 1969 as a local chapter of the larger B’nai B’rith International, which advocates for the Jewish people and works to combat anti-Semitism. The Peabody Lodge engaged in a variety of service and charitable activities in the Peabody area. This collection contains awards, correspondence, photographs, a scrapbook, and other miscellaneous materials.This collection is located at the American Jewish Historical Society located in Boston. For information on accessing collections at AJHS Boston please visit their website at: http://www.ajhsboston.org/index.htm.Finding Aid available in Reading Room and on Internet.Donated by the Jewish Heritage Center of the North Shore in 2013.Published citations should take the following form: Identification of item, date (if known); B’nai B’rith Peabody Lodge No. 2765 Records; I-576; box number; folder number; American Jewish Historical Society, New York, NY, and Boston, MA
Experimental determination of the isospin of
International audienceWe report an experimental determination of the isospin of using 980 fb data in the annihilation around GeV collected by the Belle detector located at the KEKB collider. The isospin partners are searched for in the channels, and no evidence was obtained. Thus the isospin is determined to be zero, and the particle is established to be a
The spin-parity study of the Lambda_c(2765)+ in Belle
학위논문(박사)--서울대학교 대학원 :자연과학대학 물리·천문학부,2015. 8. 김선기.The Λ(1405) resonance is difficult to describe in terms of an ordinary three quark state. One promising explanation is that Λ(1405) actually consists of two poles which couple to the K? N and πΣ channel, respectively This overlap might
be separated in charm sector so that we can actually find two states, since mass difference between πΣc and DN is larger than in the strange sector. Λc(2593)+ has the same spin-parity as the Λ(1405), and can be considered as the πΣc resonance. A corresponding DN bound state candidate is the Λc(2765)+, whose spin-parity is yet unknown.
We use the Belle experiment full data to assign spin and parity of the Λc(2765)+. We report the angular distribution study in Λc(2765)+? > Σc(2455)π channel and Λc(2765)+? > Σc(2520)π channel for spin determination. We also report the study of the branching fraction for Λc(2765)+? > Σc(2455)/Σc(2520)π decay to find the parity with heacy quark symmetry. As a result, the spin of the Λc(2765)+ is determined for 1/2 and parity is detemined for +.Contents
Abstract i
Chapter 1 Introduction 1
1.1 Λc(2765)+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Λ(1405). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2.1 Λ(1405) in experiment. . . . . . . . . . . . . . . . . . . . 6
1.2.2 Theoretical aspect of the Λ(1405). . . . . . . . . . . . . . 12
1.2.3 KN? -πΣ in charm sector (DN-πΣc). . . . . . . . . . . . . 15
1.3 Object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Chapter 2 B-FACTORY 17
2.1 KEKB storage ring . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.2 Physical requirement . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.2.1 Asymmetic energy collision . . . . . . . . . . . . . . . . . 19
2.2.2 High Luminosity . . . . . . . . . . . . . . . . . . . . . . . 20
2.2.3 Small Beam Energy Spread . . . . . . . . . . . . . . . . . 20
2.2.4 Energy Range . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.2.5 Accelerator Design . . . . . . . . . . . . . . . . . . . . . . 22
2.2.6 Performance . . . . . . . . . . . . . . . . . . . . . . . . . 23
Chapter 3 The Belle Detector 27
3.1 Silicon Vertex Detector (SVD) . . . . . . . . . . . . . . . . . . . 28
3.1.1 Double-sided Silicon Sensor . . . . . . . . . . . . . . . . 29
3.1.2 Mechanical structure . . . . . . . . . . . . . . . . . . . . 29
3.1.3 Front-end electronics . . . . . . . . . . . . . . . . . . . . 30
3.1.4 Back-end electronics . . . . . . . . . . . . . . . . . . . . 34
3.1.5 SVD DAQ system . . . . . . . . . . . . . . . . . . . . . 34
3.1.6 Monitor system . . . . . . . . . . . . . . . . . . . . . . . 35
3.1.7 Performance . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.1.8 Central Drift Chamber (CDC) . . . . . . . . . . . . . . 40
3.1.9 Beam test and a real size prototype drift chamber . . . 43
3.1.10 Performance . . . . . . . . . . . . . . . . . . . . . . . . . 44
3.2 Aerogel Cherenkov counter system (ACC) . . . . . . . . . . . . 48
3.2.1 Detector design . . . . . . . . . . . . . . . . . . . . . . . 48
3.2.2 ACC readout electronics . . . . . . . . . . . . . . . . . . 52
3.2.3 Performance of ACC . . . . . . . . . . . . . . . . . . . . 53
3.3 Time-of-flight counters (TOF) . . . . . . . . . . . . . . . . . . . 56
3.3.1 Design and construction of TOF . . . . . . . . . . . . . 56
3.3.2 Beam test . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3.3.3 Performance . . . . . . . . . . . . . . . . . . . . . . . . . 59
3.4 Electromagnetic Calorimeter (ECL) . . . . . . . . . . . . . . . . 62
3.4.1 Design of ECL . . . . . . . . . . . . . . . . . . . . . . . 62
3.4.2 Performance . . . . . . . . . . . . . . . . . . . . . . . . . 64
3.5 KL and muon detection system (KLM) . . . . . . . . . . . . . . 69
3.5.1 Design and construction . . . . . . . . . . . . . . . . . . 69
3.5.2 Performance . . . . . . . . . . . . . . . . . . . . . . . . . 73
Chapter 4 Analysis in Belle 77
4.1 Data aquisition - Hadron B(J) skim . . . . . . . . . . . . . . . . 77
4.2 Belle Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
4.3 MC generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Chapter 5 Λc(2765)+ reconstruction 81
5.1 Data set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.2 Λ+creconstruction . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.3 Λc(2765)+ reconstruction . . . . . . . . . . . . . . . . . . . . . . 82
5.3.1 Σ(?)c intermediate state . . . . . . . . . . . . . . . . . . . . 83
Chapter 6 Σ++/0c channel study 85
6.1 Σ++/0c selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
6.2 M(Λ+c π+π?) mass spectrum and fit result . . . . . . . . . . . . . 85
6.3 Systematic uncertainty study of mass and width of the Λc(2765)+ 88
6.4 Decay angle analysis of the Λc(2765)+ → Σcπ . . . . . . . . . . . 93
6.4.1 Defninition of angle and expected distribution . . . . . . . 93
6.4.2 Spectrum of M(Λ+c π+π?) in cosθ bin. . . . . . . . . . . . 94
6.4.3 Spin analysis - Λc(2880)+ cross check . . . . . . . . . . . 94
6.4.4 Spin analysis - Λc(2765)+ . . . . . . . . . . . . . . . . . . 97
6.5 Σc(2520)++/0channel study . . . . . . . . . . . . . . . . . . . . . 104
6.5.1 Σc(2520)++/0
selection . . . . . . . . . . . . . . . . . . . 104
6.5.2 Iteration . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
6.5.3 Systematic uncertainty study of mass and width of the
Λc(2765)+ . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Chapter 7 Decay angle analysis. Σc(2520)++ → Λ+c π+ 116
7.0.4 Expected decay angle distribution. . . . . . . . . . . . . . 116
7.0.5 Decay angle distribution analysis. . . . . . . . . . . . . . . 116
Chapter 8 Σc(2455)π/Σc(2520)π branching ratio study 128
8.1 Branching ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Chapter 9 Discussion 129
Chapter 10 conclusion 132
Bibliography 134
국문 초록 140Docto
Ms. 2765
Manuscrito número 2765 de la Biblioteca Histórica de la USAL3 hojas, 350 hojas : papel ; 287 x 203 mmTraslado notarial: certificación de autenticidad del traslado por Nicolás Antonio Díez de Ledesma, escribano del ayuntamiento (3 de febrero de 1755), quien rubrica los f. 1-332. Firmada y rubricada. La copia está hecha a partir de un traslado autorizado por Diego de la Peña, escribano de la villa, en 5 de enero de 1620.Título tomado de folios f. 333r-350v: Tabla de los capitulos que contienen estas hordenanzas por donde se rige y govierna esta villa de Miranda de el Castañar y lugares de su jurisdiçionFoliación de la época hasta f. 332, moderna para el restoLos pliegos de f. 1-2 y 331-332 en papel timbrado de 1755Escritura: Letra itálic
The radioactive Substances (Storage in Transit) Exemption (Scotland)Order 1962
ERAF: A6.SI.1962.2765(S.125 )STATUTORY INSTRUMENTS 1962 No.2765 (S.125) ATOMIC ENERGY AND RADIOACTIVE SUBSTANCES The Radioactive Substances (Storage in Transit) Exemption (Scotland) Order 196
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Linked collectors and determiners for: BOTU - Herbário Irina Delanova Gemtchújnicov.
Natural history specimen data linked to collectors and determiners held within, "BOTU - Herbário Irina Delanova Gemtchújnicov". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/92e7a11c-2765-4eee-9341-2a89083e6132">https://bionomia.net/dataset/92e7a11c-2765-4eee-9341-2a89083e6132</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/92e7a11c-2765-4eee-9341-2a89083e6132">https://gbif.org/dataset/92e7a11c-2765-4eee-9341-2a89083e6132</a>. Formatted as a Frictionless Data package
Variations on the Author
“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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