392 research outputs found
Altered functional brain network connectivity and glutamate system function in transgenic mice expressing truncated Disrupted-in-Schizophrenia 1
Considerable evidence implicates DISC1 as a susceptibility gene for multiple psychiatric diseases. DISC1 has been intensively studied at the molecular, cellular and behavioral level, but its role in regulating brain connectivity and brain network function remains unknown. Here, we utilize a set of complementary approaches to assess the functional brain network abnormalities present in mice expressing a truncated Disc1 gene (Disc1tr Hemi mice). Disc1tr Hemi mice exhibited hypometabolism in the prefrontal cortex (PFC) and reticular thalamus along with a reorganization of functional brain network connectivity that included compromised hippocampal–PFC connectivity. Altered hippocampal–PFC connectivity in Disc1tr Hemi mice was confirmed by electrophysiological analysis, with Disc1tr Hemi mice showing a reduced probability of presynaptic neurotransmitter release in the monosynaptic glutamatergic hippocampal CA1–PFC projection. Glutamate system dysfunction in Disc1tr Hemi mice was further supported by the attenuated cerebral metabolic response to the NMDA receptor (NMDAR) antagonist ketamine and decreased hippocampal expression of NMDAR subunits 2A and 2B in these animals. These data show that the Disc1 truncation in Disc1tr Hemi mice induces a range of translationally relevant endophenotypes underpinned by glutamate system dysfunction and altered brain connectivity
Effects of a balanced translocation between chromosomes 1 and 11 disrupting the DISC1 locus on white matter integrity
Objective
Individuals carrying rare, but biologically informative genetic variants provide a unique opportunity to model major mental illness and inform understanding of disease mechanisms. The rarity of such variations means that their study involves small group numbers, however they are amongst the strongest known genetic risk factors for major mental illness and are likely to have large neural effects. DISC1 (Disrupted in Schizophrenia 1) is a gene containing one such risk variant, identified in a single Scottish family through its disruption by a balanced translocation of chromosomes 1 and 11; t(1;11) (q42.1;q14.3).
Method
Within the original pedigree, we examined the effects of the t(1;11) translocation on white matter integrity, measured by fractional anisotropy (FA). This included family members with (n = 7) and without (n = 13) the translocation, along with a clinical control sample of patients with psychosis (n = 34), and a group of healthy controls (n = 33).
Results
We report decreased white matter integrity in five clusters in the genu of the corpus callosum, the right inferior fronto-occipital fasciculus, acoustic radiation and fornix. Analysis of the mixed psychosis group also demonstrated decreased white matter integrity in the above regions. FA values within the corpus callosum correlated significantly with positive psychotic symptom severity.
Conclusions
We demonstrate that the t(1;11) translocation is associated with reduced white matter integrity in frontal commissural and association fibre tracts. These findings overlap with those shown in affected patients with psychosis and in DISC1 animal models and highlight the value of rare but biologically informative mutations in modeling psychosis
The Atacama Cosmology Telescope: Microwave Intensity and Polarization Maps of the Galactic Center
We present arcminute-resolution intensity and polarization maps of the
Galactic center made with the Atacama Cosmology Telescope (ACT). The maps cover
a 32 deg field at 98, 150, and 224 GHz with ,
. We combine these data with Planck observations at
similar frequencies to create coadded maps with increased sensitivity at large
angular scales. With the coadded maps, we are able to resolve many known
features of the Central Molecular Zone (CMZ) in both total intensity and
polarization. We map the orientation of the plane-of-sky component of the
Galactic magnetic field inferred from the polarization angle in the CMZ,
finding significant changes in morphology in the three frequency bands as the
underlying dominant emission mechanism changes from synchrotron to dust
emission. Selected Galactic center sources, including Sgr A*, the Brick
molecular cloud (G0.253+0.016), the Mouse pulsar wind nebula (G359.23-0.82),
and the Tornado supernova remnant candidate (G357.7-0.1), are examined in
detail. These data illustrate the potential for leveraging ground-based Cosmic
Microwave Background polarization experiments for Galactic science.Comment: 26 pages, 14 figures, accepted for publication in Ap
20 years of research on the Alcator C-Mod tokamak
The object of this review is to summarize the achievements of research on the Alcator C-Mod tokamak [Hutchinson et al., Phys. Plasmas 1, 1511 (1994) and Marmar, Fusion Sci. Technol. 51, 261 (2007)] and to place that research in the context of the quest for practical fusion energy. C-Mod is a compact, high-field tokamak, whose unique design and operating parameters have produced a wealth of new and important results since it began operation in 1993, contributing data that extends tests of critical physical models into new parameter ranges and into new regimes. Using only high-power radio frequency (RF) waves for heating and current drive with innovative launching structures, C-Mod operates routinely at reactor level power densities and achieves plasma pressures higher than any other toroidal confinement device. C-Mod spearheaded the development of the vertical-target divertor and has always operated with high-Z metal plasma facing components—approaches subsequently adopted for ITER. C-Mod has made ground-breaking discoveries in divertor physics and plasma-material interactions at reactor-like power and particle fluxes and elucidated the critical role of cross-field transport in divertor operation, edge flows and the tokamak density limit. C-Mod developed the I-mode and the Enhanced Dα H-mode regimes, which have high performance without large edge localized modes and with pedestal transport self-regulated by short-wavelength electromagnetic waves. C-Mod has carried out pioneering studies of intrinsic rotation and demonstrated that self-generated flow shear can be strong enough in some cases to significantly modify transport. C-Mod made the first quantitative link between the pedestal temperature and the H-mode's performance, showing that the observed self-similar temperature profiles were consistent with critical-gradient-length theories and followed up with quantitative tests of nonlinear gyrokinetic models. RF research highlights include direct experimental observation of ion cyclotron range of frequency (ICRF) mode-conversion, ICRF flow drive, demonstration of lower-hybrid current drive at ITER-like densities and fields and, using a set of novel diagnostics, extensive validation of advanced RF codes. Disruption studies on C-Mod provided the first observation of non-axisymmetric halo currents and non-axisymmetric radiation in mitigated disruptions. A summary of important achievements and discoveries are included.United States. Dept. of Energy (Cooperative Agreement DE-FC02-99ER54512)United States. Dept. of Energy (Cooperative Agreement DE-FG03-94ER-54241)United States. Dept. of Energy (Cooperative Agreement DE-AC02-78ET- 51013)United States. Dept. of Energy (Cooperative Agreement DE-AC02-09CH11466)United States. Dept. of Energy (Cooperative Agreement DE-FG02-95ER54309)United States. Dept. of Energy (Cooperative Agreement DE-AC02-05CH11231)United States. Dept. of Energy (Cooperative Agreement DE-AC52-07NA27344)United States. Dept. of Energy (Cooperative Agreement DE-FG02- 97ER54392)United States. Dept. of Energy (Cooperative Agreement DE-SC00-02060
Crop Updates 2001 - Pulses
This session covers sixty six papers from different authors:
1. Pulse Industry Highlights
2. CONTRIBUTORS
3. BACKGROUND
4. SUMMARY OF PREVIOUS RESULTS
2000 REGIONAL ROUNDUP
5. Northern agricultural Region, M. Harries, W. O’Neill, Agriculture Western Australia
6. Central Agricultural Region, R. French, Agriculture Western Australia
7. Great Southern and Lakes,N. Brandon, N. Runciman and S. White,Agriculture Western Australia
8. Esperance, M. Seymour, Agriculture Western Australia
PULSE PRODUCTION AGRONOMY AND GENETIC IMPROVEMENT
Faba bean:
9. germplasm evaluation,
10. Variety evaluation,
11. Sowing rate and time of sowing, Variation in root morphology, P. White and T. Pope, Agriculture Western Australia
Desi chickpea:
12. Breeding highlights,
13. Variety evaluation,
14. Seed discolouration, C. Veitch, Agriculture Western Australia,
15. Performance under drought stress, J. Berger, N.C. Turner, CLIMA and CSIRO Plant Industry , K.H.M. Siddique, Agriculture Western Australia & CLIMA,
16. Resistance to chilling at flowering and to budworm, H. Clarke, CLIMA,
17. Effect of row spacing, sowing rate and orientation on growth and seed yield, G. Riethmuller, W. MacLeod, Agriculture Western Australia
Kabuli chickpea,
18. variety and germplasm evaluation,
19. Premium quality kabuli chickpea development in the ORIA,
20. International screening for ascochyta blight resistance,
21. Evaluation of ascochyta resistant germplasm in Australia
Field pea
22. Breeding highlights,
23. Variety evaluation,
24. Agronomic and varietal effects on seed quality, R. French, J. Millar and T.N. Khan, Agriculture Western Australia,
25. Seed yield and quality in the Great Southern, N. Brandon, R. Beermier, N. Brown and S. White,Agriculture Western Australia,
26. Herbicide tolerance of new varieties and lines, Esperance region, M. Seymour,Agriculture Western Australia,
27. Mullewa, H. Dhammu and T. Piper, D. Nicholson, M. D\u27Antuono, Agriculture Western Australia
28. Herbicide tolerance of Cooke on marginal soil, H. Dhammu and T. Piper, D.Nicholson, M. D\u27Antuono, Agriculture Western Australia,
29. Post emergent weed control using Raptor®
Lentil
30. Variety evaluation
31. Evaluation of advanced breeding lines from CIPAL
32. Elite germplasm from ICARDA and ACIAR project, K. Regan,Agriculture Western Australia, J. Clements and K.H.M. Siddique, Agriculture Western Australia and CLIMA, C. Francis CLIMA
33. Single row evaluation of F3/F4 breeding lines, K. Regan,Agriculture Western Australia, J. Clements, Agriculture Western Australia and CLIMA
Vetch
34. Germplasm evaluation
35. Time of sowing x fungicide, M. Seymour, Agriculture Western Australia
36. Tolerance to post emergent application of Sniper® M. Seymour, Agriculture Western Australia
37. Herbicide tolerance
Narbon bean
38. Germplasm evaluation, M. Seymour, Agriculture Western Australia
39. Herbicide tolerance, M. Seymour, Agriculture Western Australia
40. Post emergent use of knockdown herbicides, M. Seymour, Agriculture Western Australia
Albus lupin
41. Time of sowing, N. Brandon and R. Beermier, Agriculture Western Australia
Lathyrus development
42. Field evaluation, C. Hanbury and K.H.M. Siddique, CLIMA and Agriculture Western Australia
43. Animal feeding trials, C. Hanbury and K.H.M. Siddique, Agriculture Western Australia, C. White, CSIRO, B. Mullan, Agriculture Western Australia, B. Hughes, SARDI, South Australia
Species comparison
44. Time of sowing
45. Seed moisture of pulse species at harvest, G.P. Riethmuller and R.J. French Agriculture Western Australia
46.Rotational benefits of pulses on grey clay soils, N. Brandon, R. Beermier, R. Bowie, J. Warburton, Agriculture Western Australia P. Fisher, NRE, Victoria, M. Braimbridge, UWA Centre for Land Rehabilitation , F. Hoyle and W. Bowden, Agriculture Western Australia
47. Pulse species response to phosphorus and zinc, S. Lawrence, Z. Rengel, UWA, S.P. Loss, CSBP futurefarm M.D.A. Bolland, K.H.M. Siddique, W. Bowden, R. Brennan, Agriculture Western Australia
48. The effect of soil applied lime and lime pelleting on pulses, M. Seymour, Agriculture Western Australia
49. Antitranspirants
50. Mapping soils for pulses in the Great Southern, N. Brandon, P. Tille, N. Schoknecht, Agriculture Western Australia
DEMONSTRATION OF PULSES IN THE FARMING SYSTEM
51. New field pea and faba bean varieties in the Great Southern
52. Harvesting methods for field pea in the Great Southern, N. Brandon, R. Beermier, M. Seymour, Agriculture Western Australia
DISEASE AND PEST MANAGEMENT
53.Ascochyta blight of chickpea
54. Seed dressing and sowing depth
55. Foliar fungicide sprays
56. The ascochyta management package for 2001
57. Initiation ascochyta disease from infected stubble, J. Galloway and W. MacLeod, Agriculture Western Australia
58. Black spot of field pea
59. Ascochyta blight of chickpea
60. Ascochyta blight of faba bean
61. Pulse disease diagnostics, D. Wright and N. Burges Agriculture Western Australia
Viruses in pulses
62. Virus infection causes seed discolouration and poor seed quality R. Jones and L. Latham, Agriculture Western Australia
Insect pests
63. Aphid ecology in pulses, O. Edwards, J. Ridsdill-Smith and R. Horbury, CSIRO Entomology
64. Evaluation of transgenic field pea against pea weevils (Bruchus pisorum), Ms M.J. de Sousa Majer, Curtin University of Technology; N.C. Turner, CSIRO Plant Industry and D. Hardie, Agriculture Western Australia
65. Searching for markers for resistance to pea weevil, O. Byrne, CLIMA and Plant Sciences, UWA, N. Galwey, Plant Sciences, UWA, D. Hardie,Agriculture Western Australia and P. Smith, Botany, UWA
66. Improved stored grain fumigation on-farm with Phoscard®, R. Emery and E. Kostas, Agriculture Western Australia
ACKNOWLEDGEMENTS
PUBLICATIONS BY PULSE PRODUCTIVITY PROJECT STAFF
VARIETIES PRODUCED AND COMMERCIALLY RELEASE
Predictors of smoking lapse in a human laboratory paradigm
During a smoking quit attempt, a single smoking lapse is highly predictive of future relapse. While several risk factors for a smoking lapse have been identified during clinical trials, a laboratory model of lapse was until recently unavailable and, therefore, it is unclear whether these characteristics also convey risk for lapse in a laboratory environment.The primary study goal was to examine whether real-world risk factors of lapse are also predictive of smoking behavior in a laboratory model of smoking lapse.After overnight abstinence, 77 smokers completed the McKee smoking lapse task, in which they were presented with the choice of smoking or delaying in exchange for monetary reinforcement. Primary outcome measures were the latency to initiate smoking behavior and the number of cigarettes smoked during the lapse. Several baseline measures of smoking behavior, mood, and individual traits were examined as predictive factors.Craving to relieve the discomfort of withdrawal, withdrawal severity, and tension level were negatively predictive of latency to smoke. In contrast, average number of cigarettes smoked per day, withdrawal severity, level of nicotine dependence, craving for the positive effects of smoking, and craving to relieve the discomfort of withdrawal were positively predictive of number of cigarettes smoked.The results suggest that real-world risk factors for smoking lapse are also predictive of smoking behavior in a laboratory model of lapse. Future studies using the McKee lapse task should account for between subject differences in the unique factors that independently predict each outcome measure
Alcator C-Mod: research in support of ITER and steps beyond
This paper presents an overview of recent highlights from research on Alcator C-Mod. Significant progress has been made across all research areas over the last two years, with particular emphasis on divertor physics and power handling, plasma–material interaction studies, edge localized mode-suppressed pedestal dynamics, core transport and turbulence, and RF heating and current drive utilizing ion cyclotron and lower hybrid tools. Specific results of particular relevance to ITER include: inner wall SOL transport studies that have led, together with results from other experiments, to the change of the detailed shape of the inner wall in ITER; runaway electron studies showing that the critical electric field required for runaway generation is much higher than predicted from collisional theory; core tungsten impurity transport studies reveal that tungsten accumulation is naturally avoided in typical C-Mod conditions.United States. Department of Energy (DE-FC02-99ER54512-CMOD)United States. Department of Energy (DE-AC02-09CH11466)United States. Department of Energy (DE-FG02-96ER-54373)United States. Department of Energy (DE-FG02-94ER54235
Crop Updates 2002 - Pulse Research and Industry Development in Western Australia
This session covers seventy one papers from different authors:
1. 2001 PULSE INDUSTRY HIGHLIGHTS
CONTRIBUTORS
BACKGROUND
2001 REGIONAL ROUNDUP
2. Northern Agricultural Region, M. Harries, Department of Agriculture
3. Central Agricultural Region, R. French and I. Pritchard, Department of Agriculture
4. Great Southern and Lakes, N. Brandon, N. Runciman and S. White, Department of Agriculture
5. Esperance Mallee, M. Seymour, Department of Agriculture
PULSE PRODUCTION AGRONOMY AND GENETIC IMPROVEMENT
6. Faba bean, P. White, Department of Agriculture
7. Germplasm evaluation, P. White, M. Seymour and M. Harries, Department of Agriculture
8. Variety evaluation, P. White, M. Harries, N. Brandon and M. Seymour, Department of Agriculture
9. Sowing rate and time of sowing, P. White, N. Brandon, M. Seymour and M. Harries, Department of Agriculture
10.Use of granular inoculum in the Great Southern, N. Brandon1, J. Howieson2 and R. Yates2 1Department of Agriculture, 2Centre for Rhizobium Studies, Murdoch University
11.Tolerance to post emergent herbicides, M. Seymour and M. Harries, Department of Agriculture
12.Herbicide tolerance of new varieties, H. Dhammu and T. Piper, Department of Agriculture
Desi chickpea
13. Breeding highlights, T. Khan, Department of Agriculture
14. Variety evaluation, T. Khan and K. Regan, Department of Agriculture
15. Effect of genotype and environment on seed quality, N. Suizu1 and D. Diepeveen2 1School of Public Health, Curtin University of Technology 2Department of Agriculture
16. Seed discolouration, C. Veitch and P. White, Department of Agriculture
17. Foliar application on N increases seed yield and seed protein under terminal
drought, J. Palta1,2, A. Nandwal3 and N. Turner1,2 , 1CSIRO Plant Industry, 2CLIMA, the University of Western Australia, 3Department of Botany, Haryana Agric University, Hisar, India
18. Tolerance to chilling at flowering, H. Clarke, CLIMA, The University of Western Australia
19. Molecular studies of ascochyta blight disease in chickpea, G. Dwyer1, H. Loo1, T. Khan2, K. Siddique3, M. Bellgard1 and M. Jones1 ,1WA State Agricultural Biotechnology Centre and Centre for Bioinformatics and Biological Computing, Murdoch University, 2Department of Agriculture, 3CLIMA, The University of Western Australia
20. Effect of row spacing and sowing rate on seed yield, G. Riethmuller and B. MacLeod, Department of Agriculture
21. Herbicide tolerance on marginal soil types, H. Dhammu and T. Piper, Department of Agriculture
22. Kabuli chickpea, K. Regan, Department of Agriculture
23. Variety and germplasm evaluation, T. Khan and K. Regan, Department of Agriculture
24. Premium quality kabuli chickpea development in the ORIA, K. Siddique1, K. Regan2, R. Shackles2 and P. Smith2 , 1 CLIMA, The University of Western Australia, 2Department of Agriculture
25. Evaluation of ascochylta resistant germplasm from Syria and Turkey, K. Siddique1, C. Francis1 and K. Regan2, 1CLIMA, University of Western Australia 2Department of Agriculture
Field pea
26. Breeding highlights, T. Khan Department of Agriculture
27. Variety evaluation, T. Khan Department of Agriculture
28. Comparing the phosphorus requirement of field pea and wheat, M. Bolland and P. White, Department of Agriculture
29. Tolerance of field pea to post emergent herbicides, M. Seymour and N. Brandon, Department of Agriculture
30. Response of new varieties to herbicides, H. Dhammu and T. Piper, Department of Agriculture
31. Lentil, K. Regan, Department of Agriculture
32. Variety evaluation, K. Regan, N. Brandon, M. Harries and M. Seymour, Department of Agriculture
33. Interstate evaluation of advanced breeding lines developed in WA, K. Regan1, K. Siddique2 and M. Materne3, 1Department of Agriculture, 2CLIMA, University of Western Australia, 3Victorian Institute for Dryland Agriculture, Agriculture Victoria
34. Evaluation of germplasm from overseas and local projects, K. Regan1, J. Clements2, K.H.M. Siddique2 and C. Francis21Department of Agriculture, 2CLIMA, University of Western Australia
35. Evaluation of breeding lines developed in WA, K. Regan1, J. Clements2, K.H.M. Siddique2 and C. Francis21Department of Agriculture, 2CLIMA, University of Western Australia
36. Productivity and yield stability in Australia and Nepal, C. Hanbury, K. Siddique and C. Francis, CLIMA, the University of Western Australia
Vetch
37. Germplasm evaluation, M. Seymour1, R. Matic2 and M. Tate3, 1Department of Agriculture, 2South Australian Research and Development Institute, 3University of Adelaide, Waite Campus
38. Tolerance of common vetch to post emergent herbicides, M. Seymour and N. Brandon, Department of Agriculture
Narbon bean
39. Removing narbon bean from wheat, M. Seymour, Department of Agriculture
40. Tolerance to low rates of Roundup and Sprayseed, M. Seymour, Department of Agriculture
41. Lathyrus development, C. Hanbury, CLIMA, the University of Western Australia
42. Poultry feeding trials, C. Hanbury1 and B. Hughes2 ,1CLIMA, the University of Western Australia,2Pig and Poultry Production Institute, South Australia
Pulse Species
43. Species time of sowing, B. French, Department of Agriculture
44. High value pulses in the Great Southern, N. Brandon and N. Runciman, Department of Agriculture
45. Time of Harvest for improved seed yields of pulses, G. Riethmuller and B. French, Department of Agriculture
46. Phosphate acquisition efficiency of pulse crops, P. Rees, Plant Biology, Faculty of Natural and Agricultural Sciences UWA
DEMONSTRATION OF PULSES IN THE FARMING SYSTEM
47. Howzat desi chickpea in the northern region, M. Harries, Department of Agriculture
48. Field pea harvest losses in the Great Southern and Esperance region, N. Brandon and M. Seymour, Department of Agriculture
49. Timing of crop topping in field pea, N. Brandon and G. Riethmuller, Department of Agriculture
DISEASE AND PEST MANAGEMENT
50. Ascochyta blight of chickpea, B. MacLeod, M. Harries and N. Brandon, Department of Agriculture
51. Evaluation of Australian management packages,
52. Screening foliar fungicides
53. Row spacing and row spraying
54. Ascochyta management package for 2002, B. MacLeod, Department of Agriculture
55. Epidemiology of aschochyta and botrytis disease of pulses, J. Galloway and B. MacLeod, Department of Agriculture
56. Ascochyta blight of chickpea
57. Black spot of field pea
58. Ascochyta blight of faba bean
59. Ascochyta blight of lentil
60. Botrytis grey mould of chickpea
61. Black spot spread: Disease models are based in reality, J. Galloway, Department of Agriculture
62. Black spot spread: Scaling-up field data to simulate ‘Bakers farm’, M. Salam, J. Galloway, A. Diggle and B. MacLeod, Department of Agriculture
63. Pulse disease diagnostics, N. Burges and D. Wright, Department of Agriculture
Viruses in pulses
64. Incidence of virus diseases in chickpea, J. Hawkes1, D. Thackray1 and R. Jones1,2, 1CLIMA, The University of Western Australia 2Department of Agriculture
Insect pests
65. Risk assessment of aphid feeding damage on pulses, O. Edwards, J. Ridsdill-Smith, and R. Horbury, CSIRO Entomology
66. Optimum spray timing to control aphid feeding damage of faba bean, F. Berlandier, Department of Agriculture
67. Incorporation of pea weevil resistance into a field pea variety, O. Byrne1 and D. Hardie2, 1CLIMA, The University of Western Australia, 2Department of Agriculture
68. Screening wild chickpea species for resistance to Helicoverpa, T. Ridsdill-Smith1 and H. Sharma2,1CSIRO, Entomology, 2ICRISAT, Hyderabad
69. Field strategies to manage the evolution of pea weevil resistance in transgenic field pea, M. de Sousa Majer1, R. Roush2, D. Hardie3, R. Morton4 and T. Higgins4, 1Curtin University of Technology, 2Waite Campus, University of Adelaide, 3Department of Agriculture, 4CSIRO Plant Industry, Canberra
70. ACKNOWLEDGMENTS
71. Appendix 1: Summary of previous result
Measurement of associated Z plus charm production in proton-proton collisions at root s=8TeV
A study of the associated production of a Z boson and a charm quark jet (Z + c), and a comparison to production with a b quark jet (Z + b), in pp collisions at a centre-of-mass energy of 8 TeV are presented. The analysis uses a data sample corresponding to an integrated luminosity of 19.7 fb(-1), collected with the CMS detector at the CERN LHC. The Z boson candidates are identified through their decays into pairs of electrons or muons. Jets originating from heavy flavour quarks are identified using semileptonic decays of c or b flavoured hadrons and hadronic decays of charm hadrons. The measurements are performed in the kinematic region with two leptons with pT(l) > 20 GeV, vertical bar eta(l)vertical bar 25 GeV and vertical bar eta(jet)vertical bar Z + c + X) B(Z -> l(+)l(-)) = 8.8 +/- 0.5 (stat)+/- 0.6 (syst) pb. The ratio of the Z+c and Z+b production cross sections is measured to be sigma(pp -> Z+c+X)/sigma (pp -> Z+b+X) = 2.0 +/- 0.2 (stat)+/- 0.2 (syst). The Z+c production cross section and the cross section ratio are also measured as a function of the transverse momentum of theZ boson and of the heavy flavour jet. The measurements are compared with theoretical predictions.Peer reviewe
Search for a singly produced third-generation scalar leptoquark decaying to a tau lepton and a bottom quark in proton-proton collisions at root s=13 TeV
A search is presented for a singly produced third-generation scalar leptoquark decaying to a tau lepton and a bottom quark. Associated production of a leptoquark and a tau lepton is considered, leading to a final state with a bottom quark and two tau leptons. The search uses proton-proton collision data at a center-of-mass energy of 13 TeV recorded with the CMS detector, corresponding to an integrated luminosity of 35.9 fb(-1). Upper limits are set at 95% confidence level on the production cross section of the third-generation scalar leptoquarks as a function of their mass. From a comparison of the results with the theoretical predictions, a third-generation scalar leptoquark decaying to a tau lepton and a bottom quark, assuming unit Yukawa coupling (lambda), is excluded for masses below 740 GeV. Limits are also set on lambda of the hypothesized leptoquark as a function of its mass. Above lambda = 1.4, this result provides the best upper limit on the mass of a third-generation scalar leptoquark decaying to a tau lepton and a bottom quark.Peer reviewe
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