Search for a new resonance decaying to a W or Z boson and a Higgs boson in the ll/lv/vv + bb final states with the ATLAS detector

A search for a new resonance decaying to a W or Z boson and a Higgs boson in the ll/lv/vv + bb final states is performed using 20.3 fb −1 of pp collision data recorded at √ s = 8 TeV with the ATLAS detector at the Large Hadron Collider. The search is conducted by examining the W H / Z H invariant mass distribution for a localized excess. No significant deviation from the Standard Model background prediction is observed. The results are interpreted in terms of constraints on the Minimal Walking Technicolor model and on a simplified approach based on a phenomenological Lagrangian of Heavy Vector Triplets

TIC 172900988: A transiting circumbinary planet detected in one sector of TESS data

We report the first discovery of a transiting circumbinary planet detected from a single sector of Transiting Exoplanet Survey Satellite (TESS) data. During Sector 21, the planet TIC 172900988b transited the primary star and then five days later it transited the secondary star. The binary is itself eclipsing, with a period P ≈ 19.7 days and an eccentricity e ≈ 0.45. Archival data from ASAS-SN, Evryscope, KELT, and SuperWASP reveal a prominent apsidal motion of the binary orbit, caused by the dynamical interactions between the binary and the planet. A comprehensive photodynamical analysis of the TESS, archival and follow-up data yields stellar masses and radii of M1 = 1.2384 ± 0.0007 Me and R1 = 1.3827 ± 0.0016 Re for the primary and M2 = 1.2019 ± 0.0007 Me and R2 = 1.3124 ± 0.0012 Re for the secondary. The radius of the planet is R3 = 11.25 ± 0.44 R (1.004 ± 0.039RJup). The planet's mass and orbital properties are not uniquely determined-there are six solutions with nearly equal likelihood. Specifically, we find that the planet's mass is in the range of 824 M3 981 M (2.65 M3 3.09MJup), its orbital period could be 188.8, 190.4, 194.0, 199.0, 200.4, or 204.1 days, and the eccentricity is between 0.02 and 0.09. At V = 10.141 mag, the system is accessible for high-resolution spectroscopic observations, e.g., the Rossiter-McLaughlin effect and transit spectroscopy

Systems assessment of atmospheric fluidized-bed combustion: baseline study

Early in December 1977, ORNL was asked to undertake a systems analysis and technology assessment of atmospheric fluidized-bed combustion (AFBC) with specific emphasis on: Market potential, comparative economics, technical issues, and impact of environmental control requirements. The baseline study of this activity was performed during December and culminated in the present draft report on December 30, 1977. The purpose of this report is to identify the major issues and questions regarding AFBC, survey available literature, propose a work plan for the six-month execution phase of the project beginning January 1, 1978, present a preliminary outline of the execution phase final report, and identify major current AFBC projects and issues being addressed by each

Nonoperative Management of Blunt Splenic Trauma: Also Feasible and Safe in Centers with Low Trauma Incidence and in the Presence of Established Risk Factors

Background: Treatment of blunt splenic trauma has undergone dramatic changes over the last few decades. Nonoperative management (NOM) is now the preferred treatment of choice, when possible. The outcome of NOM has been evaluated. This study evaluates the results following the management of blunt splenic injury in adults in a Swedish university hospital with a low blunt abdominal trauma incidence. Method: Fifty patients with blunt splenic trauma were treated at the Department of Surgery, Lund University Hospital from January 1994 to December 2003. One patient was excluded due to a diagnostic delay of > 24 h. Charts were reviewed retrospectively to examine demographics, injury Severity score (ISS), splenic injury grade, diagnostics, treatment and outcome measures. Results: Thirty-nine patients (80%) were initially treated nonoperatively (NOM), and ten (20%) patients underwent immediate surgery (operative management, OM). Only one (3%) patient failed NOM and required surgery nine days after admission (failure of NOM, FNOM). The patients in the OM group had higher ISS (p < 0.001), higher grade of splenic injury (p < 0.001), and were hemodynamically unstable to a greater extent (p < 0.001). This was accompanied by increased transfusion requirements (p < 0.001), longer stay in the ICU unit (p < 0.001) and higher costs (p = 0.001). Twenty-seven patients were successfully treated without surgery. No serious complication was found on routine radiological follow-up. Conclusion: Most patients in this study were managed conservatively with a low failure rate of NOM. NOM of blunt splenic trauma could thus be performed in a seemingly safe and effective manner, even in the presence of established risk factors. Routine follow-up with CT scan did not appear to add clinically relevant information affecting patient management