370 research outputs found
Effects of the FCNC couplings in production of new heavy quarks within Z' models at the LHC
We study the flavor changing neutral current couplings of new heavy quarks
through the Z' models at the LHC. We calculate the cross sections for the
signal and the corresponding standard model background processes. Considering
the present limits on the mass of new heavy quarks and the Z' boson, we
performed an analysis to investigate the parameter space (mixing and mass)
through different Z' models. For an FCNC mixing parameter x=0.1 and the Z' mass
M_{Z'}=2000 GeV, and new heavy quark mass m_{t'}=700 GeV at the LHC with
\sqrt{s}=13 TeV, we find the cross section for single production of new heavy
quarks associated with top quarks as 5.8 fb, 3.3 fb, 1.5 fb and 1.2 fb within
the Z'_{\eta} , Z'_{\psi} , Z'_{LP} and Z'_{\chi} models, respectively. It is
shown that the sensitivity would benefit from the flavor tagging.Comment: 17 pages, 18 figures, update. arXiv admin note: text overlap with
arXiv:1003.315
Projected Sensivity to Dimension-6 Triple Gauge Couplings at the FCC-hh
In this study, we investigate the process for
the physics potential of the FCC-hh with TeV to examine the
anomalous couplings defined by three CP-conserving and two
CP-violating effective operators of dimension-6. The analysis containing the
realistic detector effects is carried out in the mode where bosons in
the final state decay into the leptonic channel. The best sensitivities
obtained from the process on the anomalous
couplings and determined by
CP-conserving effective Lagrangians are TeV and TeV, while and couplings defined by CP-violating effective Lagrangian are
obtained as TeV and TeV at the
FCC-hh with TeV, ab. However, if the
systematic uncertainty is included, we obtain reduced sensitivities on the
anomalous coupling . The results are compared for assumed
systematics of and .Comment: 17 pages, 6 Figures and Tables I
Search for the anomalous and gauge couplings through the process with unpolarized and polarized beams
This work offers the constraints on the anomalous neutral triple gauge
couplings (aNTGC) for the process at the CLIC with
TeV. The realistic CLIC detector environments and their effects
are considered in our analysis. The study is planned for the decays of
producted bosons to a pair of charged leptons (electrons or muons) and
neutrino pairs. The bounds on the aNTGCs defining -conserving
coupling and three -violating
, , and couplings
are obtained. Also, the effects and advantages of polarization for incoming
electron beams in these calculations are investigated.Comment: 21 pages, 14 figure
Single Production of Vectorlike Y Quarks at the HL-LHC
We study single production of exotic vectorlike quark with electric
charge and its subsequent decay at the High Luminosity LHC
(HL-LHC). Most of the vector like quark (VLQ) decays have the electroweak
bosons in the intermediate state. Besides their direct productions singly or
pairs, the -bosons are involved in decay chains as a result of the decay of
a top quark which contributes to the background. This is particularly the case
since vectorlike quark, which is estimated to be produced with a high
cross-section, can only decay via a boson and a down type quark ().
We calculate the cross sections of signal (for different couplings and mass
values) and relevant Standard Model (SM) backgrounds. After a fast simulation
of signal and background events, estimations of the sensitivity to the
parameters (mass range 1000-2500 GeV for coupling value , and
mass range 500-2000 GeV for coupling values and
) have been presented at the HL-LHC with center of mass energy
TeV and integrated luminosity projections of 300 fb, 1000
fb and 3000 fb.Comment: 14 pages, 21 figure
Non-functional Requirement Prioritization Approach
This paper proposes a non-functional requirement prioritization technique where
both functional and non-functional requirements are prioritized and that is based on
AHP (Analytic Hierarchy Process) technique employing suitable aspects.
The non-functional requirements are further re-prioritized based on their
dependency with high priority functional requirements and usage counts. The usage of
the proposed method is illustrated with a hypothetical example. The technique is also
executed on a case study of the evolving software and the technique resulted in
selection of 16 requirements out of 30, yielding considerable reduction in the number
of requirements to be implemented. Although the use of the AHP technique may limit
the optimization, the use of the numerical assignment technique based on the usage
count and dependency count do considerably reduce the number of requirements.
The proposed technique prioritizes non-functional requirements independently from
functional requirements but they are further selected in terms of their dependencies
and usage counts with respect to functional requirements
Effects of compaction pressure, speed and punch head profile on the ultrasonically-extracted physical properties of pharmaceutical compacts
Despite a well-established manufacturing-process understanding, tablet quality issues are frequently encountered during various stages of drug-product development. Compact breaking force (tensile strength), capping and friability are among the commonly observed characteristics that determine the integrity, quality and manufacturability of tablets. In current study, a design space of the compaction pressure, compaction speed and head flat types is introduced for solid dosage compacts prepared from pure silicified microcrystalline cellulose, a popular tableting excipient. In the reported experiments, five types of head flat types at six compaction pressure levels and two compaction speeds were employed and their effects on compact mechanical properties evaluated. The mechanical properties of the tablets were obtained non-destructively. It is demonstrated these properties correlate well with compact porosity and tensile strength, thus their availability is of practical value. The reported mechanical properties are observed to be linearly sensitive to the tableting speed and compaction pressure, and their dependency on the head-flat profile, while clearly visible in the presented waveforms, was found to be nonlinear in the range of the parameter space. In this study, we detail a non-destructive, easy-to-use approach for characterizing the porosity and tensile strength of pharmaceutical tablets
FREQUENCY RATIO ASSESSMENT FOR LANDSLIDES TRIGGERED BY 6 FEBRUARY 2023 KAHRAMANMARAS TURKIYE EARTHQUAKES BETWEEN GOLBASI AND ERKENEK
Landslides triggered by earthquakes are significant geological hazards that can have devastating consequences, posing risks to human lives, infrastructure, and the environment. These seismic events may cause the instability of slopes and result in the displacement of soil and rock materials, leading to landslides. It is crucial to understand the characteristics and mechanisms of earthquake-triggered landslides in order to effectively manage and mitigate their associated risks. The number of landslides triggered by the 2023 Kahramanmaraş earthquakes (with magnitudes of 7.7 and 7.6) was over three thousand and their destructive effects were also devastating as secondary hazards. This study aims to examine the characteristics of landslides using the frequency ratio (FR) model. A landslide susceptibility map (LSM) was also produced using the output. For this purpose, in this study, we derived landslides triggered by the earthquakes in a part of the earthquake-affected region, between Golbasi town of Adiyaman and Erkenek village of Malatya covering an area with a size of 625 km2. The study utilized a landslide inventory that was manually delineated by visual interpretation based on pre-event and post-event. These associations can serve as a foundation for the application of various data-driven machine learning techniques. The findings of this study will contribute to the development of accurate LSMs, providing crucial insights into the behavior of earthquake-triggered landslides
A Large Hadron Electron Collider at CERN
This document provides a brief overview of the recently published report on
the design of the Large Hadron Electron Collider (LHeC), which comprises its
physics programme, accelerator physics, technology and main detector concepts.
The LHeC exploits and develops challenging, though principally existing,
accelerator and detector technologies. This summary is complemented by brief
illustrations of some of the highlights of the physics programme, which relies
on a vastly extended kinematic range, luminosity and unprecedented precision in
deep inelastic scattering. Illustrations are provided regarding high precision
QCD, new physics (Higgs, SUSY) and electron-ion physics. The LHeC is designed
to run synchronously with the LHC in the twenties and to achieve an integrated
luminosity of O(100) fb. It will become the cleanest high resolution
microscope of mankind and will substantially extend as well as complement the
investigation of the physics of the TeV energy scale, which has been enabled by
the LHC
International consensus on (ICON) anaphylaxis
ICON: Anaphylaxis provides a unique perspective on the principal evidence-based anaphylaxis guidelines developed and published independently from 2010 through 2014 by four allergy/immunology organizations. These guidelines concur with regard to the clinical features that indicate a likely diagnosis of anaphylaxis -- a life-threatening generalized or systemic allergic or hypersensitivity reaction. They also concur about prompt initial treatment with intramuscular injection of epinephrine (adrenaline) in the mid-outer thigh, positioning the patient supine (semi-reclining if dyspneic or vomiting), calling for help, and when indicated, providing supplemental oxygen, intravenous fluid resuscitation and cardiopulmonary resuscitation, along with concomitant monitoring of vital signs and oxygenation. Additionally, they concur that H1-antihistamines, H2-antihistamines, and glucocorticoids are not initial medications of choice. For self-management of patients at risk of anaphylaxis in community settings, they recommend carrying epinephrine auto-injectors and personalized emergency action plans, as well as follow-up with a physician (ideally an allergy/immunology specialist) to help prevent anaphylaxis recurrences. ICON: Anaphylaxis describes unmet needs in anaphylaxis, noting that although epinephrine in 1 mg/mL ampules is available worldwide, other essentials, including supplemental oxygen, intravenous fluid resuscitation, and epinephrine auto-injectors are not universally available. ICON: Anaphylaxis proposes a comprehensive international research agenda that calls for additional prospective studies of anaphylaxis epidemiology, patient risk factors and co-factors, triggers, clinical criteria for diagnosis, randomized controlled trials of therapeutic interventions, and measures to prevent anaphylaxis recurrences. It also calls for facilitation of global collaborations in anaphylaxis research. In addition to confirming the alignment of major anaphylaxis guidelines, ICON: Anaphylaxis adds value by including summary tables and citing 130 key references. It is published as an information resource about anaphylaxis for worldwide use by healthcare professionals, academics, policy-makers, patients, caregivers, and the public
- …