scholarly journals FIRST RESULTS FROM THE 2010 pp RUN AND PERFORMANCE OF THE CMS EXPERIMENT

2011 ◽  
Vol 26 (15) ◽  
pp. 1059-1073
Author(s):  
CHRISTOS LEONIDOPOULOS
Keyword(s):  
Standard Model ◽  
Compact Muon Solenoid ◽  
New Physics ◽  
High Quality ◽  
Cms Experiment ◽  
Cms Detector ◽  
First Results ◽  
And Performance ◽  
Very High

In 2010, the Compact Muon Solenoid (CMS) experiment at LHC recorded over 45 pb-1 of pp collision data at [Formula: see text]. The large collected datasets are of very high quality and have been used to commission and calibrate the CMS detector, with the achieved performance close to the TDR specifications. CMS has re-established all the major Standard Model processes in the 2010 Run and is entering new territory in searches for New Physics, with sensitivity already exceeding that at LEP and TeVatron.

scholarly journals B PHYSICS AT LHCb

2008 ◽  
Vol 23 (32) ◽  
pp. 5117-5136 ◽  
Author(s):  
MONICA PEPE ALTARELLI ◽  
FREDERIC TEUBERT
Keyword(s):  
Large Hadron Collider ◽  
Standard Model ◽  
B Physics ◽  
Hadron Collider ◽  
New Physics ◽  
Concise Review ◽  
The Standard Model ◽  
And Performance ◽  
Detector Design

LHCb is a dedicated detector for b physics at the LHC (Large Hadron Collider). In this paper we present a concise review of the detector design and performance together with the main physics goals and their relevance for a precise test of the Standard Model and search of New Physics beyond it.

Hot Isostatic Processing

2004 ◽  
pp. 55-60
Keyword(s):  
Aluminum Alloy ◽  
Hot Isostatic Pressing ◽  
High Quality ◽  
Advantages And Disadvantages ◽  
Radiographic Inspection ◽  
Hot Isostatic Processing ◽  
Alloy Castings ◽  
And Performance ◽  
Hip Process ◽  
Very High

Abstract Hot isostatic pressing (HIP) is a process refinement available to address internal porosity in castings. The HIP process may be used, in particular, for applications requiring very high quality and performance. This chapter discusses the principles, advantages, and disadvantages of HIP. It describes the effect of HIP on tensile properties and on the fatigue performance of aluminum alloy castings. In addition, the chapter discusses the processes involved in radiographic inspection of HIP-processed castings.

scholarly journals Highlights from the Compact Muon Solenoid (CMS) Experiment

Universe ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 28
Author(s):  
Saranya Ghosh ◽  
on behalf of the CMS Collaboration
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Top Quark ◽  
Compact Muon Solenoid ◽  
Production Cross ◽  
Hadron Collider ◽  
Center Of Mass ◽  
Proton Collision ◽  
Center Of Mass Energy ◽  
Cms Experiment

The highlights of the recent activities and physics results leading up to the summer of 2018 from the Compact Muon Solenoid (CMS) experiment at the CERN Large Hadron Collider (LHC) are presented here. The CMS experiment has a very wide-ranging physics program, and only a very limited subset of the physics analyses being performed at CMS are discussed here, consisting of several important results from the analysis of proton-proton collision data at center-of-mass energy of 13 TeV. These include important analyses of Higgs boson physics, with the highlight being the first observation of the t t ¯ H production of the Higgs boson, along with analyses pertaining to precision standard model measurements, top quark physics, with the single top production cross-section measurement, and flavor physics, with the important observation of χ b (3P) states. Additionally, important searches for physics beyond the standard model are also presented.

scholarly journals Změny kinetických charakteristik odrazu volejbalistů mládežnických kategorií v průběhu šesti měsíců

2011 ◽  
Vol 5 (1) ◽  
pp. 25-32
Author(s):  
Pavel Korvas ◽  
Jaroslav Šamšula
Keyword(s):  
Training Programme ◽  
Performance Level ◽  
Training Process ◽  
Average Strength ◽  
High Quality ◽  
Volleyball Players ◽  
And Performance ◽  
Regular Training ◽  
Very High

The authors compare four variables of an attack jump between two groups of volleyball players, juniors and cadets. We observed during six months average strength of rebound, maximal impulse of strength, the time of whole rebound and the time reaching maximal impulse of strength. Th e group of juniors had better results for every parameter but cadets reached the highest improvement. Th e younger group gets to positive changes in average strength during rebound by 17,4 %, and for the time of whole rebound about 16,6 %. Maximal impulse of strength was increased by 3,9 % and the time reaching maximal impulse of strength was shorter 14,4 %. Juniors reached smaller changes than cadets, for average strength during rebound 9,2 %, maximal impulse of strength was increased by 12,5 % and the time of whole rebound about 10,6 %. Th e value of maximal impulse of strength was worst by 5,2 %. Th e both groups realized training programme of a very high quality, juniors 342 hours and cadets 211 hour of trainings load. Th e diff erences in results and value of changes are consequences of maturity, time of regular training process and performance level of our groups.

The long journey to the Higgs boson and beyond at the LHC: Emphasis on CMS

2016 ◽  
Vol 31 (32) ◽  
pp. 1630058
Author(s):  
Tejinder Singh Virdee
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Hadron Collider ◽  
Heavy Particle ◽  
New Physics ◽  
Beyond The Standard Model ◽  
Cms Experiment ◽  
The Standard Model ◽  
Electroweak Sector ◽  
The One

Since 2010 there has been a rich harvest of results on standard model physics by the ATLAS and CMS experiments operating on the Large Hadron Collider. In the summer of 2012, a spectacular discovery was made by these experiments of a new, heavy particle. All the subsequently analysed data point strongly to the properties of this particle as those expected for the Higgs boson associated with the Brout–Englert–Higgs mechanism postulated to explain the spontaneous symmetry breaking in the electroweak sector, thereby explaining how elementary particles acquire mass. This article focuses on the CMS experiment, the technological challenges encountered in its construction, describing some of the physics results obtained so far, including the discovery of the Higgs boson, and searches for the widely anticipated new physics beyond the standard model, and peer into the future involving the high-luminosity phase of the LHC. This article is complementary to the one by Peter Jenni4 that focuses on the ATLAS experiment.

scholarly journals Development and operational experience of the web based application to collect, manage, and release the alignment and calibration configurations for data processing at CMS

2019 ◽  
Vol 214 ◽  
pp. 04006
Author(s):  
Hasbuddin Md ◽  
Arun Kumar ◽  
Giacomo Govi ◽  
Giovanni Franzoni ◽  
Luca Pernie ◽  
...  
Keyword(s):  
Data Processing ◽  
Data Management ◽  
Compact Muon Solenoid ◽  
Web Application ◽  
Operational Experience ◽  
High Quality ◽  
Management Tools ◽  
Web Based ◽  
Cms Experiment ◽  
The Web

The alignment and calibration workflows at the Compact Muon Solenoid (CMS) experiment are fundamental to provide a high quality physics data and to maintain the design performance of the experiment. To facilitate the operational efforts required by the experiment, the alignment and calibration team has developed and deployed a set of web-based applications to search, navigate and prepare a consistent set of calibrations to be consumed in reconstruction of data for physics, accessible through the Condition DB Browser. The Condition DB Browser hosts also various data management tools, including a vi-sualization tool that allows to easily inspect alignment an calibration contents, an user-defined notification agent for delivering updates on modification to the database, a logging service for the user and the automatic online-to-offline condition uploads. In this paper we report on the operational experience of this web application from 2017 data taking, with focus on new features and tools incorporated during this period.

scholarly journals Overview of the CMS Detector Performance at LHC Run 2

Universe ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 18
Author(s):  
Martina Ressegotti ◽  
Keyword(s):  
Higgs Boson ◽  
Large Hadron Collider ◽  
Compact Muon Solenoid ◽  
Hadron Collider ◽  
Detector Performance ◽  
Cms Experiment ◽  
Open Questions ◽  
The Standard Model ◽  
Global Performance ◽  
Cms Detector

The Compact Muon Solenoid (CMS) detector is one of the two multipurpose experiments at the Large Hadron Collider (LHC). It has successfully collected data during Run 1 (2010–2013) and achieved important physics results, like the discovery of the Higgs boson announced in 2012. Willing to unravel further open questions not yet explained by the standard model, intense activities have been performed to further improve the detector and the trigger before the LHC restart in 2016 (Run 2), in parallel with the upgrade of the LHC. The achieved global performance of the CMS experiment and of several subdetectors will be presented.

scholarly journals First results on the K+ → π+vv¯ decay search from NA62

2018 ◽  
Vol 191 ◽  
pp. 01002
Author(s):  
Viacheslav Duk
Keyword(s):  
Standard Model ◽  
Indirect Effects ◽  
Precise Measurement ◽  
Branching Ratio ◽  
New Physics ◽  
Single Event ◽  
Data Set ◽  
The Standard Model ◽  
First Results ◽  
O 10

The precise measurement of the branching ratio of an ultrarare decay K+ → π+vv¯ (~10-10 according to the calculation within the Standard Model) allows to probe New Physics via indirect effects at mass scales higher than those accessible at the LHC. The NA62 experiment at the CERN SPS is aimed at measuring this branching ratio with the 10% precision. To achieve such level of precision, a novel decay-in-flight technique is used. The statistics collected during the first NA62 physics run in 2016 allowed to demonstrate the proof of the experimental method and obtain O(10-10) single event sensitivity. The preliminary results based on the 2016 data set are described.

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