scholarly journals ELECTRON-POSITRON- COLLIDERS

2002 ◽  
Vol 17 (24) ◽  
pp. 3469-3482 ◽  
Author(s):  
R.-D. HEUER
Keyword(s):  
Large Hadron Collider ◽  
Energy Range ◽  
Linear Collider ◽  
Hadron Collider ◽  
Short Review ◽  
International Project ◽  
Crucial Importance ◽  
Physics Program ◽  
Electron Positron ◽  
The Standard Model

An electron-positron linear collider in the energy range between 500 and 1000 GeV is of crucial importance to precisely test the Standard Model and to explore the physics beyond it. The physics program is complementary to that of the Large Hadron Collider. Some of the main physics goals and the expected accuracies of the anticipated measurements at such a linear collider are discussed. A short review of the different collider designs presently under study is given including possible upgrade paths to the multi-TeV region. Finally a framework is presented within which the realisation of such a project could be achieved as a global international project.

scholarly journals Leveraging the Economic Potential of FCC’s Technologies and Processes

2020 ◽  
pp. 85-91
Author(s):  
Linn Kretzschmar
Keyword(s):  
Large Hadron Collider ◽  
Hadron Collider ◽  
New Physics ◽  
Accelerator Complex ◽  
The Core ◽  
Electron Positron ◽  
Circular Particle ◽  
The Standard Model ◽  
New Energy ◽  
The Universe

Abstract An international consortium of more than 150 organizations worldwide is studying the feasibility of various future particle colliders to expand our understanding of the inner workings of the Universe. At the core of the Future Circular Collider (FCC) study is the design of a 100 km long circular particle collider infrastructure that could extend CERN’s current accelerator complex with an integral research program that spans 70 years. The first step would be an intensity-frontier electron-positron collider allowing to study with precision the Higgs couplings with many of the Standard Model particles and search with high-precision for new physics while the ultimate goal is to build a proton collider with a c.m.s collision energy seven times larger than the Large Hadron Collider. Hosted in the same tunnel and profiting from the new infrastructure, FCC-hh would allow to explore a new energy regime where new physics may be at play.

scholarly journals The future of the Large Hadron Collider and CERN

2012 ◽  
Vol 370 (1961) ◽  
pp. 986-994 ◽  
Author(s):  
Rolf-Dieter Heuer
Keyword(s):  
Large Hadron Collider ◽  
Particle Physics ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
High Energy ◽  
Scientific Programme ◽  
Electron Positron ◽  
To Come ◽  
Energy Frontier

This paper presents the Large Hadron Collider (LHC) and its current scientific programme and outlines options for high-energy colliders at the energy frontier for the years to come. The immediate plans include the exploitation of the LHC at its design luminosity and energy, as well as upgrades to the LHC and its injectors. This may be followed by a linear electron–positron collider, based on the technology being developed by the Compact Linear Collider and the International Linear Collider collaborations, or by a high-energy electron–proton machine. This contribution describes the past, present and future directions, all of which have a unique value to add to experimental particle physics, and concludes by outlining key messages for the way forward.

scholarly journals The pre-LHC Higgs hunt

2015 ◽  
Vol 373 (2032) ◽  
pp. 20140039 ◽  
Author(s):  
G. Dissertori
Keyword(s):  
Higgs Boson ◽  
Large Hadron Collider ◽  
Standard Model ◽  
Particle Physics ◽  
Hadron Collider ◽  
Precise Data ◽  
Electron Positron ◽  
The Standard Model ◽  
The World ◽  
Large Electron Positron

Enormous efforts at accelerators and experiments all around the world have gone into the search for the long-sought Higgs boson, postulated almost five decades ago. This search has culminated in the discovery of a Higgs-like particle by the ATLAS and CMS experiments at CERN's Large Hadron Collider in 2012. Instead of describing this widely celebrated discovery, in this article I will rather focus on earlier attempts to discover the Higgs boson, or to constrain the range of possible masses by interpreting precise data in the context of the Standard Model of particle physics. In particular, I will focus on the experimental efforts carried out during the last two decades, at the Large Electron Positron collider, CERN, Geneva, Switzerland, and the Tevatron collider, Fermilab, near Chicago, IL, USA.

NEXT LINEAR COLLIDER: OVERVIEW AND e-e- OPTION

2000 ◽  
Vol 15 (16) ◽  
pp. 2461-2468
Author(s):  
P. TENENBAUM
Keyword(s):  
Large Hadron Collider ◽  
Room Temperature ◽  
Permanent Magnets ◽  
Linear Collider ◽  
Hadron Collider ◽  
Center Of Mass ◽  
Electron Collisions ◽  
Rf Systems ◽  
Electron Positron ◽  
Positron Collisions

A lepton collider capable of generating a luminosity of 5×1033 to 1×1034 at center-of-mass energies from 0.5 to 1.5 TeV would permit studies of fundamental interactions complementary to those planned at the Large Hadron Collider. Such energies would be more easily achieved for electrons at a linear collider than a conventional storage ring. We describe the Next Linear Collider (NLC), a proposed linear collider which utilizes room-temperature RF systems operating at 11.4 GHz to achieve the desired energies and room-temperature electromagnets and permanent magnets to achieve the extremely small beam sizes required to meet the specified luminosity goal. The NLC design has been optimized to permit electron–electron collisions as well as electron–positron collisions. We discuss a few of the detailed technical challenges which are posed by electron–electron collisions in the NLC parameter regime.

R&D FOR FUTURE DETECTORS

2005 ◽  
Vol 20 (22) ◽  
pp. 5276-5286
Author(s):  
JAMES E. BRAU
Keyword(s):  
Large Hadron Collider ◽  
Research And Development ◽  
Particle Physics ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
Physics Program ◽  
The Future ◽  
Detector Technology

Research and development of detector technology are critical to the future particle physics program. The goals of the International Linear Collider, in particular, require advances that are challenging, despite the progress driven in recent years by the needs of the Large Hadron Collider. The ILC detector goals and challenges are described and the program to address them is summarized.

scholarly journals NMSSM light decoupled Higgs singlet at CEPC

2017 ◽  
Vol 32 (34) ◽  
pp. 1746011 ◽  
Author(s):  
C. T. Potter
Keyword(s):  
Large Hadron Collider ◽  
Hadron Collider ◽  
Higgs Bosons ◽  
Electron Positron ◽  
Large Electron Positron

We describe the phenomenology of light singlet Higgs bosons in the Next-to-Minimal Supersymmetry Model (NMSSM) which are mostly decoupled from the rest of Supersymmetry. Noting that the Large Hadron Collider has not excluded this scenario, we describe previous searches for light Higgs bosons at the Large Electron Positron collider and evaluate the sensitivity to neutralino production and decay to light singlet Higgs bosons at the proposed [Formula: see text] GeV Circular Electron Positron Collider.

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.

scholarly journals The dark phases of the N2HDM

2020 ◽  
Vol 2020 (8) ◽  
Author(s):  
Isabell Engeln ◽  
Pedro Ferreira ◽  
M. Margarete Mühlleitner ◽  
Rui Santos ◽  
Jonas Wittbrodt
Keyword(s):  
Dark Matter ◽  
Large Hadron Collider ◽  
Standard Model ◽  
Hadron Collider ◽  
Higgs Doublet ◽  
Tree Level ◽  
Vacuum Structure ◽  
The Standard Model ◽  
Doublet Model ◽  
Specific Phase

Abstract We discuss the dark phases of the Next-to-2-Higgs Doublet model. The model is an extension of the Standard Model with an extra doublet and an extra singlet that has four distinct CP-conserving phases, three of which provide dark matter candidates. We discuss in detail the vacuum structure of the different phases and the issue of stability at tree-level of each phase. Taking into account the most relevant experimental and theoretical constraints, we found that there are combinations of measurements at the Large Hadron Collider that could single out a specific phase. The measurement of h125 → γγ together with the discovery of a new scalar with specific rates to τ+τ− or γγ could exclude some phases and point to a specific phase.

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