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 INTERNATIONAL LINEAR COLLIDER

2013 ◽  
Vol 28 (27) ◽  
pp. 1330039 ◽  
Author(s):  
BARRY BARISH ◽  
JAMES E. BRAU
Keyword(s):  
Particle Physics ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
Collider Physics ◽  
International Consensus ◽  
Electron Positron ◽  
Superconducting Radio Frequency ◽  
Energy Frontier ◽  
Accelerator Design

In this paper, we describe the key features of the recently completed technical design for the International Linear Collider (ILC), a 200–500 GeV linear electron–positron collider (expandable to 1 TeV) that is based on 1.3 GHz superconducting radio-frequency (SCRF) technology. The machine parameters and detector characteristics have been chosen to complement the Large Hadron Collider physics, including the discovery of the Higgs boson, and to further exploit this new particle physics energy frontier with a precision instrument. The linear collider design is the result of nearly 20 years of R&D, resulting in a mature conceptual design for the ILC project that reflects an international consensus. We summarize the physics goals and capability of the ILC, the enabling R&D and resulting accelerator design, as well as the concepts for two complementary detectors. The ILC is technically ready to be proposed and built as a next generation lepton collider, perhaps to be built in stages beginning as a Higgs factory.

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 PRECISION CALCULATIONS FOR FUTURE COLLIDERS

2008 ◽  
Vol 17 (05) ◽  
pp. 826-844 ◽  
Author(s):  
U. BAUR
Keyword(s):  
Large Hadron Collider ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
The Status

I discuss the motivations for, and the status of, precision calculations for the Large Hadron Collider (LHC) and the planned International Linear Collider (ILC).

scholarly journals Echoes of 2HDM inflation at the collider experiments

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
Tanmoy Modak ◽  
Kin-ya Oda
Keyword(s):  
Large Hadron Collider ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
Higgs Doublet ◽  
Lepton Colliders ◽  
The Future ◽  
Doublet Model ◽  
Near Degeneracy ◽  
Two Higgs Doublet Model

AbstractWe study the correlation between the constraints on general two Higgs doublet model from Higgs inflation and from collider experiments. The parameter space receives meaningful constraints from direct searches at the large hadron collider and from flavor physics if $$m_H$$ m H , $$m_A$$ m A , and $$m_{H^\pm }$$ m H ± are in the sub-TeV range, where H, A, and $$H^\pm $$ H ± are the CP even, CP odd, and charged Higgs bosons, respectively. We find that in the parameter region favored by the Higgs inflation, H, A, and $$H^\pm $$ H ± are nearly degenerate in mass. We show that such near degeneracy can be probed directly in the upcoming runs of the Large Hadron Collider, while the future lepton colliders such as the International Linear Collider and the future circular collider would provide complementary probes.

Linear Colliders

2014 ◽  
Vol 07 ◽  
pp. 115-136
Author(s):  
Akira Yamamoto ◽  
Kaoru Yokoya
Keyword(s):  
Linear Collider ◽  
International Linear Collider ◽  
Electron Positron ◽  
Linear Colliders ◽  
Technical Design Report ◽  
Superconducting Rf ◽  
Technical Features ◽  
Energy Frontier ◽  
Conceptual Design Report

An overview of linear collider programs is given. The history and technical challenges are described and the pioneering electron–positron linear collider, the SLC, is first introduced. For future energy frontier linear collider projects, the International Linear Collider (ILC) and the Compact Linear Collider (CLIC) are introduced and their technical features are discussed. The ILC is based on superconducting RF technology and the CLIC is based on two-beam acceleration technology. The ILC collaboration completed the Technical Design Report in 2013, and has come to the stage of "Design to Reality." The CLIC collaboration published the Conceptual Design Report in 2012, and the key technology demonstration is in progress. The prospects for further advanced acceleration technology are briefly discussed for possible long-term future linear colliders.

scholarly journals Twenty years of searching for the Higgs boson: Exclusion at LEP, discovery at LHC

2014 ◽  
Vol 29 (04) ◽  
pp. 1430004 ◽  
Author(s):  
Dezső Horváth
Keyword(s):  
Experimental Data ◽  
Higgs Boson ◽  
Large Hadron Collider ◽  
Standard Model ◽  
Particle Physics ◽  
Hadron Collider ◽  
Elementary Particles ◽  
Electron Positron ◽  
Large Electron Positron

The 40 years old Standard Model, the theory of particle physics, seems to describe all experimental data very well. All of its elementary particles were identified and studied apart from the Higgs boson until 2012. For decades, many experiments were built and operated searching for it, and finally, the two main experiments of the Large Hadron Collider (LHC) at CERN, CMS and ATLAS, in 2012 observed a new particle with properties close to those predicted for the Higgs boson. In this paper, we outline the search story: the exclusion of the Higgs boson at the Large Electron Positron (LEP) collider, and its observation at LHC.

The Discovery of a Higgs Particle at the Large Hadron Collider

2015 ◽  
Vol 23 (1) ◽  
pp. 57-70
Author(s):  
Aleandro Nisati
Keyword(s):  
Higgs Boson ◽  
Large Hadron Collider ◽  
Standard Model ◽  
Particle Physics ◽  
Hadron Collider ◽  
Scientific Programme ◽  
Fundamental Particle ◽  
The Standard Model ◽  
8 Tev ◽  
The Masses

The Large Hadron Collider (LHC) at CERN is the highest energy machine for particle physics research ever built. In the years 2010–2012 this accelerator has collided protons to a centre-mass-energy up to 8 TeV (note that 1 TeV corresponds to the energy of about 1000 protons at rest; the mass of one proton is about 1.67×10–24 g). The events delivered by the LHC have been collected and analysed by four apparatuses placed alongside this machine. The search for the Higgs boson predicted by the Standard Model and the search for new particles and fields beyond this theory represent the most important points of the scientific programme of the LHC. In July 2012, the international collaborations ATLAS and CMS, consisting of more than 3000 physicists, announced the discovery of a new neutral particle with a mass of about 125 GeV, whose physics properties are compatible, within present experimental and theoretical uncertainties, to the Higgs boson predicted by the Standard Model. This discovery represents a major milestone for particle physics, since it indicates that the hypothesized Higgs mechanism seems to be responsible for the masses of elementary particles, in particular W± and Z0 bosons, as well as fermions (leptons and quarks). The 2013 Physics Nobel Prize has been assigned to F. Englert and P. Higgs, ‘for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles, and which recently was confirmed through the discovery of the predicted fundamental particle, by the ATLAS and CMS experiments at CERN's Large Hadron Collider’.

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.

DEPOLARIZATION AND LUMINOSITY ISSUES IN A HIGH ENERGY LINEAR COLLIDER

2000 ◽  
Vol 15 (16) ◽  
pp. 2555-2564
Author(s):  
S. CHESHKOV ◽  
T. TAJIMA
Keyword(s):  
Linear Collider ◽  
Center Of Mass ◽  
High Energy ◽  
Collision Point ◽  
Single Beam ◽  
Center Of Mass Energy ◽  
Electron Positron ◽  
Spin Depolarization ◽  
Positron Beams ◽  
Energy Frontier

In the next energy frontier of an electron–positron (electron–electron) linear collider its demand of both extreme high energy and high luminosity leads to a high production of W+W- (W- particles). In order to delineate processes of interest, it is advantageous to polarize the electron and positron beams, as this tends to suppress the above known processes and thus heightens the sensitivity to the sought-after processes. We investigate the possible depolarization of the electron (positron) beams in the acceleration stages as well as in the collision point. We take the example of the laser wakefield accelerator design at 5 TeV center of mass energy of colliding beams. We find that in this design the spin depolarization due to the stage jitter noise is certainly negligible, and the depolarization due to the self-generated fields at the collision point is still tolerable. We also consider several lower energy scenarios as they might be possible to achieve in a single beam driven acceleration stage.

Sign in / Sign up

Export Citation Format

Share Document