Li-α CLUSTER STATES IN 12B USING 8Li + 4He INVERSE KINEMATICS ELASTIC SCATTERING

2011 ◽  
Vol 20 (04) ◽  
pp. 1026-1029 ◽  
Author(s):  
D. TORRESI ◽  
M. LATTUADA ◽  
A. MUSUMARRA ◽  
M.G. PELLEGRITI ◽  
M. ROVITUSO ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Center Of Mass ◽  
Silicon Detector ◽  
Inverse Kinematic ◽  
Thick Target ◽  
Alpha Particles ◽  
Radioactive Beam ◽  
Time Interval ◽  
Scattering Method ◽  
Center Of Mass Energy

The 8Li elastic scattering on a 4He gas target was studied by means of the Inverse Kinematic Thick Target scattering method (TTIK) in order to investigate cluster configurations in excited states of 12 B . A 8 Li beam, at Ec.m. = 10.2 MeV , was provided by the EXCYT radioactive beam facility at Catania. The beam, while passing through the helium thick target decreases its energy, thus exploring the 8 Li -α center-of-mass energy range 2.7 MeV ≤ECM ≤9.6 MeV . Four Δ E - E silicon detector telescopes were used to detect the recoiling alpha particles. The time interval between the 8 Li passing through a micro-channel plate foil, placed at the entrance of the chamber, and the detection of the α particles by the Δ E detectors was also measured. The time measurement allows to disentangle elastic from reactions events, otherwise impossible from energy measurements. This can be considered as an improvement of the TTIK method. In this paper the used experimental technique and the obtained preliminary results will be presented.

Electron-Positron Elastic Scattering at a Center-of-Mass Energy of 4 GeV

1973 ◽  
Vol 30 (11) ◽  
pp. 507-510 ◽  
Author(s):  
R. Madaras ◽  
R. Averill ◽  
G. Hanson ◽  
A. Hofmann ◽  
J. Koch ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Center Of Mass ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Electron Positron

scholarly journals Comparison of small-angle pp̄ and pp elastic scattering at 52.8 GeV center-of-mass energy at the CERN intersecting storage rings

1983 ◽  
Vol 120 (4-6) ◽  
pp. 460-464 ◽  
Author(s):  
N. Amos ◽  
M.M. Block ◽  
G.J. Bobbink ◽  
M. Botje ◽  
J. Debaisieux ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Small Angle ◽  
Center Of Mass ◽  
Storage Rings ◽  
Mass Energy ◽  
Center Of Mass Energy

Differential cross-section for 3He4He elastic scattering at 44.5 MeV center-of-mass energy

1971 ◽  
Vol 34 (3) ◽  
pp. 171-173 ◽  
Author(s):  
W. Fetscher ◽  
K. Sattler ◽  
N.C. Schmeing ◽  
E. Seibt ◽  
Ch. Weddigen ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Center Of Mass ◽  
Mass Energy ◽  
Center Of Mass Energy

scholarly journals Feasibility study of TPC tracker detector for the circular collider

2020 ◽  
Vol 35 (15n16) ◽  
pp. 2041014 ◽  
Author(s):  
Zhiyang Yuan ◽  
Huirong Qi ◽  
Haiyun Wang ◽  
Hongliang Dai ◽  
Yuanbo Chen ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Particle Physics ◽  
Center Of Mass ◽  
Silicon Detector ◽  
Concept Design ◽  
Great Opportunity ◽  
Baseline Design ◽  
Detector Module ◽  
Center Of Mass Energy ◽  
Time Projection

The discovery of a SM Higgs boson at the LHC brought about great opportunity to investigate the feasibility of a Circular Electron Positron Collider (CEPC) operating at center-of-mass energy of 240 GeV, as a Higgs factory, with designed luminosity of about [Formula: see text]. The CEPC provides a much cleaner collision environment than the LHC, it is ideally suited for studying the properties of Higgs boson with greater precision. Another advantage of the CEPC over the LHC is that the Higgs boson can be detected through the recoil mass method by only reconstructing [Formula: see text] boson decay without examining the Higgs decays. In Concept Design Report (CDR), the circumference of CEPC is 100 km, with two interaction points available for exploring different detector design scenarios and technologies. The baseline design of CEPC detector is an ILD-like concept, with a superconducting solenoid of 3.0 Tesla surrounding the inner silicon detector, TPC tracker detector and the calorimetry system. Time Projection Chambers (TPCs) have been extensively studied and used in many fields, especially in particle physics experiments, including STAR and ALICE. The TPC detector will operate in continuous mode on the circular machine. To fulfill the physics goals of the future circular collider and meet Higgs/[Formula: see text] run, a TPC with excellent performance is required. We have proposed and investigated the ions controlling performance of a novel configuration detector module. The aim of this study is to suppress ion backflow (IBF) continually. In this paper, some update results of the feasibility and limitation on TPC detector technology R&D will be given using the hybrid gaseous detector module.

Electron-Positron Elastic Scattering at 5 GeV Center-of-Mass Energy

1974 ◽  
Vol 32 (9) ◽  
pp. 483-485 ◽  
Author(s):  
H. Newman ◽  
R. Averill ◽  
J. Eshelman ◽  
L. Law ◽  
M. E. Law ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Center Of Mass ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Electron Positron

Exploring Baryon Rich Matter with Heavy-Ion Collisions

2019 ◽  
Vol 64 (7) ◽  
pp. 583 ◽  
Author(s):  
S. Harabasz
Keyword(s):  
Center Of Mass ◽  
Heavy Ion ◽  
State Density ◽  
Heavy Nuclei ◽  
First Order ◽  
Center Of Mass Energy ◽  
Ion Collisions ◽  
Deconfinement Phase Transition ◽  
Ground State Density

Collisions of heavy nuclei at (ultra-)relativistic energies provide a fascinating opportunity to re-create various forms of matter in the laboratory. For a short extent of time (10-22 s), matter under extreme conditions of temperature and density can exist. In dedicated experiments, one explores the microscopic structure of strongly interacting matter and its phase diagram. In heavy-ion reactions at SIS18 collision energies, matter is substantially compressed (2–3 times ground-state density), while moderate temperatures are reached (T < 70 MeV). The conditions closely resemble those that prevail, e.g., in neutron star mergers. Matter under such conditions is currently being studied at the High Acceptance DiElecton Spectrometer (HADES). Important topics of the research program are the mechanisms of strangeness production, the emissivity of matter, and the role of baryonic resonances herein. In this contribution, we will focus on the important experimental results obtained by HADES in Au+Au collisions at 2.4 GeV center-of-mass energy. We will also present perspectives for future experiments with HADES and CBM at SIS100, where higher beam energies and intensities will allow for the studies of the first-order deconfinement phase transition and its critical endpoint.

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