FIRST MEASUREMENT OF INTERFERENCE FRAGMENTATION ON A TRANSVERSELY POLARIZED HYDROGEN TARGET

Using collision spectroscopy based on precision measurements of the kinetic energy of projectile ions that capture an electron, we measured the state selective electron capture cross sections of formation of He^+(n) ions at collision 3^He^{2 +} ions with an energy of E = 1.4-10 keV/a.m.u. with hydrogen atoms. The atomic hydrogen target with a degree of dissociation 78% at a temperature of tungsten dissociation cell 2180K has been made.

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Design of a solid hydrogen target

Cryogenics ◽

10.1016/0011-2275(76)90013-8 ◽

1976 ◽

Vol 16 (8) ◽

pp. 503-504 ◽

Cited By ~ 1

Author(s):

Yu V. Gorodkov ◽

G.P. Eliseev ◽

V.A. Lyubimov ◽

A.S Mileshkin

Keyword(s):

Solid Hydrogen ◽

Hydrogen Target

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Measurements of differential cross sections and polarization effects in pion-proton elastic scattering in the momentum range 875 to 1579 MeV/ c

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1966.0024 ◽

1966 ◽

Vol 289 (1419) ◽

pp. 449-462 ◽

Cited By ~ 4

Keyword(s):

Elastic Scattering ◽

Cross Sections ◽

Differential Cross ◽

Pulse Height ◽

Magnetic Core ◽

Differential Cross Sections ◽

Liquid Hydrogen Target ◽

Hydrogen Target ◽

Momentum Range ◽

Polarization Effects

In this paper we discuss some measurements that have been made at Nimrod of differential cross sections and polarization effects in πp elastic scattering. The principal aims of this work were to determine the spins and parities of the N * 1/2 (1688) and the N* 3/2 (1920) isobars and to examine the behaviour of the π+p elastic scattering cross section at momenta around 950MeV/ c where a shoulder exists in the total cross sections. Table 1 gives the values of the momenta at which the measurements were made and figure 1 illustrates their relation to other work that has been done in or near this region. A schematic diagram of the experimental arrangement for measuring the differential cross sections is shown in figure 2. An array of scintillation counters, used in conjunction with a coincidence matrix detected particles scattered from a 4 in. long liquid hydrogen target. All events were accepted in which two and only two outgoing particles were detected in coincidence by any combination of two counters on opposite sides of the beam. The number of counts for each combination was stored in the magnetic core store of a 512 channel pulse height analyser

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Comment on “Effect of a polarized hydrogen target on the polarization of a stored proton beam”

Physical Review E ◽

10.1103/physreve.73.028501 ◽

2006 ◽

Vol 73 (2) ◽

Cited By ~ 2

Author(s):

W. W. MacKay ◽

C. Montag

Keyword(s):

Proton Beam ◽

Hydrogen Target

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Measurements of the reaction p̄p→φη of antiproton annihilation at rest at three hydrogen target densities

Physics Letters B ◽

10.1016/s0370-2693(98)00633-9 ◽

1998 ◽

Vol 432 (3-4) ◽

pp. 427-435 ◽

Cited By ~ 9

Author(s):

V Alberico ◽

A Bertin ◽

M Bruschi ◽

M Capponi ◽

S De Castro ◽

...

Keyword(s):

Antiproton Annihilation ◽

Hydrogen Target

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Light-Meson Spectroscopy at GlueX

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194518600297 ◽

2018 ◽

Vol 46 ◽

pp. 1860029 ◽

Cited By ~ 8

Author(s):

Alexander Austregesilo

Keyword(s):

Light Meson ◽

Meson Spectrum ◽

Amplitude Analysis ◽

Hydrogen Target ◽

Data Set ◽

Early Results ◽

Meson Spectroscopy ◽

Beam Asymmetries ◽

Linearly Polarized ◽

Pseudo Scalar

GlueX at Jefferson Lab aims to study the light meson spectrum with an emphasis on the search for light hybrid mesons. To this end, a linearly-polarized [Formula: see text]GeV photon beam impinges on a hydrogen target contained within a hermetic detector with near-complete neutral and charged particle coverage. In 2016, the experiment completed its commissioning and subsequently started to take data in its design configuration. With the size of the data set so far, GlueX already exceeds previous experiments for polarized photoproduction in this energy regime. A selection of early results will be presented, focusing on beam asymmetries for pseudo-scalar and vector mesons. The potential to make significant contributions to the field of light-meson spectroscopy is highlighted by the observation of several known meson resonances. Furthermore, the strategy to map the light meson spectrum with amplitude analysis tools will be outlined.

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