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FAST TARGET FRAGMENTS IN INTERACTIONS OF RELATIVISTIC NUCLEI WITH PHOTOEMULSION. (IN RUSSIAN)

Antonchik, V.A. ; Bakaev, V.A. ; Bogdanov, V.G. ; et al.

Yad.Fiz. 46 (1987) 1344-1352, 1987.

Inspire Record 256945 DOI 10.17182/hepdata.2434

None

38 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Study of the photon remnant in resolved photoproduction at HERA

The ZEUS collaboration Derrick, M. ; Krakauer, D. ; Magill, S. ; et al.

Phys.Lett.B 354 (1995) 163-177, 1995.

Inspire Record 392038 DOI 10.17182/hepdata.44946

Photoproduction at HERA is studied in $ep$ collisions, with the ZEUS detector, for $\gamma p$ centre-of-mass energies ranging from 130-270 GeV. A sample of events with two high-$p_T$ jets ($p_T > 6$ GeV, $\eta <1.6$) and a third cluster in the approximate direction of the electron beam is isolated using a clustering algorithm. These events are mostly due to resolved photoproduction. The third cluster is identified as the photon remnant. Its properties, such as the transverse and longitudinal energy flows around the axis of the cluster, are consistent with those commonly attributed to jets, and in particular with those found for the two jets in these events. The mean value of the photon remnant $p_T$ with respect to the beam axis is measured to be $2.1 \pm 0.2$ GeV, which demonstrates substantial mean transverse momenta for the photon remnant.

3 data tables

Table 1

Pseudorapidity distribution of the third cluster corrected to the hadron level.

Table 2

Corrected PT distribution of the third cluster corrected to the hadron level.

Table 3

Corrected Energy distribution of the third cluster corrected to the hadron level.