Measurement of the proton-antiproton pair production from two-photon collisions at TRISTAN

Hamasaki, Hiroshi; Abe, K.; Amako, K.; Arai, Y.; Asano, Y.; Chiba, M.; Chiba, Yasuo; Daigo, M.; Fukawa, M.; Fukushima, Y.; Haba, J.; Hanai, H.; Hemmi, Y.; Higuchi, M.; Hirose, T.; Homma, Y.; Ishihara, N.; Iwata, Y.; Kanzaki, J.; Kikuchi, R.; Kondo, T.; Korhonen, T.; Kurashige, H.; Matsuda, E. K.; Matsui, Takayuki; Miyake, K.; Mori, Shigeki; Nagashima, Y.; Nakagawa, Y.; Nakamura, T.; Nakano, I.; Ogawa, K.; Ohama, T.; Ohsugi, T.; Ohyama, H.; Okabe, K.; Okamoto, Atsushi; Ono, A.; Pennanen, J.; Sakamoto, H.; Sakuda, M.; Sato, Minoru; Sato, Nobuaki; Shioden, M.; Shirai, J.; Sumiyoshi, T.; Takada, Yoshihisa; Takasaki, F.; Takita, M.; Tamura, N.; Tatsumi, Daisuke; Tobimatsu, K.; Tsuboyama, T.; Uehara, S.; Unno, Y.; Watanabe, Toru; Watase, Y.; Yabuki, F.; Yamada, Y.; Yamagata, T.; Yonezawa, Yasushige; Yoshida, Hajime; Yusa, K.

doi:10.1016/s0370-2693(97)00728-4

Cited by 23 publications

(27 citation statements)

References 25 publications

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“…In both cases, the measured cross section and the angular distribution are largely in agreement with the previous measurements [3,4,5,6]. As an example, we show the results 1 [7] for the pp measured total cross section in fig.…”

Section: Experimental Statussupporting

confidence: 88%

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Hadron pair photoproduction and the Veneziano model

Odagiri

2005

Nuclear Physics A

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We first suppose that low-energy hadron pair photoproduction reactions γ ( * ) γ ( * ) → hh are dominated by s-channel resonance contributions. Their normalization is then calculated by their correspondence with the Reggeon term in the Regge parametrization of the γh total cross sections. For the case of pp, we make use of the measured γp total cross section, and for the case of K + K − , we make use of the corresponding total cross section that is estimated using Regge factorization. For hadrons that have no such data, we can only provide rough estimation based on the additive quark rule. As an effective approach that is convenient and parameter-free, we adopt the Veneziano model in the simplest form. The model is only applicable to the region of low centre-of-mass energy. When the transverse momentum is large, perturbative QCD takes over, whereas in the Regge region, it is known that the Regge pole picture fails in photoproduction. Despite the shortcomings of the model, we find that the parameter-free amplitudes offer a sound description of the data at hand.

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Section: Experimental Statussupporting

confidence: 88%

“…2. We should note that the difference between the Belle measurement and the other experiments has been resolved and the latest results [1] are largely in agreement with the data from VENUS [3] and CLEO [4].…”

Section: Experimental Statussupporting

confidence: 77%

Hadron pair photoproduction and the Veneziano model

Odagiri

2005

Nuclear Physics A

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“…The predictions for the angular distributions are in agreement with the CLEO data too. The diquark model predictions are also in agreement with the recent VENUS data [19].…”

Section: Real Compton Scattering (Rcs)supporting

confidence: 85%

The Diquark Model for Exclusive Reactions

Kroll

1999

N* Physics and Nonperturbative Quantum Chromodynamics

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“…[1] that the ultraperipheral collisions (UPC) of heavy ions may provide new information on γγ → pp interactions compared to the presently available data from e + e − collisions. The baryon pair production via γγ fusion was measured at electron-positron colliders by various experimental groups: CLEO [2] at CESR, VENUS [3] at TRISTAN, OPAL [4] and L3 [5] at LEP, and Belle [6] at KEKB.…”

Section: Introductionmentioning

confidence: 99%

Production of $p\bar {p}$ Pairs in UPC at the LHC

Lebiedowicz¹,

Kłusek-Gawenda²,

Szczurek³

et al. 2019

Acta Phys. Pol. B Proc. Suppl.

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We discuss production of pp pairs in two-photon interactions in heavyion collisions. We present predictions for the ultraperipheral, ultrarelativistic, heavy-ion collisions (UPC) 208 P b 208 P b → 208 P b 208 P b pp. The parameters of vertex form factors are adjusted to the Belle data for the γγ → pp reaction. To described the Belle data we include the proton-exchange, the f 2 (1270) and f 2 (1950) s-channel exchanges, as well as the hand-bag mechanism. Then, the total cross section and several differential distributions for experimental cuts corresponding to the LHC experiments are presented. The distribution in y dif f , the rapidity distance between the proton and antiproton, is particularly interesting. We find the total cross sections: 100 µb for the ALICE cuts, 160 µb for the ATLAS cuts, 500 µb for the CMS cuts, and 104 µb taking into account the LHCb cuts. This opens a possibility to study the γγ → pp process in UPC at the LHC.

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Measurement of the proton-antiproton pair production from two-photon collisions at TRISTAN

Cited by 23 publications

References 25 publications

Hadron pair photoproduction and the Veneziano model

Hadron pair photoproduction and the Veneziano model

The Diquark Model for Exclusive Reactions

Production of $p\bar {p}$ Pairs in UPC at the LHC

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