Exotic final-state interaction in deuteron break-up and Δ N threshold parameters

Alberi, G.; Baldracchini, F.

doi:10.1088/0305-4616/4/5/005

Cited by 26 publications

(38 citation statements)

References 22 publications

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“…The cleanest process that contains these two features is diffractive dissociation. The pp-elastic scattering slope parameter, which reflects the area of the scattered object is b ≈ 12GeV −2 ∼ 1/Λ 2 QCD [38]. When the Reggeon collides into such a region on the hadronic disk, in some cases it could alter the local vacuum and place it in a metastable state, such as the Savvidy vacuum.…”

Section: Discussionmentioning

confidence: 99%

GUT cosmic magnetic fields in a warm inflationary universe

1999

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Sources of magnetic fields from grand unified theories are studied in the warm inflation regime. A ferromagnetic Savvidy vacuum scenario is presented that yields observationally interesting large scale magnetic fields. As an intermediate step, a general analysis is made of defect production at the onset of warm inflation and monopole constraints are obtained. Many features of this Savvidy vacuum scenario are applicable within a supercooled inflation regime and these points are discuused.

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Section: Discussionmentioning

confidence: 99%

GUT cosmic magnetic fields in a warm inflationary universe

1999

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“…6c and 6d. For example relative to the inclusive E T -spectra, the F(IS)DPE E T -spectra decreases for the A,B,C,D, SG models at E T = 22GeV by the additional factors 6,9,6,9,3 respectively and at E T = 30GeV by the additional factors 100, 250, 100, 250, 27 respectively. This faster decline for the F(IS)DPE E T spectra arises because the edge (i.e.…”

Section: Dømentioning

confidence: 95%

“…A primary goal of diffractive hard scattering physics is to unify the QCD picture of the pomeron with the phenomenological Regge physics description (for a review of Regge phenomenology applied to diffractive physics please see [3,4]). Hard double pomeron exchange (DPE) processes are useful in addressing this question, since it turns out the QCD and Regge physics description of these processes have some distinct qualitative differences, which are best expressed in the context of hard factorization.…”

Section: Introductionmentioning

confidence: 99%

Tale of two hard Pomerons

Berera

2000

Phys. Rev. D

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Two mechanisms are examined for hard double pomeron exchange dijet production, the factorized model of Ingelman-Schlein and the nonfactorized model of lossless jet production which exhibits the Collins-Frankfurt-Strikman mechanism. Comparison between these two mechanisms are made of the total cross section, E T -spectra, and mean rapidity spectra. For both mechanisms, several specific models are examined with the cuts of CDF, DØ and representative cuts of LHC. Distinct qualitative differences are predicted by the two mechanisms for the CDF y + -spectra and for the E T -spectra for all three experimental cuts. The preliminary CDF and DØ experimental data for this process are interpreted in terms of these two mechanisms. The y + -spectra of the CDF data is suggestive of domination by the factorized Ingelman-Schlein mechanism, whereas the DØ data shows no greater preference for either mechanism. An inconsistency is found amongst all the theoretical models in attempting to explain the ratio of the cross sections given by the data from these two experiments.PACS number(s): 13.85.-t, 12.38.Qk, 13.87.Ce hep-ph/9910405 In press Physical Review D, 2000 *

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“…A peripheral b-space structure for a SD implies dips or breaks in dσ SD dt at small t, where the details depend on form of the input taken in the eikonal calculation. Some indications for such a structure have been observed in ISR SD experiment with a very small diffractive mass [23]. More accurate experimental data are required to investigate this aspect further.…”

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confidence: 92%

A two channel calculation of screening corrections

Gotsman¹,

Levin²,

Maor³

1999

Physics Letters B

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We present a two channel eikonal calculation in which the rescattering through a diffractive channel is included in addition to the elastic channel. Considering the spread of the experimental data, we find that we can obtain a very good description of σ tot , σ el and B el in the ISR -Tevatron energy range. In this range of energy the diffractive channel, that was included in our calculation, leads to a ratio of σ SD /σ el which varies between 1 and 0.5 for 20 GeV ≤ √ s ≤ 14 T eV in agreement with the experimental data. The calculated survival probability of dijet production with a large rapidity gap is consistent with the data. *

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Exotic final-state interaction in deuteron break-up and Δ N threshold parameters

Cited by 26 publications

References 22 publications

GUT cosmic magnetic fields in a warm inflationary universe

GUT cosmic magnetic fields in a warm inflationary universe

Tale of two hard Pomerons

A two channel calculation of screening corrections

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