Observation of Diffractive<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">b</mml:mi></mml:math>-Quark Production at the Fermilab Tevatron

Affolder, A. A.; Akimoto, H.; Akopian, A.; Albrow, M.; Amaral, P.; Amendolia, S. R.; Amidei, D.; Antos̆, J.; Apollinari, G.; Arisawa, T.; Asakawa, T.; Ashmanskas, W.; Ataç, M.; Azzi, P.; Bacchetta, N.; Bailey, M. W.; Bailey, S.; Barbaro, P. de; Barbaro‐Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Barone, M.; Bauer, G.; Bedeschi, F.; Belforte, S.; Bellettini, G.; Bellinger, J.; Benjamin, D.; Bensinger, J. R.; Beretvas, A.; Berge, J. P.; Berryhill, J. W.; Bertolucci, S.; Bevensee, B.; Bhatti, A.; Bigongiari, C.; Binkley, M.; Bisello, D.; Blair, R. E.; Blocker, C.; Bloom, K.; Blumenfeld, B.; Blusk, B. S.; Bocci, A.; Bodek, A.; Bokhari, W.; Bolla, G.; Bonushkin, Y.; Borras, K.; Bortoletto, D.; Boudreau, J.; Brandl, A.; Brink, S. van den; Bromberg, C.; Bruner, N.; Buckley-Geer, E.; Budagov, J.; Budd, H. S.; Burkett, K.; Busetto, G.; Byon-Wagner, A.; Byrum, K. L.; Campbell, M.; Caner, A.; Carithers, W.; Carlson, J.; Carlsmith, D.; Cassada, J.; Castro, A.; Cauz, D.; Cerri, A.; Chang, P. 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doi:10.1103/physrevlett.84.232

Cited by 43 publications

(25 citation statements)

References 19 publications

(11 reference statements)

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“…which give the advantage to reduce experimentally systematic errors. The ratios have been measured in a range of final states at the Tevatron and, certain stable behaviors with a value near 1% has been displayed [35][36][37]. We have presented these ratios of cross sections of η c and η b in Table IV.…”

Section: A the Cross Sectionsmentioning

confidence: 92%

“…The central diffractive dissociation, double Pomeron or Reggeon exchange or Pomeron-Reggeon cross exchange (DD), is characterized by two intact forward hadrons and two rapidies. The experimental diffractive studies [32][33][34][35][36][37] have particularly drawn attention toward the understanding of diffractive production due to measurement data samples released by the LHC. Theoretically, the inclusive diffractive processes have been studied in Regge theory (also named resolved-Pomeron model) in Refs [38][39][40][41] and so on.…”

Section: Introductionmentioning

confidence: 99%

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Hard diffractive ηc,b hadroproduction at the LHC

2020

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In this paper, we investigate the inclusive diffractive hadroproduction for ηc and η b at the LHC energies. Based on the NRQCD factorization formalism and the resolved-Pomeron model for the quarkonium production mechanism, we estimate the rapidity, momentum fraction loss dependence of the cross section. We give prediction ratios for single and central diffractive processes with respect to non diffractive process. These inclusive processes are sensitive to gluon content of Pomeron for small-x and Reggeon for large-x, useful to study small and large-x physics and good to test different mechanism for ηc and η b production at the LHC. They also serve as the background to related exclusive processes thus should be predicted. Our results demonstrate that the Reggeon contribution of diffractive processes can be sizable, even sometimes dominant over Pomeron, and that its study can be useful to better constrain the Reggeon parton content. The experimental study of Reggeon can be carried out in certain kinematic windows.

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Section: A the Cross Sectionsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Hard diffractive ηc,b hadroproduction at the LHC

2020

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“…FIG . 14: The total cross section of diffractive cc, bb and tt pairs production as function of energy in comparison with experimental data from E690 [63] and CDF [64] experiments (left panel) and the differential cross section as function of fraction x 1 of the initial proton momentum carried by the charm quark (right panel) [9].…”

Section: Diffractive Non-abelian Radiationmentioning

confidence: 99%

“…pp energy are shown in Fig. 14. The experimental data points available from E690 [63] and CDF [64] experiments have been compared with theoretical predictions evaluated with corresponding phase space constraints (for more details, see Ref. [9]).…”

Section: Diffractive Non-abelian Radiationmentioning

confidence: 99%

Diffractive Bremsstrahlung in Hadronic Collisions

Pasechnik

Kopeliovich

Potashnikova

2015

Advances in High Energy Physics

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Production of heavy photons (Drell-Yan), gauge bosons, Higgs bosons, heavy flavors, which is treated within the QCD parton model as a result of hard parton-parton collision, can be considered as a bremsstrahlung process in the target rest frame. In this review, we discuss the basic features of the diffractive channels of these processes in the framework of color dipole approach. The main observation is a dramatic breakdown of diffractive QCD factorisation due to the interplay between soft and hard interactions, which dominates these processes. This observation is crucial for phenomenological studies of diffractive reactions in high-energy hadronic collisions.

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“…This picture was tried to be used also at hadronic collisions. A few processes were studied experimentally at the Tevatron [10][11][12][13][14][15][16][17][18][19][20] including the dijet production.…”

Section: Introductionmentioning

confidence: 99%

Single-diffractive production of dijets within the kt -factorization approach

et al. 2017

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We discuss single-diffractive production of dijets. The cross section is calculated within the resolved pomeron picture, for the first time in the k t -factorization approach, neglecting transverse momentum of the pomeron. We use Kimber-Martin-Ryskin unintegrated parton (gluon, quark, antiquark) distributions (UPDF) both in the proton as well as in the pomeron or subleading reggeon. The UPDFs are calculated based on conventional MMHT2014nlo PDFs in the proton and H1 collaboration diffractive PDFs used previously in the analysis of diffractive structure function and dijets at HERA. For comparison we present results of calculations performed within collinear-factorization approach. Our results remaind those obtained in the NLO approach. The calculation is (must be) supplemented by the so-called gap survival factor which may, in general, depend on kinematical variables. We try to describe the existing data from Tevatron and make detailed predictions for possible LHC measurements. Several differential distributions are calculated. The E T , η and xp distributions are compared with the Tevatron data. A reasonable agreement is obtained for the first two distributions. The last one requires to introduce a gap survival factor which depends on kinematical variables. We discuss how the phenomenological dependence on one kinematical variable may influence dependence on other variables such as E T and η. Several distributions for the LHC are shown.

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Observation of Diffractiveb-Quark Production at the Fermilab Tevatron

Cited by 43 publications

References 19 publications

Hard diffractive ηc,b hadroproduction at the LHC

Hard diffractive ηc,b hadroproduction at the LHC

Diffractive Bremsstrahlung in Hadronic Collisions

Single-diffractive production of dijets within the kt -factorization approach

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