JMP  Vol.3 No.8 , August 2012
On Self-Similarity of Top Production at Tevatron
This paper presents the results of analysis of the D? 1.0 fb-1 data on top-quark differential cross section measurements at the Fermilab Tevatron collider at √s= 1960 GeV in the framework of z-scaling approach. The flavor independence of scaling function Ψ(z)observed in pp and pp interactions over a wide collision energy range √s= 19-1960 GeV has been verified. This property of Ψ(z) was found for different hadrons – from π-mesons up to Υ particles. The flavor independence of Ψ(z) is used as indication on self-similarity of the top-quark production. A tendency to saturation of Ψ(z) at low z for top-quark production has been confirmed. Momentum fraction x1 of the incoming (anti)protons as a function of the scaled transverse momentum pT/m and masses of heavy mesons is studied. We anticipate that the data on low- and high-pT inclusive spectra of the top-quark production at the Tevatron and LHC energies could be of interest to verify self-similarity over a wide range of masses and different flavor content of produced particles.

Cite this paper
M. Tokarev and I. Zborovský, "On Self-Similarity of Top Production at Tevatron," Journal of Modern Physics, Vol. 3 No. 8, 2012, pp. 815-820. doi: 10.4236/jmp.2012.38106.
[1]   T. Affolder, et al., “Measurement of the Top Quark pT Distribution,” Physical Review Letters, Vol. 87, No. 10, 2001, Article ID: 102001. doi:10.1103/PhysRevLett.87.102001

[2]   V. M. Abazov et al., “Dependence of the tbart Production Cross Section on the Transverse Momentum of the Top Quark,” Physics Letters B, Vol. 693, No. 5, 2010, pp. 515-521. doi:10.1016/j.physletb.2010.09.011

[3]   F. Abe, et al., “Observation of Top Quark Production in pbarp Collisions with Collider Detector at Fermilab,” Physical Review Letters, Vol. 74, No. 14, 1995, pp. 2626- 2631.

[4]   S. Abachi et al., “Observation of the Top Quark,” Physical Review Letters, Vol. 74, No.14, 1995, pp. 2632–2637.

[5]   E. Laenen, “Top Physics: Theoretical Aspects,” Physics at the LHC 2011, Perugia, 5-11 June 2011.

[6]   A. Garcia-Bellido, “Top Quark Physics at the Tevatron,” Physics at LHC 2011, Perugia, 6-11 June, 2011.

[7]   Y. Peters, “Top Quark Properties,” XXXI PHYSICS IN COLLISION, Vancouver, 28 August-1 September 2011.

[8]   E. Shabalina, “Particle Physics and Cosmology,” 2010.

[9]   R. Kehoe, M. Narain, A. Kumar, “Review of Top Quark Physics Results,” International Journal of Modern Phys- ics A, Vol. 23, No. 3-4, 2008, pp. 353-470. doi:10.1142/S0217751X08039293

[10]   W. Wagner, “Top Quark Physics in Hadron Collisions,” Reports on Progress in Physics, Vol. 68, No. 10, 2005, pp. 2409-2494. doi:10.1088/0034-4885/68/10/R03

[11]   A. Quadt, “Top Quark Physics at Hadron Colliders,” European Physical Journal C, Vol. 48, No. 3, 2006, pp. 835-1000. doi:10.1140/epjc/s2006-02631-6

[12]   E. W. N. Glover, et al., “Top Quark Physics at Colliders,” Acta Physica Polonica B, Vol. 35, No. 11, 2004, pp. 2671-2694.

[13]   I. Zborovsky, Yu. Panebratsev, M. Tokarev and G. ?koro, “z-Scaling in Hadron-Hadron Collisions at High Ener- gies,” Physical Review D, Vol. 54, No. 9, 1996, pp. 5548- 5557. doi:10.1103/PhysRevD.54.5548

[14]   M. Tokarev, I. Zborovsky, Yu. Panebratsev and G. ?koro, “A-Dependence of z-Scaling,” International Journal of Modern Physics A, Vol. 16, No. 7, 2001, pp. 1281-1301. doi:10.1142/S0217751X01003391

[15]   I. Zborovsky and M. V. Tokarev, “Generalized z-Scaling in Proton-Proton Collisions at High Energies,” Physical Review D, Vol. 75, No. 9, 2007, Article ID: 094008.

[16]   I. Zborovsky and M.V. Tokarev, “New Properties of z- Scaling: Flavor Independence and Saturation at Low z,” International Journal of Modern Physics A, Vol. 24, No. 7, 2009, pp. 1417-1442. doi:10.1142/S0217751X09042992

[17]   V. Khachatryan, et al., Transverse Momentum and Pseudorapidity Distributions of Charged Hadrons in pp Collisions at = 0.9 and 2.36 TeV,” Journal of High En- ergy Physics, Vol. 02, 2010, Article ID: 041.

[18]   V. Khachatryan, et al., “Strange Particle Production in pp Collisions at = 0.9 and 7 TeV,” Journal of High Energy Physics, Vol. 5, 2011, Article ID: 064.

[19]   S. Chatrchyan, et al., “Measurement of the Inclusive Jet Cross Section in pp Collisions at =7 TeV,” Physical Review Letters, Vol. 107, No. 13, 2011, Article ID: 132001.

[20]   J. Zhang (for ATLAS Collaboration), XIX International Workshop DIS2011, 11-15 April 2011, Newport News.

[21]   M. V. Tokarev and I. Zborovsky, “On Saturation of Charged hadron Production in pp Collisions at LHC,” Journal of Physics G: Nuclear and Particle Physics, Vol. 37, No. 8, 2010, Article ID: 085008. doi:10.1088/0954-3899/37/8/085008

[22]   M. V. Tokarev and I. Zborovsky, “Energy Loss in Hadron Production in pp and Heavy Ion Collisions,” Nuclear Physics B, Vol. 219-220, 2011, pp. 301-304. doi:10.1016/j.nuclphysbps.2011.10.116

[23]   M. Tokarev and I. Zborovsky, “First Test of z-Scaling in Hadron and Jet Production at LHC,” XLI International Symposium on Multiparticle Dynamics (ISMD2011), Hi- roshima, 26-30 September 2011.

[24]   D. Acosta, et al., “Measurement of the J/ψ meson and b-hadron Production Cross Sections in p-barp Collisions at = 1960 GeV,” Physical Review D, Vol. 71, 2005, Article ID: 032001. doi:10.1103/PhysRevD.71.032001

[25]   D. Acosta, et al., “Measurement of Prompt Charm Meson Production Cross Sections in p-barp Collisions at = 1:96 TeV,” Physical Review Letters, Vol. 91, No.24, 2003, Article ID: 241804. doi:10.1103/PhysRevLett.91.241804

[26]   D. Acosta, et al., “Y Production and Polarization in p-bar p Collisions at = 1.8 TeV,” Physical Review Letters, Vol. 88, No.16, 2002, Article ID: 161802. doi:10.1103/PhysRevLett.88.161802

[27]   B. Alper, et al., “Production Spectra of at Large Angles in Proton-Proton Collisions in the CERN Intersecting Storage Rings,” Nuclear Physics B, Vol. 100, No. 2, 1975, pp. 237-290. doi:10.1016/0550-3213(75)90618-5