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Pregled bibliografske jedinice broj: 505781

$\Upsilon$ cross section in $p+p$ collisions at $\sqrt(s) = 200$ GeV.

Abelev, B.I.; ...; Planinić, Mirko; ...; Poljak, Nikola; ...
$\Upsilon$ cross section in $p+p$ collisions at $\sqrt(s) = 200$ GeV. // Physical Review D - Particles, Fields, Gravitation, and Cosmology, 82 (2010), 1; 012004-1 doi:10.1103/PhysRevD.82.012004 (međunarodna recenzija, članak, znanstveni)

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Naslov
$\Upsilon$ cross section in $p+p$ collisions at $\sqrt(s) = 200$ GeV.

Autori
Abelev, B.I. ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ...

Izvornik
Physical Review D - Particles, Fields, Gravitation, and Cosmology (1550-7998) 82 (2010), 1; 012004-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
p p; interaction upsilon mesons; hadroproduction upsilon mesons; leptonic decay electron positron; mass spectrum channel cross section; branching ratio energy dependence quantum chromodynamics; perturbation theory color; singlet Drell-Yan process quark antiquark; annihilation bottom STAR Brookhaven RHIC Coll upsilon mesons --> positron electron 200 GeV-cms/nucleon

Sažetak
We report on a measurement of the Upsilon(1S+2S+3S) -> e+e- cross section at midrapidity in p+p collisions at sqrt(s)=200 GeV. We find the cross section to be 114 +/- 38 (stat.) +23, -24 (syst.) pb. Perturbative QCD calculations at next-to-leading order in the Color Evaporation Model are in agreement with our measurement, while calculations in the Color Singlet Model underestimate it by 2 sigma. Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of Upsilon data to RHIC energies. The dielectron continuum in the invariant mass range near the Upsilon is also studied to obtain a combined cross section of Drell-Yan plus (b b-bar) -> e+e-.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
119-0982887-1006 - Istraživanje hadronskih sustava upotrebom relativističkih projektila (Planinić, Mirko, MZOS ) ( CroRIS)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Nikola Poljak (autor)

Poveznice na cjeloviti tekst rada:

doi prd.aps.org link.aps.org

Citiraj ovu publikaciju:

Abelev, B.I.; ...; Planinić, Mirko; ...; Poljak, Nikola; ...
$\Upsilon$ cross section in $p+p$ collisions at $\sqrt(s) = 200$ GeV. // Physical Review D - Particles, Fields, Gravitation, and Cosmology, 82 (2010), 1; 012004-1 doi:10.1103/PhysRevD.82.012004 (međunarodna recenzija, članak, znanstveni)
Abelev, B., ..., Planinić, M., ..., Poljak, N. & ... (2010) $\Upsilon$ cross section in $p+p$ collisions at $\sqrt(s) = 200$ GeV.. Physical Review D - Particles, Fields, Gravitation, and Cosmology, 82 (1), 012004-1 doi:10.1103/PhysRevD.82.012004.
@article{article, author = {Abelev, B.I. and Planini\'{c}, Mirko and Poljak, Nikola}, year = {2010}, pages = {012004-1-012004-17}, DOI = {10.1103/PhysRevD.82.012004}, keywords = {p p, interaction upsilon mesons, hadroproduction upsilon mesons, leptonic decay electron positron, mass spectrum channel cross section, branching ratio energy dependence quantum chromodynamics, perturbation theory color, singlet Drell-Yan process quark antiquark, annihilation bottom STAR Brookhaven RHIC Coll upsilon mesons --> positron electron 200 GeV-cms/nucleon}, journal = {Physical Review D - Particles, Fields, Gravitation, and Cosmology}, doi = {10.1103/PhysRevD.82.012004}, volume = {82}, number = {1}, issn = {1550-7998}, title = {$\Upsilon$ cross section in $p+p$ collisions at $\sqrt(s) = 200$ GeV.}, keyword = {p p, interaction upsilon mesons, hadroproduction upsilon mesons, leptonic decay electron positron, mass spectrum channel cross section, branching ratio energy dependence quantum chromodynamics, perturbation theory color, singlet Drell-Yan process quark antiquark, annihilation bottom STAR Brookhaven RHIC Coll upsilon mesons --> positron electron 200 GeV-cms/nucleon} }
@article{article, author = {Abelev, B.I. and Planini\'{c}, Mirko and Poljak, Nikola}, year = {2010}, pages = {012004-1-012004-17}, DOI = {10.1103/PhysRevD.82.012004}, keywords = {p p, interaction upsilon mesons, hadroproduction upsilon mesons, leptonic decay electron positron, mass spectrum channel cross section, branching ratio energy dependence quantum chromodynamics, perturbation theory color, singlet Drell-Yan process quark antiquark, annihilation bottom STAR Brookhaven RHIC Coll upsilon mesons --> positron electron 200 GeV-cms/nucleon}, journal = {Physical Review D - Particles, Fields, Gravitation, and Cosmology}, doi = {10.1103/PhysRevD.82.012004}, volume = {82}, number = {1}, issn = {1550-7998}, title = {$\Upsilon$ cross section in $p+p$ collisions at $\sqrt(s) = 200$ GeV.}, keyword = {p p, interaction upsilon mesons, hadroproduction upsilon mesons, leptonic decay electron positron, mass spectrum channel cross section, branching ratio energy dependence quantum chromodynamics, perturbation theory color, singlet Drell-Yan process quark antiquark, annihilation bottom STAR Brookhaven RHIC Coll upsilon mesons --> positron electron 200 GeV-cms/nucleon} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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