Search for exclusive or semi exclusive gamma gamma production andobservation of exclusive and semi exclusive e e production in ppcollisions at root s 7 TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of High Energy Physics (Q4) | ||
| Dergi ISSN | 1126-6708 | ||
| Dergi Tarandığı Indeksler | SCI | ||
| Makale Dili | İngilizce | Basım Tarihi | 11-2012 |
| Cilt / Sayı / Sayfa | 2012 / 11 / – | DOI | 10.1007/JHEP11(2012)080 |
| UAK Araştırma Alanları |
Yüksek Enerji ve Parçacık Fiziği
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| Özet |
| A search for exclusive or semi-exclusive γγ production, pp→ p (*)+ γγ+ p (*)(where p* stands for a diffractively-dissociated proton), and the observation of exclusive and semi-exclusive e+ e− production, pp→ p (*)+ e+ e−+ p (*), in proton-proton collisions at TeV, are presented. The analysis is based on a data sample corresponding to an integrated luminosity of 36 pb− 1 recorded by the CMS experiment at the LHC at low instantaneous luminosities. Candidate γγ or e+ e− events are selected by requiring the presence of two photons or a positron and an electron, each with transverse energy E T> 5. 5 GeV and pseudorapidity| η|< 2. 5, and no other particles in the region| η|< 5. 2. No exclusive or semi-exclusive diphoton candidates are found in the data. An upper limit on the cross section for the reaction pp→ p (*)+ γγ+ p (*), within the above kinematic selections, is set at 1.18 pb at 95% confidence level … |
| Anahtar Kelimeler |
| Hadron-Hadron Scattering |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Scopus | 91 |
| Google Scholar | 116 |