Measurement of the cross-section of $Z𝛾$ and limits on ADD models at the CMS with 7 TeV Large Hadron Collider data

Pramana

Sandhya Jain1¹ 

[1] Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700 064, India$$

关键词: Large Hadron Collider;    compact muon solenoid;    initial-state radiation;    final-state radiation;    Arkani-Hamed–Dimopoulos–Dvali;    monophoton;    graviton;    extra dimension.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The measurement of the inclusive cross-section for $Z𝛾$ production at LHC with 7 TeV proton–proton collision is presented. The electron and muon decay modes are used to reconstruct the 𝑍 boson. The total cross-section is measured for photon transverse energy greater than 10 GeV and with photon and charged lepton separation in the pseudorapidity-azimuthal angle plane greater than 0.7. This study is extended by a measurement of $Z(𝜈 ar{𝜈})𝛾$ cross-section. A search is performed for extra dimensions in the Arkani-Hamed, Dimopoulos, Dvali framework using the final state of a graviton and photon. The limits are extended with MD > 1.25–1.31 TeV for 𝑛 = 2-6. The measurement is found to be in agreement with the Standard Model prediction.

【 授权许可】

Unknown