scholarly journals Measurement of double-differential cross sections for top quark pair production in pp collisions at $$\sqrt{s} = 8$$ s = 8 $$\,\text {TeV}$$ TeV and impact on parton distribution functions

2017 ◽  
Vol 77 (7) ◽  
Author(s):  
A. M. Sirunyan ◽  
◽  
A. Tumasyan ◽  
W. Adam ◽  
E. Asilar ◽  
...  
Keyword(s):  
Pair Production ◽  
Cross Sections ◽  
Differential Cross ◽  
Top Quark ◽  
Parton Distribution ◽  
Distribution Functions ◽  
Differential Cross Sections ◽  
Pp Collisions ◽  
Parton Distribution Functions

Small x Physics at the SSC and the Tevatron

1987 ◽  
Vol 02 (04) ◽  
pp. 1413-1423 ◽  
Author(s):  
FREDRICK OLNESS ◽  
WU-KI TUNG
Keyword(s):  
Pair Production ◽  
Production Process ◽  
Cross Sections ◽  
Differential Cross ◽  
Parton Distribution ◽  
Distribution Functions ◽  
Parton Distribution Functions ◽  
Small X ◽  
B Quark ◽  
Pair Production Process

We examine the integrated rates and differential cross-sections for b-quark pair production and Drell-Yan processes at the SSC and the Tevatron colliders, and we determine their sensitivity to a range of possible small x behaviors for the parton distribution functions (PDF’s). We find that both the integrated rates and the differential distributions for the Drell-Yan process are very sensitive to the unknown small x behavior of the PDF’s; whereas, only the integrated rates can distinguish various input PDF’s in the b-pair production process. Experiments at the Tevatron can provide very useful information on small x physics if these two processes, especially Drell-Yan, can be measured.

scholarly journals Associated top quark pair production with a heavy boson: differential cross sections at NLO + NNLL accuracy

2020 ◽  
Vol 80 (5) ◽  
Author(s):  
Anna Kulesza ◽  
Leszek Motyka ◽  
Daniel Schwartländer ◽  
Tomasz Stebel ◽  
Vincent Theeuwes
Keyword(s):  
Pair Production ◽  
Cross Sections ◽  
Differential Cross ◽  
Top Quark ◽  
Differential Cross Sections ◽  
Heavy Boson

scholarly journals Asymmetry Effects in Polarized Hadron Scattering

1997 ◽  
Vol 12 (32) ◽  
pp. 5827-5846
Author(s):  
Yaw-Hwang Chen ◽  
Su-Long Nyeo ◽  
Chung-Yi Wu
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Helicity Amplitude ◽  
Spin Asymmetry ◽  
Distribution Functions ◽  
Differential Cross Sections ◽  
Parton Distribution Functions ◽  
Double Spin Asymmetry ◽  
Single Spin ◽  
Double Spin

We calculate the single-spin and double-spin asymmetry differential cross sections for the polarized hadron scattering PP → l+ l- + jet up to O(αs) by the helicity amplitude method. Numerical results of the differential cross sections, which can be used to probe the spin contents of the proton, are obtained from several sets of polarized parton distribution functions.

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