scholarly journals Measurement of the differential cross-section of B + meson production in pp collisions at $ \sqrt{s}=7 $ TeV at ATLAS

2013 ◽  
Vol 2013 (10) ◽  
Author(s):  
G. Aad ◽  
◽  
T. Abajyan ◽  
B. Abbott ◽  
J. Abdallah ◽  
...  
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
B Meson ◽  
Meson Production ◽  
Pp Collisions

scholarly journals Energy dependence of $$\phi $$ meson production at forward rapidity in pp collisions at the LHC

2021 ◽  
Vol 81 (8) ◽  
Author(s):  
S. Acharya ◽  
D. Adamová ◽  
A. Adler ◽  
J. Adolfsson ◽  
G. Aglieri Rinella ◽  
...  
Keyword(s):  
Differential Cross Section ◽  
Energy Dependence ◽  
Cross Section ◽  
Cross Sections ◽  
Differential Cross ◽  
Decay Channel ◽  
Center Of Mass ◽  
Meson Production ◽  
Pp Collisions ◽  
Rapidity Distributions

AbstractThe production of $$\phi $$ ϕ mesons has been studied in pp collisions at LHC energies with the ALICE detector via the dimuon decay channel in the rapidity region $$2.5< y < 4$$ 2.5 < y < 4 . Measurements of the differential cross section $$\mathrm{d}^2\sigma /\mathrm{d}y \mathrm{d}p_{\mathrm {T}}$$ d 2 σ / d y d p T are presented as a function of the transverse momentum ($$p_{\mathrm {T}}$$ p T ) at the center-of-mass energies $$\sqrt{s}=5.02$$ s = 5.02 , 8 and 13 TeV and compared with the ALICE results at midrapidity. The differential cross sections at $$\sqrt{s}=5.02$$ s = 5.02 and 13 TeV are also studied in several rapidity intervals as a function of $$p_{\mathrm {T}}$$ p T , and as a function of rapidity in three $$p_{\mathrm {T}}$$ p T intervals. A hardening of the $$p_{\mathrm {T}}$$ p T -differential cross section with the collision energy is observed, while, for a given energy, $$p_{\mathrm {T}}$$ p T spectra soften with increasing rapidity and, conversely, rapidity distributions get slightly narrower at increasing $$p_{\mathrm {T}}$$ p T . The new results, complementing the published measurements at $$\sqrt{s}=2.76$$ s = 2.76 and 7 TeV, allow one to establish the energy dependence of $$\phi $$ ϕ meson production and to compare the measured cross sections with phenomenological models. None of the considered models manages to describe the evolution of the cross section with $$p_{\mathrm {T}}$$ p T and rapidity at all the energies.

scholarly journals Measurement of the high-mass Drell–Yan differential cross-section in pp collisions at s=7 TeV with the ATLAS detector

2013 ◽  
Vol 725 (4-5) ◽  
pp. 223-242 ◽  
Author(s):  
G. Aad ◽  
T. Abajyan ◽  
B. Abbott ◽  
J. Abdallah ◽  
S. Abdel Khalek ◽  
...  
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Atlas Detector ◽  
High Mass ◽  
Pp Collisions

scholarly journals VECTOR MESON PRODUCTION ABOVE THE RESONANCE REGION

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1765-1771
Author(s):  
◽  
MARCO BATTAGLIERI
Keyword(s):  
Differential Cross Section ◽  
Vector Meson ◽  
Cross Section ◽  
Differential Cross ◽  
Degrees Of Freedom ◽  
Meson Production ◽  
Resonance Region ◽  
Kinematic Range ◽  
Vector Meson Production

The total and differential cross section for exclusive vector meson electro- and photoproduction above the resonance region (2<W<3 GeV ) were measured at Jefferson Laboratory covering a wide kinematic range (0<Q2<5 GeV 2/c2 and 0<-t<5 GeV 2). These measurements provide a unique tool to investigate the transition between soft and hard physics. Our data indicates that this regime can be successfully and consistently described by using the so called effective partonic degrees of freedom.

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