scholarly journals QCD and Rescattering in Nuclear Targets

2003 ◽  
Vol 12 (02) ◽  
pp. 149-164 ◽  
Author(s):  
Jianwei Qiu ◽  
George Sterman
Keyword(s):  
Perturbative Qcd ◽  
Factorization Formalism ◽  
Nuclear Targets

We review the extension of the factorization formalism of perturbative QCD to soft rescattering associated with hard processes in nuclei.

scholarly journals Production of the Bc Meson

1997 ◽  
Vol 12 (22) ◽  
pp. 4039-4048
Author(s):  
Yu-Qi Chen
Keyword(s):  
Transverse Momentum ◽  
Perturbative Qcd ◽  
High Energy ◽  
Factorization Formalism ◽  
Bc Meson ◽  
Hadronic Collisions

The production of the Bc and [Formula: see text] mesons was studied in the framework of the factorization formalism and perturbative QCD. Predicted results implied that an observable number of Bc and [Formula: see text] events can be produced at LEP I and at Tevatron. The fragmentation approximation describes the production of the Bc and [Formula: see text] mesons very well in high energy e+ e- collisions. In hadronic collisions, it is valid when and only when the transverse momentum PT of the produced Bc and [Formula: see text] is much larger than the mass of the Bc meson.

scholarly journals Low Energy Antikaon-nucleon/nuclei interaction studies by AMADEUS

2019 ◽  
Vol 199 ◽  
pp. 01014
Author(s):  
K. Piscicchia ◽  
M. Bazzi ◽  
G. Belloti ◽  
A. M. Bragadireanu ◽  
D. Bosnar ◽  
...  
Keyword(s):  
Cross Sections ◽  
Transition Amplitude ◽  
Nuclear Interaction ◽  
Branching Ratios ◽  
Analysis Procedure ◽  
Low Energy ◽  
Carbon Target ◽  
Pure Carbon ◽  
Nuclear Targets ◽  
Mass Spectroscopic Study

The AMADEUS experiment at the DAΦNE collider of LNF-INFN deals with the investigation of the at-rest, or low-momentum, K− interactions in light nuclear targets, with the aim to constrain the low energy QCD models in the strangeness sector. The 0 step of the experiment consisted in the reanalysis of the 2004/2005 KLOE data, exploiting K− absorptions in H, 4He, 9Be and 12C, leading to the first invariant mass spectroscopic study with very low momentum (about 100 MeV) in-flight K− captures. With AMADEUS step 1 a dedicated pure Carbon target was implemented in the central region of the KLOE detector, providing a high statistic sample of pure at-rest K− nuclear interaction. The first measurement of the non-resonant transition amplitude $\left| {{A_{{K^ - }n \to \Lambda {\pi ^ - }}}} \right|$ at $\sqrt s = 33\,MeV$ below the K̄N threshold is presented, in relation with the Λ(1405) properties studies. The analysis procedure adopted in the serarch for K− multi-nucleon absorption cross sections and Branching Ratios will be also described.

scholarly journals Bd,s0→f1f1 decays with f1(1285)−f1(1420) mixing in the perturbative QCD approach

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Zewen Jiang ◽  
De-Hua Yao ◽  
Zhi-Tian Zou ◽  
Xin Liu ◽  
Ying Li ◽  
...  
Keyword(s):  
Perturbative Qcd

scholarly journals The non-perturbative QCD Debye mass from a Wilson line operator

1999 ◽  
Vol 459 (1-3) ◽  
pp. 259-264 ◽  
Author(s):  
M. Laine ◽  
O. Philipsen
Keyword(s):  
Perturbative Qcd ◽  
Wilson Line ◽  
Debye Mass ◽  
Line Operator

scholarly journals Small-x physics in perturbative QCD

1997 ◽  
Vol 286 (3) ◽  
pp. 131-198 ◽  
Author(s):  
L.N. Lipatov
Keyword(s):  
Perturbative Qcd ◽  
Small X

scholarly journals Comparing energy loss and -broadening in perturbative QCD with strong coupling SYM theory

2008 ◽  
Vol 811 (1-2) ◽  
pp. 197-222 ◽  
Author(s):  
Fabio Dominguez ◽  
C. Marquet ◽  
A.H. Mueller ◽  
Bin Wu ◽  
Bo-Wen Xiao
Keyword(s):  
Energy Loss ◽  
Perturbative Qcd ◽  
Strong Coupling

scholarly journals |Vub| Determination by B → Dsπ

2003 ◽  
Vol 18 (22) ◽  
pp. 1557-1567 ◽  
Author(s):  
Hideaki Hayakawa ◽  
Kaoru Hosokawa ◽  
Takeshi Kurimoto
Keyword(s):  
Perturbative Qcd ◽  
B Meson ◽  
B Meson Decays ◽  
Meson Decays ◽  
Factorizable Contribution

We investigate [Formula: see text] decay in perturbative QCD approach which has recently been applied to B-meson decays. [Formula: see text] decay (and its charge conjugated mode) can be one of the hopeful modes to determine |Vub| since it occurs through b → u transition only. We estimate both factorizable and non-factorizable contribution, and show that the non-factorizable contribution is much less than the factorizable one. Our calculation gives [Formula: see text].

Perturbative QCD utilizing extended supersymmetry

1985 ◽  
Vol 157 (1) ◽  
pp. 81-84 ◽  
Author(s):  
Stephen J. Parke ◽  
T.R. Taylor
Keyword(s):  
Extended Supersymmetry ◽  
Perturbative Qcd
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