SPIN TRANSFER IN FRAGMENTATION PROCESSES AND HYPERON POLARIZATION IN DEEP-INELASTIC SCATTERING

2003 ◽  
Vol 18 (08) ◽  
pp. 1485-1489 ◽  
Author(s):  
CHUN-XIU LIU ◽  
QING-HUA XU ◽  
ZUO-TANG LIANG
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
High Energy ◽  
Polarization Transfer ◽  
Spin Transfer ◽  
Fragmentation Process ◽  
Good Test ◽  
Fragmentation Processes ◽  
Transfer Mechanisms ◽  
Existing Data

We present the results for the polarizations of different octet hyperons produced in the current fragmentation regions of μ- N or νμ N deep-inelastic scatterings using different models for spin transfer in fragmentation processes. We found that measuring the polarization of Σ+ produced in these processes can give a good test to the validity of the different spin transfer models. Measuring PΣ+(T) in transversely polarized case should be able to give an useful check whether in high-energy fragmentation process the polarization transfer mechanisms are the same for both the longitudinally polarized and transversely polarized cases. A comparison with the existing data is made.

HIGH ENERGY LIMIT IN QCD

2011 ◽  
Vol 26 (09) ◽  
pp. 603-623
Author(s):  
ANNA M. STASTO
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Energy Limit ◽  
High Energy Limit ◽  
Ion Collisions ◽  
Small X

We briefly review some selected topics in the small x physics. In particular, we discuss the progress in the problem related to the resummation at small x and the parton saturation phenomena. Finally we discuss some phenomenological applications to deep inelastic scattering, hadron and heavy ion collisions.

scholarly journals CRITICAL PHENOMENA IN DEEP INELASTIC SCATTERING

2010 ◽  
Vol 25 (31) ◽  
pp. 5667-5682 ◽  
Author(s):  
L. L. JENKOVSZKY ◽  
ANDREA NAGY ◽  
S. M. TROSHIN ◽  
JOLÁN TURÓCI ◽  
N. E. TYURIN
Keyword(s):  
Phase Transition ◽  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Deeply Virtual Compton Scattering ◽  
Virtual Compton Scattering ◽  
Heavy Ion ◽  
High Energy ◽  
Ion Collisions ◽  
Bjorken X ◽  
Insight Into

Saturation in deep inelastic scattering and deeply virtual Compton scattering is associated with a phase transition between the partonic gas, typical of moderate x and Q2, and partonic fluid appearing at increasing Q2 and decreasing Bjorken x. In this paper we do not intend to propose another parametrization of the structure function; instead we suggest a new insight into the internal structure of the nucleon, as seen in deep inelastic scattering, and its connection with that revealed in high-energy nucleons and heavy-ion collisions.

scholarly journals The challenge of the EMC effect: Existing data and future directions

2014 ◽  
Vol 23 (08) ◽  
pp. 1430013 ◽  
Author(s):  
Simona Malace ◽  
David Gaskell ◽  
Douglas W. Higinbotham ◽  
Ian C. Cloët
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Cross Sections ◽  
Charged Lepton ◽  
Current Status ◽  
Theoretical Understanding ◽  
Future Directions ◽  
Precise Data ◽  
Emc Effect ◽  
Existing Data

Since the discovery that the ratio of inclusive charged lepton (per-nucleon) cross-sections from a nucleus A to the deuteron is not unity — even in deep inelastic scattering kinematics — a great deal of experimental and theoretical effort has gone into understanding the phenomenon. The EMC effect, as it is now known, shows that even in the most extreme kinematic conditions the effects of the nucleon being bound in a nucleus cannot be ignored. In this paper, we collect the most precise data available for various nuclear to deuteron ratios, as well as provide a commentary on the current status of the theoretical understanding of this thirty year old effect.

scholarly journals Diffusive scaling and the high-energy limit of deep inelastic scattering in QCD at large

2006 ◽  
Vol 773 (1-2) ◽  
pp. 95-155 ◽  
Author(s):  
Y. Hatta ◽  
E. Iancu ◽  
C. Marquet ◽  
G. Soyez ◽  
D.N. Triantafyllopoulos
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
High Energy ◽  
Energy Limit ◽  
High Energy Limit

On the possibility of gluon number fluctuations in diffractive deep inelastic scattering data with impact parameter

2016 ◽  
Vol 31 (33) ◽  
pp. 1650186
Author(s):  
Z. Hu ◽  
W. Xiang ◽  
S. Cai
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Impact Parameter ◽  
Scattering Amplitude ◽  
Global Analysis ◽  
High Energy ◽  
Scattering Data ◽  
Deep Inelastic Scattering Data ◽  
Saturation Exponent ◽  
The Impact

A global analysis of the latest diffractive deep inelastic scattering (DIS) data with gluon number fluctuations and impact parameter is performed. The impact parameter is introduced into the scattering amplitude by saturation scale with a Gaussian b-dependence. The results show that the description of the diffractive DIS data is improved once the gluon number fluctuations and impact parameter are included, with [Formula: see text]/d.o.f = 0.878, [Formula: see text]/d.o.f = 0.928 and [Formula: see text]/d.o.f = 0.897 in different sets of free parameters. Moreover, we find that the impact parameter ([Formula: see text] 0.1) is possibly compressed by the gluon number fluctuations, which leads to the value of saturation exponent returning to [Formula: see text] 0.2. This outcome is compatible with the prediction that the saturation exponent is dominated by the fluctuations at sufficiently high energy, which may indicate the possibility of gluon number fluctuations in diffractive DIS data.

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