Unusual shadowing effects in particle production off nuclei

Blankenbecler, R.; Capella, A.; Vân, J. Trân Thanh; Pajares, C.; Ramallo, Alfonso V.

doi:10.1016/0370-2693(81)91159-x

Cited by 66 publications

(20 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This model is an extension of the model of Blankenbecler ^t al . 5 to include the effect of energy degradation. We sha<l focus our attentin on the longitudinal momentum distribution in terms of the Feynman scaling variable x.…”

mentioning

confidence: 99%

Baryon distribution in relativistic heavy-ion collisions

Wong

1984

Phys. Rev. D

View full text Add to dashboard Cite

mentioning

confidence: 99%

Baryon distribution in relativistic heavy-ion collisions

Wong

1984

Phys. Rev. D

View full text Add to dashboard Cite

“…The data [6] also show the disappearence of back-to-back jet-like hadron correlations in Au-Au collisions, contrary to what is observed in d-Au and p-p collisions, and a nonmonotonic behavior of the fluctuations in transverse momentum and multiplicity [6-9] with a maximum around low centralities. In order to explore further the physical phenomena involved [10], different correlations related to high p T events are being studied.High p T events are self-shadowed [11]. In this paper we show that due to this property the difference between the multiplicity associated to high p T events and the total multiplicity is directly related to the variance of the multiplicity distribution.…”

mentioning

confidence: 71%

“…High p T events are self-shadowed [11]. In this paper we show that due to this property the difference between the multiplicity associated to high p T events and the total multiplicity is directly related to the variance of the multiplicity distribution.…”

mentioning

confidence: 71%

See 1 more Smart Citation

Multiplicity associated to highpTevents and multiplicity fluctuations

2006

Self Cite

View full text Add to dashboard Cite

It is shown that the difference between the multiplicity associated to high p T events and the unbiased multiplicity is given by the normalized variance of the multiplicity distribution, as a consequence of high p T events being selfshadowed. We discuss the possibility of checking the nonmonotonic behavior with centrality of the normalized variance by measuring the difference between multiplicities. PACS number(s): 25.75.Nq, 12.38.Mh, 24.85.+p In the last few years very interesting phenomena related to high p T physics have been observed at RHIC experiments [1,4], namely, a strong supression of inclusive high p T hadron production in Au-Au central collisions compared to the scaling with the number of binary nucleon-nucleon collisions. The data [6] also show the disappearence of back-to-back jet-like hadron correlations in Au-Au collisions, contrary to what is observed in d-Au and p-p collisions, and a nonmonotonic behavior of the fluctuations in transverse momentum and multiplicity [6-9] with a maximum around low centralities. In order to explore further the physical phenomena involved [10], different correlations related to high p T events are being studied.High p T events are self-shadowed [11]. In this paper we show that due to this property the difference between the multiplicity associated to high p T events and the total multiplicity is directly related to the variance of the multiplicity distribution. In this way, the observed dependence on centrality of the normalized variance can be translated into the difference between multiplicities. In particular, the supression of the normalized variance at large centrality will correspond to a decrease in the difference between multiplicities with increasing centrality.The behavior of the normalized variance has been explained in the string percolation approach as a consequence of the dependence on centrality of the number of clusters with different number of strings. At low centrality there is no overlapping of strings, all the clusters have only one string and the fluctuations arise only from the multiplicity ditribution of one string. As the degree of centrality increases, clusters of different number of strings are formed giving rise to different multiplicity distributions due to the different color of the clusters and therefore different cluster tensions. Now, there are additional fluctuations coming from the different distributions. Above the percolation threshold, essentially only one large cluster is formed and again the fluctuations are suppressed. In this approach, the formation of such a large cluster implies that both multiplicities will be equal, independently of the hardness of the event.We start our discussion by describing hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions, which we label HH, as a superposition of independent elementary interactions. We are specifically interested in such collisions involving an elementary interaction or process of type C. We shall say that a particular HH collision or event is of type C if at least on...

show abstract

“…(5). We have to remember that when an interaction is uncut (located to either the right or the left of the cutting line), its amplitude (ia = −σ/2, for purely imaginary amplitudes) is unchanged.…”

Section: The Absorptive Cross Sectionmentioning

confidence: 97%

J/ψsuppression and the decrease of nuclear absorption with increasing energy

Capella

Ferreiro

2007

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

In the framework of the Glauber-Gribov field theory in the eikonal approximation, we show that in hadronnucleus collisions in the high-energy limit and under specific conditions, the rescattering contributions to the J /ψ production cross section vanish, leading to an A 1 dependence on the atomic number A-except for nuclear effects in the nucleus structure function, the so-called shadowing. We show that the data from the BNL Relativistic Heavy Ion Collider on J /ψ production in d-Au collisions can be described with nuclear shadowing alone (σ abs = 0). The corresponding results for Au-Au collisions are also presented and compared with available data.

show abstract

Unusual shadowing effects in particle production off nuclei

Cited by 66 publications

References 2 publications

Baryon distribution in relativistic heavy-ion collisions

Baryon distribution in relativistic heavy-ion collisions

Multiplicity associated to highpTevents and multiplicity fluctuations

J/ψsuppression and the decrease of nuclear absorption with increasing energy

Contact Info

Product

Resources

About