J/ψ and ψ′ production and their normal nuclear absorption in proton-nucleus collisions at 400 GeV

被引：105

作者：

Alessandro, B.

Alexa, C.

Arnaldi, R.

Atayan, M.

Beole, S.

Boldea, V.

Bordalo, P.

Borges, G.

Castor, J.

Chaurand, B.

Cheynis, B.

Chiavassa, E.

Cicalo, C.

Comets, M. P.

Constantinescu, S.

Cortese, P. ^{[1
]}

De Falco, A.

De Marco, N.

Dellacasa, G.

Devaux, A.

Dita, S.

Fargeix, J.

Force, P.

Gallio, M.

Gerschel, C.

Giubellino, P.

Golubeva, M. B.

Grigoryan, A.

Grossiord, J. Y.

Guber, F. F.

Guichard, A.

Gulkanyan, H.

Idzik, M.

Jouan, D.

Karavicheva, T. L.

Kluberg, L.

Kurepin, A. B.

Le Bornec, Y.

Lourenco, C.

Mac Cormick, M.

Marzari-Chiesa, A.

Masera, M.

Masoni, A.

Monteno, M.

Musso, A.

Petiau, P.

Piccotti, A.

Pizzi, J. R.

Prino, F.

Puddu, G.

机构：

[1] Univ Turin, Ist Nazl Fis Nucl, Turin, Italy

[2] Univ Piemonte Orientale, Turin, Italy

[3] Univ Blaise Pascal, LPC, Aubiere, France

[4] IN2P3, CNRS, Aubiere, France

[5] IFA, Bucharest, Romania

[6] Univ Cagliari, Ist Nazl Fis Nucl, Cagliari, Italy

[7] CERN, Geneva, Switzerland

[8] LIP, P-1000 Lisbon, Portugal

[9] INR, Moscow, Russia

[10] Univ Paris Sud, IPN, Orsay, France

[11] IN2P3, CNRS, Orsay, France

[12] Ecole Polytech, LLR, Palaiseau, France

[13] IN2P3, CNRS, Palaiseau, France

[14] Univ Lyon 1, IPN, F-69622 Villeurbanne, France

[15] IN2P3, CNRS, Villeurbanne, France

[16] YerPhI, Yerevan, Armenia

[17] Univ Tecn Lisboa, Inst Super Tecn, P-1096 Lisbon, Portugal

[18] AGH Univ Sci & Technol, Fac Phys & Nucl Tech, Krakow, Poland

来源：

EUROPEAN PHYSICAL JOURNAL C | 2006年 / 48卷 / 02期

关键词：

D O I：

10.1140/epjc/s10052-006-0079-4

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We report a new measurement of J/psi,psi ' and Drell-Yan cross-sections, in the kinematical domain -0.425 < ycm < 0.575 and -0.5 < cos(theta)CS < 0.5, performed at the CERN- SPS using 400 GeV/c incident protons on Be, Al, Cu, Ag, W and Pb targets. The dependence of the charmonia production cross-sections on the size of the target nucleus allows to quantify the so-called normal nuclear absorption. In the framework of the Glauber model, this new measurement is combined with results previously obtained with the same apparatus, under different experimental conditions, and leads to a precise determination of the J/psi and psi ' absorption cross-sections in the surrounding nuclear matter.

引用

页码：329 / 341

页数：13

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