Coherent rho(0) photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV

J. Adam; D. Adamová; MM. Aggarwal; G. Aglieri Rinella; M. Agnello; N. Agrawal; Z. Ahammed; SU Ahn; I. Aimo; S. Aiola; Ian Bearden; Hans Bøggild; Christian Holm Christensen; Kristjan Herlache Gulbrandsen; Jens Jørgen Gaardhøje; Børge Svane Nielsen; Alexander Colliander Hansen; Ante Bilandzic; Marek Chojnacki; Valentina Zaccolo

doi:10.1007/JHEP09(2015)095

Coherent rho(0) photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV

J. Adam, D. Adamová, MM. Aggarwal, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, SU Ahn, I. Aimo, S. Aiola, Ian Bearden, Hans Bøggild, Christian Holm Christensen, Kristjan Herlache Gulbrandsen, Jens Jørgen Gaardhøje, Børge Svane Nielsen, Alexander Colliander Hansen, Ante Bilandzic, Marek Chojnacki, Valentina Zaccolo

Experimental Particle Physics

25 Citations (Scopus)

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Abstract

We report the first measurement at the LHC of coherent photoproduction of ρ⁰ mesons in ultra-peripheral Pb-Pb collisions. The invariant mass and transverse momentum distributions for ρ⁰ production are studied in the π⁺π⁻ decay channel at mid-rapidity. The production cross section in the rapidity range |y| < 0.5 is found to be dσ/dy = 425 ± 10(stat.)_{− 50} ^{+ 42} (sys.) mb. Coherent ρ⁰ production is studied with and without requirement of nuclear breakup, and the fractional yields for various breakup scenarios are presented. The results are compared with those from lower energies and with model predictions.

Original language	English
Article number	095
Journal	Journal of High Energy Physics (Online)
Volume	2015
Issue number	9
ISSN	1126-6708
DOIs	https://doi.org/10.1007/JHEP09(2015)095
Publication status	Published - 29 Sept 2015

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Adam, J., Adamová, D., Aggarwal, MM., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., Ahn, SU., Aimo, I., Aiola, S., Bearden, I., Bøggild, H., Christensen, C. H., Gulbrandsen, K. H., Gaardhøje, J. J., Nielsen, B. S., Hansen, A. C., Bilandzic, A., Chojnacki, M., & Zaccolo, V. (2015). Coherent rho(0) photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV. Journal of High Energy Physics (Online), 2015(9), [095]. https://doi.org/10.1007/JHEP09(2015)095

Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Bearden, I , Bøggild, H , Christensen, CH , Gulbrandsen, KH , Gaardhøje, JJ , Nielsen, BS, Hansen, AC, Bilandzic, A, Chojnacki, M & Zaccolo, V 2015, 'Coherent rho(0) photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV', Journal of High Energy Physics (Online), vol. 2015, no. 9, 095. https://doi.org/10.1007/JHEP09(2015)095

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title = "Coherent rho(0) photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV",

abstract = "We report the first measurement at the LHC of coherent photoproduction of ρ0 mesons in ultra-peripheral Pb-Pb collisions. The invariant mass and transverse momentum distributions for ρ0 production are studied in the π+π− decay channel at mid-rapidity. The production cross section in the rapidity range |y| < 0.5 is found to be dσ/dy = 425 ± 10(stat.)− 50 + 42 (sys.) mb. Coherent ρ0 production is studied with and without requirement of nuclear breakup, and the fractional yields for various breakup scenarios are presented. The results are compared with those from lower energies and with model predictions.",

author = "J. Adam and D. Adamov{\'a} and MM. Aggarwal and {Aglieri Rinella}, G. and M. Agnello and N. Agrawal and Z. Ahammed and SU Ahn and I. Aimo and S. Aiola and Ian Bearden and Hans B{\o}ggild and Christensen, {Christian Holm} and Gulbrandsen, {Kristjan Herlache} and Gaardh{\o}je, {Jens J{\o}rgen} and Nielsen, {B{\o}rge Svane} and Hansen, {Alexander Colliander} and Ante Bilandzic and Marek Chojnacki and Valentina Zaccolo",

year = "2015",

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T1 - Coherent rho(0) photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV

AU - Adam, J.

AU - Adamová, D.

AU - Aggarwal, MM.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahn, SU

AU - Aimo, I.

AU - Aiola, S.

AU - Bearden, Ian

AU - Bøggild, Hans

AU - Christensen, Christian Holm

AU - Gulbrandsen, Kristjan Herlache

AU - Gaardhøje, Jens Jørgen

AU - Nielsen, Børge Svane

AU - Hansen, Alexander Colliander

AU - Bilandzic, Ante

AU - Chojnacki, Marek

AU - Zaccolo, Valentina

PY - 2015/9/29

Y1 - 2015/9/29

N2 - We report the first measurement at the LHC of coherent photoproduction of ρ0 mesons in ultra-peripheral Pb-Pb collisions. The invariant mass and transverse momentum distributions for ρ0 production are studied in the π+π− decay channel at mid-rapidity. The production cross section in the rapidity range |y| < 0.5 is found to be dσ/dy = 425 ± 10(stat.)− 50 + 42 (sys.) mb. Coherent ρ0 production is studied with and without requirement of nuclear breakup, and the fractional yields for various breakup scenarios are presented. The results are compared with those from lower energies and with model predictions.

AB - We report the first measurement at the LHC of coherent photoproduction of ρ0 mesons in ultra-peripheral Pb-Pb collisions. The invariant mass and transverse momentum distributions for ρ0 production are studied in the π+π− decay channel at mid-rapidity. The production cross section in the rapidity range |y| < 0.5 is found to be dσ/dy = 425 ± 10(stat.)− 50 + 42 (sys.) mb. Coherent ρ0 production is studied with and without requirement of nuclear breakup, and the fractional yields for various breakup scenarios are presented. The results are compared with those from lower energies and with model predictions.

U2 - 10.1007/JHEP09(2015)095

DO - 10.1007/JHEP09(2015)095

M3 - Journal article

SN - 1126-6708

VL - 2015

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

IS - 9

M1 - 095

ER -

Coherent rho(0) photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV

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