Determination of Strong-Interaction Nuclear Radii

Alvensleben, H.; Becker, U.; Bertram, William K.; Chen, M.; Cohen, Kenneth J.; Knasel, T.M.; Marshall, R.; Quinn, D. J.; Rohde, M.; Sanders, G. H.; Schubel, H.; Ting, Samuel C.C.

doi:10.1103/physrevlett.24.792

Cited by 61 publications

(8 citation statements)

References 24 publications

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“…At RHIC energies, the longitudinal component of the fourmomentum transfer is small so that t ≈ t ⊥ . Without interference, dN /dt ∝ exp(−bt) [79,375]. Fig.…”

Section: Interferencementioning

confidence: 99%

The physics of ultraperipheral collisions at the LHC

et al. 2008

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229 Pages, 121 figuresWe discuss the physics of large impact parameter interactions at the LHC: ultraperipheral collisions (UPCs). The dominant processes in UPCs are photon-nucleon (nucleus) interactions. The current LHC detector configurations can explore small $x$ hard phenomena with nuclei and nucleons at photon-nucleon center-of-mass energies above 1 TeV, extending the $x$ range of HERA by a factor of ten. In particular, it will be possible to probe diffractive and inclusive parton densities in nuclei using several processes. The interaction of small dipoles with protons and nuclei can be investigated in elastic and quasi-elastic $J/\psi$ and $\Upsilon$ production as well as in high $t$ $\rho^0$ production accompanied by a rapidity gap. Several of these phenomena provide clean signatures of the onset of the new high gluon density QCD regime. The LHC is in the kinematic range where nonlinear effects are several times larger than at HERA. Two-photon processes in UPCs are also studied. In addition, while UPCs play a role in limiting the maximum beam luminosity, they can also be used a luminosity monitor by measuring mutual electromagnetic dissociation of the beam nuclei. We also review similar studies at HERA and RHIC as well as describe the potential use of the LHC detectors for UPC measurements

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“…At RHIC energies, the longitudinal component of the fourmomentum transfer is small so that t ≈ t ⊥ . Without interference, dN /dt ∝ exp(−bt) [79,375]. Fig.…”

Section: Interferencementioning

confidence: 99%

The physics of ultraperipheral collisions at the LHC

et al. 2008

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“…Furthermore, these radii are systematically larger than the nuclear charge radii obtained from low-energy electron scattering ( 51 ). It should be noted that the strong-interaction nuclear radii have been measured at other facilities at lower energies ( 7 , 8 , 52 ) with diffractive photoproduction of ρ 0 in photon-nucleus collisions. A scaling of R = (1.12 ± 0.02) A 1/3 was extracted from the experimental data at the German Electron Synchrotron (DESY) ( 7 , 52 ) with R Au = 6.45 ± 0.27 fm and R U = 6.90 ± 0.14 fm, while another experiment at Cornell ( 8 ) obtained R Au = 6.74 ± 0.06 fm.…”

Section: Discussionmentioning

confidence: 99%

“…It should be noted that the strong-interaction nuclear radii have been measured at other facilities at lower energies ( 7 , 8 , 52 ) with diffractive photoproduction of ρ 0 in photon-nucleus collisions. A scaling of R = (1.12 ± 0.02) A 1/3 was extracted from the experimental data at the German Electron Synchrotron (DESY) ( 7 , 52 ) with R Au = 6.45 ± 0.27 fm and R U = 6.90 ± 0.14 fm, while another experiment at Cornell ( 8 ) obtained R Au = 6.74 ± 0.06 fm. The neutron skin ( 53 ), a root mean square difference between the neutral and nuclear charge radii, has been measured in even-even stable nuclei and shown to be around 0.3 fm for 208 Pb ( 54 ).…”

Section: Discussionmentioning

confidence: 99%

Tomography of ultrarelativistic nuclei with polarized photon-gluon collisions

Collaboration¹,

Abdallah²,

Aboona³

et al. 2023

Sci. Adv.

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A linearly polarized photon can be quantized from the Lorentz-boosted electromagnetic field of a nucleus traveling at ultrarelativistic speed. When two relativistic heavy nuclei pass one another at a distance of a few nuclear radii, the photon from one nucleus may interact through a virtual quark-antiquark pair with gluons from the other nucleus, forming a short-lived vector meson (e.g., ρ 0 ). In this experiment, the polarization was used in diffractive photoproduction to observe a unique spin interference pattern in the angular distribution of ρ 0 → π + π − decays. The observed interference is a result of an overlap of two wave functions at a distance an order of magnitude larger than the ρ 0 travel distance within its lifetime. The strong-interaction nuclear radii were extracted from these diffractive interactions and found to be 6.53 ± 0.06 fm ( 197 Au) and 7.29 ± 0.08 fm ( 238 U), larger than the nuclear charge radii. The observable is demonstrated to be sensitive to the nuclear geometry and quantum interference of nonidentical particles.

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“…where E π is the pion energy, θ π is the angle of the pion with regards to the neutrino beam, and [94], [95]. This condition makes it a model-dependent analysis, given that imposing the above condition requires imposing conditions on the lepton kinematics and Q 2 when using equation 3.8.…”

Section: Experimental Signaturementioning

confidence: 99%

$\nu_{\mu}$-Induced CC Coherent $\pi^{+}$ Production Off Carbon, Hydrocarbon, Iron, and Lead Using the MINER&#957;A Detector

Delgado

Alejandro²

2020

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Doctors Trung Le and Daniel Ruterbories helped me with their expertise on a daily basis, also with unsurpassable quality and patience. A special mention to Doctor Leo Bellantoni, the first one to dedicate a lot of time an effort in myself as a grad student.My parents Irma and José who always showed me the example to follow and the inspiration to move forward. I cannot express how much I thank you for teaching me to pursue what I want.My siblings Pepe, Juan and Mariana, perhaps not aware of your contribution, thank you for always being there.My wife Maricruz and my Daughter AnaMá, my strongest reason, the pushing force, and the most precious beings I could ever met. I owe you so much, you have given me everything.

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Determination of Strong-Interaction Nuclear Radii

Cited by 61 publications

References 24 publications

The physics of ultraperipheral collisions at the LHC

The physics of ultraperipheral collisions at the LHC

Tomography of ultrarelativistic nuclei with polarized photon-gluon collisions

$\nu_{\mu}$-Induced CC Coherent $\pi^{+}$ Production Off Carbon, Hydrocarbon, Iron, and Lead Using the MINER&#957;A Detector

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Determination of Strong-Interaction Nuclear Radii

Cited by 61 publications

References 24 publications

The physics of ultraperipheral collisions at the LHC

The physics of ultraperipheral collisions at the LHC

Tomography of ultrarelativistic nuclei with polarized photon-gluon collisions

$\nu_{\mu}$-Induced CC Coherent $\pi^{+}$ Production Off Carbon, Hydrocarbon, Iron, and Lead Using the MINER&amp;#957;A Detector

Contact Info

Product

Resources

About

$\nu_{\mu}$-Induced CC Coherent $\pi^{+}$ Production Off Carbon, Hydrocarbon, Iron, and Lead Using the MINERνA Detector