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| Title: | Measuring KS 0K± interactions using pp collisions at √s=7 TeV |
| Authors: | Rath, Rutuparna Sahoo, Raghunath |
| Issue Date: | 2019 |
| Publisher: | Elsevier B.V. |
| Citation: | Acharya, S., Acosta, F. T., Adamová, D., Adler, A., Adolfsson, J., Aggarwal, M. M., . . . Zmeskal, J. (2019). Measuring KS0K± interactions using pp collisions at √s=7 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 790, 22-34. doi:10.1016/j.physletb.2018.12.033 |
| Abstract: | We present the first measurements of femtoscopic correlations between the KS 0 and K± particles in pp collisions at s=7 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding solely via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters for KS 0K− are found to be equal within the experimental uncertainties to those for KS 0K+. Results of the present study are compared with those from identical-kaon femtoscopic studies also performed with pp collisions at s=7 TeV by ALICE and with a KS 0K± measurement in Pb–Pb collisions at sNN=2.76 TeV. Combined with the Pb–Pb results, our pp analysis is found to be compatible with the interpretation of the a0(980) having a tetraquark structure instead of that of a diquark. © 2018 |
| URI: | https://doi.org/10.1016/j.physletb.2018.12.033 https://dspace.iiti.ac.in/handle/123456789/8147 |
| ISSN: | 0370-2693 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Physics |
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