The fate of nonlinear perturbations near the QCD critical point
The impact of the QCD critical point on the propagation of nonlinear waves has been studied. The effects have been investigated within the scope of second-order causal dissipative hydrodynamics by incorporating the critical point into the equation of state, and the scaling behavior of transport coef...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-09-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321005232 |
| _version_ | 1818740014228439040 |
|---|---|
| author | Golam Sarwar Md Hasanujjaman Mahfuzur Rahaman Abhijit Bhattacharyya Jan-e Alam |
| author_facet | Golam Sarwar Md Hasanujjaman Mahfuzur Rahaman Abhijit Bhattacharyya Jan-e Alam |
| author_sort | Golam Sarwar |
| collection | DOAJ |
| description | The impact of the QCD critical point on the propagation of nonlinear waves has been studied. The effects have been investigated within the scope of second-order causal dissipative hydrodynamics by incorporating the critical point into the equation of state, and the scaling behavior of transport coefficients and of thermodynamic response functions. Near the critical point, the nonlinear waves are found to be significantly damped which may result in the disappearance of the Mach cone effects of the away side jet. Such damping may lead to enhancement in the fluctuations of elliptic and higher flow coefficients. Therefore, the disappearance of Mach cone effects and the enhancement of fluctuations in flow harmonics in the event-by-event analysis may be considered as signals of the critical endpoint. |
| first_indexed | 2024-12-18T01:33:59Z |
| format | Article |
| id | doaj.art-664901be0ab54f069d8cf9c9253447fc |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-18T01:33:59Z |
| publishDate | 2021-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-664901be0ab54f069d8cf9c9253447fc2022-12-21T21:25:31ZengElsevierPhysics Letters B0370-26932021-09-01820136583The fate of nonlinear perturbations near the QCD critical pointGolam Sarwar0Md Hasanujjaman1Mahfuzur Rahaman2Abhijit Bhattacharyya3Jan-e Alam4Department of Physics, University of Calcutta, 92, A.P.C. Road, Kolkata-700009, IndiaDepartment of Physics, Darjeeling Government College, Darjeeling-734101, IndiaVariable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata-700064, India; Homi Bhabha National Institute, Training School Complex, Mumbai-400085, IndiaDepartment of Physics, University of Calcutta, 92, A.P.C. Road, Kolkata-700009, IndiaVariable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata-700064, India; Homi Bhabha National Institute, Training School Complex, Mumbai-400085, IndiaThe impact of the QCD critical point on the propagation of nonlinear waves has been studied. The effects have been investigated within the scope of second-order causal dissipative hydrodynamics by incorporating the critical point into the equation of state, and the scaling behavior of transport coefficients and of thermodynamic response functions. Near the critical point, the nonlinear waves are found to be significantly damped which may result in the disappearance of the Mach cone effects of the away side jet. Such damping may lead to enhancement in the fluctuations of elliptic and higher flow coefficients. Therefore, the disappearance of Mach cone effects and the enhancement of fluctuations in flow harmonics in the event-by-event analysis may be considered as signals of the critical endpoint.http://www.sciencedirect.com/science/article/pii/S0370269321005232 |
| spellingShingle | Golam Sarwar Md Hasanujjaman Mahfuzur Rahaman Abhijit Bhattacharyya Jan-e Alam The fate of nonlinear perturbations near the QCD critical point Physics Letters B |
| title | The fate of nonlinear perturbations near the QCD critical point |
| title_full | The fate of nonlinear perturbations near the QCD critical point |
| title_fullStr | The fate of nonlinear perturbations near the QCD critical point |
| title_full_unstemmed | The fate of nonlinear perturbations near the QCD critical point |
| title_short | The fate of nonlinear perturbations near the QCD critical point |
| title_sort | fate of nonlinear perturbations near the qcd critical point |
| url | http://www.sciencedirect.com/science/article/pii/S0370269321005232 |
| work_keys_str_mv | AT golamsarwar thefateofnonlinearperturbationsneartheqcdcriticalpoint AT mdhasanujjaman thefateofnonlinearperturbationsneartheqcdcriticalpoint AT mahfuzurrahaman thefateofnonlinearperturbationsneartheqcdcriticalpoint AT abhijitbhattacharyya thefateofnonlinearperturbationsneartheqcdcriticalpoint AT janealam thefateofnonlinearperturbationsneartheqcdcriticalpoint AT golamsarwar fateofnonlinearperturbationsneartheqcdcriticalpoint AT mdhasanujjaman fateofnonlinearperturbationsneartheqcdcriticalpoint AT mahfuzurrahaman fateofnonlinearperturbationsneartheqcdcriticalpoint AT abhijitbhattacharyya fateofnonlinearperturbationsneartheqcdcriticalpoint AT janealam fateofnonlinearperturbationsneartheqcdcriticalpoint |